a web part consisting a datagrid with Columns viz., A,B,C,D,E,F,G and H. in mysite.consists of 20 users.now my question is how to disable the column E for 5 users.(the rest 15 can seethat column)
If you're using the asp.net gridview, you can catch the RowCreated eventand hide that particular cell depending on the user. It's not reallyspecific to SharePoint. You might want to check out the MicrosoftASP.Net group for more info or further questions.