CODEWITHSUNDEEP
sqlvb.netstored-proceduresparametersnull
Nandini
Nandini

Reputation: 393

How can I pass a null value for date in vb.net to sql stored procedure?

My application is asp.net with vb.

In my page I have a textbox for passing date. If I didn't enter date and on clicking submit, I have to pass null value to the stored procedure.

I tried following codes such as DBNull.Value and DateTime.MinValue. In that case instead of null, "#12:00:00#" is passing. I have to pass Null.

Upvotes: 8

Views: 58577

Answers (2)

Peternac26
Peternac26

Reputation: 51

Dim pflt_dateto As SqlParameter = cmd.CreateParameter
        pflt_dateto.Direction = ParameterDirection.Input
        pflt_dateto.DbType = SqlDbType.Int
        pflt_dateto.IsNullable = True
        pflt_dateto.ParameterName = "flt_dateto"

        If String.IsNullOrEmpty(dateto) Then
            pflt_dateto.SqlValue = DBNull
        Else
            pflt_dateto.SqlValue = dateto
        End If

        cmd.Parameters.Add(pflt_dateto)

Since you set up the parameter nullable, the error will disappear. Now the issue is that .NET pass null integer as 0 so we need to deal with that.

Chao

Upvotes: 0

Binoj Antony
Binoj Antony

Reputation: 16196

Just assign the parameter the value DBNull.Value

[EDIT]

If you are using SqlParameter (thanks Jon) then you can set it like this if it gives any error

parameter.Value = DBNull.Value

Upvotes: 21

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