/// <summary>
/// Converts the tree recursive.
/// </summary>
/// <param name="ulParent">The ul parent.</param>
/// <param name="node">The node.</param>
public void ConvertTreeRecursive(HtmlGenericControl ulParent, ASTreeViewNode node)
{
foreach (ASTreeViewNode child in node.ChildNodes)
{
HtmlGenericControl liCurrent = ConvertNode(child);
liCurrent.ID = string.Format("t_l_{0}", liCounter++ /*, new Random().Next(1000, 9000)*/);
ulParent.Controls.Add(liCurrent);
if (child.ChildNodes.Count > 0)
{
HtmlGenericControl ulCurrent = new HtmlGenericControl();
ulCurrent.TagName = "ul";
if (child.OpenState == ASTreeViewNodeOpenState.Close)
{
ulCurrent.Attributes.Add("style", "display:none;");
}
if (this.currentTreeView.EnableTreeLines)
{
if (!(child.ParentNode != null && child.ParentNode.ChildNodes.IndexOf(child) == child.ParentNode.ChildNodes.Count - 1))
{
ulCurrent.Attributes.Add("class", this.currentTreeView.CssClassLineVertical /*"line-vertical"*/);
}
else
{
ulCurrent.Attributes.Add("class", this.currentTreeView.CssClassLineNone /*"line-none"*/);
}
}
liCurrent.Controls.Add(ulCurrent);
this.ConvertTreeRecursive(ulCurrent, child);
}
}
}
/// <summary>
/// Builds the tree from data source.
/// </summary>
/// <param name="parentNode">The parent node.</param>
/// <param name="dataSource">The data source.</param>
/// <param name="parentNodeValue">The parent node value.</param>
public override void BuildTreeFromDataSource(ASTreeViewNode parentNode, object dataSource, object parentNodeValue)
{
XmlDocument doc = (XmlDocument)dataSource;
XmlNode docRoot = doc.SelectSingleNode("/astreeview");
ConvertXmlNodeRecursive(parentNode, docRoot);
/*
* string whereClause = string.Empty;
* if( parentValue != null )
* {
* string pattern = this.AddSingleQuotationOnQuery ? "[{0}]='{1}'" : "[{0}]={1}";
*
* whereClause = string.Format( pattern, this.ParentNodeValueColumnName, parentValue );
* }
* else
* whereClause = string.Format( "[{0}] is NULL", this.ParentNodeValueColumnName );
*
* DataRow[] drs = dt.Select( whereClause );
* foreach( DataRow dr in drs )
* {
* //convert node
* ASTreeViewNode node = new ASTreeViewNode();
* node.NodeText = GetString( dr[this.NodeTextColumnName], true );
* node.NodeValue = GetString( dr[this.NodeValueColumnName], true );
* parentNode.AppendChild( node );
*
*
* string currentNodeValue = node.NodeValue;
* //call recursively
* BuildTreeFromDataSource( node, dt, currentNodeValue );
* }
*/
}
/// <summary>
/// Parses the json tree recursive.
/// </summary>
/// <param name="parent">The parent.</param>
/// <param name="treeJson">The tree json.</param>
private void ParseJsonTreeRecursive(ASTreeViewNode parent, JsonArray treeJson)
{
for (int i = 0; i < treeJson.Count; i++)
{
IJsonType type = treeJson[i];
if (type is JsonObject)
{
JsonObject joTreeNode = (JsonObject)type;
ASTreeViewNode curNode = ParseJsonToNode(joTreeNode);
if (i + 1 < treeJson.Count)
{
//test next item
IJsonType nextType = treeJson[i + 1];
if (nextType is JsonArray)
{
//has children
ParseJsonTreeRecursive(curNode, (JsonArray)nextType);
//skip next
i++;
}
}
parent.AppendChild(curNode);
}
}
}
/// <summary>
/// Converts the checkbox.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
private HtmlImage ConvertCheckbox(ASTreeViewNode node)
{
HtmlImage imgCheckbox = new HtmlImage();
imgCheckbox.Attributes.Add("class", this.currentTreeView.CssClassCheckbox);
switch (node.CheckedState)
{
case ASTreeViewCheckboxState.Checked:
imgCheckbox.Src = this.currentTreeView.ImgCheckboxChecked;
break;
case ASTreeViewCheckboxState.HalfChecked:
imgCheckbox.Src = this.currentTreeView.ImgCheckboxHalfChecked;
break;
case ASTreeViewCheckboxState.Unchecked:
imgCheckbox.Src = this.currentTreeView.ImgCheckboxUnchecked;
break;
default:
imgCheckbox.Src = this.currentTreeView.ImgCheckboxUnchecked;
break;
}
imgCheckbox.Attributes.Add("checkedState", ((int)node.CheckedState).ToString());
return(imgCheckbox);
}
/// <summary>
/// Appends the child.
/// </summary>
/// <param name="child">The child.</param>
/// <returns></returns>
public ASTreeViewNode AppendChild(ASTreeViewNode child)
{
child.SetParent(this);
this.childNodes.Add(child);
return(this);
}
/// <summary>
/// Parses the json tree.
