Color autogeneratedcolumn cells using IValueConverter WPF - wpf

Question

I would like to ask you if it's possible to change autogeneradetcolumn cells color using Converter?
My Datagrid in xaml:
<DataGrid ItemsSource="{Binding FillDG}" x:Name="ListHoliday"
HorizontalAlignment="Left" Height="186" VerticalAlignment="Top"
Width="880" Grid.Column="1" Margin="10.4,103,0,0" Grid.Row="1"/>
codebehind:
Dim sql As String
Dim startDate As Date = dtStartV.SelectedDate
Dim endDate As DateTime = dtEndV.SelectedDate
Dim numberOfDays As Integer = ((endDate.Date) - (startDate.Date)).Days + 1
sql = "SELECT Enumber, HType, HStartDate, HEndDate from tbl_HolidayLog"
Dim da As New SqlDataAdapter(sql, cnn)
Dim dt As New DataSet
da.Fill(dt, "Holiday")
With Me.ListHoliday
.ItemsSource = dt.Tables("Holiday").DefaultView
End With
For dayCount As Integer = -1 To (numberOfDays - 0)
Dim currentDate As Date = Convert.ToDateTime(startDate.AddDays(dayCount))
Dim formatedD As String = currentDate.ToString("dd/MM")
If currentDate.DayOfWeek <> DayOfWeek.Saturday AndAlso currentDate.DayOfWeek <> DayOfWeek.Sunday Then
Dim c1 As New DataGridTextColumn
c1.Header = Format(currentDate, "MMMM") & vbCrLf & formatedD
ListHoliday.Columns.Add(c1)
For Each item As DataRowView In ListHoliday.ItemsSource
Dim saDate As DateTime = item.Item("HStartDate")
Dim enDate As DateTime = item.Item("HEndDate")
Dim numberOfHeader As Integer = ((enDate.Date) - (saDate.Date)).Days - 0
For dayCountHeader As Integer = 0 To (numberOfHeader - 0)
count(dayCountHeader) = 0
Next dayCountHeader
Next
End If
Next dayCount
I don't have any name for columns because 4 of theme are from table and the rest (dates) are created programmatically. And I would like to color cells in those programmatically created columns. Converter could be like:
Dim V As SolidColorBrush = Brushes.White
Dim holi As New HolidayLog
For Each hitem As DataRowView In holi.dgMyTeamView.ItemsSource
Dim hType As String = hitem.Item("HType")
If hType.Trim() = "Vacation" Then
V = Brushes.Blue
End If
Next
Return V
But I don't know how can I bind this to each autogenerated date cell/column.
Thank you very much for any advice!

Answer 1

You can set CellStyle of DataGrid which will be picked up by autogenerated columns cell.
<DataGrid>
<DataGrid.CellStyle>
<Style TargetType="DataGridCell">
<Setter Property="Background"
Value="{Binding Converter={StaticResource ColorConverter}}"/>
</Style>
</DataGrid.CellStyle>
</DataGrid>
UPDATE:
You can pass the Column to converter and color only in case Column is the one you want to color.
<DataGrid>
<DataGrid.CellStyle>
<Style TargetType="DataGridCell">
<Setter Property="Background"
Value="{Binding Column,
RelativeSource={RelativeSource Self},
Converter={StaticResource ColorConverter}}"/>
</Style>
</DataGrid.CellStyle>
</DataGrid>
Converter:
DataGridColumn column = value as DataGridColumn;
// Check for property name here.
if (column != null && column.Header.ToString() == "Name")
{
return Brushes.Blue;
}
return Brushes.White;