[RESOLVED] How to set DataGrid Cell Color

[Brian Henry]

I'm trying to set the cell color of a WPF datagrid. But I can't get this to work.

                Dim firstRow As DataGridRow = TryCast(DG1.ItemContainerGenerator.ContainerFromItem(DG1.Items(0)), DataGridRow)
                Dim firstColumnInFirstRow As DataGridCell = TryCast(DG1.Columns(0).GetCellContent(firstRow).Parent, DataGridCell)
                'set background
                firstColumnInFirstRow.Background = Brushes.Red

[KGComputers]

Your code throws an exception. In order to access datagrid row/cell, define an extension method to return the DataGridRow.

Module DataGridExtensions
<Extension()>
Function GetRow(ByVal grid As DataGrid, ByVal index As Integer) As DataGridRow
Dim row As DataGridRow = DirectCast(grid.ItemContainerGenerator.ContainerFromIndex(index), DataGridRow)
If row Is Nothing Then
grid.UpdateLayout()
grid.ScrollIntoView(grid.Items(index))
row = DirectCast(grid.ItemContainerGenerator.ContainerFromIndex(index), DataGridRow)
End If
Return row
End Function
End Module

usage:

Dim firstRow As DataGridRow = grid1.GetRow(0)
Dim firstColumnInFirstRow As Controls.DataGridCell = DirectCast(grid1.Columns(0).GetCellContent(firstRow).Parent, Controls.DataGridCell)
'set background
firstColumnInFirstRow.Background = Brushes.Red

KGC

[Brian Henry]

Thanks for your help it work now.

[KGComputers]

Hi,

Your welcome....

KGC