/// </summary>
/// <param name="root">The root.</param>
/// <param name="treeJsonString">The tree json string.</param>
/// <returns></returns>
public ASTreeViewNode ParseJsonTree(ASTreeViewNode root, string treeJsonString)
{
//if root is null, genereate the root
if (root == null)
{
root = new ASTreeViewNode();
root.NodeValue = this.currentTreeView.RootNodeValue;
root.NodeText = this.currentTreeView.RootNodeText;
}
if (string.IsNullOrEmpty(treeJsonString))
{
return(root);
}
JsonArray treeJson;
using (JsonParser parser = new JsonParser(new StringReader(treeJsonString), true))
{
parser.MaximumDepth = this.currentTreeView.MaxDepth;
treeJson = parser.ParseArray();
}
this.ParseJsonTreeRecursive(root, treeJson);
//if( this.currentTreeView.EnableThreeStateCheckbox )
// this.ManageCheckboxState( root );
return(root);
}
/// <summary>
/// Gets the node json string.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
public string GetNodeJsonString(ASTreeViewNode node)
{
using (JsonWriter writer = new JsonWriter())
{
this.GetNodeJson(node).Write(writer);
return(writer.ToString());
}
}
/// <summary>
/// Removes the specified node.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
public ASTreeViewNode Remove(ASTreeViewNode node)
{
if (this.childNodes.Contains(node))
{
this.childNodes.Remove(node);
node.SetParent(null);
}
return(this);
}
/// <summary>
/// Manages the state of the check box.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
public ASTreeViewCheckboxState ManageCheckboxState(ASTreeViewNode node)
{
if (node.ChildNodes.Count == 0)
{
return(node.CheckedState);
}
int totalChildrenCount = node.ChildNodes.Count;
int checkedNodesCount = 0;
int halfCheckedNodesCount = 0;
foreach (ASTreeViewNode curChildNode in node.ChildNodes)
{
ASTreeViewCheckboxState curState = this.ManageCheckboxState(curChildNode);
if (curState == ASTreeViewCheckboxState.Checked)
{
checkedNodesCount++;
}
if (curChildNode.CheckedState == ASTreeViewCheckboxState.Checked && curChildNode.ChildNodes.Count > 0)
{
checkedNodesCount++;
}
if (curChildNode.CheckedState == ASTreeViewCheckboxState.HalfChecked && curChildNode.ChildNodes.Count > 0)
{
halfCheckedNodesCount++;
}
}
if (halfCheckedNodesCount > 0)
{
node.CheckedState = ASTreeViewCheckboxState.HalfChecked;
}
else
{
if (checkedNodesCount == 0)
{
node.CheckedState = ASTreeViewCheckboxState.Unchecked;
}
else if (checkedNodesCount == totalChildrenCount)
{
node.CheckedState = ASTreeViewCheckboxState.Checked;
}
else
{
node.CheckedState = ASTreeViewCheckboxState.HalfChecked;
}
}
return(ASTreeViewCheckboxState.Unchecked);//return unchecked if not leaf node
}
/// <summary>
/// Inserts the specified index.
/// </summary>
/// <param name="index">The index.</param>
/// <param name="node">The node.</param>
/// <returns></returns>
public ASTreeViewNode Insert(int index, ASTreeViewNode node)
{
if (index > this.childNodes.Count)
{
this.AppendChild(node);
}
else
{
this.childNodes.Insert(index, node);
}
node.SetParent(this);
return(this);
}
/// <summary>
/// Determines whether the specified node contains offspring.
/// </summary>
/// <param name="node">The node.</param>
/// <returns>
/// <c>true</c> if the specified node contains offspring; otherwise, <c>false</c>.
/// </returns>
public bool ContainsOffspring(ASTreeViewNode node)
{
if (this.childNodes.Contains(node))
{
return(true);
}
foreach (ASTreeViewNode child in this.childNodes)
{
if (child.ContainsOffspring(node))
{
return(true);
}
}
return(false);
}
/// <summary>
/// Converts the XML node recursive.
/// </summary>
/// <param name="parentNode">The parent node.</param>
/// <param name="node">The node.</param>
private void ConvertXmlNodeRecursive(ASTreeViewNode parentNode, XmlNode node)
{
XmlNodeList childNodes = node.SelectNodes("astreeview-nodes/astreeview-node");
if (childNodes == null || childNodes.Count == 0)
{
return;
}
foreach (XmlNode childNode in childNodes)
{
ASTreeViewNode treeNode = ConvertXmlNodeToTreeNode(childNode);
parentNode.AppendChild(treeNode);
ConvertXmlNodeRecursive(treeNode, childNode);
}
}
/// <summary>
/// Creates the XML node recursive.
/// </summary>
/// <param name="xmlParentNode">The XML parent node.</param>
/// <param name="treeNode">The tree node.</param>
protected void CreateXMLNodeRecursive(XmlNode xmlParentNode, ASTreeViewNode treeNode)
{
XmlNode xmlNode = XmlHelper.AddElement(xmlParentNode, "astreeview-node", null);
XmlHelper.AddAttribute(xmlNode, "node-text", treeNode.NodeText);
XmlHelper.AddAttribute(xmlNode, "node-value", treeNode.NodeValue);
#region nodeType
ASTreeViewNodeType nodeType = treeNode.NodeType;
XmlHelper.AddAttribute(xmlNode, "node-type", ((int)nodeType).ToString());
#endregion
XmlHelper.AddAttribute(xmlNode, "checked-state", ((int)treeNode.CheckedState).ToString());
XmlHelper.AddAttribute(xmlNode, "open-state", ((int)treeNode.OpenState).ToString());
XmlHelper.AddAttribute(xmlNode, "selected", treeNode.Selected.ToString().ToLower());
XmlHelper.AddAttribute(xmlNode, "enable-edit-context-menu", treeNode.EnableEditContextMenu.ToString().ToLower());
XmlHelper.AddAttribute(xmlNode, "enable-delete-context-menu", treeNode.EnableDeleteContextMenu.ToString().ToLower());
XmlHelper.AddAttribute(xmlNode, "enable-add-context-menu", treeNode.EnableAddContextMenu.ToString().ToLower());
XmlHelper.AddAttribute(xmlNode, "node-icon", treeNode.NodeIcon);
XmlHelper.AddAttribute(xmlNode, "enable-drag-drop", treeNode.EnableDragDrop.ToString().ToLower());
XmlHelper.AddAttribute(xmlNode, "enable-siblings", treeNode.EnableSiblings.ToString().ToLower());
XmlHelper.AddAttribute(xmlNode, "enable-children", treeNode.EnableChildren.ToString().ToLower());
XmlHelper.AddAttribute(xmlNode, "enable-checkbox", treeNode.EnableCheckbox.ToString().ToLower());
XmlHelper.AddAttribute(xmlNode, "enable-selection", treeNode.EnableSelection.ToString().ToLower());
XmlHelper.AddAttribute(xmlNode, "enable-open-close", treeNode.EnableOpenClose.ToString().ToLower());
if (nodeType == ASTreeViewNodeType.HyperLink)
{
ASTreeViewLinkNode linkNode = (ASTreeViewLinkNode)treeNode;
XmlHelper.AddAttribute(xmlNode, "navigate-url", linkNode.NavigateUrl);
XmlHelper.AddAttribute(xmlNode, "target", linkNode.Target);
XmlHelper.AddAttribute(xmlNode, "tooltip", linkNode.Tooltip);
}
if (treeNode.ChildNodes.Count > 0)
{
XmlNode astreeviewNodes = XmlHelper.AddElement(xmlNode, "astreeview-nodes", null);
foreach (ASTreeViewNode node in treeNode.ChildNodes)
{
CreateXMLNodeRecursive(astreeviewNodes, node);
}
}
}
/// <summary>
/// Converts the tree.
