CustomSummaryEventArgs.FieldValue Property
Gets the processed field value.
Namespace: DevExpress.Mobile.DataGrid
Assembly: DevExpress.Mobile.Grid.v18.2.dll
Declaration
Property Value
| Type | Description |
|---|---|
| Object | An object specifying the processed field value. |
Remarks
Important
This documentation topic describes legacy technology. We no longer develop new functionality for the GridControl and suggest that you use the new DataGridView control instead.
Default summary calculation algorithms process values that belong to a field specified by a summary item. When calculating a summary value manually, this column’s values are passed to the event GridControl.CalculateCustomSummary handler via the FieldValue property. Use this property to access the processed value immediately and update the CustomSummaryEventArgs.TotalValue property value accordingly.
Note that sometimes, you may need to include several fields in your summary calculations. In this case, you will need to use the CustomSummaryEventArgs.Row parameter to identify the row being processed and access its values within the desired fields, or call the CustomSummaryEventArgs.GetValue method with the specified field name.
Example
This example shows how to use the GridControl.CalculateCustomSummary event to create a custom summary that counts the total number of data rows whose cells in the Shipped column (SwitchColumn) contain false.