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BOOK: Beginning ASP.NET 4.5 : in C# and VB
This is the forum to discuss the Wrox book Beginning ASP.NET 4.5: in C# and VB by Imar Spaanjaars; ISBN: 978-1-118-31180-6
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Old March 10th, 2015, 05:24 AM
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Default Beginning ASP.NET 4.5: in C# and VB - Chapter 14 - Try it Out Page518

Hi,

I tried out the Try It Out - A Simple EntityDataSource Application (on page 518 to 522), got stuck on step 6 to configure the entity data source, as mentioned in the Note to step 6, I get an error about incorrect metadata, tried the steps recommended in the note in vain too. May I know how could I overcome this problem? thanks a lot in advance. the following is the code:

<%@ Page Title="Create New Photo Album" Language="VB" MasterPageFile="~/MasterPages/Frontend.master" AutoEventWireup="false" CodeFile="NewPhotoAlbum.aspx.vb" Inherits="_NewPhotoAlbum" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="cpMainContent" Runat="Server">
<asp:DetailsView ID="DetailsView1" runat="server" DataSourceID="EntityDataSource1" Height="50px" Width="125px" AllowPaging="True">
<Fields>
<asp:CommandField ShowInsertButton="True" />
</Fields>
</asp:DetailsView>
<asp:EntityDataSource ID="EntityDataSource1" runat="server" ConnectionString="name=PlanetWroxEntities" DefaultContainerName="PlanetWroxEntities" EntitySetName="PhotoAlbums" OnInserted="EntityDataSource1_Inserted">

</asp:EntityDataSource>
</asp:Content>

Last edited by hclee5; March 10th, 2015 at 05:28 AM..
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Old March 11th, 2015, 11:12 AM
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Hi there,

Which version of Visual Studio are you using?

Imar
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Imar Spaanjaars
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
and Beginning ASP.NET 4 : in C# and VB.
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Old March 12th, 2015, 08:39 PM
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Hi Imar,

I am using Visual Studio 2013 Express For Web. The book actually recommended using 2012 version. For information, after I posted the above thread, I actually manage to complete the Try it Out exercise on Page518 by modifying the code in the markup view by following the sample code provided. So now, I try to work on the TRY IT OUT - Inserting and deleting data with ListView Control on Page 526, get stuck on step 2 to add the PlanetWroxEntites to the list view control, the same Meta error pop up again.

thanks for the help in advance (btw, I really enjoy working on your book on ASP.NET)

Last edited by hclee5; March 12th, 2015 at 08:48 PM..
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Old March 20th, 2015, 12:47 AM
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It is currently a known issue.
https://connect.microsoft.com/Visual...ityframework-6

As a work around, you can change the 2012 to 2008 in the edmx file. You need to open it in notepad.

http://breakthatdown.blogspot.com/20...rol-error.html
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Old March 20th, 2015, 12:14 PM
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HI oceanjams,

Thanks for highlighting this issue! I should have done more search before posting the thread! . Manage to get around with the suggested work around tips.

Many many thanks!
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