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C#: How to Drag n Drop

Hi
I'm trying to work out how to do drag and drop on a form
I've worked out how to get the path of folder dragged from explorer into a text box

I now need to drag between ListViews and from Explorer

My form has 4 elements

1 Text box => FolderTxtBox
2 ListViews => MoviesLV & ImagesLV (AllowDrop = True)
1 Button => Rename (Code not yet implemented)

Basic Flow

On Dragging a folder from Explorer onto FolderTxtBox a list of movies and matching jpg's is shown in MoviesLV and any jpg's not used are shown in ImagesLV

I want to be able to drag a jpg from ImagesLV in to the Image Name column of MoviesLV
or
If this doesn't exist from Explorer

The Code bellow is based on this example

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;
using System.Windows;
using System.IO;
using System.Collections;

namespace DragDropLV
{
    public partial class Form1 : Form
    {
        new HashSet<String> JpgFileEntries = new HashSet<String>();
        bool Mlv_mdown = false;
        bool Jlv_mdown = false;
        public Form1()
        {
            // link https://www.c-sharpcorner.com/article/imlememnting-drag-and-drop-in-listview-controls/

            InitializeComponent();
            // Set up the List View
            MoviesLV.View = View.Details;
            MoviesLV.Columns.Add("Video Name", 100, HorizontalAlignment.Left);
            MoviesLV.Columns.Add("Image Name", 100, HorizontalAlignment.Left);

            ImagesLV.View = View.Details;
            ImagesLV.Columns.Add("Image Name", 100, HorizontalAlignment.Left);
            ImagesLV.Columns.Add("Last Modified", 100, HorizontalAlignment.Left);


        }

        private void Form1_Load(object sender, EventArgs e)
        {

            // Set up Drag N Drop
            // To get the text box working code needed to be here

            FolderTxtBox.AllowDrop = true;
            FolderTxtBox.DragEnter += new DragEventHandler(FolderTxtBox_DragEnter);
            FolderTxtBox.DragDrop += new DragEventHandler(FolderTxtBox_DragDrop);

            MoviesLV.DragEnter += new DragEventHandler(MoviesLV_DragEnter);
            MoviesLV.DragDrop += new DragEventHandler(MoviesLV_DragDrop);

            ImagesLV.DragEnter += new DragEventHandler(ImagesLV_DragEnter);
            ImagesLV.DragDrop += new DragEventHandler(ImagesLV_DragDrop);

        }




        private void Load_ListViews(string DirPath)
        {
            if (Directory.Exists(DirPath) )
            {
                
                var mFiles = Directory.EnumerateFiles(DirPath, "*", SearchOption.TopDirectoryOnly).Where(s => s.EndsWith(".mp4") || s.EndsWith(".mkv") || s.EndsWith(".avi")); ;
                foreach (string mFile in mFiles)
                {
                    FileInfo FI = new FileInfo(mFile);
                    string fName = FI.Name;
                    string jFile = Path.ChangeExtension(mFile, "jpg");
                    ListViewItem item = new ListViewItem();
                    item.Text = fName;
                    if (File.Exists(jFile))
                    {
                        FileInfo JI = new FileInfo(jFile);
                        string jName = JI.Name;
                        item.SubItems.Add(jName);
                        JpgFileEntries.Add(JI.FullName);

                    }

                    //  To Do  Best guess for other jpg's using RegEx
                    MoviesLV.Items.Add(item);
                }

