Simple Drag and Drop Event Illustration
Imports System.Drawing.Drawing2D
Imports System
Imports System.Drawing.Text
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Math
Imports System.Xml.Serialization
Imports System.IO
Public Class MainClass
Shared Sub Main()
Dim form1 As Form = New Form1()
Application.Run(form1)
End Sub
End Class
Public Class Form1
Private m_Dragging As Boolean
Private Sub lblDragSource_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles lblDragSource.MouseDown
m_Dragging = True
lblDragSource.DoDragDrop("Text from source", DragDropEffects.Copy)
m_Dragging = False
End Sub
Private Sub lblDropTarget_DragEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles lblDropTarget.DragEnter
If m_Dragging Then
e.Effect = DragDropEffects.Copy
Else
e.Effect = DragDropEffects.None
End If
End Sub
Private Sub lblDropTarget_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles lblDropTarget.DragDrop
MessageBox.Show(e.Data.GetData(DataFormats.Text).ToString)
End Sub
End Class
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Public Class Form1
Inherits System.Windows.Forms.Form
'Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Me.lblDropTarget = New System.Windows.Forms.Label
Me.lblDragSource = New System.Windows.Forms.Label
Me.SuspendLayout()
'
'lblDropTarget
'
Me.lblDropTarget.AllowDrop = True
Me.lblDropTarget.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
Me.lblDropTarget.Location = New System.Drawing.Point(160, 8)
Me.lblDropTarget.Name = "lblDropTarget"
Me.lblDropTarget.Size = New System.Drawing.Size(120, 96)
Me.lblDropTarget.TabIndex = 3
Me.lblDropTarget.Text = "Drop Target"
Me.lblDropTarget.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
'
'lblDragSource
'
Me.lblDragSource.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
Me.lblDragSource.Location = New System.Drawing.Point(8, 8)
Me.lblDragSource.Name = "lblDragSource"
Me.lblDragSource.Size = New System.Drawing.Size(120, 96)
Me.lblDragSource.TabIndex = 2
Me.lblDragSource.Text = "Drag Source"
Me.lblDragSource.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
'
'Form1
'
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(288, 114)
Me.Controls.Add(Me.lblDropTarget)
Me.Controls.Add(Me.lblDragSource)
Me.Name = "Form1"
Me.Text = "DragWithinApp"
Me.ResumeLayout(False)
End Sub
Friend WithEvents lblDropTarget As System.Windows.Forms.Label
Friend WithEvents lblDragSource As System.Windows.Forms.Label
End Class
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