INSIDE A CELL IN XAMDATADAGRID I MUST SEARCH A VALUE THAT IF IT IS INSERTED IN A TABLE OF A DATABASE I MUST SIGNAL AN ERROR LIKE I CAN MAKE THIS FROM CODE
AND URGENT THANK YOU VERY MUCH TO WHO PUO' TO HELP ME
Hello,
It has been a while since you have made your post, in case you still need support I will be glad to assist you further. I suppose the other community members can benefit from this answer as well. So I have been looking through your post and I suggest you look in the Feature Browser under xamDataGrid / Layout and Behavior / IDataErrorInfo Support section, where you can see how to implement such functionality. In the code behind tab you can see how the ValidatePrice method e.g. is implemented. You always can compare the values with the values from a DataTable.
Feel free to write me if you have further questions.