                // What's left needs manual choice
                var jpgFiles = Directory.EnumerateFiles(DirPath, "*", SearchOption.TopDirectoryOnly).Where(s => s.EndsWith(".jpg") || s.EndsWith(".jpeg"));
                foreach (string jpgFile in jpgFiles)
                {
                    FileInfo JI = new FileInfo(jpgFile);
                    string jName = JI.Name;

                    if (JpgFileEntries.Add(jpgFile)) 
                    {
                        ListViewItem item = new ListViewItem();
                        item.Text = jName;
                        item.SubItems.Add(JI.LastAccessTime.ToShortDateString());
                        ImagesLV.Items.Add(item);
                    }
                }
            }
        }

        private void FolderTxtBox_DragDrop(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(DataFormats.FileDrop))
            {
                string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);

                if (Directory.Exists(files[0]))
                {
                    this.FolderTxtBox.Text = files[0];
                    Load_ListViews(FolderTxtBox.Text);
                }
            }
        }

        private void FolderTxtBox_DragEnter(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(DataFormats.FileDrop))
            {
                e.Effect = DragDropEffects.Copy;
            }
            else
            {
                e.Effect = DragDropEffects.None;
            }
        }
        private void MoviesLV_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)
        {
            string textBox1 = e.Data.GetData(DataFormats.Text).ToString();
            string[] items = textBox1.Split(',');
            MoviesLV.Items.Add(new ListViewItem(items, 0));
            Mlv_mdown = false;
            Jlv_mdown = false;
        }

        private void MoviesLV_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)
        {
            if (e.Data.GetDataPresent(DataFormats.Text))
                e.Effect = DragDropEffects.Copy;
            else
                e.Effect = DragDropEffects.None;
        }
        private void MoviesLV_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            if (!Mlv_mdown) return;
            if (e.Button == MouseButtons.Right) return;
            string str = GetItemText(MoviesLV);
            if (str == "") return;
            MoviesLV.DoDragDrop(str, DragDropEffects.Copy | DragDropEffects.Move);
        }
        private void MoviesLV_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            Mlv_mdown = true;
        }


        private void ImagesLV_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)
        {
            if (e.Data.GetDataPresent(DataFormats.Text))
                e.Effect = DragDropEffects.Copy;
            else
                e.Effect = DragDropEffects.None;
        }

        private void ImagesLV_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)
        {
            string textBox1 = e.Data.GetData(DataFormats.Text).ToString();
            string[] items = textBox1.Split(',');
            ImagesLV.Items.Add(new ListViewItem(items, 0));
            Jlv_mdown = false;
            Mlv_mdown = false;
        }
        private void ImagesLV_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            if (!Jlv_mdown) return;
            if (e.Button == MouseButtons.Right) return;
            string str = GetItemText(ImagesLV);
            if (str == "") return;
            ImagesLV.DoDragDrop(str, DragDropEffects.Copy | DragDropEffects.Move);
        }
        private void ImagesLV_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            Jlv_mdown = true;
        }

        public string GetItemText(ListView LVIEW)
        {
            int nTotalSelected = LVIEW.SelectedIndices.Count;
            if (nTotalSelected <= 0) return "";
            IEnumerator selCol = LVIEW.SelectedItems.GetEnumerator();
            selCol.MoveNext();
            ListViewItem lvi = (ListViewItem)selCol.Current;
            string mDir = "";
            for (int i = 0; i < lvi.SubItems.Count; i++)
                mDir += lvi.SubItems[i].Text + ",";
            mDir = mDir.Substring(0, mDir.Length - 1);
            return mDir;
        }
    }
}

Open in new window

it_saige

Like this:

Form1.cs -

using System;
using System.Linq;
using System.Windows.Forms;

namespace EE_Q29149321
{
    public partial class Form1 : Form
    {
        bool isImagesMouseDown;
        bool isMoviesMouseDown;

        public Form1()
        {
            InitializeComponent();
        }

        private void OnLoad(object sender, EventArgs e)
        {
            AllowDrop = lvMovies.AllowDrop = lvImages.AllowDrop = true;
            lvMovies.View = lvImages.View = View.Details;
            lvMovies.FullRowSelect = lvImages.FullRowSelect = true;
            lvMovies.MultiSelect = true;
            lvMovies.Columns
                .AddRange(new[] 
                {
                    new ColumnHeader() { Text = "Video Name", Width = 100, TextAlign = HorizontalAlignment.Left },
                    new ColumnHeader() { Text = "Image Name", Width = 100, TextAlign = HorizontalAlignment.Left }
                });
            lvMovies.Items.AddRange(Enumerable.Range(0, 20).Select(i => new ListViewItem(new [] { $"Movie{i}", $"Image{i}" })).ToArray());

