Gets or sets a value that indicates whether the user can adjust the width of columns 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 DataGridColumn.Width property.
You can set this resize behavior for individual columns by setting the DataGridColumn.CanUserResize property. If the DataGridColumn.CanUserResize property and the property are both set, a value of false takes precedence over a value of true.