Hi Maurizio,
Thank you for reaching out.
From the provided information and the image you shared, as
per understanding,you want to retain the custom background color of individual
cells when selecting the entire row. Specifically, you're using the
QueryCellStyle event to change the cell back color based on its value, but upon
row selection, the color is lost.
To achieve the desired behavior where the cell back color is
preserved even when selecting the row, you can handle the DrawCell event. This
allows you to redraw the cell and set the back color based on the column name
and row data values.
Below is an updated code
snippet to help you:
|
sfDataGrid.DrawCell += SfDataGrid_DrawCell;
private void SfDataGrid_DrawCell(object sender,
Syncfusion.WinForms.DataGrid.Events.DrawCellEventArgs e)
{
if(e.Column.MappingName==
"CustomerID" && (e.DataRow.RowData as OrderInfo).CustomerID
== "ALFKI")
{
e.Style.BackColor = Color.Red;
e.Style.TextColor = Color.White;
StringFormat
format = new StringFormat();
DrawingHelper drawingHelper = new DrawingHelper();
format.Alignment = (StringAlignment)e.Style.HorizontalAlignment;
format.LineAlignment = (StringAlignment)e.Style.VerticalAlignment;
e.Graphics.FillRectangle(new SolidBrush(e.Style.BackColor), e.Bounds);
e.Graphics.DrawString(e.DisplayText, e.Style.GetFont(), new
SolidBrush(e.Style.TextColor), e.Bounds, format);
e.Graphics.DrawLine(new
Pen(e.Style.Borders.Right.Color), e.Bounds.Right - 1, e.Bounds.Top,
e.Bounds.Right - 1, e.Bounds.Bottom);
e.Graphics.DrawLine(new Pen(e.Style.Borders.Bottom.Color), e.Bounds.Left,
e.Bounds.Bottom - 1, e.Bounds.Right, e.Bounds.Bottom - 1);
//
Handling the event
e.Handled = true;
}
}
|
With this approach, the specific cell will retain its back
color even when the row is selected. The key is to handle the DrawCell event,
which allows you to override the default styling,when a row is selected.
Please review the attached modified sample for further
reference. Let me know if you need any additional assistance.
Regards,
Santhosh.G
Attachment:
ObservableCollection_fbb647ed.zip
