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ASP.NET 3.5 Linq insert a child record LISTVIEW

Posted on 2009-04-02
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Last Modified: 2013-11-26
I am trying to build an application Visual Studio using VB SQL server 2008 and LINQ. I have a simple one to many structure and I wish to INSERT items into the child database using the Listview Control and LINQ.
I am using the InsertItems template etc. I can enter data but when I click on insert nothing is happening. I have done a databing in the vb code behind, am I missing something?
This is driving me nuts. I also need to inert a value into the FK of the child database. I am getting no error messages, but nothing is being written to the database.
Can anyone help
Thanks

TrilobyteMKR
<asp:LinqDataSource ID="LinqDataSource2" runat="server" 
        ContextTypeName="DataClassesDataContext" EnableDelete="True" 
        EnableInsert="True" EnableUpdate="True" 
        select="New
         with consID =linqdatasource1"
         TableName="Tbl_ExtraNotes">
    </asp:LinqDataSource>
 
<asp:ListView ID="ListView1" runat="server" DataKeyNames="ID" 
                    DataSourceID="LinqDataSource2" InsertItemPosition="LastItem">
                    <ItemTemplate>
                        <tr style="background-color: #FFFBD6;color: #333333;">
                            <td>
                                <asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
                            </td>
                            <td>
                                <asp:Label ID="IDLabel" runat="server" Text='<%# Eval("ID") %>' />
                            </td>
                            <td>
                                <asp:Label ID="DateAddedLabel" runat="server" Text='<%# Eval("DateAdded") %>' />
                            </td>
                            <td>
                                <asp:Label ID="AddedByLabel" runat="server" Text='<%# Eval("AddedBy") %>' />
                            </td>
                            <td>
                                <asp:Label ID="NotesLabel" runat="server" Text='<%# Eval("Notes") %>' />
                            </td>
                            <td>
                                <asp:Label ID="stampLabel" runat="server" Text='<%# Eval("stamp") %>' />
                            </td>
                            <td>
                                <asp:Label ID="ConsIDLabel" runat="server" Text='<%# Eval("ConsID") %>' />
                            </td>
                            <td>
                                <asp:Label ID="DateNextActionLabel" runat="server" 
                                    Text='<%# Eval("DateNextAction") %>' />
                            </td>
                            <td>
                                <asp:Label ID="NextActionOnLabel" runat="server" 
                                    Text='<%# Eval("NextActionOn") %>' />
                            </td>
                            <td>
                                <asp:Label ID="Tbl_ConsumerCallLabel" runat="server" 
                                    Text='<%# Eval("Tbl_ConsumerCall") %>' />
                            </td>
                        </tr>
                    </ItemTemplate>
                    <AlternatingItemTemplate>
                        <tr style="background-color: #FAFAD2;color: #284775;">
                            <td>
                                <asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
                            </td>
                            <td>
                                <asp:Label ID="IDLabel" runat="server" Text='<%# Eval("ID") %>' />
                            </td>
                            <td>
                                <asp:Label ID="DateAddedLabel" runat="server" Text='<%# Eval("DateAdded") %>' />
                            </td>
                            <td>
                                <asp:Label ID="AddedByLabel" runat="server" Text='<%# Eval("AddedBy") %>' />
                            </td>
                            <td>
                                <asp:Label ID="NotesLabel" runat="server" Text='<%# Eval("Notes") %>' />
                            </td>
                            <td>
                                <asp:Label ID="stampLabel" runat="server" Text='<%# Eval("stamp") %>' />
                            </td>
                            <td>
                                <asp:Label ID="ConsIDLabel" runat="server" Text='<%# Eval("ConsID") %>' />
                            </td>
                            <td>
                                <asp:Label ID="DateNextActionLabel" runat="server" 
                                    Text='<%# Eval("DateNextAction") %>' />
                            </td>
                            <td>
                                <asp:Label ID="NextActionOnLabel" runat="server" 
                                    Text='<%# Eval("NextActionOn") %>' />
                            </td>
                            <td>
                                <asp:Label ID="Tbl_ConsumerCallLabel" runat="server" 
                                    Text='<%# Eval("Tbl_ConsumerCall") %>' />
                            </td>
                        </tr>
                    </AlternatingItemTemplate>
                    <EmptyDataTemplate>
                        <table runat="server" 
                            style="background-color: #FFFFFF;border-collapse: collapse;border-color: #999999;border-style:none;border-width:1px;">
                            <tr>
                                <td>
                                    No data was returned.</td>
                            </tr>
                        </table>
                    </EmptyDataTemplate>
                    <InsertItemTemplate>
                        <tr style="">
                            <td>
                                <asp:Button ID="InsertButton" runat="server" CommandName="Insert" 
                                    Text="Insert" />
                                <asp:Button ID="CancelButton" runat="server" CommandName="Cancel" 
                                    Text="Clear" />
                            </td>
                            <td>
                                &nbsp;</td>
                            <td>
                                <asp:TextBox ID="DateAddedTextBox" runat="server" 
                                    Text='<%# Bind("DateAdded") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="AddedByTextBox" runat="server" Text='<%# Bind("AddedBy") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="NotesTextBox" runat="server" Text='<%# Bind("Notes") %>' />
                            </td>
                            <td>
                                &nbsp;</td>
                            <td>
                                <asp:TextBox ID="ConsIDTextBox" runat="server" Text='<%# Bind("ConsID") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="DateNextActionTextBox" runat="server" 
                                    Text='<%# Bind("DateNextAction") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="NextActionOnTextBox" runat="server" 
                                    Text='<%# Bind("NextActionOn") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="Tbl_ConsumerCallTextBox" runat="server" 
                                    Text='<%# Bind("Tbl_ConsumerCall") %>' />
                            </td>
                        </tr>
                    </InsertItemTemplate>
                    <LayoutTemplate>
                        <table runat="server">
                            <tr runat="server">
                                <td runat="server">
