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BOOK: Beginning ASP.NET 4 : in C# and VB
 | This is the forum to discuss the Wrox book Beginning ASP.NET 4: in C# and VB by Imar Spaanjaars; ISBN: 9780470502211 |
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May 14th, 2011, 05:02 PM
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Friend of Wrox
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Join Date: May 2011
Posts: 411
Thanks: 13
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Pure frustration
<script type="text/javascript">
$(function () {
$('.GridView tr:odd:not(.GridViewPagerStyle)').addClass('GridVi ewAlternatingRowStyle');
});
<
I get a javascript error that says $ is not defined. This makes no sense because it in the management master master page and it still gives me this error. This is pure insanity and this should not be happening.
Last edited by jminatel; May 15th, 2011 at 08:27 AM..
Reason: Removed abusive language.
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May 14th, 2011, 05:29 PM
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Wrox Author
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Join Date: Jun 2003
Posts: 17,089
Thanks: 80
Thanked 1,576 Times in 1,552 Posts
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Hi there,
As you can see by browsing this forum, you can see I am very open to criticism and feedback on my books. However, it has to be constructive. And your comment doesn't qualify as such. Burn it and write a very very bad review on Amazon.com because you made a mistake somewhere? That makes no sense to me at all.
So, if you want to give this worthless book another shot and make this work, try this instead and I'll point you to your error:
1. Post the code for the master page
2. Post the code for the page
3. Make sure the jQuery script is located in the correct folder and is named as described in the book.
4. Tell me where you get the error (in visual studio or in the browser)
With this information, the problem can be fixed in minutes.
Cheers,
Imar
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May 14th, 2011, 05:50 PM
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Friend of Wrox
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Join Date: May 2011
Posts: 411
Thanks: 13
Thanked 7 Times in 7 Posts
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How do I post the code for the master page?
Do I put the code in here for you? I don't understand.
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May 14th, 2011, 05:51 PM
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Friend of Wrox
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Join Date: May 2011
Posts: 411
Thanks: 13
Thanked 7 Times in 7 Posts
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How do I post the [code] for the masterpage. Do I post it in here? I am very confused!
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May 14th, 2011, 05:51 PM
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Friend of Wrox
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Join Date: May 2011
Posts: 411
Thanks: 13
Thanked 7 Times in 7 Posts
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How do I reply
Do I post what you want in here? I am very confused.
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May 14th, 2011, 06:00 PM
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Friend of Wrox
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Join Date: May 2011
Posts: 411
Thanks: 13
Thanked 7 Times in 7 Posts
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Dude I am using YOUR Code straight from the website. It still throws a javascript error when I try to run it gives me a run time error that says that $ is not recognized or is undefined. or something like that.
Code:
All I did was copy and paste your code.
It dies right here at run time. It compiles fine otherwise.
I get a javascript error that says $ not defined.
<script type="text/javascript">
$(function () {
$('.GridView tr:odd:not(.GridViewPagerStyle)').addClass('GridViewAlternatingRowStyle');
});
</script>
<%@ Page Title="Planet Wrox - Management - Genres" Language="C#" MasterPageFile="~/MasterPages/Management.master" AutoEventWireup="true" CodeFile="Genres.aspx.cs" Inherits="Management_Genres" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="cpMainContent" runat="Server">
<asp:Label ID="ErrorMessage" runat="server" CssClass="ErrorMessage" EnableViewState="False"></asp:Label>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="Id" DataSourceID="SqlDataSource1" EmptyDataText="There are no data records to display." AllowPaging="True" AllowSorting="True" CellPadding="4" ForeColor="#333333" GridLines="None" OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:TemplateField ShowHeader="False">
<EditItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="True" CommandName="Update" Text="Update"></asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel"></asp:LinkButton>
</EditItemTemplate>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit"></asp:LinkButton>
