"Variable is used before it has been assigned a value"

[gtjr92]

I am using ASP.Net 2.0
I want my code to look at each control i have, find the data in the control, and then insert it to a DB. This works, except I have only got it to work with a for each loop, which i don't want. Of course this inserts the same data 9 times which is how many rows I have. which i don't want
If I don't use for each then I get the message for my dgi.findcontrol that says "Variable is used before it has been assigned a value". I tried using a few different IF Then statements to no avail. Here is my code. Thanks

  Sub InsertNew(ByVal sender As Object, ByVal e As EventArgs)

        Dim dgi As DetailsViewRow

        For Each dgi In dviewINnew.Rows

            ' Find the Selected Class Name ID Value

            Dim ClassIDup As Integer = CType(dgi.FindControl("ddlClass"), DropDownList).SelectedValue

            Dim Titleup As String = CType(dgi.FindControl("txtTitle"), TextBox).Text
            Dim Descriptionup As String = CType(dgi.FindControl("txtDescription"), TextBox).Text

            Dim TeacherIDup As Integer = CType(dgi.FindControl("ddlTeacher"), DropDownList).SelectedValue

            Dim Totalpointsup As Decimal = CType(dgi.FindControl("txtTotalPoints"), TextBox).Text

            Dim AssignDateup As Date = CType(dgi.FindControl("calDateassign"), Calendar).SelectedDate

            Dim DueDateup As Date = CType(dgi.FindControl("calDuedate"), Calendar).SelectedDate


            'Create a New Insert Paremeter for the above values
            dsNewAssign.InsertParameters.Add("agTitle", Titleup)

            dsNewAssign.InsertParameters.Add("agDescription", Descriptionup)

            'dsClassID.InsertParameters.Add("AssignmentsID", ID)

            dsNewAssign.InsertParameters.Add("agTotalPoints", Totalpointsup)

            dsNewAssign.InsertParameters.Add("agDateAssigned", AssignDateup)

            dsNewAssign.InsertParameters.Add("agDueDate", DueDateup)
            dsNewAssign.InsertParameters.Add("agClassID", ClassIDup)
            dsNewAssign.InsertParameters.Add("agTeacherID", TeacherIDup)
            'Response.Write(dsUpdateAssign.Update)

            'Response.End()


            dsNewAssign.Insert()

            dsNewAssign.InsertParameters.Clear()



        Next

            Response.Redirect("~/Teachers/assignUPD.aspx")


    End Sub

 

[gtjr92]

Now it seems as if my code is working fine. It only inputs one record. My only thought is maybe when I was testing my aspx pages it was inserting data even though it was throwing me errors.