Datagridview Multiple Row headers

[omacron]

Hi I have a DataGridView were I need to have multiple row headers. Like this;

          C1   C2   C3
Ra   R1
Ra   R2
Rb   R1
Rb   R1

Cannot seem to get it to work. Here is some sample test code I have been working with;

Public Class Form1

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load


        Dim column0 As DataGridViewColumn = New DataGridViewTextBoxColumn()
        column0.DataPropertyName = "C0"
        column0.Name = " "
        DataGridView1.Columns.Add(column0)

        Dim column1 As DataGridViewColumn = New DataGridViewTextBoxColumn()
        column1.DataPropertyName = "C1"
        column1.Name = "C1"
        DataGridView1.Columns.Add(column1)

        Dim column2 As DataGridViewColumn = New DataGridViewTextBoxColumn()
        column2.DataPropertyName = "C2"
        column2.Name = "C2"
        DataGridView1.Columns.Add(column2)

  DataGridView1.RowHeadersWidth = CInt(DataGridView1.RowHeadersWidth * 1.25)
For x As Integer = 1 To 5
    DataGridView1.Rows.Add()
    DataGridView1.Rows(x - 1).HeaderCell.Value = "A" & x.ToString
    DataGridView1.Rows(x).HeaderCell.Value = "B" & x.ToString
Nextt

    End Sub
End Class

 

[MajP]

    Public Sub LoadGrid()
        Dim dgv As DataGridView = Me.DataGridView1
        Dim cHeaders() As String = {"C1", "C2", "C3"}
        Dim r1Headers() As String = {"RA", "RB"}
        Dim r2Headers() As String = {"R1", "R2"}
        Dim k As Integer
        For i As Integer = 0 To cHeaders.Count - 1
            dgv.Columns.Add("Col" & cHeaders(i), cHeaders(i))
        Next
        For j As Integer = 0 To r1Headers.Count - 1
            For k = 0 To r2Headers.Count - 1
                dgv.Rows.Add()
                dgv.Rows(dgv.Rows.Count - 2).HeaderCell.Value = r1Headers(j) & " " & r2Headers(k)
            Next
            k = 0
        Next
    End Sub

 

[omacron]

That is not exactly what I need. It needs to be an actual row header and have a visual separation, not just a space.

 

[MajP]

If I understand you are asking for multiple row headers, per row. I may be wrong, but as far as I know there is no native way to do this. The more common thing is multiple rows of column headers, and even that is not directly supported in a datagridview. I do think a flexgrid and other grids support it. There is a lot of examples of code to create multiple rows of column headers, but I never seen multi row headers. I think the way to do a second row header is to create a user defined column something like:

http://www.devx.com/codemag/Article/35186#codeitemarea

Besides looking like the row header (which should be easy), what other behavior does it need to have? I assume the biggest thing is that its sort is locked to the first row "header" sort.