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Ticket Q394159
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How to get a parent record/row handle in the master/detail grid

created 13 years ago

I have a grid configured as a master/detail grid. When a user sets focus to a detail record, I would like to also set the parent grid record pointer to the master record. Which property will give me the parent's row index so I can select it?
 private void detailGrid_IsKeyboardFocusWithinChanged(object sender, DependencyPropertyChangedEventArgs e)
        {
            GridControl detail = sender as GridControl;
            if (detail.IsKeyboardFocusWithin)
            {
                // want to select the parent record of the master table when any detail record is selected
                // but how to get the row handle of the master record??
                // grid.View.FocusedRowHandle = ??
            }
        }

Show previous comments (1)
DevExpress Support Team 13 years ago

    Hi Shawn,
    The data context of the grid placed within the detail template is a RowData class object that describes the corresponding master row. Therefore you can obtain both the parent row handle and the currently focused row of the master grid as follows:

    C#
    private void detail_IsKeyboardFocusWithinChanged(object sender, DependencyPropertyChangedEventArgs e) {  
    GridControl detail = sender as GridControl;  
    if (detail.IsKeyboardFocusWithin) {  
        RowData data = (RowData)detail.DataContext;  
        int parentRowHandle =  data.RowHandle.Value;  
        int masterFocusedRowHandle = data.View.FocusedRowHandle;  
    }  
}

    I have attached a sample project that illustrates this approach in action. Please try this solution and provide us with your feedback on whether or not it suits your needs.
    Thanks,
    Dmitry

    ?
    Unknown 13 years ago

      Great, that worked perfectly… thanks!

      DevExpress Support Team 13 years ago

        You are welcome!

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