/// </summary>
/// <param name="ulTree">The ul tree.</param>
/// <param name="root">The root.</param>
/// <param name="includeRoot">if set to <c>true</c> [include root].</param>
public void ConvertTree(HtmlGenericControl ulTree, ASTreeViewNode root, bool includeRoot)
{
//BulletedList blTree = new BulletedList();
if (includeRoot)
{
HtmlGenericControl liRoot = this.ConvertNode(root);
liRoot.ID = string.Format("t_l_{0}", liCounter++ /*, new Random().Next( 1000, 9000 )*/);
liRoot.Attributes.Add("disableDragDrop", "true");
liRoot.Attributes.Add("disableSiblings", "true");
//liRoot.Attributes.Add( "noDelete", "true" );
//liRoot.Attributes.Add( "noRename", "true" );
if (this.currentTreeView.EnableTreeLines)
{
liRoot.Attributes.Add("class", this.currentTreeView.CssClassLineRoot /*"line-bottom"*/);
}
ulTree.Controls.Add(liRoot);
if (root.ChildNodes.Count > 0)
{
HtmlGenericControl ulRoot = new HtmlGenericControl();
//ulRoot.ID = string.Format( "ul_node_{0}", ulCounter++ );
ulRoot.TagName = "ul";
if (root.OpenState == ASTreeViewNodeOpenState.Close)
{
ulRoot.Attributes.Add("style", "display:none;");
}
liRoot.Controls.Add(ulRoot);
ConvertTreeRecursive(ulRoot, root);
}
}
else
{
liCounter++;
ConvertTreeRecursive(ulTree, root);
}
//controlContinaer.Controls.Add( blTree );
}
/// <summary>
/// Builds the tree from data source.
/// </summary>
/// <param name="parentNode">The parent node.</param>
/// <param name="dataSource">The data source.</param>
/// <param name="parentNodeValue">The parent node value.</param>
public override void BuildTreeFromDataSource(ASTreeViewNode parentNode, object dataSource, object parentNodeValue)
{
DataTable dt = (DataTable)dataSource;
string parentValue = ( string )parentNodeValue;
if (string.IsNullOrEmpty(this.NodeTextColumnName) ||
string.IsNullOrEmpty(this.NodeValueColumnName) ||
string.IsNullOrEmpty(this.ParentNodeValueColumnName))
{
throw new ArgumentNullException("Missing minimal descriptor information!");
}
string whereClause = string.Empty;
if (parentValue != null)
{
string pattern = this.AddSingleQuotationOnQuery ? "[{0}]='{1}'" : "[{0}]={1}";
whereClause = string.Format(pattern, this.ParentNodeValueColumnName, parentValue);
}
else
{
whereClause = string.Format("[{0}] is NULL", this.ParentNodeValueColumnName);
}
DataRow[] drs = dt.Select(whereClause);
foreach (DataRow dr in drs)
{
//convert node
ASTreeViewNode node = new ASTreeViewNode();
node.NodeText = GetString(dr[this.NodeTextColumnName], true);
node.NodeValue = GetString(dr[this.NodeValueColumnName], true);
parentNode.AppendChild(node);
string currentNodeValue = node.NodeValue;
//call recursively
BuildTreeFromDataSource(node, dt, currentNodeValue);
}
}
/// <summary>
/// Converts the node.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
public HtmlGenericControl ConvertNode(ASTreeViewNode node)
{
#region manage li
HtmlGenericControl li = new HtmlGenericControl();
li.TagName = "li";
li.Attributes.Add("treeNodeType", ((int)node.NodeType).ToString());
#endregion
#region manage selection
li.Attributes.Add("treeNodeValue", node.NodeValue);
if (node.Selected)
{
li.Attributes.Add("selected", "true");
}
#endregion
#region manage treelines
if (this.currentTreeView.EnableTreeLines)
{
//if the current node is the last node of parent's childnodes.
if (node.ParentNode != null && node.ParentNode.ChildNodes.IndexOf(node) == (node.ParentNode.ChildNodes.Count - 1))
{
if ((this.currentTreeView.EnableRoot && node == this.currentTreeView.RootNode)
||
(!this.currentTreeView.EnableRoot &&
this.currentTreeView.RootNode.ChildNodes.Count == 1 &&
node == this.currentTreeView.RootNode.ChildNodes[0])
)
{
//if the current node is root node.
li.Attributes.Add("class", this.currentTreeView.CssClassLineRoot /* "line-root"*/);
}
else
{
li.Attributes.Add("class", this.currentTreeView.CssClassLineBottom /* "line-bottom"*/);
}
}
// if the current is the root node and has siblings.