            lvImages.Columns
                .AddRange(new[]
                {
                    new ColumnHeader() { Text = "Image Name", Width = 100, TextAlign = HorizontalAlignment.Left },
                    new ColumnHeader() { Text = "Last Modified", Width = 100, TextAlign = HorizontalAlignment.Left }
                });
        }

        private void OnDragEnter(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(DataFormats.Text))
            {
                e.Effect = DragDropEffects.Copy;
            }
            else
            {
                e.Effect = DragDropEffects.None;
            }
        }

        private void OnDragDrop(object sender, DragEventArgs e)
        {
            if (sender is ListView)
            {
                var lv = sender as ListView;
                var text = e.Data.GetData(DataFormats.Text).ToString();
                if (!string.IsNullOrWhiteSpace(text))
                {
                    var items = text.Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries).Select(i => i.Split(new[] { "," }, StringSplitOptions.None));
                    if (lv.Equals(lvImages) && isMoviesMouseDown)
                    {
                        lv.Items.AddRange(items.Select(i => new ListViewItem(new[] { i[1], DateTime.MinValue.ToString() })).ToArray());

                        foreach (var item in lvMovies.SelectedItems.Cast<ListViewItem>().Reverse())
                        {
                            lvMovies.Items.Remove(item);
                        }
                    }
                    else if (lv.Equals(lvMovies) && isImagesMouseDown)
                    {
                        lv.Items.AddRange(items.Select(i => new ListViewItem(new[] { "Untitled", i[0] })).ToArray());

                        foreach (var item in lvImages.SelectedItems.Cast<ListViewItem>().Reverse())
                        {
                            lvImages.Items.Remove(item);
                        }
                    }
                }
            }
            isMoviesMouseDown = false;
            isImagesMouseDown = false;
        }

        private void OnMouseDown(object sender, MouseEventArgs e)
        {
            if (sender is ListView)
            {
                var lv = sender as ListView;
                if (lv.Equals(lvImages))
                {
                    isImagesMouseDown = true;
                }
                else if (lv.Equals(lvMovies))
                {
                    isMoviesMouseDown = true;
                }
            }
        }

        private void OnMouseMove(object sender, MouseEventArgs e)
        {
            if (sender is ListView)
            {
                var lv = sender as ListView;
                if ((lv.Equals(lvImages) && !isImagesMouseDown) || (lv.Equals(lvMovies) && !isMoviesMouseDown) || e.Button.Equals(MouseButtons.Right))
                {
                    return;
                }

                var text = lv.GetItemText();
                if (string.IsNullOrWhiteSpace(text))
                {
                    return;
                }

                lv.DoDragDrop(text, DragDropEffects.Copy | DragDropEffects.Move);
            }
        }
    }

    static class Extensions
    {
        public static string GetItemText(this ListView lv)
        {
            if (lv.SelectedIndices.Count <= 0)
            {
                return "";
            }

            return $"{string.Join("|", lv.SelectedItems.Cast<ListViewItem>().Select(i => $"{string.Join(",", i.SubItems.Cast<ListViewItem.ListViewSubItem>().Select(s => s.Text))}"))}";
        }
    }
}

