validation fo datagrid

how do we make a validation for the datagrid..let say,when we edit the value in the datagrid,let say the column for date,we want to mak sure only the date format is inserted,

for the textbox control the validation we can take from the toolbox,requiredfieldvalidator, but how do we do 4 datagrid?

Hi,shah_idah82:

It's the same. You can set the column to be a template field and add a TextBox or other controls in it as well as the validation controls. Then you can do the same process as adding a Validation control to TextBox.