How to pass null integer value storedprocedure?

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I want to pass null integer value into database, from front end code behind as parameter. So how can i pass null values can any one help me please?

C#

cmd.Parameters.Add("@HospitalId", SqlDbType.Int).Value = int.Parse(ddlHospital.SelectedValue.ToString());

I'm using this but i'm getting error on this cannot convert string value into in32

Posted 3-Aug-13 1:21am

Updated 3-Aug-13 1:27am

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Comments

[no name] 3-Aug-13 7:29am

If your field accepts null values you can try setting your parameter to DbNull.

Aboobakkar Siddeq D U 3-Aug-13 7:33am

Ya my field allows null values, but how can i pass dbnull value? please help me

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André Kraak · Answer 1 · 2013-08-03T01:33:00

You can use DBNull.Value[^] to set a null value.

C#

cmd.Parameters.Add("@HospitalId", SqlDbType.Int).Value = DBNull.Value;

You could also make the parameter of the stored procedure default to NULL[^], that way you would not need to set the parameter if no value is needed.

Posted 3-Aug-13 1:33am

Comments

Aboobakkar Siddeq D U 3-Aug-13 7:37am

Still getting same error
Failed to convert parameter value from a String to a Int32.