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BOOK: Beginning ASP.NET 4 : in C# and VB
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Old April 12th, 2013, 03:05 AM
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I was gonna restart ch 14 using the ch. 13 resources cos it would be hard for me to look for where the problem is though any help is good.

As requested i here is the mark up and code behind for both pages.

MAJOR EDIT: I am using ASP.NET 4.5 and i didn't realise this is the 4.0 forum...WHOOPS!

ManagePhotoAlbum.aspx - Mark up
Code:
<%@ Page Title="Manage Photo Album" Language="C#" MasterPageFile="~/MasterPages/Frontend.master" AutoEventWireup="true" CodeFile="ManagePhotoAlbum.aspx.cs" Inherits="_ManagePhotoAlbum" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="cpMainContent" Runat="Server">
    <asp:ListView ID="ListView1" runat="server" DataKeyNames="Id" DataSourceID="edsListView" InsertItemPosition="LastItem" ItemType="PlanetWroxModel.Picture" OnItemInserting="ListView1_ItemInserting">
        
        <InsertItemTemplate>
            <li style="">Description:
                <asp:TextBox ID="DescriptionTextBox" runat="server" Text='<%# BindItem.Description %>' />
                <asp:RequiredFieldValidator ID="reqDesc" runat="server" ErrorMessage="Enter a description." ControlToValidate="DescriptionTextBox"></asp:RequiredFieldValidator>

                <br />ToolTip:
                <asp:TextBox ID="ToolTipTextBox" runat="server" Text='<%# BindItem.ToolTip %>' />
                <asp:RequiredFieldValidator ID="reqToolTip" runat="server" ErrorMessage="Enter a tool tip." ControlToValidate="ToolTipTextBox"></asp:RequiredFieldValidator>

                <br />ImageUrl:
                <asp:FileUpload ID="FileUpload1" runat="server" />
                <asp:CustomValidator ID="cusValImage" runat="server" ErrorMessage="Select a valid .jpg file."></asp:CustomValidator>
                <br />
                <asp:Button ID="InsertButton" runat="server" CommandName="Insert" Text="Insert" />
                <asp:Button ID="CancelButton" runat="server" CommandName="Cancel" Text="Clear" CausesValidation="false"/>
            </li>
        </InsertItemTemplate>
        
        <ItemTemplate>
            <li style="">
                Description:
                <asp:Label ID="DescriptionLabel" runat="server" Text='<%# Item.Description %>' />
                <br />
                ToolTip:
                <asp:Label ID="ToolTipLabel" runat="server" Text='<%# Item.ToolTip %>' />
                <br />
                <asp:Image ID="ImageUrl" runat="server" ImageUrl='<%# Item.ImageUrl %>' />
                <br />
                <asp:Image ID="Image1" runat="server" />
                <asp:Button ID="DeleteButton" runat="server" CommandName="Delete" Text="Delete" CausesValidation="false" />
            </li>
        </ItemTemplate>
        <LayoutTemplate>
            <ul class="ItemContainer">
                <li runat="server" id="itemPlaceholder" />
            </ul>
            
        </LayoutTemplate>
       
    </asp:ListView>
    <asp:EntityDataSource ID="edsListView" runat="server" ConnectionString="name=PlanetWroxEntities" DefaultContainerName="PlanetWroxEntities" EnableDelete="True" EnableFlattening="False" EnableInsert="True" EntitySetName="Pictures" Where="it.PhotoAlbum.Id = @photoAlbumId" OnInserting="edsListView_Inserting">
        <WhereParameters>
            <asp:QueryStringParameter Name="PhotoAlbumId" QueryStringField="PhotoAlbumId" Type="Int32" />
        </WhereParameters>
    </asp:EntityDataSource>
</asp:Content>
ManagePhotoAlbum.aspx - Code Behind
Code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using PlanetWroxModel;

public partial class _ManagePhotoAlbum : BasePage
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void edsListView_Inserting(object sender, EntityDataSourceChangingEventArgs e)
    {
        int photoAlbumId = Convert.ToInt32(Request.QueryString.Get("PhotoAlbumId"));
        Picture myPicture = (Picture)e.Entity;
        myPicture.PhotoAlbumId = photoAlbumId;

