How to use NumberFormatInfo in the SummaryColumn of the GridTableSummaryRow in WPF Grid?
In the WPF DataGrid, you can use NumberFormatInfo in the SummaryColumn of the GridTableSummaryRow by deriving a new class from GridTableSummaryCellRenderer and override its OnUpdateEditBinding virtual method.
By default, summary result is displayed based on the Format specified in SummaryColumn.
C#:
public class GridTableSummaryCellRendererExt : GridTableSummaryCellRenderer
{
public override void OnUpdateEditBinding(DataColumnBase column, Syncfusion.UI.Xaml.Grid.GridTableSummaryCell element, object dataContext)
{
//Check whether the datacontext is SummaryRecordEntry
var record = dataContext as SummaryRecordEntry;
if (!(dataContext is SummaryRecordEntry))
return;
//Process each SummaryColumn and get the display text of corresponding summary
foreach (ISummaryColumn summaryColumn in record.SummaryRow.SummaryColumns)
{
if (!summaryColumn.MappingName.Contains(column.GridColumn.MappingName))
continue;
string summarytext = string.Empty;
if (record.SummaryRow.ShowSummaryInRow)
summarytext = SummaryCreator.GetSummaryDisplayTextForRow(record, this.DataGrid.View);
else
summarytext = SummaryCreator.GetSummaryDisplayText(record, column.GridColumn.MappingName, this.DataGrid.View);
if (!string.IsNullOrEmpty(summarytext))
{
//Create new number format and apply it to summary columns
NumberFormatInfo format = new NumberFormatInfo();
format.NumberDecimalDigits = 3;
format.NumberDecimalSeparator = "*";
format.NumberGroupSeparator = ",";
//Number format is applied to summary columns
element.Content = Convert.ToDouble(double.Parse(summarytext, NumberStyles.Currency)).ToString("N", format);
}
}
}
}
Refer to the following code example to remove the default GridTableSummaryCellRenderer and add the customized GridTableSummaryCellRendererExt to the renderer’s collection in the SfDataGrid.
C#
public MainWindow()
{
InitializeComponent();
//Customized GridTableSummaryCellRendererExt is added to the CellRenderers collection
grid.CellRenderers.Remove("TableSummary");
grid.CellRenderers.Add("TableSummary", new GridTableSummaryCellRendererExt());
}
The above formatting is applied to summary values as follows.
Figure 1:NumberFormatInfo is applied to summary values
Sample Links:
Conclusion
I hope you enjoyed learning about how to use NumberFormatInfo in the SummaryColumn of the GridTableSummaryRow in WPF Grid.
You can refer to our WPF Grid feature tour page to know about its other groundbreaking feature representations. You can also explore our WPF Grid documentation to understand how to create and manipulate data.
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