Make sure the drop data is Text : Drag Drop « GUI « VB.Net

Home
VB.Net
1.2D
2.Application
3.Class
4.Data Structure
5.Data Types
6.Database ADO.net
7.Development
8.Event
9.File Directory
10.Generics
11.GUI
12.Language Basics
13.LINQ
14.Network Remote
15.Security
16.Thread
17.Windows Presentation Foundation
18.Windows System
19.XML
20.XML LINQ
VB.Net Tutorial
VB.Net by API
VB.Net » GUI » Drag DropScreenshots 
Make sure the drop data is Text
Make sure the drop data is Text

Imports System
Imports System.Runtime.InteropServices
Imports System.Drawing
Imports System.ComponentModel
Imports System.Windows.Forms
Imports System.IO
Imports System.Xml.Serialization

Public Class MainClass
    
    Shared Sub Main(ByVal args As String())
        Dim myform As New Form1()
        Application.Run(myform)            

    End Sub

End Class
Public Class Form1
 ' Start a drag.
    Private Sub lblDragSource_MouseDown(ByVal sender As Object, _
     ByVal e As System.Windows.Forms.MouseEventArgs_
     Handles lblDragSource.MouseDown
        lblDragSource.DoDragDrop("Data!", DragDropEffects.Copy)
    End Sub

    ' Make sure the drag is coming from lblDragSource.
    Private Sub lblDropTarget_DragEnter(ByVal sender As Object, _
     ByVal e As System.Windows.Forms.DragEventArgsHandles lblDropTarget.DragEnter
        ' See if the drag data includes text.
        If e.Data.GetDataPresent("Text"Then
            e.Effect = DragDropEffects.Copy
        Else
            e.Effect = DragDropEffects.None
        End If
    End Sub

    ' Display the dropped data.
    Private Sub lblDropTarget_DragDrop(ByVal sender As Object, _
     ByVal e As System.Windows.Forms.DragEventArgs_
     Handles lblDropTarget.DragDrop
        MessageBox.Show(e.Data.GetData("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.lblDragSource = New System.Windows.Forms.Label
        Me.lblDropTarget = New System.Windows.Forms.Label
        Me.SuspendLayout()
        '
        'lblDragSource
        '
        Me.lblDragSource.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
        Me.lblDragSource.Location = New System.Drawing.Point(1616)
        Me.lblDragSource.Name = "lblDragSource"
        Me.lblDragSource.Size = New System.Drawing.Size(9664)
        Me.lblDragSource.TabIndex = 0
        Me.lblDragSource.Text = "Drag Source"
        Me.lblDragSource.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
        '
        'lblDropTarget
        '
        Me.lblDropTarget.AllowDrop = True
        Me.lblDropTarget.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
        Me.lblDropTarget.Location = New System.Drawing.Point(16816)
        Me.lblDropTarget.Name = "lblDropTarget"
        Me.lblDropTarget.Size = New System.Drawing.Size(9664)
        Me.lblDropTarget.TabIndex = 1
        Me.lblDropTarget.Text = "Drop Target"
        Me.lblDropTarget.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(27995)
        Me.Controls.Add(Me.lblDropTarget)
        Me.Controls.Add(Me.lblDragSource)
        Me.Name = "Form1"
        Me.Text = "LabelDrag"
        Me.ResumeLayout(False)

    End Sub
    Friend WithEvents lblDragSource As System.Windows.Forms.Label
    Friend WithEvents lblDropTarget As System.Windows.Forms.Label

End Class

           
       
Related examples in the same category
1.Tree drag and drop to a TextBox
2.ListBox drag and drop to a TextBoxListBox drag and drop to a TextBox
3.Drag and drop serialized Object base on XMLDrag and drop serialized Object base on XML
4.Drag and drop TreeViewDrag and drop TreeView
5.Drag and drop between two ListBoxDrag and drop between two ListBox
6.Drag and drop between Two RichTextBoxDrag and drop between Two RichTextBox
7.Simple Drag and Drop Event IllustrationSimple Drag and Drop Event Illustration
8.Drag and Drop between LabelsDrag and Drop between Labels
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.