How to programmatically access Control in WPF Grid by row and column index?

Question

Once Controls have been added to a WPF Grid, is there a way to programmatically access them by row and/or column index? Something along the lines of:

 var myControl = (object)MyGrid.GetChild(int row, int column);

... where GetChild is the method I wish I had!

user_10158524 · Answer

you could just give your grid column/row a name

and access it programmatically by calling it and using "."

MainGridBackground.Background = canvasUCInstance.rectanglePreview.Fill;