title: WPF Datagrid SelectionChanged event is triggering Multiple times while loading the rows
body: <p>When i use DataGridComboBoxColumn in my WPF DataGrid, the DataGrid SelectionChanged event is triggering multiple times based on the number of rows while loading the rows in the WPF DataGrid.</p>
  
  <p>How can i stop this? Because of this I am facing Performance issue.</p>