Total row formatting

[FilipN]

Hello,
I am using GridViewSummaryRowItem and i found it very useful so far. However I have problem with adding custom format (color, border) to the total row. In examples there is code snippet that uses  cell formatting event to do so:

  if (e.CellElement is GridSummaryCellElement)
            {
 //Set formatting...
            }

But my GridView doesn't fire either cellfromatting or rowformatting event for the total row, so I have no way how for example set custom background color. Here's my code to setup the total row:

     

      GridViewSummaryRowItem sum = new GridViewSummaryRowItem();
            sum.Add(new GridViewSummaryItem("CeleJmeno", "Celkem", GridAggregateFunction.None));
            sum.Add(new GridViewSummaryItem("Preplatek", "{0:C}", GridAggregateFunction.Sum));
            sum.Add(new GridViewSummaryItem("Zustatek", "{0:C}", GridAggregateFunction.Sum));

            this.grdHromadnaVyplatnice.MasterGridViewTemplate.SummaryRowsBottom.Add(sum);

[Jack]

Hi FilipN,

CellFormatting event fires only for data cells. The summary row doesn't have a representation in the data source and you should handle ViewCellFormatting event instead. Here is a sample:

void radGridView1_ViewCellFormatting(object sender, CellFormattingEventArgs e)
{
    GridSummaryCellElement cell = e.CellElement as GridSummaryCellElement;
    if (cell != null)
    {
        object[] values = cell.Values;
        if ((int)values[0] > 5)
        {
            e.CellElement.ForeColor = Color.Red;
        }
        else
        {
            e.CellElement.ForeColor = Color.Black;
        }
    }
}

Please write us back if you have any questions.

Greetings,
Jack
the Telerik team

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[Doug Hamilton]

I am having trouble implementing this using VB.Net.  I can't get the correct syntax for checking to see if the grid is positioned on the summary row to do the formatting.  Any help would be appreciated.  Here is the code I am currently trying to use:

    Private Sub uiDelinquent_Importgrd_ViewCellFormatting(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.CellFormattingEventArgs) Handles uiDelinquent_Importgrd.ViewCellFormatting

        Dim cell As GridSummaryCellElement = New GridSummaryCellElement()

        If (e.CellElement Is cell) Then
            e.CellElement.ForeColor = Color.Blue
            e.CellElement.BackColor = Color.CadetBlue
        End If

    End Sub

Doug

[Doug Hamilton]

After further thought.... I decided to actually look at one of the examples for the Gridview that comes with the install of the telerik control and discovered my answer!

        Private Sub radGridView1_CellFormatting(ByVal sender As Object, ByVal e As CellFormattingEventArgs)
            If TypeOf e.CellElement Is GridSummaryCellElement Then
                e.CellElement.DrawBorder = True
                e.CellElement.BorderBoxStyle = BorderBoxStyle.FourBorders
                e.CellElement.BorderLeftWidth = 0
                e.CellElement.BorderRightWidth = 0
                e.CellElement.BorderBottomWidth = 0
                e.CellElement.BorderTopWidth = 1
                e.CellElement.BorderTopColor = Color.Black
                e.CellElement.TextAlignment = ContentAlignment.MiddleLeft
            End If
        End Sub

Which has put me on the path to enlightenment!  dooooh!!!

Doug