I need the Expand / Collapse for RowDetailsTemplate

Question

I have a DataGrid. It has DataGrid.RowDetailsTemplate. When a button is clicked it should Expand / Collapse; how would I do that?

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Answer 1

Include Collapsed and expanded events as below

In the code behind

 private void exp_Collapsed(object sender, RoutedEventArgs e)
        {
            this.dataGrid1.RowDetailsVisibilityMode = DataGridRowDetailsVisibilityMode.Collapsed;
        }

        private void exp_Expanded(object sender, RoutedEventArgs e)
        {
            this.dataGrid1.RowDetailsVisibilityMode = DataGridRowDetailsVisibilityMode.VisibleWhenSelected;
        }