how to pass null in c#?


I am trying to pass a null value as string to a function that will send to a sp.

            String v1;
            String v2;
            AssignedName = e.CommandArgument.ToString();
            Activity = null;

            loadActivity(sqlConnection, v1, v2);

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I know my sp works. also, if v2 is not null, it works fine. Once I use null, I get the error v2 was not supplied. Any ideas? thanks
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Dorababu MSenior Software EngineerCommented:
For the procedure you need to pass the number of arguments whether they are optional from code, if you want to make an optional parameter for function then you can change your function to
loadActivity(string con,string v1,string v2=null)

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mcrmgAuthor Commented:
thank you
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