else if (!this.currentTreeView.EnableRoot &&
this.currentTreeView.RootNode.ChildNodes.Count > 1 &&
node == this.currentTreeView.RootNode.ChildNodes[0]
)
{
li.Attributes.Add("class", this.currentTreeView.CssClassLineTop /* "line-top"*/);
}
else
{
li.Attributes.Add("class", this.currentTreeView.CssClassLineMiddle /*"line-middle"*/);
}
}
#endregion
#region manage open close
li.Attributes.Add("openState", ((int)node.OpenState).ToString());
#endregion
#region manage node icon
//set li attribute for save viewstate
if (!string.IsNullOrEmpty(node.NodeIcon))
{
li.Attributes.Add("treeNodeIcon", node.NodeIcon);
}
#endregion
#region manage context menu attributes
li.Attributes.Add("enable-edit-context-menu", node.EnableEditContextMenu ? "true" : "false");
li.Attributes.Add("enable-delete-context-menu", node.EnableDeleteContextMenu ? "true" : "false");
li.Attributes.Add("enable-add-context-menu", node.EnableAddContextMenu ? "true" : "false");
#endregion
#region manage node drag drop
if (!node.EnableDragDrop)
{
li.Attributes.Add("enable-drag-drop", "false");
}
#endregion
#region manage node siblings
if (!node.EnableSiblings)
{
li.Attributes.Add("enable-siblings", "false");
}
#endregion
#region manage node children
if (!node.EnableChildren)
{
li.Attributes.Add("enable-children", "false");
}
#endregion
#region manage enable checkbox
if (!node.EnableCheckbox)
{
li.Attributes.Add("enable-checkbox", "false");
}
#endregion
#region manage enable selection
if (!node.EnableSelection)
{
li.Attributes.Add("enable-selection", "false");
}
#endregion
#region manage enable open close
if (!node.EnableOpenClose)
{
li.Attributes.Add("enable-open-close", "false");
}
#endregion
#region manage line (not implemented)
/*
* HtmlGenericControl divLine = new HtmlGenericControl();
* divLine.TagName = "div";
* divLine.InnerHtml = " ";
* divLine.Attributes.Add( "class", "line" );
*
* //HtmlImage imgLine = new HtmlImage();
* //imgLine.Src = "javascript/astreeview/images/astreeview-vertical-line.gif";
* li.Controls.Add( divLine );
*/
#endregion
#region manage plus minus icon
HtmlImage imgPlusMinus = new HtmlImage();
imgPlusMinus.Attributes.Add("icon-type", ((int)ASTreeViewIconType.OpenClose).ToString());
imgPlusMinus.Attributes.Add("class", this.currentTreeView.CssClassPlusMinusIcon);
switch (node.OpenState)
{
case ASTreeViewNodeOpenState.Open:
imgPlusMinus.Src = this.currentTreeView.ImgMinusIcon;
break;
case ASTreeViewNodeOpenState.Close:
imgPlusMinus.Src = this.currentTreeView.ImgPlusIcon;
break;
default:
imgPlusMinus.Src = this.currentTreeView.ImgMinusIcon;
break;
}
if (node.ChildNodes.Count == 0 || !node.EnableOpenClose)
{
imgPlusMinus.Style.Add("visibility", "hidden");
}
li.Controls.Add(imgPlusMinus);
#endregion
#region manage checkbox
HtmlImage imgCheckbox = null;
if (this.currentTreeView.EnableCheckbox)
{
imgCheckbox = this.ConvertCheckbox(node);
imgCheckbox.Attributes.Add("icon-type", ((int)ASTreeViewIconType.Checkbox).ToString());
#region handle postback
if (this.currentTreeView.AutoPostBack)
{
imgCheckbox.Attributes.Add("postbackscript", this.CurrentTreeView.Page.ClientScript.GetPostBackEventReference(this.CurrentTreeView, node.NodeValue));
}
#endregion
li.Controls.Add(imgCheckbox);
#region manage checkbox for single node
if (!node.EnableCheckbox)
{
imgCheckbox.Style.Add(HtmlTextWriterStyle.Display, "none");
}
#endregion
}
li.Attributes.Add("checkedState", ((int)node.CheckedState).ToString());
#endregion
#region manage folder icon
if (this.currentTreeView.EnableNodeIcon)
{
HtmlImage imgIcon = new HtmlImage();
imgIcon.Attributes.Add("icon-type", ((int)ASTreeViewIconType.NodeIcon).ToString());
imgIcon.Attributes.Add("class", this.currentTreeView.CssClassIcon);
if (this.currentTreeView.EnableCustomizedNodeIcon && !string.IsNullOrEmpty(node.NodeIcon))
{
//if node has custom icon
imgIcon.Src = node.NodeIcon;
}
else
{
//use default icons
if (node.ChildNodes.Count > 0)
{
if (node.OpenState == ASTreeViewNodeOpenState.Open)
{
imgIcon.Src = this.currentTreeView.DefaultFolderOpenIcon;
}
else
{
imgIcon.Src = this.currentTreeView.DefaultFolderIcon;
}
}
else
{
imgIcon.Src = this.currentTreeView.DefaultNodeIcon;
}
//if node is virtual node
if (node.IsVirtualNode && node.VirtualNodesCount > 0)
{
imgIcon.Src = this.currentTreeView.DefaultFolderIcon;
}
}
//add drag & drap ability
if (this.currentTreeView.EnableDragDropOnIcon)
{
imgIcon.Attributes.Add("is-astreeview-node", "true");
}
li.Controls.Add(imgIcon);
}
#endregion
#region manage link
int counter = liCounter + 1;
if (node.NodeType == ASTreeViewNodeType.LinkButton)
{
LinkButton lb = new LinkButton();
lb.ID = "lbASTreeNode" + counter.ToString();
lb.Text = node.NodeText;
string disableClickScript = "return false;";
if (!this.currentTreeView.AutoPostBack)
{
lb.Attributes.Add("onclick", disableClickScript);
}
if (node.Selected)
{
lb.CssClass += " astreeview-node-selected";
}
if (this.currentTreeView.EnableContextMenu)
{
lb.CssClass += (" " + this.currentTreeView.ContextMenuTargetCssClass);
