title: DataGridCell edit mode issue in WPF
body: <p>Here is the problem:</p>
  
  <p>When we want to edit a <code>DataGridCell</code>, we have to select the <code>DataGridRow</code> at first. I mean for editing a <code>DataGridCell</code> outside the <code>DataGridRow.Current</code>, we need to 1. <code>Click</code> the cell to select row, 2. <code>DoubleClick</code> the cell to go to edit mode. My question is how can we go to edit mode just with a single click? Is it possible?</p>