Skip to main content

DevExpress v24.2 Update — Your Feedback Matters

Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

Take the survey Not interested

GridView.ExpandMasterRow(Int32) Method

Expands the specified master row.

Namespace: DevExpress.XtraGrid.Views.Grid

Assembly: DevExpress.XtraGrid.v24.2.dll

NuGet Packages: DevExpress.Win.Grid, DevExpress.Win.Navigation

#Declaration

public void ExpandMasterRow(
    int rowHandle
)

#Parameters

Name Type Description
rowHandle Int32

An integer value identifying the master row by its handle.

#Remarks

The ExpandMasterRow method can be used as an alternative to the GridView.SetMasterRowExpanded method, which requires an additional parameter specifying how the row’s expanded state should be changed.

The GridOptionsDetail.AllowExpandEmptyDetails option controls whether empty details can be expanded. If this option is set to false and the default detail is empty, the ExpandMasterRow method will not expand this detail. Instead, the first non-empty detail will be expanded.

Before a master row is expanded, the GridView.MasterRowExpanding event is raised. If the event handler prohibits expanding the row, the ExpandMasterRow method does nothing. If the row is successfully expanded, the GridView.MasterRowExpanded event is raised.

Please refer to the Master-Detail Relationships topic, for additional information.

Note

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

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ExpandMasterRow(Int32) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

See Also