Procedure or function 'REGSTD' expects parameter '@FIRSTNAME', which was not supplied

[mboHassan]

This is the code iam using
.............

  Dim con As New SqlConnection
        con.ConnectionString = " Data Source=(local)\sqlexpress; initial Catalog=SEC; Integrated security=true;   "
        con.Open()
        Dim cmd As New SqlCommand()
        cmd.CommandText = "REGSTD"
        cmd.CommandType = Data.CommandType.StoredProcedure
        cmd.Parameters.AddWithValue("STUDENT_ID", Txtid.Text)
        cmd.Parameters.AddWithValue("STUDENT_FNAME", Txtfname.Text)
        cmd.Parameters.AddWithValue("STUDENT_SNAME", TxtSName.Text)
        cmd.Parameters.AddWithValue("STUDENT_LNAME", TxtTName.Text)
        cmd.Parameters.AddWithValue("STUDENT_GNAME", TxtGName.Text)
        cmd.Parameters.AddWithValue("GENDER", DropDownListgender.SelectedItem.Value)
        cmd.Parameters.AddWithValue("PLACEOFBIRTH", TxtPOB.Text)
        cmd.Parameters.AddWithValue("MOTHER_NAME", TxtFMotherName.Text)
        cmd.Parameters.AddWithValue("School", DropDownListSchool.SelectedItem.Value)
        cmd.Parameters.AddWithValue("Region", DropDownListRegion.SelectedItem.Value)
        cmd.Parameters.AddWithValue("District", DropDownListDistrict.SelectedItem.Value)
        cmd.Parameters.AddWithValue("STREAM", DropDownListStream.SelectedItem.Value)
        cmd.Parameters.AddWithValue("BATCH", TxtBatch.Text)
        cmd.Parameters.AddWithValue("Photo", FileUploadPhoto.FileName)
        cmd.Parameters.AddWithValue("Approval", TxtApproval.Text)
        cmd.Parameters.AddWithValue("ApprovedDate", TxtApprovalDate.Text)
        cmd.Connection = con
        Label19.Text = cmd.ExecuteScalar
 
        con.Close

[Rabbit]

Please use code tags when posting code.

That error message can't be clearer. It's looking for the parameter '@FIRSTNAME', which you didn't supply.