Question

I want to save null values to a decimal column(allows nulls on db) on a wpf datagrid (with autogenerate columns).

It doesn’t allow me to save nulls and shows red error box.

Answer 1

Just add this code in AutogeneratingColumn event:

if (e.Column.ToString() ==
“System.Windows.Controls.DataGridTextColumn”)
{
(((System.Windows.Controls.DataGridBoundColumn)(e.Column)).Binding).TargetNullValue
= string.Empty;
}