In Login page Assign values to Session Varaible such as Seesion["UserName"]="Some Value" ok now check this session in every page load if it is null then redirect it to login page so that if user log out and click back button he should able to access anything Thanks and Regards Sandeep If If you look at what you do not have in life, you don't have anything, If you look at what you have in life, you have everything... "

You can use the KeyPress event of your textbox field to override the characters that are entered, forcing the character at a certain position in the string to be a particular character. You can also limit the number of characters enetered. The following example is for a date entry field: With YourTextBox If Len(.Text) >= 10 And Not e.KeyChar = ChrW(8) Then MsgBox("Maximum number of input characters is 10!", _ MsgBoxStyle.Information, "Invalid Data Input") Exit Sub ElseIf Len(.Text) = 2 And Not e.KeyChar = ChrW(8) And Not e.KeyChar = ChrW(47) Then .Text = .Text & "/" .Select(.Text.Length, 0) ElseIf Len(.Text) = 5 And Not e.KeyChar = ChrW(8) And Not e.KeyChar = ChrW(47) Then .Text = .Text & "/" .Select(.Text.Length, 0) Else End If End With I use something similar to this to validate entry on all my fields. It is used in combination with the TextChanged and Validating events. I have stripped out code for setting errorproviders etc.. Steve

The Choose controls option[^] The masked textbox control[^] also what version visual basic are you using? maskedtextbxo is deffinatly in visual basic 2005, but i don't know about other versions sorry if i was a bit abstract! Thanks, Terence