TreeNode.Remove 方法
定义
重要
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从树视图控件中移除当前树节点。
public:
void Remove();public void Remove ();member this.Remove : unit -> unitPublic Sub Remove ()示例
下面的代码示例删除 TreeNode 用户右键单击鼠标上方的鼠标，并在用户单击鼠标滚轮时将其从展开切换为折叠。 此示例要求你具有FormTreeView控件。 应 TreeView 具有两个或多个根树节点，每个节点至少有一个子节点。
private:
void treeView1_MouseDown( Object^ /*sender*/, MouseEventArgs^ e )
{
switch ( e->Button )
{
// Remove the TreeNode under the mouse cursor
// if the right mouse button was clicked.
case ::MouseButtons::Right:
treeView1->GetNodeAt( e->X, e->Y )->Remove();
break;
// Toggle the TreeNode under the mouse cursor
// if the middle mouse button (mouse wheel) was clicked.
case ::MouseButtons::Middle:
treeView1->GetNodeAt( e->X, e->Y )->Toggle();
break;
}
}
private void treeView1_MouseDown(object sender, MouseEventArgs e)
{
switch(e.Button)
{
// Remove the TreeNode under the mouse cursor
// if the right mouse button was clicked.
case MouseButtons.Right:
treeView1.GetNodeAt(e.X, e.Y).Remove();
break;
// Toggle the TreeNode under the mouse cursor
// if the middle mouse button (mouse wheel) was clicked.
case MouseButtons.Middle:
treeView1.GetNodeAt(e.X, e.Y).Toggle();
break;
}
}
Private Sub treeView1_MouseDown(sender As Object, _
e As MouseEventArgs) Handles treeView1.MouseDown
Select Case e.Button
' Remove the TreeNode under the mouse cursor
' if the right mouse button was clicked.
Case MouseButtons.Right
treeView1.GetNodeAt(e.X, e.Y).Remove()
' Toggle the TreeNode under the mouse cursor
' if the middle mouse button (mouse wheel) was clicked.
Case MouseButtons.Middle
treeView1.GetNodeAt(e.X, e.Y).Toggle()
End Select
End Sub
注解
When the Remove method is called, the tree node, and any child tree nodes that are assigned to the TreeNode, are removed from the TreeView. 已删除的子节点将从此树节点中删除， TreeView 但仍附加到此树节点。