Drag and Drop TextBox : Drag Drop : GUI Windows Forms C# Examples

    
using  System;
using  System.Windows.Forms;

public  class  TextBoxDragDropDemo  :  Form
{
        public  TextBoxDragDropDemo()
        {
                InitializeComponent();
        }

        private  void  TextBox_MouseDown(object  sender,  MouseEventArgs  e)
        {
                TextBox  txt  =  (TextBox)sender;
                txt.SelectAll();
                txt.DoDragDrop(txt.Text,  DragDropEffects.Copy);
        }

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

        private  void  TextBox_DragDrop(object  sender,  DragEventArgs  e)
        {
                TextBox  txt  =  (TextBox)sender;
                txt.Text  =  (string)e.Data.GetData(DataFormats.Text);
        }

        [STAThread]
        public  static  void  Main(string[]  args)
        {
                Application.Run(new  TextBoxDragDropDemo());
        }
        private  System.Windows.Forms.TextBox  TextBox2;
        private  System.Windows.Forms.TextBox  TextBox1;

        private  void  InitializeComponent()
        {
                this.TextBox2  =  new  System.Windows.Forms.TextBox();
                this.TextBox1  =  new  System.Windows.Forms.TextBox();
                this.SuspendLayout();

                this.TextBox2.AllowDrop  =  true;
                this.TextBox2.Location  =  new  System.Drawing.Point(28,  129);
                this.TextBox2.Multiline  =  true;
                this.TextBox2.Size  =  new  System.Drawing.Size(196,  77);
                this.TextBox2.DragDrop  +=  new  System.Windows.Forms.DragEventHandler(this.TextBox_DragDrop);
                this.TextBox2.DragEnter  +=  new  System.Windows.Forms.DragEventHandler(this.TextBox_DragEnter);
                this.TextBox2.MouseDown  +=  new  System.Windows.Forms.MouseEventHandler(this.TextBox_MouseDown);

                this.TextBox1.AllowDrop  =  true;
                this.TextBox1.Location  =  new  System.Drawing.Point(28,  36);
                this.TextBox1.Multiline  =  true;
                this.TextBox1.Size  =  new  System.Drawing.Size(196,  77);
                this.TextBox1.DragDrop  +=  new  System.Windows.Forms.DragEventHandler(this.TextBox_DragDrop);
                this.TextBox1.DragEnter  +=  new  System.Windows.Forms.DragEventHandler(this.TextBox_DragEnter);
                this.TextBox1.MouseDown  +=  new  System.Windows.Forms.MouseEventHandler(this.TextBox_MouseDown);

                this.AutoScaleDimensions  =  new  System.Drawing.SizeF(6F,  13F);
                this.AutoScaleMode  =  System.Windows.Forms.AutoScaleMode.Font;
                this.ClientSize  =  new  System.Drawing.Size(292,  266);
                this.Controls.Add(this.TextBox2);
                this.Controls.Add(this.TextBox1);
                this.ResumeLayout(false);
                this.PerformLayout();

        }
}