Gets or sets a value that indicates whether the user can adjust the column width by using the mouse.
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
This property does not affect whether column widths can be changed programmatically, such as by changing the Width property.
You can set this resize behavior for all columns by setting the DataGrid.CanUserResizeColumns property. If the property and the DataGrid.CanUserResizeColumns property are both set, a value of false takes precedence over a value of true.