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VB.net Drag and drop from a ListBox to a TextBox

Posted on 2012-04-09
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Last Modified: 2012-04-09
Hi

In VB.net what code would I use to drag a List Box item into a TextBox below it.

Thanks
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Question by:murbro
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by:käµfm³d 👽
ID: 37822915
Are you moving the item or simply copying it?
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käµfm³d   👽 earned 500 total points
ID: 37822928
Here's a very simple example of copying the text into the TextBox.

Public Class Form1

  Private Sub ListBox1_MouseDown(sender As Object, e As MouseEventArgs) Handles ListBox1.MouseDown
    If e.Button = Windows.Forms.MouseButtons.Left AndAlso Me.ListBox1.SelectedItem IsNot Nothing Then
      Me.ListBox1.DoDragDrop(Me.ListBox1.SelectedItem.ToString(), DragDropEffects.Copy)
    End If
  End Sub

  Private Sub TextBox1_DragEnter(sender As Object, e As DragEventArgs) Handles TextBox1.DragEnter
    If e.Data.GetDataPresent(System.Windows.Forms.DataFormats.StringFormat) Then
      e.Effect = DragDropEffects.Copy
    End If
  End Sub

  Private Sub TextBox1_DragDrop(sender As Object, e As DragEventArgs) Handles TextBox1.DragDrop
    If e.Data.GetDataPresent(System.Windows.Forms.DataFormats.StringFormat) Then
      Me.TextBox1.Text = e.Data.GetData(System.Windows.Forms.DataFormats.StringFormat).ToString()
    End If
  End Sub
End Class

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Removing the text from the source ListBox would require a bit more work, but not much.
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Author Closing Comment

by:murbro
ID: 37822935
Thanks very much. I am copying it
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