How do I copy tree view item to datagridview in C#

Question

1.00/5 (1 vote)

See more:

I have a treeview with select and deselect checkboxes in a form1. If I have to click on a folder in a treeview, it should copy and display into the datagridview with the columns like Name of the folder, total copied files and status(complete or incomplete) which is in form2. how to do it? that copied files should be in treeview form in a datagridview.

What I have tried:

C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace TreeViewItems_to_ListViewItem
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        public bool Checked { get; set; }
        public TreeNode SelectedNode { get; set; }
        public string FullPath { get; set; }

        private void Form1_Load(object sender, EventArgs e)
        {
            treeView1.CheckBoxes = true;
            

            foreach (TreeNode node in treeView1.Nodes)
            {
                node.Checked = true;
            }
            
            string[] drives = Environment.GetLogicalDrives();
           
            foreach (string drive in drives)
            {
               // treeView1.Nodes[0].Nodes[1].Checked = true;
                DriveInfo di = new DriveInfo(drive);
                int driveImage;

                switch (di.DriveType)   
                {
                    case DriveType.CDRom:
                        driveImage = 3;
                        break;
                    case DriveType.Network:
                        driveImage = 6;
                        break;
                    case DriveType.NoRootDirectory:
                        driveImage = 8;
                        break;
                    case DriveType.Unknown:
                        driveImage = 8;
                        break;
                    default:
                        driveImage = 2;
                        break;
                }

                TreeNode node = new TreeNode(drive.Substring(0, 1), driveImage, driveImage);
                node.Tag = drive;


                if (di.IsReady == true)
                    node.Nodes.Add("...");

                treeView1.Nodes.Add(node);                
            }

            foreach (TreeNode node in treeView1.Nodes)
            {
                node.Checked = true;
            }
        }

        private void treeView1_AfterCheck(object sender, TreeViewEventArgs e)
        {
            button1.Enabled = false;
            TreeNode node = e.Node;
            bool is_checked = node.Checked;
            foreach (TreeNode childNode in e.Node.Nodes)
            {
                childNode.Checked = e.Node.Checked;
            }
            treeView1.SelectedNode = node;

            //TreeNode node = e.Node;
            //bool is_checked = node.Checked;
            //foreach (TreeNode child in node.Nodes)
            //{
            //    child.Checked = is_checked;
            //}
            //treeView1.SelectedNode = node;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            foreach (TreeNode node in treeView1.Nodes)
            {
                node.Checked = true;
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            foreach (TreeNode node in treeView1.Nodes)
            {
                node.Checked = false;
                button1.Enabled = true;
            }
        }

        private void treeView1_BeforeExpand(object sender, TreeViewCancelEventArgs e)
        {
            if (e.Node.Nodes.Count > 0)
            {
                if (e.Node.Nodes[0].Text == "..." && e.Node.Nodes[0].Tag == null)
                {
                    e.Node.Nodes.Clear();


                    string[] dirs = Directory.GetDirectories(e.Node.Tag.ToString());

                    foreach (string dir in dirs)
                    {
                        DirectoryInfo di = new DirectoryInfo(dir);
                        TreeNode node = new TreeNode(di.Name, 0, 1) { Checked = true };

                        try
                        {
                            node.Tag = dir;


                            if (di.GetDirectories().Count() > 0)
                                node.Nodes.Add(null, "...", 0, 0).Checked = node.Checked;
                        }
                        catch (UnauthorizedAccessException)
                        {
                            node.ImageIndex = 12;
                            node.SelectedImageIndex = 12;
                        }
                        catch (Exception ex)
                        {
                            MessageBox.Show(ex.Message, "DirectoryLister", MessageBoxButtons.OK,
                            MessageBoxIcon.Error);
                        }
                        finally
                        {
                            node.Checked = e.Node.Checked;
                            e.Node.Nodes.Add(node);
                        }
                    }
                }
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {

            listView1.Items.Clear();
            treeView1.PathSeparator = ".";                
           // listView1.Items.Clear();
            int myNodeCount = treeView1.SelectedNode.GetNodeCount(true);
            decimal myChildPercentage = ((decimal)myNodeCount /
            (decimal)treeView1.GetNodeCount(true)) * 100;

            MessageBox.Show("The '" + treeView1.SelectedNode.FullPath + "' node has \n"
                                    + myNodeCount.ToString() + " Total items copied.\n ");
                                    //+ string.Format("{0:###.##}", myChildPercentage)
                                    //+ "% of the total tree nodes in the tree view control.");
            foreach (TreeNode node in treeView1.SelectedNode.Nodes)
            {
             //   treeView1.SelectedNode = treeView1.Nodes[0].Nodes[0].Nodes[0];
               // listView1.Items.Add(treeView1.SelectedNode.Text);
                
                listView1.Items.Add(treeView1.SelectedNode.Tag.ToString());
               
            }

           
        }

        private void button4_Click(object sender, TreeViewEventArgs e)
        {
            Application.Exit();
        }

        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {

            treeView1.Text = treeView1.SelectedNode.Tag.ToString();
            //listView1.Items.Add(treeView1.SelectedNode.Text);
            
        }

        private void button5_Click(object sender, EventArgs e)
        {
            listView1.Items.Clear();
        }

        private void treeView1_BeforeSelect(object sender, TreeViewCancelEventArgs e)
        {
           
        }

        private void button4_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }
    }
}

Posted 18-Apr-16 20:46pm

Santosh Kokatnur

Updated 18-Apr-16 21:46pm

lukeer

v3

Add a Solution

Comments

Shambhoo kumar 19-Apr-16 2:52am

If you think, people write all code for you then you are in wrong place. please try your self and display you code in question section and ask which line of code you getting stuck. please come up with your code, then we'll happy to help you.