if (!node.EnableAddContextMenu || !this.currentTreeView.EnableContextMenuAdd)
{
lb.Attributes.Add("disable" + this.currentTreeView.ContextMenuAddCommandName, "true");
}
if (!node.EnableEditContextMenu || !this.currentTreeView.EnableContextMenuEdit)
{
lb.Attributes.Add("disable" + this.currentTreeView.ContextMenuEditCommandName, "true");
}
if (!node.EnableDeleteContextMenu || !this.currentTreeView.EnableContextMenuDelete)
{
lb.Attributes.Add("disable" + this.currentTreeView.ContextMenuDeleteCommandName, "true");
}
}
this.AddAdditionalAttributes(lb, node.AdditionalAttributes);
//add astreeviewnode tag
lb.Attributes.Add("is-astreeview-node", "true");
li.Controls.Add(lb);
}
else if (node.NodeType == ASTreeViewNodeType.HyperLink)
{
ASTreeViewLinkNode linkNode = (ASTreeViewLinkNode)node;
HyperLink hl = new HyperLink();
hl.ID = "hlASTreeNode" + counter.ToString();
hl.Text = linkNode.NodeText;
if (linkNode.Selected)
{
hl.CssClass += " astreeview-node-selected";
}
if (this.currentTreeView.EnableContextMenu)
{
hl.CssClass += (" " + this.currentTreeView.ContextMenuTargetCssClass);
if (!linkNode.EnableAddContextMenu || !this.currentTreeView.EnableContextMenuAdd)
{
hl.Attributes.Add("disable" + this.currentTreeView.ContextMenuAddCommandName, "true");
}
if (!linkNode.EnableEditContextMenu || !this.currentTreeView.EnableContextMenuEdit)
{
hl.Attributes.Add("disable" + this.currentTreeView.ContextMenuEditCommandName, "true");
}
if (!linkNode.EnableDeleteContextMenu || !this.currentTreeView.EnableContextMenuDelete)
{
hl.Attributes.Add("disable" + this.currentTreeView.ContextMenuDeleteCommandName, "true");
}
}
hl.NavigateUrl = linkNode.NavigateUrl;
hl.Target = linkNode.Target;
hl.ToolTip = linkNode.Tooltip;
this.AddAdditionalAttributes(hl, linkNode.AdditionalAttributes);
//add astreeviewnode tag
hl.Attributes.Add("is-astreeview-node", "true");
li.Controls.Add(hl);
}
else if (node.NodeType == ASTreeViewNodeType.Text)
{
ASTreeViewTextNode textNode = (ASTreeViewTextNode)node;
HtmlGenericControl div = new HtmlGenericControl("div");
div.InnerHtml = textNode.NodeText;
div.Attributes.Add("class", this.currentTreeView.CssClassTextNodeContainer /* "astreeview-text-node"*/);
div.Attributes.Add("is-astreeview-node", "true");
div.Attributes.Add("isTreeNodeChild", "true");
li.Controls.Add(div);
//for li
string strLiCss = li.Attributes["class"];
string strLiToAdd = this.currentTreeView.CssClassTextNode;
li.Attributes["class"] = string.IsNullOrEmpty(strLiToAdd) ? strLiToAdd : strLiCss + " " + strLiToAdd;
//for plus minus
string strPlusMinusCss = imgPlusMinus.Attributes["class"];
string strPlusMinusToAdd = this.currentTreeView.CssClassPlusMinusTextNode;//"astreeview-plus-minus-text";
imgPlusMinus.Attributes["class"] = string.IsNullOrEmpty(strPlusMinusCss) ? strPlusMinusToAdd : strPlusMinusCss + " " + strPlusMinusToAdd;
//for checkbox
if (imgCheckbox != null)
{
string strCheckboxCss = imgCheckbox.Attributes["class"];
string strCheckboxToAdd = this.currentTreeView.CssClassCheckboxTextNode;//"astreeview-checkbox-text";
imgCheckbox.Attributes["class"] = string.IsNullOrEmpty(strCheckboxCss) ? strCheckboxToAdd : strCheckboxCss + " " + strCheckboxToAdd;
}
}
#endregion
#region manage virtual node
if (node.IsVirtualNode)
{
li.Attributes.Add("is-virtual-node", "true");
li.Attributes.Add("virtual-nodes-count", node.VirtualNodesCount.ToString());
li.Attributes.Add("virtual-parent-key", node.VirtualParentKey);
li.Attributes["openState"] = ((int)ASTreeViewNodeOpenState.Close).ToString();
imgPlusMinus.Style["visibility"] = "visible";
imgPlusMinus.Src = this.currentTreeView.ImgPlusIcon;
HtmlGenericControl ulVirtualNodesContainer = new HtmlGenericControl("ul");
HtmlGenericControl liVirtualNodesContainer = new HtmlGenericControl("li");
HtmlGenericControl divTextContainer = new HtmlGenericControl("div");
liVirtualNodesContainer.Attributes.Add("virtial-node-placeholder-li", "true");
ulVirtualNodesContainer.Attributes.Add("virtial-node-placeholder-ul", "true");
ulVirtualNodesContainer.Controls.Add(liVirtualNodesContainer);
ulVirtualNodesContainer.Style.Add("display", "none");
divTextContainer.InnerHtml = string.Format(this.currentTreeView.VirtualNodePlaceHolderText, node.VirtualNodesCount); //"loading..." + node.VirtualNodesCount.ToString();
divTextContainer.Attributes.Add("class", "astreeview-loading-placeholder");
liVirtualNodesContainer.Controls.Add(divTextContainer);
li.Controls.Add(ulVirtualNodesContainer);
/*
* HtmlGenericControl divVirtualNodesContainer = new HtmlGenericControl( "div" );
* divVirtualNodesContainer.InnerHtml = "loading..." + node.VirtualNodesCount.ToString();
* li.Controls.Add( divVirtualNodesContainer );
*/
}
#endregion
#region manage additional attributes
if (node.AdditionalAttributes.Count > 0)
{
JsonObject joAdditionalAttr = new JsonObject();
foreach (KeyValuePair <string, string> attr in node.AdditionalAttributes)
{
if (!joAdditionalAttr.ContainsKey(attr.Key))
{
joAdditionalAttr.Add(attr.Key, attr.Value);
}
}
string attrString = string.Empty;
