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();
}
}
|