Santosh Kokatnur 19-Apr-16 2:54am

Bro, I have written a code... I will update!

lukeer 19-Apr-16 3:13am

When posting code, wrap it in tags (already done this time) like these:
<pre lang="c#">YourCodeHere();</pre>
It makes code much more readable and therefore improves your chances to get an answer.
However, your code snippet is very long. I doubt anyone will read it all. Folks around here like to focus on something specific that doesn't work the way it should instead of telling you how to correctly re-organize your code base.

Santosh Kokatnur 19-Apr-16 3:43am

Okay, Sir...

Shambhoo kumar 19-Apr-16 3:14am

Dear i don't know which line you are getting stuck but check below code for counting checked file

void LookupChecks(TreeNodeCollection nodes, List<TreeNode> list)
{
foreach (TreeNode node in nodes)
{
if (node.Checked)
list.Add(node);

LookupChecks(node.Nodes, list);
}
}

Usage

var list = new List<TreeNode>();
LookupChecks(TreeView.Nodes, list);

Santosh Kokatnur 19-Apr-16 3:19am

Bro, the matter is datagridview is another form. but here i took listview.
Now, the problem is It only displaying the folder not a subfolders.

Santosh Kokatnur 19-Apr-16 3:19am

And i want to display treeview items to datagridview in next form.

Shambhoo kumar 19-Apr-16 3:30am

First of all you count your all file and add it in string list and on submit button click you pass that list to other form. In second form you need to define

public List<string> selectedFile;

and just assign your variable value on button submit, And on Form_Load event you need to add file in DataGrid according to selectedFile variable value.

Santosh Kokatnur 19-Apr-16 3:31am

Can you provide me a code? I am newbie to c# lang

phil.o 19-Apr-16 3:42am

I have the screws, wheels, motor, and all that stuff. Now, how can I build a car?
This is mostly what your question would look like if it were applied to mechanics instead of computers. It is too vague to be answered in a Quick-Answers forum.

Santosh Kokatnur 19-Apr-16 3:45am

hehehe nice! I am newbie to c#. So, I have updated my full code.

lukeer 19-Apr-16 4:03am

I don't yet get what you mean by "TreeView form in a DataGridView". Do you want
(1) a TreeView control within a DataGridView Control?
Or do you want to use several DataGridView cells to act as if they would display a tree?

Santosh Kokatnur 19-Apr-16 4:09am

Sir, how to upload jpeg image in this post? i will show how it exactly works..

lukeer 20-Apr-16 6:01am

Sorry, I don't know.

Santosh Kokatnur 19-Apr-16 4:12am

1) Treeview items are in Form1 and i want to display it in datagridview which is in second form. and In Datagridview the selected folders and subfolder will be display in treeview structure!

lukeer 20-Apr-16 6:01am

So is there a second TreeView control embedded within the DataGridView control or not?

Santosh Kokatnur 21-Apr-16 5:30am

Host TreeView in Windows Forms DataGridView Cells

lukeer 21-Apr-16 6:38am

I take that as a "Yes".
So where is the problem in copying the TreeNodes of one TreeView to the other?

Santosh Kokatnur 21-Apr-16 7:09am

on click of a button1, it should select parent node but, not copying child nodes

lukeer 21-Apr-16 7:27am

You have to copy the nodes in ordert to have something to select.

Santosh Kokatnur 21-Apr-16 7:11am

Button1 that will copy all the treeview items to listview/datagridview

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Shambhoo kumar · Accepted Answer · 2016-04-18T21:46:00

It's not all code but may be help you.

C#

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        private void btnSubmit_Click(object sender, EventArgs e)
        {
           var list = new List<treenode>();
           list =  LookupChecks(TreeView.Nodes, list);
           
           Form2 objForm2 = new Form();
           objForm2.SelectedFile=list;
           objForm2.Show();
        }

        List<treenode> LookupChecks(TreeNodeCollection nodes, List<treenode> list)
        {
           foreach (TreeNode node in nodes)
           {
             if (node.Checked)
             list.Add(node);

             LookupChecks(node.Nodes, list);
           }
           return list;
        }


       public partial class Form2 : Form
       {
        public Form2()
        {
            InitializeComponent();
        }
        var SelectedFile = new List<treenode>();

        private void Form2_Load(object sender, EventArgs e)
        {
           if(SelectedFile.count>0)
            {
               //Write your logic here for showing data in GridView.
            }
        }