show invalid field in a datagrid

[Angela Chen]

I need to put a error mark beside any field that has an invalid value .In
windows form , I can use errorprovider,but how to do it in asp.net web form?
Thanks

 

[Saravana]

Have image control next to your field, depending upon the field value you
can set the visible property of that control to false or true. For more
details on how to set visible property value based on field value, check out
"Manipulating DataSource Values while binding to DataGrid" section in this
article
http://www.microsoft.com/india/msdn/articles/SolutionstoTopFourQuestions.aspx