using (JsonWriter writer = new JsonWriter())
{
joAdditionalAttr.Write(writer);
attrString = writer.ToString();
}
li.Attributes.Add("additional-attributes", attrString);
}
#endregion
#region manage right to left render
if (this.currentTreeView.EnableRightToLeftRender)
{
//reverse child controls of li
ArrayList al = new ArrayList();
foreach (Control c in li.Controls)
{
al.Add(c);
}
while (li.Controls.Count > 0)
{
li.Controls.RemoveAt(0);
}
al.Reverse();
foreach (Control con in al)
{
li.Controls.Add(con);
}
}
#endregion
#region manage node depth
if (this.currentTreeView.EnableFixedDepthDragDrop)
{
li.Attributes.Add("tree-node-depth", node.NodeDepth.ToString());
}
#endregion
return(li);
}
/// <summary>
/// Indexes the of.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
public int IndexOf(ASTreeViewNode node)
{
return(this.childNodes.IndexOf(node));
}
/// <summary>
/// Gets the node json.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
public IJsonType GetNodeJson(ASTreeViewNode node)
{
JsonArray jaNode = new JsonArray();
JsonObject joNode = new JsonObject();
joNode.Add(this.GetObfuscatedString("node_treeNodeText"), this.currentTreeView.EnableEscapeInput ? HttpUtility.UrlEncode(node.NodeText) : node.NodeText);
joNode.Add(this.GetObfuscatedString("node_treeNodeValue"), node.NodeValue);
joNode.Add(this.GetObfuscatedString("node_checkedState"), (int)node.CheckedState);
joNode.Add(this.GetObfuscatedString("node_openState"), (int)node.OpenState);
joNode.Add(this.GetObfuscatedString("node_selected"), node.Selected);
joNode.Add(this.GetObfuscatedString("node_enableEditContextMenu"), node.EnableEditContextMenu);
joNode.Add(this.GetObfuscatedString("node_enableDeleteContextMenu"), node.EnableDeleteContextMenu);
joNode.Add(this.GetObfuscatedString("node_enableAddContextMenu"), node.EnableAddContextMenu);
joNode.Add(this.GetObfuscatedString("node_treeNodeType"), (int)node.NodeType);
joNode.Add(this.GetObfuscatedString("node_treeNodeIcon"), node.NodeIcon);
joNode.Add(this.GetObfuscatedString("node_enableDragDrop"), node.EnableDragDrop);
joNode.Add(this.GetObfuscatedString("node_enableSiblings"), node.EnableSiblings);
joNode.Add(this.GetObfuscatedString("node_enableChildren"), node.EnableChildren);
joNode.Add(this.GetObfuscatedString("node_enableCheckbox"), node.EnableCheckbox);
joNode.Add(this.GetObfuscatedString("node_enableSelection"), node.EnableSelection);
joNode.Add(this.GetObfuscatedString("node_enableOpenClose"), node.EnableOpenClose);
#region additionalAttributes
string attrString = string.Empty;
if (node.AdditionalAttributes.Count > 0)
{
JsonObject joAdditionalAttr = new JsonObject();
foreach (KeyValuePair <string, string> attr in node.AdditionalAttributes)
{
joAdditionalAttr.Add(attr.Key, attr.Value);
}
using (JsonWriter writer = new JsonWriter())
{
joAdditionalAttr.Write(writer);
attrString = writer.ToString();
}
}
joNode.Add(this.GetObfuscatedString("node_additionalAttributes"), attrString);
#endregion
joNode.Add(this.GetObfuscatedString("node_isVirtualNode"), node.IsVirtualNode);
joNode.Add(this.GetObfuscatedString("node_virtualNodesCount"), node.VirtualNodesCount);
joNode.Add(this.GetObfuscatedString("node_virtualParentKey"), node.VirtualParentKey);
joNode.Add(this.GetObfuscatedString("node_treeNodeDepth"), node.NodeDepth);
/*
*
* this.enableDragDrop = true;//
* this.enableSiblings = true;//
* this.enableChildren = true;//
*
* this.additionalAttributes = "";
*
* this.isVirtualNode = false;
* this.virtualNodesCount = 0;
* this.virtualParentKey = "";
* this.treeNodeDepth = -1;
*
*/
if (node.NodeType == ASTreeViewNodeType.HyperLink)
{
ASTreeViewLinkNode linkNode = (ASTreeViewLinkNode)node;
joNode.Add(this.GetObfuscatedString("node_href"), linkNode.NavigateUrl);
joNode.Add(this.GetObfuscatedString("node_target"), linkNode.Target);
joNode.Add(this.GetObfuscatedString("node_tooltip"), linkNode.Tooltip);
}
if (node.ChildNodes.Count == 0)
{
//handle root, speical
if (node.ParentNode == null) //handle root, speical
{
JsonArray jaRoot = new JsonArray();
jaRoot.Add(joNode);
jaRoot.Add(jaNode);
if (!this.currentTreeView.EnableRoot)
{
return(jaRoot[1]);
}
return(jaRoot);
}
return(joNode);
}
if (node.ParentNode != null) //handle root, speical
{
jaNode.Add(joNode);
}
JsonArray jaChildren = new JsonArray();
foreach (ASTreeViewNode child in node.ChildNodes)
{
jaChildren.Add(this.GetNodeJson(child));
}
foreach (IJsonType childJson in jaChildren)
{
//get the first object from child to current
if (childJson is JsonObject)
{
jaNode.Add(childJson);
}
else if (childJson is JsonArray && ((JsonArray)childJson).Count > 0)
{
jaNode.Add(((JsonArray)childJson)[0]);
((JsonArray)childJson).RemoveAt(0);
jaNode.Add(childJson);
}
}
//handle root, speical
if (node.ParentNode == null) //handle root, speical
{
JsonArray jaRoot = new JsonArray();
jaRoot.Add(joNode);
jaRoot.Add(jaNode);
if (!this.currentTreeView.EnableRoot)
{
return(jaRoot[1]);
}
return(jaRoot);
}
return(jaNode);
}
/// <summary>
/// Parses the json to node.
