TreeListMenuItemClickEventArgs.SummaryType Property
Gets or sets the summary type which is about to be applied to the column.
Namespace: DevExpress.XtraTreeList
Assembly: DevExpress.XtraTreeList.v24.1.dll
NuGet Packages: DevExpress.Win.Navigation, DevExpress.Win.TreeList
Declaration
Property Value
| Type | Description |
|---|---|
| SummaryItemType | A SummaryItemType enumeration value specifying the type of summary which is about to be applied to the column. |
Available values:
| Name | Description |
|---|---|
| Sum | Calculates the sum of field values within a group of column cells. |
| Min | Retrieves the minimum value within a group of column cells. |
| Max | Retrieves the maximum value within a group of column cells. |
| Count | Calculates the number of nodes within a group of column cells. |
| Average | Calculates the average field value within a group of column cells. |
| Custom | Allows a user to define a custom summary value by handling the TreeList.GetCustomSummaryValue event. |
| None | Summary is not calculated. |
Remarks
Use the SummaryType property to determine the type of summary that a user is going to apply via a menu item click. This property also allows you to specify custom summary type applied to the column where the menu has been activated. The TreeListMenuItemClickEventArgs.SummaryFormat property can be used to format summary values according to the specified summary type.
Use the TreeListMenuItemClickEventArgs.IsFooter and TreeListMenuItemClickEventArgs.MenuType properties to determine whether the footer or row footer summary is being applied. The column to which a summary is applied can be obtained via the TreeListMenuItemClickEventArgs.Column property.
Note: the TreeListMenuItemClickEventArgs.Handled property value must be set to false to allow for the summary.