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Many times, it is tough to traverse up the control tree to reach the parent control. The best example is of a control in a template column of a grid.
The most common way would be go reverse, traversing all the parents, until you find the real one. But this isn't efficient. For example, a TextBox control in a TableRow, would use the following code to reach its Row Item.
//1st Parent is the Cell, and 2nd is the TableRow
DataGridItem grdPrntItem = (DataGridItem) txtBox1.Parent.Parent;
Efficient way of doing this is like this,
//this would work always, no matter how deep in the control tree the actual control is.
DataGridItem grdPrntItem = (DataGridItem) txtBox1.Container;
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