Open in new window

Form1.Designer.cs -

namespace EE_Q29149321
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.splitContainer1 = new System.Windows.Forms.SplitContainer();
            this.lvMovies = new System.Windows.Forms.ListView();
            this.lvImages = new System.Windows.Forms.ListView();
            ((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).BeginInit();
            this.splitContainer1.Panel1.SuspendLayout();
            this.splitContainer1.Panel2.SuspendLayout();
            this.splitContainer1.SuspendLayout();
            this.SuspendLayout();
            // 
            // splitContainer1
            // 
            this.splitContainer1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.splitContainer1.Location = new System.Drawing.Point(0, 0);
            this.splitContainer1.Name = "splitContainer1";
            // 
            // splitContainer1.Panel1
            // 
            this.splitContainer1.Panel1.Controls.Add(this.lvMovies);
            // 
            // splitContainer1.Panel2
            // 
            this.splitContainer1.Panel2.Controls.Add(this.lvImages);
            this.splitContainer1.Size = new System.Drawing.Size(800, 450);
            this.splitContainer1.SplitterDistance = 398;
            this.splitContainer1.TabIndex = 2;
            // 
            // lvMovies
            // 
            this.lvMovies.Dock = System.Windows.Forms.DockStyle.Fill;
            this.lvMovies.Location = new System.Drawing.Point(0, 0);
            this.lvMovies.Name = "lvMovies";
            this.lvMovies.Size = new System.Drawing.Size(398, 450);
            this.lvMovies.TabIndex = 0;
            this.lvMovies.UseCompatibleStateImageBehavior = false;
            this.lvMovies.DragDrop += new System.Windows.Forms.DragEventHandler(this.OnDragDrop);
            this.lvMovies.DragEnter += new System.Windows.Forms.DragEventHandler(this.OnDragEnter);
            this.lvMovies.MouseDown += new System.Windows.Forms.MouseEventHandler(this.OnMouseDown);
            this.lvMovies.MouseMove += new System.Windows.Forms.MouseEventHandler(this.OnMouseMove);
            // 
            // lvImages
            // 
            this.lvImages.Dock = System.Windows.Forms.DockStyle.Fill;
            this.lvImages.Location = new System.Drawing.Point(0, 0);
            this.lvImages.Name = "lvImages";
            this.lvImages.Size = new System.Drawing.Size(398, 450);
            this.lvImages.TabIndex = 0;
            this.lvImages.UseCompatibleStateImageBehavior = false;
            this.lvImages.DragDrop += new System.Windows.Forms.DragEventHandler(this.OnDragDrop);
            this.lvImages.DragEnter += new System.Windows.Forms.DragEventHandler(this.OnDragEnter);
            this.lvImages.MouseDown += new System.Windows.Forms.MouseEventHandler(this.OnMouseDown);
            this.lvImages.MouseMove += new System.Windows.Forms.MouseEventHandler(this.OnMouseMove);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(800, 450);
            this.Controls.Add(this.splitContainer1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.OnLoad);
            this.splitContainer1.Panel1.ResumeLayout(false);
            this.splitContainer1.Panel2.ResumeLayout(false);
            ((System.ComponentModel.ISupportInitialize)(this.splitContainer1)).EndInit();
            this.splitContainer1.ResumeLayout(false);
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.SplitContainer splitContainer1;
        private System.Windows.Forms.ListView lvMovies;
        private System.Windows.Forms.ListView lvImages;
    }
}

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Which produces the following results -

-saige-

trevor1940

ASKER

Hi

This is a good start thanx
My ultimate goal is to create a UI for renaming jpg's to movies so the file name is the same just different extensions

When I drag a single image name from lvImages on to lvMovies a new row is created (PIC)
I need to be able to drag to a specific row (replacing what's there)

eg
"SampleVideo_3.mkv" -> "images.jpg" (same Row not like the pic.)

Dragging from Explorer isn't implemented

trevor1940

ASKER

Hi

Just been googling should I be using a DataGridView instead of a Listview?

These seem to be editable?

ASKER CERTIFIED SOLUTION

it_saige

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trevor1940

ASKER

Hi

I've been looking through your code worked out how to drag a File.jpg from explorer on to lvMovies could you have a look at my changes (marked with ###) to OnDragEnter and OnDragDrop to see if this is the best way?

