Msgbox when columns oerder change

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Hi How can i open a message box when i change my datagridview columns position

What I have tried:

<pre>Private Sub RAPOR_AllowUserToOrderColumnsChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RAPOR.AllowUserToOrderColumnsChanged
        MsgBox("JJJ")  END SUB

Posted 1-Mar-20 8:27am

Member 14588284

Updated 1-Mar-20 8:46am

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Wendelius · Answer 1 · 2020-03-01T08:47:00

Try handling the DataGridView.ColumnDisplayIndexChanged Event (System.Windows.Forms) | Microsoft Docs[^] instead

ADDED
If I understand the situation correctly, you can use the event mentioned above and create a new data source each time the ordering changes.

For example if you have two DataGridView objects on a window (dgv1 and dgv2), consider the following code

VB

Public Class Form1

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim data1 As DataTable = New DataTable()

        data1.Columns.Add("First")
        data1.Columns.Add("Second")
        data1.Columns.Add("Third")

        dgv1.DataSource = data1
        DisplayColumns()
    End Sub

    Private Sub dgv1_ColumnDisplayIndexChanged(sender As Object, e As DataGridViewColumnEventArgs) Handles dgv1.ColumnDisplayIndexChanged
        DisplayColumns()
    End Sub

    Private Sub DisplayColumns()
        Dim data2 As DataTable = New DataTable()

        data2.Columns.Add("Ordinal", GetType(Integer))
        data2.Columns.Add("ColumnName", GetType(String))

        Dim colList = From column In dgv1.Columns.Cast(Of DataGridViewColumn) Order By column.DisplayIndex

        For Each col As DataGridViewColumn In colList
            data2.Rows.Add(col.DisplayIndex, col.HeaderText)
        Next

        dgv2.DataSource = data2
    End Sub
End Class