How To Insert Update Delete Selected Node From TreeView In Visual Basic .Net
In this VB.NET Tutorial we will see How To Add Edit Remove The Selected TreeView Node Using TextBox Value On treeView AfterSelect To Get The Selected Node And 3 Button To Do The Insert, Update, Delete Using Visual Basic.Net Programming Language And Visual Studio Editor.
Project Source Code:
Public Class Add_Delete_Edit_TreeView_Node
' button add node
Private Sub ButtonAddNode_Click(sender As Object, e As EventArgs) Handles ButtonAddNode.Click
Dim node As New TreeNode(TextBox1.Text)
TreeView1.Nodes.Add(node)
End Sub
' button add child node
Private Sub ButtonAddChild_Click(sender As Object, e As EventArgs) Handles ButtonAddChild.Click
' if a node is selected
If Not (TreeView1.SelectedNode Is Nothing) Then
Dim node As New TreeNode(TextBox1.Text)
TreeView1.SelectedNode.Nodes.Add(node)
End If
End Sub
' button delete selected node
Private Sub ButtonDelete_Click(sender As Object, e As EventArgs) Handles ButtonDelete.Click
If Not (TreeView1.SelectedNode Is Nothing) Then
TreeView1.SelectedNode.Remove()
End If
End Sub
' button get selected node text into textbox
Private Sub TreeView1_AfterSelect(sender As Object, e As TreeViewEventArgs) Handles TreeView1.AfterSelect
TextBox1.Text = TreeView1.SelectedNode.Text
End Sub
' button edit selected node
Private Sub ButtonEdit_Click(sender As Object, e As EventArgs) Handles ButtonEdit.Click
TreeView1.SelectedNode.Text = TextBox1.Text
End Sub
End Class
OutPut:
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