Form1.cs

using System;
using System.Linq;
using System.Windows.Forms;
using System.IO;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;

namespace EE_Q29149321
{
    public partial class Form1 : Form
    {
        bool isImagesMouseDown;
        bool isMoviesMouseDown;
        // ### Hold a used list of jpg's
        new HashSet<String> JpgFileEntries = new HashSet<String>();
        string DataFormat { get; set; }
        public Form1()
        {
            InitializeComponent();
            //  ### Folder with *.mp4's and *.jpg's to load into the ListView
            Load_ListViews(@"E:\Temp");
        }
        private void Load_ListViews(string DirPath)
        {
            if (Directory.Exists(DirPath))
            {

                var mFiles = Directory.EnumerateFiles(DirPath, "*", SearchOption.TopDirectoryOnly).Where(s => s.EndsWith(".mp4") || s.EndsWith(".mkv") || s.EndsWith(".avi")); ;
                foreach (string mFile in mFiles)
                {
                    FileInfo FI = new FileInfo(mFile);
                    string fName = FI.Name;
                    string jFile = Path.ChangeExtension(mFile, "jpg");
                    ListViewItem item = new ListViewItem();
                    item.Text = fName;
                    if (File.Exists(jFile))
                    {
                        FileInfo JI = new FileInfo(jFile);
                        string jName = JI.Name;
                        item.SubItems.Add(jName);
                        JpgFileEntries.Add(JI.FullName);

                    }
                    else
                    {

                        item.SubItems.Add("");
                    }
                    //  To Do  Best guess for other jpg's using RegEx
                    lvMovies.Items.Add(item);
                }

                // What's left needs manual choice
                var jpgFiles = Directory.EnumerateFiles(DirPath, "*", SearchOption.TopDirectoryOnly).Where(s => s.EndsWith(".jpg") || s.EndsWith(".jpeg"));
                foreach (string jpgFile in jpgFiles)
                {
                    FileInfo JI = new FileInfo(jpgFile);
                    string jName = JI.Name;

                    if (JpgFileEntries.Add(jpgFile))
                    {
                        ListViewItem item = new ListViewItem();
                        item.Text = jName;
                        item.SubItems.Add(JI.LastAccessTime.ToShortDateString());
                        lvImages.Items.Add(item);
                    }
                }
            }
        }
        private void OnLoad(object sender, EventArgs e)
        {
            AllowDrop = lvMovies.AllowDrop = lvImages.AllowDrop = true;
            lvMovies.View = lvImages.View = View.Details;
            lvMovies.FullRowSelect = lvImages.FullRowSelect = true;
            lvMovies.Columns
                .AddRange(new[]
                {
                    new ColumnHeader() { Text = "Video Name", Width = 100, TextAlign = HorizontalAlignment.Left },
                    new ColumnHeader() { Text = "Image Name", Width = 100, TextAlign = HorizontalAlignment.Left }
                });
            //lvMovies.Items.AddRange(Enumerable.Range(0, 5).Select(i => new ListViewItem(new[] { $"Movie{i}", $"Image{i}" })).ToArray());

            lvImages.Columns
                .AddRange(new[]
                {
                    new ColumnHeader() { Text = "Image Name", Width = 100, TextAlign = HorizontalAlignment.Left },
                    new ColumnHeader() { Text = "Last Modified", Width = 100, TextAlign = HorizontalAlignment.Left }
                });
            //lvImages.Items.AddRange(Enumerable.Range(5, 5).Select(i => new ListViewItem(new[] { $"Image{i}", $"{DateTime.Now.AddDays(i)}" })).ToArray());
        }

        private void OnDragEnter(object sender, DragEventArgs e)
        {
            // Work out the format of what's being dragged  and set DataFormat
            if (e.Data.GetDataPresent(DataFormats.Text))
            {
                e.Effect = DragDropEffects.Copy;
                DataFormat = "text";
            }
            //  ####
            else if(e.Data.GetDataPresent(DataFormats.FileDrop))
            {
                e.Effect = DragDropEffects.Copy;
                DataFormat = "FileDrop";
            }
            else
            {
                e.Effect = DragDropEffects.None;
            }
        }

        private void OnDragDrop(object sender, DragEventArgs e)
        {
            if (sender is ListView)
            {
                var lv = sender as ListView;
                var text = "";
                // ### didn't know if other options exist hence switch
                switch (DataFormat)
                {
                    case "text":
                        // from a listview => FileName.jpg,Date
                        text = e.Data.GetData(DataFormats.Text).ToString();
                        break;
                    case "FileDrop":
                        // from exploror
                        string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);