        FileUpload FileUpload1 = (FileUpload)ListView1.InsertItem.FindControl("FileUpload1");
        string virtualFolder = "~/GigPics/";

        string physicalFolder = Server.MapPath(virtualFolder);
        string fileName = Guid.NewGuid().ToString();
        string extension = System.IO.Path.GetExtension(FileUpload1.FileName);
        FileUpload1.SaveAs(System.IO.Path.Combine(physicalFolder, fileName + extension));
        myPicture.ImageUrl = virtualFolder + fileName + extension;
    }
    protected void ListView1_ItemInserting(object sender, ListViewInsertEventArgs e)
    {
        FileUpload FileUpload1 = (FileUpload)ListView1.InsertItem.FindControl("FileUpload1");
        if (!FileUpload1.HasFile || !FileUpload1.FileName.ToLower().EndsWith(".jpg"))
        {
            CustomValidator cusValImage = (CustomValidator)ListView1.InsertItem.FindControl("cusValImage");
            cusValImage.IsValid = false;
            e.Cancel = true;
        }
    }
}
NewPhotoAlbum.aspx
Code:
<%@ Page Title="Create New Photo Album" Language="C#" MasterPageFile="~/MasterPages/Frontend.master" AutoEventWireup="true" CodeFile="NewPhotoAlbum.aspx.cs" Inherits="_NewPhotoAlbum" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="cpMainContent" Runat="Server">
    <asp:DetailsView ID="PhotoAlbum" runat="server" AutoGenerateRows="False" DataKeyNames="Id" DataSourceID="EntityDataSource1" DefaultMode="Insert" Height="50px" Width="125px">
        <Fields>
            <asp:BoundField DataField="Id" HeaderText="Id" ReadOnly="True" SortExpression="Id" InsertVisible="false"/>
            <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
            <asp:CommandField ShowInsertButton="True" />
        </Fields>
    </asp:DetailsView>
    <asp:EntityDataSource ID="EntityDataSource1" runat="server" ConnectionString="name=PlanetWroxEntities" DefaultContainerName="PlanetWroxEntities" EnableFlattening="False" EnableInsert="True" EntitySetName="PhotoAlbums" OnInserted="EntityDataSource1_Inserted">
    </asp:EntityDataSource>
</asp:Content>
NewPhotoAlbum.aspx - Code Behind
Code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using PlanetWroxModel;

public partial class _NewPhotoAlbum : BasePage
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void EntityDataSource1_Inserted(object sender, EntityDataSourceChangedEventArgs e)
    {
        if (e.Entity != null)
        {
            PhotoAlbum myPhotoAlbum = (PhotoAlbum)e.Entity;
            Response.Redirect(string.Format("ManagePhotoAlbum.aspx?PhotoAlbumId={0}",
            myPhotoAlbum.Id.ToString()));
        }
    }
}

Last edited by thgh0sts; April 12th, 2013 at 03:09 AM..
 
Old April 13th, 2013, 06:29 AM
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>> MAJOR EDIT: I am using ASP.NET 4.5 and i didn't realise this is the 4.0 forum...WHOOPS!

You're much better off creating a new post instead of editing an existing one. Editing does not trigger e-mail notifications so the changes go unnoticed.

When you say using ASP.NET 4.5, do you mean the book or Visual Studio or both? Important for me to know your exact situation or I might be trying to reproduce the wrong problem.

I just copied your four code example in my Chapter 14 (of the 4.0 version of the book) and the exercises work just fine. So maybe it *is* something in your model after all?

>> so it's something in my default.aspx then.

Which default are you talking about?

Cheers,

Imar
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Imar Spaanjaars
http://Imar.Spaanjaars.Com
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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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