my BLL contains an EmployeeInfo.cs class with the following property declaration:

private decimal? _fee;

public decimal? Fee{
   get { return _fee;}
   set {_fee = value;}
}

On my .ascx page I have an ObjectDataSource bound to this class and a FormView control bound to the ObjectDataSource. When I try to insert a record via the FormView control and don't enter a value for Fee, I get an error saying: " is not a valid value for Decimal". The Fee field in the database table does accept null values.  I was hoping that making the _fee variable nullable would solve the problem but it didn't. I'm sure others must have encountered this because it's such a basic thing to want to do. Can anyone help me modify my code so that I don't get the error?

Thanks, Stuart. Actually, the error was being raised when the FormView control tried to create a new object in the ObjectDataSource and was attempting to assign an empty string to a decimal? property. I fixed the problem by writing code in the FormView OnItemInserting event to catch the empty string and change it to null. Here's my code:

void FormView1_ItemInserting(object sender, FormViewInsertEventArgs e)//do the check for empty strings instead of decimals here and make the value null if necessary

protected

{

}