                                    <table ID="itemPlaceholderContainer" runat="server" border="1" 
                                        style="background-color: #FFFFFF;border-collapse: collapse;border-color: #999999;border-style:none;border-width:1px;font-family: Verdana, Arial, Helvetica, sans-serif;">
                                        <tr runat="server" style="background-color: #FFFBD6;color: #333333;">
                                            <th runat="server">
                                            </th>
                                            <th runat="server">
                                                ID</th>
                                            <th runat="server">
                                                DateAdded</th>
                                            <th runat="server">
                                                AddedBy</th>
                                            <th runat="server">
                                                Notes</th>
                                            <th runat="server">
                                                stamp</th>
                                            <th runat="server">
                                                ConsID</th>
                                            <th runat="server">
                                                DateNextAction</th>
                                            <th runat="server">
                                                NextActionOn</th>
                                            <th runat="server">
                                                Tbl_ConsumerCall</th>
                                        </tr>
                                        <tr ID="itemPlaceholder" runat="server">
                                        </tr>
                                    </table>
                                </td>
                            </tr>
                            <tr runat="server">
                                <td runat="server" 
                                    style="text-align: center;background-color: #FFCC66;font-family: Verdana, Arial, Helvetica, sans-serif;color: #333333;">
                                </td>
                            </tr>
                        </table>
                    </LayoutTemplate>
                    <EditItemTemplate>
                        <tr style="background-color: #FFCC66;color: #000080;">
                            <td>
                                <asp:Button ID="UpdateButton" runat="server" CommandName="Update" 
                                    Text="Update" />
                                <asp:Button ID="CancelButton" runat="server" CommandName="Cancel" 
                                    Text="Cancel" />
                            </td>
                            <td>
                                <asp:Label ID="IDLabel1" runat="server" Text='<%# Eval("ID") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="DateAddedTextBox" runat="server" 
                                    Text='<%# Bind("DateAdded") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="AddedByTextBox" runat="server" Text='<%# Bind("AddedBy") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="NotesTextBox" runat="server" Text='<%# Bind("Notes") %>' />
                            </td>
                            <td>
                                <asp:Label ID="stampLabel1" runat="server" Text='<%# Eval("stamp") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="ConsIDTextBox" runat="server" Text='<%# Bind("ConsID") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="DateNextActionTextBox" runat="server" 
                                    Text='<%# Bind("DateNextAction") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="NextActionOnTextBox" runat="server" 
                                    Text='<%# Bind("NextActionOn") %>' />
                            </td>
                            <td>
                                <asp:TextBox ID="Tbl_ConsumerCallTextBox" runat="server" 
                                    Text='<%# Bind("Tbl_ConsumerCall") %>' />
                            </td>
                        </tr>
                    </EditItemTemplate>
                    <SelectedItemTemplate>
                        <tr style="background-color: #FFCC66;font-weight: bold;color: #000080;">
                            <td>
                                <asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
                            </td>
                            <td>
                                <asp:Label ID="IDLabel" runat="server" Text='<%# Eval("ID") %>' />
                            </td>
                            <td>
                                <asp:Label ID="DateAddedLabel" runat="server" Text='<%# Eval("DateAdded") %>' />
                            </td>
                            <td>
                                <asp:Label ID="AddedByLabel" runat="server" Text='<%# Eval("AddedBy") %>' />
                            </td>
                            <td>
                                <asp:Label ID="NotesLabel" runat="server" Text='<%# Eval("Notes") %>' />
                            </td>
                            <td>
                                <asp:Label ID="stampLabel" runat="server" Text='<%# Eval("stamp") %>' />
                            </td>
                            <td>
                                <asp:Label ID="ConsIDLabel" runat="server" Text='<%# Eval("ConsID") %>' />
                            </td>
                            <td>
                                <asp:Label ID="DateNextActionLabel" runat="server" 
                                    Text='<%# Eval("DateNextAction") %>' />
                            </td>
                            <td>
                                <asp:Label ID="NextActionOnLabel" runat="server" 
                                    Text='<%# Eval("NextActionOn") %>' />
                            </td>
                            <td>
                                <asp:Label ID="Tbl_ConsumerCallLabel" runat="server" 
                                    Text='<%# Eval("Tbl_ConsumerCall") %>' />
                            </td>
                        </tr>
                    </SelectedItemTemplate>
                </asp:ListView>
 
VB CODE ***********************************************************************
 Protected Sub ListView1_ItemInserted(ByVal sender As Object, _
                ByVal e As System.Web.UI.WebControls.ListViewInsertedEventArgs) _
                Handles ListView1.ItemInserted
        If e.Exception IsNot Nothing Then
            lblError.Text = "A database error has occurred. " _
            & e.Exception.Message
            e.ExceptionHandled = True
        Else
            ListView1.DataBind()
        End If
    End Sub

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Question by:TrilobyteMKR
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1 Comment
 
LVL 83

Accepted Solution

by:
CodeCruiser earned 500 total points
ID: 24058659
Following is what a Microsoft article says

"If you want the LinqDataSource control to automatically generate update commands, you cannot set the Select property. When the Select property is set, the LinqDataSource control returns an object that is an instance of a dynamic class. It is not an instance of the class that represents the database table. Therefore, the dynamic class cannot infer how to update the values in the database table. "

http://msdn.microsoft.com/en-us/library/bb547113.aspx
http://weblogs.asp.net/scottgu/archive/2007/07/16/linq-to-sql-part-5-binding-ui-using-the-asp-linqdatasource-control.aspx
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