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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
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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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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.
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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.
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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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