WPF获取元素的ColumnSpan

Question

It's really easy to set column span for an UIElement in a grid.

Grid.SetColumnSpan(extBorder, gridFormular.ColumnDefinitions.Count());

but what's about reading an element's ColumnSpan? How to do that?

Answer 1

You can use FrameworkElement.GetValue on the dependency property identifier for the column span :

var columnSpan = (int)extBorder.GetValue(Grid.ColumnSpanProperty);

This same strategy works for retrieving the value of any dependency property which exists on the element.

Answer 2

除了使用六个变量所示的GetValue（Grid.ColumnSpanProperty）之外，您还可以使用Grid.GetColumnSpan（） 。