problem with empty field in gridview when updating

Question

Hi

 

When editing a row of a gridview, some fields can remain empty.

But with this code, i get the error (if field 'name" remained empty) when updating: "Object reference not set to an instance of an object.":

protected void GridView1_RowUpdating(object sender, System.Web.UI.WebControls.GridViewUpdateEventArgs e)

string name;

name = e.NewValues["name"].ToString();

I tried to prevent that with this code:

if (string.IsNullOrEmpty(e.NewValues["name"].ToString()) == true)

name = e.NewValues["name"].ToString();

else

name ="";

But I get the same error (at line if ...)

 

Thanks for help.

V