I have a RadGrid with filter enabled in the headercontextmenu
In this grid I have several columns with DataType double.
In the headercontextmenu for a column with datatype double it is possible to enter a string like xx.
I get the next error when I enter xx:
No property or field 'xx' exists in type 'DataRowView'
This is indeed a logical error because xx is not a valid double value.
How can I allow only numbers and the decimalseparator to be entered in the filter?