/// </summary>
/// <param name="joTreeNode">The jo tree node.</param>
/// <returns></returns>
public ASTreeViewNode ParseJsonToNode(JsonObject joTreeNode)
{
JsonString nodeText = (JsonString)joTreeNode[this.GetObfuscatedString("node_treeNodeText")];
JsonString nodeValue = (JsonString)joTreeNode[this.GetObfuscatedString("node_treeNodeValue")];
JsonNumber checkedState = (JsonNumber)joTreeNode[this.GetObfuscatedString("node_checkedState")];
JsonNumber openState = (JsonNumber)joTreeNode[this.GetObfuscatedString("node_openState")];
JsonBoolean selected = (JsonBoolean)joTreeNode[this.GetObfuscatedString("node_selected")];
JsonBoolean enableEditContextMenu = (JsonBoolean)joTreeNode[this.GetObfuscatedString("node_enableEditContextMenu")];
JsonBoolean enableDeleteContextMenu = (JsonBoolean)joTreeNode[this.GetObfuscatedString("node_enableDeleteContextMenu")];
JsonBoolean enableAddContextMenu = (JsonBoolean)joTreeNode[this.GetObfuscatedString("node_enableAddContextMenu")];
JsonNumber treeNodeType = (JsonNumber)joTreeNode[this.GetObfuscatedString("node_treeNodeType")];
JsonString treeNodeIcon = null;
if (joTreeNode.ContainsKey(this.GetObfuscatedString("node_treeNodeIcon")))
{
treeNodeIcon = (JsonString)joTreeNode[this.GetObfuscatedString("node_treeNodeIcon")];
}
ASTreeViewNodeType astNodeType = (ASTreeViewNodeType)((int)treeNodeType.Value);
JsonBoolean enableDragDrop = (JsonBoolean)joTreeNode[this.GetObfuscatedString("node_enableDragDrop")];
JsonBoolean enableSiblings = (JsonBoolean)joTreeNode[this.GetObfuscatedString("node_enableSiblings")];
JsonBoolean enableChildren = (JsonBoolean)joTreeNode[this.GetObfuscatedString("node_enableChildren")];
JsonBoolean enableCheckbox = (JsonBoolean)joTreeNode[this.GetObfuscatedString("node_enableCheckbox")];
JsonBoolean enableSelection = (JsonBoolean)joTreeNode[this.GetObfuscatedString("node_enableSelection")];
JsonBoolean enableOpenClose = (JsonBoolean)joTreeNode[this.GetObfuscatedString("node_enableOpenClose")];
ASTreeViewNode node;// = new ASTreeViewNode();
switch (astNodeType)
{
case ASTreeViewNodeType.LinkButton:
node = new ASTreeViewNode();
break;
case ASTreeViewNodeType.HyperLink:
node = new ASTreeViewLinkNode();
break;
case ASTreeViewNodeType.Text:
node = new ASTreeViewTextNode();
break;
default:
node = new ASTreeViewNode();
break;
}
node.NodeText = HttpUtility.UrlDecode(nodeText.Value);
node.NodeValue = HttpUtility.UrlDecode(nodeValue.Value);
node.CheckedState = (ASTreeViewCheckboxState)((int)checkedState.Value);
node.OpenState = (ASTreeViewNodeOpenState)((int)openState.Value);
node.Selected = selected.Value;
node.EnableEditContextMenu = enableEditContextMenu.Value;
node.EnableDeleteContextMenu = enableDeleteContextMenu.Value;
node.EnableAddContextMenu = enableAddContextMenu.Value;
node.EnableDragDrop = enableDragDrop.Value;
node.EnableSiblings = enableSiblings.Value;
node.EnableChildren = enableChildren.Value;
node.EnableCheckbox = enableCheckbox.Value;
node.EnableSelection = enableSelection.Value;
node.EnableOpenClose = enableOpenClose.Value;
#region handle tree node depth
if (this.currentTreeView.EnableFixedDepthDragDrop)
{
JsonNumber treeNodeDepth = null;
if (joTreeNode.ContainsKey(this.GetObfuscatedString("node_treeNodeDepth")))
{
treeNodeDepth = (JsonNumber)joTreeNode[this.GetObfuscatedString("node_treeNodeDepth")];
node.NodeDepth = (int)treeNodeDepth.Value;
}
}
#endregion
#region handle virtual node
JsonBoolean isVirtualNode = null;
if (joTreeNode.ContainsKey(this.GetObfuscatedString("node_isVirtualNode")))
{
isVirtualNode = (JsonBoolean)joTreeNode[this.GetObfuscatedString("node_isVirtualNode")];
node.IsVirtualNode = isVirtualNode.Value;
}
JsonNumber virtualNodesCount = null;
if (joTreeNode.ContainsKey(this.GetObfuscatedString("node_virtualNodesCount")))
{
virtualNodesCount = (JsonNumber)joTreeNode[this.GetObfuscatedString("node_virtualNodesCount")];
node.VirtualNodesCount = (int)virtualNodesCount.Value;
}
JsonString virtualParentKey = null;
if (joTreeNode.ContainsKey(this.GetObfuscatedString("node_virtualParentKey")))
{
virtualParentKey = (JsonString)joTreeNode[this.GetObfuscatedString("node_virtualParentKey")];
node.VirtualParentKey = virtualParentKey.Value;
}
JsonString jsAttr = null;
if (joTreeNode.ContainsKey(this.GetObfuscatedString("node_additionalAttributes")))
{
jsAttr = (JsonString)joTreeNode[this.GetObfuscatedString("node_additionalAttributes")];
string attrString = jsAttr.Value;
if (!string.IsNullOrEmpty(attrString))
{
try
{
StringReader rdr = new StringReader(attrString);
JsonParser parser = new JsonParser(rdr, true);
JsonObject jo = (JsonObject)parser.ParseObject();
List <KeyValuePair <string, string> > additionalAttributes = new List <KeyValuePair <string, string> >();
foreach (string key in jo.Keys)
{
additionalAttributes.Add(new KeyValuePair <string, string>(key, ((JsonString)jo[key]).Value));
}
node.AdditionalAttributes = additionalAttributes;
}
catch { }
}
}
#endregion
//handle hyperlink
if (astNodeType == ASTreeViewNodeType.HyperLink)
{
ASTreeViewLinkNode hlNode = (ASTreeViewLinkNode)node;
JsonString href = (JsonString)joTreeNode[this.GetObfuscatedString("node_href")];
JsonString target = (JsonString)joTreeNode[this.GetObfuscatedString("node_target")];
JsonString tooltip = (JsonString)joTreeNode[this.GetObfuscatedString("node_tooltip")];
hlNode.NavigateUrl = href.Value;
hlNode.Target = target.Value;
hlNode.Tooltip = tooltip.Value;
}
if (treeNodeIcon != null)
{
node.NodeIcon = treeNodeIcon.Value;
}
return(node);
}
/// <summary>
/// Determines whether [contains] [the specified node].
