GridView.CanExpandMasterRowEx(Int32, Int32) Method

Indicates whether a master row can be expanded to display a particular detail.

Namespace: DevExpress.XtraGrid.Views.Grid

Assembly: DevExpress.XtraGrid.v21.1.dll


public virtual bool CanExpandMasterRowEx(
    int rowHandle,
    int relationIndex


Name Type Description
rowHandle Int32

An integer value containing master row handle.

relationIndex Int32

A zero-based integer specifying the index of the relationship in the data source.


Type Description

true if the specified master row can be expanded; otherwise, false.


The CanExpandMasterRowEx method returns false in the following cases:

The CanExpandMasterRowEx method’s return value specifies whether calling the GridView.SetMasterRowExpandedEx method with the same parameters will be a success. This method also affects visual elements’ availability. If false is returned for a particular detail, this detail’s link is not displayed within a detail tooltip and the corresponding detail tab is invisible.


Detail pattern Views do not contain data and they are never displayed within XtraGrid. So, the CanExpandMasterRowEx member must not be invoked for these Views. The CanExpandMasterRowEx member can only be used with real Views that are displayed within the Grid Control. The real Views with which an end-user interacts at runtime can be accessed using the following methods.

See Also