After I enter the description, ToolTip and choose a file, when I click insert on the ManagePhotoAlbum, nothing happens. I am not getting any error but the data about the picture is not displayed on the page.
Here is my aspx code
<%@ Page Title="Manage Photo Album" Language="
VB" MasterPageFile="~/MasterPages/Frontend.master" AutoEventWireup="false" CodeFile="ManagePhotoAlbum.aspx.
vb" 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="EntityDataSource1" InsertItemPosition="LastItem">
<InsertItemTemplate>
<li style="">
Description:
<asp:RequiredFieldValidator ID="reqDesc" ControlToValidate="DescriptionTextBox" runat="server" ErrorMessage="Enter a description." />
<asp:TextBox ID="DescriptionTextBox" runat="server"
Text='<%# Bind("Description") %>' /><br />
ToolTip:
<asp:RegularExpressionValidator ID="reqToolTip" ControlToValidate="ToolTipTextBox" runat="server" ErrorMessage="Enter a tool tip." />
<asp:TextBox ID="ToolTipTextBox" runat="server" Text='<%# Bind("ToolTip") %>' /><br />
<%--ImageUrl:
<asp:TextBox ID="ImageUrlTextBox" runat="server"
Text='<%# Bind("ImageUrl") %>' />--%>
<asp:FileUpload ID="FileUPload1" runat="server" /> <br />
<asp:CustomValidator ID="cusValImage" runat="server" ErrorMessage="Select a .jpg file." />
<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='<%# Eval("Description") %>' /><br />
ToolTip:
<asp:Label ID="ToolTipLabel" runat="server" Text='<%# Eval("ToolTip") %>' /><br />
<%--ImageUrl:
<asp:Label ID="ImageUrlLabel" runat="server" Text='<%# Eval("ImageUrl") %>' /><br />--%>
<asp:Image ID="ImageUrl" runat="server" ImageUrl='<%# Eval("ImageUrl") %>' /><br />
<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="EntityDataSource1" runat="server"
ConnectionString="name=TesterEntities"
DefaultContainerName="PlanetWroxEntities" EnableDelete="True"
EnableFlattening="False" EnableInsert="True" EntitySetName="Pictures"
Where="it.PhotoAlbum.Id = @photoAlbumId">
<WhereParameters>
<asp:QueryStringParameter Name="PhotoAlbumId" QueryStringField="PhotoAlbumId"
Type="Int32" />
</WhereParameters>
</asp:EntityDataSource>
</asp:Content>
My code behind
Imports TesterModel
Partial Class _ManagePhotoAlbum
Inherits BasePage
Protected Sub EntityDataSource1_Inserting(sender As Object, e As System.Web.UI.WebControls.EntityDataSourceChanging EventArgs) Handles EntityDataSource1.Inserting
Dim photoAlbumId As Integer =
Convert.ToInt32(Request.QueryString.Get("PhotoAlbu mId"))
Dim myPicture As Picture = CType(e.Entity, Picture)
myPicture.PhotoAlbumId = photoAlbumId
'The code below saves file to disk and then updates the ImageUrl property of the Picture instance with its new location
Dim FileUpload1 As FileUpload =
CType(ListView1.InsertItem.FindControl("FileUpload 1"), FileUpload)
Dim virtualFolder As String = "~/GigPics/"
Dim physicalFolder As String = Server.MapPath(virtualFolder)
Dim fileName As String = Guid.NewGuid().ToString()
Dim extension As String = System.IO.Path.GetExtension(FileUpload1.FileName)
FileUpload1.SaveAs(System.IO.Path.Combine(physical Folder, fileName + extension))
myPicture.ImageUrl = virtualFolder + fileName + extension
End Sub
Protected Sub ListView1_ItemInserting(sender As Object, e As System.Web.UI.WebControls.ListViewInsertEventArgs) Handles ListView1.ItemInserting
Dim FileUpload1 As FileUpload = CType(ListView1.InsertItem.FindControl("FileUpload 1"), FileUpload)
If Not FileUpload1.HasFile OrElse Not FileUpload1.FileName.ToLower().EndsWith(".jpg") Then
Dim cusValImage As CustomValidator = CType(ListView1.InsertItem.FindControl("cusValImag e"), CustomValidator)
cusValImage.IsValid = False
e.Cancel = True
End If
End Sub
End Class
Chapter 14 Inserting and Deleting Data with the ListView Control
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