/// <summary>
/// Adds an item in the collection and in the TreeListView
/// </summary>
/// <param name="item"></param>
/// <returns>Index of the item in the collection</returns>
public virtual int Add(TreeListViewItem item)
{
if (TreeListView != null)
{
if (TreeListView.InvokeRequired)
{
throw(new Exception("Invoke required"));
}
}
// Do not add the item if the collection owns a TreeListView recursively
// and the item already owns a TreeListView
if (TreeListView != null && item.ListView != null)
{
throw(new Exception("The Item is already in a TreeListView"));
}
int index = GetInsertCollectionIndex(item);
if (index == -1)
{
return(-1);
}
if (Parent != null)
{
item.SetParent(Parent);
}
item.Items.Comparer = this.Comparer;
int treelistviewindex = GetInsertTreeListViewIndex(item, index);
// Insert in the ListView
if (treelistviewindex > -1)
{
ListView listview = (ListView)TreeListView;
listview.Items.Insert(treelistviewindex, (ListViewItem)item);
if (item.IsExpanded)
{
item.Expand();
}
item.SetIndentation();
}
// Insert in this collection
if (index > -1)
{
List.Insert(index, item);
}
if (index > -1)
{
OnItemAdded(new TreeListViewEventArgs(item, TreeListViewAction.Unknown));
}
if (Count == 1 && TreeListView != null && Parent != null)
{
if (Parent.Visible)
{
Parent.Redraw();
}
}
return(index);
}
/// <summary>
/// Adds an item in the collection and in the TreeListView
/// </summary>
/// <param name="item"></param>
/// <returns>Index of the item in the collection</returns>
public virtual int Add(TreeListViewItem item)
{
if(TreeListView != null)
if(TreeListView.InvokeRequired)
throw(new Exception("Invoke required"));
// Do not add the item if the collection owns a TreeListView recursively
// and the item already owns a TreeListView
if(TreeListView != null && item.ListView != null)
throw(new Exception("The Item is already in a TreeListView"));
int index = GetInsertCollectionIndex(item);
if(index == -1) return(-1);
if(Parent != null) item.SetParent(Parent);
item.Items.Comparer = this.Comparer;
int treelistviewindex = GetInsertTreeListViewIndex(item, index);
// Insert in the ListView
if(treelistviewindex > -1)
{
ListView listview = (ListView) TreeListView;
listview.Items.Insert(treelistviewindex, (ListViewItem) item);
if(item.IsExpanded) item.Expand();
item.SetIndentation();
}
// Insert in this collection
if(index > -1) List.Insert(index, item);
if(index > -1) OnItemAdded(new TreeListViewEventArgs(item, TreeListViewAction.Unknown));
if(Count == 1 && TreeListView != null && Parent != null)
if(Parent.Visible) Parent.Redraw();
return(index);
}
internal void ExpandInternal()
{
if (IsInATreeListView)
{
if (ListView.InvokeRequired)
{
throw(new Exception("Invoke Required"));
}
}
TreeListViewItem selItem = null;
if (TreeListView != null)
{
selItem = TreeListView.FocusedItem;
}
// Must set ListView.checkDirection to CheckDirection.None.
// Forbid recursively checking.
CheckDirection oldDirection = CheckDirection.All;
if (ListView != null)
{
oldDirection = ListView._checkDirection;
ListView._checkDirection = CheckDirection.None;
}
// The item wasn't expanded -> raise an event
if (Visible && !_isexpanded && ListView != null)
{
TreeListViewCancelEventArgs e = new TreeListViewCancelEventArgs(
this, TreeListViewAction.Expand);
ListView.RaiseBeforeExpand(e);
if (e.Cancel)
{
return;
}
}
if (Visible)
{
for (int i = Items.Count - 1; i >= 0; i--)
{
TreeListViewItem item = this.Items[i];
if (!item.Visible)
{
ListView LView = this.ListView;
LView.Items.Insert(
this.Index + 1, item);
item.SetIndentation();
}
if (item.IsExpanded)
{
item.Expand();
}
}
}
// The item wasn't expanded -> raise an event
if (Visible && !_isexpanded && IsInATreeListView)
{
this._isexpanded = true;
TreeListViewEventArgs e = new TreeListViewEventArgs(
this, TreeListViewAction.Expand);
ListView.RaiseAfterExpand(e);
if (AfterExpand != null)
{
AfterExpand(this);
}
}
this._isexpanded = true;
// Reset ListView.checkDirection
if (IsInATreeListView)
{
ListView._checkDirection = oldDirection;
}
if (TreeListView != null && selItem != null)
{
if (selItem.Visible)
{
selItem.Focused = true;
}
}
}
private void SetStateByHiddenCol(TreeListViewItem node)
{
bool Checked = Apq.Convert.ChangeType<bool>(node.SubItems[node.ListView.Columns.Count + 1].Text);
bool Expanded = Apq.Convert.ChangeType<bool>(node.SubItems[node.ListView.Columns.Count + 2].Text);
bool Selected = Apq.Convert.ChangeType<bool>(node.SubItems[node.ListView.Columns.Count + 3].Text);
node.Checked = Checked;
if (Expanded) node.Expand();
if (Selected) node.Selected = true;
foreach (TreeListViewItem tln in node.Items)
{
SetStateByHiddenCol(tln);
}
}
/// <summary>m
/// 构造树根节点
/// </summary>
/// <param name="tree"></param>
/// <param name="p_productId"></param>
private void treeRootCreate(TreeListView tree, string p_productId,string name)
{
TreeListViewItem root = new TreeListViewItem(name, 0);
root.Expand();
tree.Items.Add(root);
treeChildCreate(root, p_productId);
// this.list_productTreeStruct;
}
/// <summary>
/// 初始化树列表根节点
/// </summary>
private void list_productTreeStruct_init()
{
TreeListViewItem root = new TreeListViewItem(this.m_product.PRODUCTNO, 0);
root.Expand(); root.SubItems.Add(this.m_product.VERSION);
this.list_productTreeStruct.Items.Add(root);
treeCreater(root, this.m_product.PRODUCTID);
}
/// <summary>
/// 查询按钮操作
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void bt_StructSearch_Click(object sender, EventArgs e)
{
//1.清空列表显示
this.list_productTreeStruct.Items.Clear();
//2.判断查询条件是否为空（为空显示完整的产品结构树，否则显示符合条件的产品结构）
if (this.tb_structProValue.Text.Trim() == "")
{
list_productTreeStruct_init();
}
else
{
TreeListViewItem root = new TreeListViewItem(this.m_product.PRODUCTNO, 0);
root.Expand(); root.SubItems.Add(this.m_product.VERSION);
this.list_productTreeStruct.Items.Add(root);
string id = treeCreaterSearch(root, this.m_product.PRODUCTID);
treeCreater(root, id);
}
}
