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VB.net Drag and drop not working on a TaskPane

Posted on 2013-02-03
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Last Modified: 2013-02-09
Hi

I have a TaskPane in my VB.net app where I had drag and drop working
on a RichTextBox. I then tried to cancel this and do the same on a ListBox but nothing works
even though I have set Allow Drop to true.
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Question by:Murray Brown
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LVL 18

Expert Comment

by:John (Yiannis) Toutountzoglou
ID: 38848382
Hi ...Can you show some Code?
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Author Comment

by:Murray Brown
ID: 38848396
Here's the code where it works. If I try to do the same with a ListBox it doesn't


 Private Sub txtWhereColumnVariables_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles txtWhereColumnVariables.DragDrop
        Try
 
            Dim oDroppedText As String
            If e.Data.GetDataPresent(System.Windows.Forms.DataFormats.StringFormat) Then
                oDroppedText = e.Data.GetData(System.Windows.Forms.DataFormats.StringFormat).ToString()
                Me.txtWhereColumnVariables.Text = oDroppedText

                If Globals.ThisAddIn.oRIGHT.lblDataBaseType.Text = "Access" Then
                    If Mid(oDroppedText, 1, 1) = "[" Then
                        Dim arrSplit As Object = Split(oDroppedText, ".")
                        Dim oTableName As String = Mid(arrSplit(0), 2, Len(arrSplit(0)) - 2)
                        Dim oColumnName As String = Mid(arrSplit(1), 2, Len(arrSplit(1)) - 2)
                        Dim oResult As String = oGet_Access_Data_Type_Look(oTableName, oColumnName)
                        Me.txtWhereColumnVariables.Text = Me.txtWhereColumnVariables.Text & " " & oResult
                        Call oLoadListBox(oTableName, oColumnName)
                    End If
                Else
                    If Mid(oDroppedText, 1, 1) = "[" Then
                        Dim arrSplit As Object = Split(oDroppedText, ".")
                        Dim oTableName As String = Mid(arrSplit(0), 2, Len(arrSplit(0)) - 2)
                        Dim oColumnName As String = Mid(arrSplit(1), 2, Len(arrSplit(1)) - 2)
                        Dim oResult As String = Get_SQL_Data_Type_Look(oTableName, oColumnName)
                        Me.txtWhereColumnVariables.Text = Me.txtWhereColumnVariables.Text & " " & oResult
                        Call oLoadListBox(oTableName, oColumnName)
                    End If
                End If
            End If
        Catch ex As Exception
            MsgBox(ex.Message)
        End Try
    End Sub
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LVL 18

Assisted Solution

by:John (Yiannis) Toutountzoglou
John (Yiannis) Toutountzoglou earned 1000 total points
ID: 38848417
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Author Comment

by:Murray Brown
ID: 38848489
Thanks.
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LVL 70

Accepted Solution

by:
Éric Moreau earned 1000 total points
ID: 38848555
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Author Closing Comment

by:Murray Brown
ID: 38871426
Thanks for the help
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