/// <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>
/// 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);
}