/// </summary>
/// <param name="node">The node.</param>
/// <returns>
/// <c>true</c> if [contains] [the specified node]; otherwise, <c>false</c>.
/// </returns>
public bool Contains(ASTreeViewNode node)
{
return(this.childNodes.Contains(node));
}
/// <summary> /// Builds the tree from data source. /// </summary> /// <param name="parentNode">The parent node.</param> /// <param name="dataSource">The data source.</param> /// <param name="parentNodeValue">The parent node value.</param> public abstract void BuildTreeFromDataSource(ASTreeViewNode parentNode, object dataSource, object parentNodeValue);
/// <summary>
/// Sets the parent.
/// </summary>
/// <param name="parent">The parent.</param>
protected void SetParent(ASTreeViewNode parent)
{
this.parentNode = parent;
}
/// <summary>
/// Converts the XML node to tree node.
/// </summary>
/// <param name="node">The node.</param>
/// <returns></returns>
private ASTreeViewNode ConvertXmlNodeToTreeNode(XmlNode node)
{
ASTreeViewNode treeNode = new ASTreeViewNode();
ASTreeViewNodeType nodeType = (ASTreeViewNodeType)int.Parse(node.Attributes["node-type"].Value);
//handle linkbutton
if (nodeType == ASTreeViewNodeType.HyperLink)
{
ASTreeViewLinkNode treeLinkNode = new ASTreeViewLinkNode();
if (node.Attributes["navigate-url"].Value != null)
{
treeLinkNode.NavigateUrl = node.Attributes["navigate-url"].Value;
}
if (node.Attributes["target"].Value != null)
{
treeLinkNode.Target = node.Attributes["target"].Value;
}
if (node.Attributes["tooltip"].Value != null)
{
treeLinkNode.Tooltip = node.Attributes["tooltip"].Value;
}
treeNode = treeLinkNode;
}
treeNode.NodeText = node.Attributes["node-text"].Value;
treeNode.NodeValue = node.Attributes["node-value"].Value;
if (node.Attributes["checked-state"].Value != null)
{
treeNode.CheckedState = (ASTreeViewCheckboxState)int.Parse(node.Attributes["checked-state"].Value);
}
if (node.Attributes["open-state"].Value != null)
{
treeNode.OpenState = (ASTreeViewNodeOpenState)int.Parse(node.Attributes["open-state"].Value);
}
if (node.Attributes["selected"].Value != null)
{
treeNode.Selected = bool.Parse(node.Attributes["selected"].Value);
}
if (node.Attributes["enable-edit-context-menu"].Value != null)
{
treeNode.EnableEditContextMenu = bool.Parse(node.Attributes["enable-edit-context-menu"].Value);
}
if (node.Attributes["enable-delete-context-menu"].Value != null)
{
treeNode.EnableDeleteContextMenu = bool.Parse(node.Attributes["enable-delete-context-menu"].Value);
}
if (node.Attributes["enable-add-context-menu"] != null)
{
treeNode.EnableAddContextMenu = bool.Parse(node.Attributes["enable-add-context-menu"].Value);
}
if (node.Attributes["node-icon"].Value != null)
{
treeNode.NodeIcon = node.Attributes["node-icon"].Value;
}
if (node.Attributes["enable-drag-drop"] != null)
{
treeNode.EnableDragDrop = bool.Parse(node.Attributes["enable-drag-drop"].Value);
}
if (node.Attributes["enable-siblings"] != null)
{
treeNode.EnableSiblings = bool.Parse(node.Attributes["enable-siblings"].Value);
}
if (node.Attributes["enable-children"] != null)
{
treeNode.EnableChildren = bool.Parse(node.Attributes["enable-children"].Value);
}
if (node.Attributes["enable-checkbox"] != null)
{
treeNode.EnableCheckbox = bool.Parse(node.Attributes["enable-checkbox"].Value);
}
if (node.Attributes["enable-selection"] != null)
{
treeNode.EnableSelection = bool.Parse(node.Attributes["enable-selection"].Value);
}
if (node.Attributes["enable-open-close"] != null)
{
treeNode.EnableOpenClose = bool.Parse(node.Attributes["enable-open-close"].Value);
}
return(treeNode);
}
