Winform C# : Set default value to particular column in datagrid

Winform C# : Set default value to particular column in datagrid

Winform C#:
I have 3 columns in dataGrid in form such as ID,Name,Date. I have to set
particular value for Date column on each row on button click event.
I tried for Default property of datagrid but it will set default value
when new row add to datagrid.
Thanks.