                        foreach (string file in files)
                        {
                            // emulate text from ListView
                            if (Path.GetExtension(file) == ".jpg")
                            {
                                FileInfo JI = new FileInfo(file);
                                string jName = JI.Name;
                                string ModDate = JI.LastAccessTime.ToShortDateString();
                                text = jName + "," + ModDate;
                            }
                        }

                        break;
                }
                var point = lv.PointToClient(new Point(e.X, e.Y));
                var hovered = lv.GetItemAt(point.X, point.Y);
                if (!string.IsNullOrWhiteSpace(text))
                {
                    var items = text.Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries).Select(i => i.Split(new[] { "," }, StringSplitOptions.None)).ToList();
                    if (lv.Equals(lvImages) && isMoviesMouseDown)
                    {
                        if (hovered == null)
                        {
                            lv.Items.AddRange(items.Select(i => new ListViewItem(new[] { i[1], DateTime.MinValue.ToString() })).ToArray());
                        }
                        else
                        {
                            hovered.Text = items[0][1];
                        }

                        foreach (var item in lvMovies.SelectedItems.Cast<ListViewItem>().Reverse())
                        {
                            lvMovies.Items.Remove(item);
                        }
                    }
                    else if (lv.Equals(lvMovies) && isImagesMouseDown)
                    {
                        if (hovered == null)
                        {
                            lv.Items.AddRange(items.Select(i => new ListViewItem(new[] { "Untitled", i[0] })).ToArray());
                        }
                        else
                        {
                            hovered.SubItems[1].Text = items[0][0];
                        }

                        foreach (var item in lvImages.SelectedItems.Cast<ListViewItem>().Reverse())
                        {
                            lvImages.Items.Remove(item);
                        }
                    }
                    // ### File dropped from Explorer
                    // ### Not sure if this is good
                    else if (lv.Equals(lvMovies)  && DataFormat == "FileDrop")
                    {
                        hovered.SubItems[1].Text = items[0][0];
                    }
                }
            }
            isMoviesMouseDown = false;
            isImagesMouseDown = false;
        }

        private void OnMouseDown(object sender, MouseEventArgs e)
        {
            if (sender is ListView)
            {
                var lv = sender as ListView;
                if (lv.Equals(lvImages))
                {
                    isImagesMouseDown = true;
                }
                else if (lv.Equals(lvMovies))
                {
                    isMoviesMouseDown = true;
                }
            }
        }

        private void OnMouseMove(object sender, MouseEventArgs e)
        {
            if (sender is ListView)
            {
                var lv = sender as ListView;
                if ((lv.Equals(lvImages) && !isImagesMouseDown) || (lv.Equals(lvMovies) && !isMoviesMouseDown) || e.Button.Equals(MouseButtons.Right))
                {
                    return;
                }

                var text = lv.GetItemText();
                if (string.IsNullOrWhiteSpace(text))
                {
                    return;
                }

                lv.DoDragDrop(text, DragDropEffects.Copy | DragDropEffects.Move);
            }
        }
    }

    // This gets fired every time the mouse moves, No idea why? 
    static class Extensions
    {
        public static string GetItemText(this ListView lv)
        {
            if (lv.SelectedIndices.Count <= 0)
            {
                return "";
            }

            return $"{string.Join("|", lv.SelectedItems.Cast<ListViewItem>().Select(i => $"{string.Join(",", i.SubItems.Cast<ListViewItem.ListViewSubItem>().Select(s => s.Text))}"))}";
        }
    }
}

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trevor1940

ASKER

Thanx Very much