TcxDataControllerGroups.ChildCount Property

Returns the number of children for a specified data group.

Declaration

property ChildCount[DataGroupIndex: TcxDataGroupIndex]: Integer read;

Property Value

Type
Integer

Remarks

The DataGroupIndex parameter specifies the index of a data group whose number of children is returned. The ChildCount property returns the number of child data groups. If a specified data group corresponds to the last grouping item it has no child data groups. In this case the ChildCount property returns the number of data rows in the group.

To return the number of data groups at level 0 you should pass value -1 for the DataGroupIndex parameter.

Use the ChildDataGroupIndex property to iterate the child data groups.

The following image demonstrates five data groups.

For this sample grid control:

ChildCount[-1] returns 2 (there are data groups 0 and 2 at level 0)

ChildCount[0] returns 1 (data group 0 owns only data group 1)

ChildCount[4] returns 3 (data group 4 owns three data rows)