C# Add, Edit, Remove TreeView Node

How To Insert Update Delete Selected Node From TreeView Using C#

In this C# 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 In CSharp Programming Language And Visual  Studio Editor.

Project Source Code:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace WindowsFormsApplication1

{

    public partial class TreeView_Add_Edit_Delete_Node : Form

    {

        public TreeView_Add_Edit_Delete_Node()

        {

            InitializeComponent();

        }

        // add

        private void button1_Click(object sender, EventArgs e)

        {

            TreeNode node = new TreeNode(textBox1.Text);

            try

            {

                treeView1.SelectedNode.Nodes.Add(node);

            }

            catch (Exception ex)

            {

                treeView1.Nodes.Add(node);

            }

        }

      // edit

        private void button2_Click(object sender, EventArgs e)

        {

            treeView1.SelectedNode.Text = textBox1.Text;

        }

       // get selected node

        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)

        {

            textBox1.Text = treeView1.SelectedNode.Text;

        }

        // delete selected node

        private void button3_Click(object sender, EventArgs e)

        {

            treeView1.SelectedNode.Remove();

        }

    }

}

OutPut:

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