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How do I get selectevalue from DDL into ODS insert?

Posted on 2010-09-15
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Last Modified: 2012-05-10
I have a form with an objectdatasource in it and three simple controls. I want to insert the selectedvalue from a databound dropdownlist into the objectdatasouce insert parameter "CommitteeID". I've tried several different ways and it's just not working. This is the latest iteration:

EVerything else works, but the selected value of the dropdownlist. It's almost like the insert happens in the page cycle prior to the dropdownlist selectedvalue coming back from viewstate. Please help. This is driving me crazy. This should be VERY simple.
<table style="width: 100%">

        <tr>

            <th>

                Committee:

            </th>

            <td>

                <asp:DropDownList ID="ddlCommittee" runat="server" DataSourceID="odsCommittees" DataTextField="CommitteeName"

                    DataValueField="CommitteeID" EnableViewState="true">

                </asp:DropDownList>

            </td>

        </tr>

        <tr>

            <th>

                Question:

            </th>

            <td>

                <asp:TextBox ID="txtQuestion" runat="server" Height="250px" TextMode="MultiLine"

                    Width="100%"></asp:TextBox>

                <br />

                <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="Please enter your question above."

                    ControlToValidate="txtQuestion" Display="Dynamic"></asp:RequiredFieldValidator>

            </td>

        </tr>

        <tr>

            <th>

                Public?

            </th>

            <td>

                <asp:CheckBox ID="cbPublic" runat="server" />

            </td>

        </tr>

        <tr>

            <td colspan="2">

                <asp:Button ID="Button1" runat="server" Text="Send" CommandName="Insert" />

            </td>

        </tr>

    </table>

    <asp:ObjectDataSource ID="odsCommittees" runat="server" FilterExpression="IsActiveCommittee=1"

        OldValuesParameterFormatString="{0}" SelectMethod="GetData" TypeName="SapaDAL.CommitteesTableAdapters.CommitteesTableAdapter">

    </asp:ObjectDataSource>

    <asp:ObjectDataSource ID="odsQuestion" runat="server" 

        InsertMethod="AskQuestion" OldValuesParameterFormatString="original_{0}" 

        SelectMethod="GetQuestionByRowGuid" TypeName="SapaDAL.QandADAL+QandA">

        <SelectParameters>

            <asp:Parameter DbType="Guid" Name="RowGuid" />

        </SelectParameters>

        <InsertParameters>

            <asp:Parameter DbType="Guid" Name="RowGuid" />

            <asp:ControlParameter ControlID="txtQuestion" Name="Question" 

                PropertyName="Text" Type="String" />

            <asp:ControlParameter ControlID="ddlCommittee" Name="CommitteeID" 

                PropertyName="SelectedValue" Type="Int32" />

            <asp:Parameter Name="Questioner" Type="Int32" />

            <asp:ControlParameter ControlID="cbPublic" Name="AllowPublic" 

                PropertyName="Checked" Type="Boolean" />

        </InsertParameters>

    </asp:ObjectDataSource>









 Private _newRowID As Guid

    Private _notificationSubject As String = "SAPA Question Submission"

    Private _notificationMsg1 As String = "Your question was successfully submitted to SAPA at " & Date.UtcNow & " UTC. You will be notified via email and the SAPA website when an answer has been submitted. Thank you for you participation."



    Private Sub Notify()

        If _newRowID <> Guid.Empty Then

            ' send to user

            Dim sbp As New SapaBasePage

            sbp.SendNotificationToCurrentUser(_notificationSubject, _notificationMsg1)

            ' send to sapa

            Dim _nh As New NotificationHelper.QandA

            _nh.SendQuestionAdminEmail(_newRowID)

        End If

    End Sub



    Protected Sub ddlCommittee_DataBound(ByVal sender As Object, ByVal e As System.EventArgs)

        Dim cb As ASPxComboBox = CType(sender, ASPxComboBox)

        ' cb.Items.Insert(0, New ListEditItem("General SAPA Question", "0"))



        If Not (Page.IsPostBack Or Page.IsCallback) Then

            If Request.QueryString("ComID") IsNot Nothing Then

                Dim ComID As Integer = 0

                Try

                    Dim selCom As Integer = CInt(Request.QueryString("ComID"))

                    cb.SelectedIndex = cb.Items.FindByValue(selCom).Index

                Catch ex As Exception

                    ' don't log

                    cb.SelectedIndex = 0

                End Try

            Else

                cb.SelectedIndex = 0

            End If

        End If

    End Sub



    Private Sub odsQuestion_Inserted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ObjectDataSourceStatusEventArgs) Handles odsQuestion.Inserted

        If e.Exception IsNot Nothing Then

            JavaHelper.Alert.Show(e.Exception.Message)

            e.ExceptionHandled = True

        Else

            Notify()

            JavaHelper.Alert.Show("Your question was submitted to SAPA. You will be notified via email and this site when SAPA has posted an answer. Thank you for your participation.")

        End If

    End Sub



    Private Sub odsQuestion_Inserting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ObjectDataSourceMethodEventArgs) Handles odsQuestion.Inserting

        e.InputParameters("Questioner") = CurrentSapaUser.Users(0).EmpNo

        _newRowID = Guid.NewGuid

        e.InputParameters("RowGuid") = _newRowID

    End Sub



    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click

        If Page.IsValid And ddlCommittee.SelectedIndex > -1 Then

            odsQuestion.Insert()

        End If

    End Sub

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Question by:dacIT
  • 4
6 Comments
 
LVL 8

Expert Comment

by:Mohit Vijay
ID: 33688581
Let me assume, you have name of dropdown as ddl1, so

ddl1.selectedItem.value will give you value part and
ddl1.selectedItem.text will give you text part.
0
 
LVL 3

Expert Comment

by:vusov
ID: 33690622
Use SelectedValue property. So will have this code
<asp:ControlParameter ControlID="ddlCommittee" Name="CommitteeId" 

                PropertyName="SelectedValue"  />

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0
 
LVL 7

Author Comment

by:dacIT
ID: 33693286
Thanks, but as you can see from the posted code, that's what I'm doing.
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LVL 7

Author Comment

by:dacIT
ID: 33717584
Whoops. I guess my code DOESN'T have the selectedvalue in the markup, it was in there when I tested it however. I just tested again and it's sending NULL as the parameter value in the ODS even though the DDL does have a value selected. I'm stumped. This should be pretty straight forward.
0
 
LVL 7

Author Comment

by:dacIT
ID: 33717625
Actually, it is in there, it's the control parameter in the ODS insert section. Still doesn't work.
0
 
LVL 7

Accepted Solution

by:
dacIT earned 0 total points
ID: 33717857
Well, I figured out the problem. It was the viewstate was in fact disabled in the inherited base page. Once I reenabled it, everything worked as I would expect. Thanks for everyone's input.
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