DataGridView.TotalSummaries Property
Provides access to the collection of total summary items.
Namespace: DevExpress.Maui.DataGrid
Assembly: DevExpress.Maui.DataGrid.dll
NuGet Package: DevExpress.Maui.DataGrid
Declaration
public SummaryCollection TotalSummaries { get; }
Property Value
Type | Description |
---|---|
SummaryCollection | A collection of total summary items. |
Example
The following example uses predefined aggregate functions (Max and Sum) and a custom rule to calculate group and total summaries for a grid that displays orders grouped by dates.
Set up the following summaries:
- A group summary to display the maximum Total value for each group of orders.
- A total summary to calculate the sum of values in the Total column.
- A custom total summary to count the number of orders with the false value in the Shipped column.
<dxg:DataGridView x:Name="grid" ItemsSource="{Binding Orders}"
CustomSummary="grid_CalculateCustomSummary">
<!-- ... -->
<dxg:DataGridView.GroupSummaries>
<dxg:GridColumnSummary FieldName="Total" Type="Max"/>
</dxg:DataGridView.GroupSummaries>
<dxg:DataGridView.TotalSummaries>
<dxg:GridColumnSummary FieldName="Total" Type="Sum"
DisplayFormat="Total: {0:C0}"/>
<dxg:GridColumnSummary FieldName="Shipped" Type="Custom"
DisplayFormat="Not Shipped: {0}"/>
</dxg:DataGridView.TotalSummaries>
</dxg:DataGridView>
int count;
// ...
private void grid_CustomSummary(object sender, DevExpress.Maui.DataGrid.CustomSummaryEventArgs e) {
if (e.FieldName.ToString() == "Shipped")
if (e.IsTotalSummary) {
if (e.SummaryProcess == DevExpress.Maui.Core.DataSummaryProcess.Start) {
count = 0;
}
if (e.SummaryProcess == DevExpress.Maui.Core.DataSummaryProcess.Calculate) {
if (!(bool)e.Value)
count++;
e.TotalValue = count;
}
}
}
See Also