<asp:LinkButton ID="DeleteLink" runat="server" CausesValidation="False" CommandName="Delete" Text="Delete"></asp:LinkButton>
</ItemTemplate>
<ItemStyle Width="100px" />
</asp:TemplateField>
<asp:BoundField ItemStyle-Width="200px" DataField="Name" HeaderText="Name" SortExpression="Name">
<ItemStyle Width="200px"></ItemStyle>
</asp:BoundField>
<asp:BoundField DataField="SortOrder" HeaderText="SortOrder" SortExpression="SortOrder" />
</Columns>
</asp:GridView>
<asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" DataKeyNames="Id" DataSourceID="SqlDataSource1" DefaultMode="Insert" Height="50px" Width="125px">
<Fields>
<asp:BoundField DataField="Id" HeaderText="Id" InsertVisible="False" ReadOnly="True" SortExpression="Id" />
<asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
<asp:BoundField DataField="SortOrder" HeaderText="SortOrder" SortExpression="SortOrder" />
<asp:CommandField ShowInsertButton="True" />
</Fields>
</asp:DetailsView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:PlanetWroxConnectionString1 %>" DeleteCommand="DELETE FROM [Genre] WHERE [Id] = @Id" InsertCommand="INSERT INTO [Genre] ([Name], [SortOrder]) VALUES (@Name, @SortOrder)" ProviderName="<%$ ConnectionStrings:PlanetWroxConnectionString1.ProviderName %>" SelectCommand="SELECT Genre.Id, Genre.Name, Genre.SortOrder, COUNT(Review.Id) AS NumberOfReviews FROM Genre LEFT OUTER JOIN Review ON Genre.Id = Review.GenreId GROUP BY Genre.Id, Genre.Name, Genre.SortOrder" UpdateCommand="UPDATE [Genre] SET [Name] = @Name, [SortOrder] = @SortOrder WHERE [Id] = @Id" OnDeleted="SqlDataSource1_Deleted">
<DeleteParameters>
<asp:Parameter Name="Id" Type="Int32" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="Name" Type="String" />
<asp:Parameter Name="SortOrder" Type="Int32" />
</InsertParameters>
<UpdateParameters>
<asp:Parameter Name="Name" Type="String" />
<asp:Parameter Name="SortOrder" Type="Int32" />
<asp:Parameter Name="Id" Type="Int32" />
</UpdateParameters>
</asp:SqlDataSource>
<script type="text/javascript">
$(function () {
$('.GridView tr:odd:not(.GridViewPagerStyle)').addClass('GridViewAlternatingRowStyle');
});
</script>
</asp:Content>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
public partial class Management_Genres : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
switch (e.Row.RowType)
{
case DataControlRowType.DataRow:
DataRowView myDataRowView = (DataRowView)e.Row.DataItem;
if (Convert.ToInt32(myDataRowView["NumberOfReviews"]) > 0)
{
LinkButton deleteLink = e.Row.FindControl("DeleteLink") as LinkButton;
if (deleteLink != null)
{
deleteLink.Enabled = false;
}
}
break;
}
}
protected void SqlDataSource1_Deleted(object sender, SqlDataSourceStatusEventArgs e)
{
if (e.Exception != null && e.Exception is SqlException)
{
SqlException myException = (SqlException)e.Exception;
if (myException.Number == 547)
{
ErrorMessage.Text = @"Sorry, you can't delete this genre because it has associated reviews that you need to delete first.";
e.ExceptionHandled = true;
}
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
public partial class Management_Genres : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
switch (e.Row.RowType)
{
case DataControlRowType.DataRow:
DataRowView myDataRowView = (DataRowView)e.Row.DataItem;
if (Convert.ToInt32(myDataRowView["NumberOfReviews"]) > 0)
{
LinkButton deleteLink = e.Row.FindControl("DeleteLink") as LinkButton;
if (deleteLink != null)
{
deleteLink.Enabled = false;
}
}
break;
}
}
protected void SqlDataSource1_Deleted(object sender, SqlDataSourceStatusEventArgs e)
{
if (e.Exception != null && e.Exception is SqlException)
{
SqlException myException = (SqlException)e.Exception;
if (myException.Number == 547)
{
ErrorMessage.Text = @"Sorry, you can't delete this genre because it has associated reviews that you need to delete first.";
e.ExceptionHandled = true;
}
}
}
}
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May 14th, 2011, 06:01 PM
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Friend of Wrox
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Join Date: May 2011
Posts: 411
Thanks: 13
Thanked 7 Times in 7 Posts
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Dude I am using YOUR stuff straight from the website. It still throws a javascript error when I try to run it gives me a run time error that says that $ is not recognized or is undefined. or something like that.
Code:
All I did was copy and paste your code.
It dies right here at run time. It compiles fine otherwise.
I get a javascript error that says $ not defined.
<script type="text/javascript">
$(function () {
$('.GridView tr:odd:not(.GridViewPagerStyle)').addClass('GridViewAlternatingRowStyle');
});
</script>
<%@ Page Title="Planet Wrox - Management - Genres" Language="C#" MasterPageFile="~/MasterPages/Management.master" AutoEventWireup="true" CodeFile="Genres.aspx.cs" Inherits="Management_Genres" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="cpMainContent" runat="Server">
<asp:Label ID="ErrorMessage" runat="server" CssClass="ErrorMessage" EnableViewState="False"></asp:Label>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="Id" DataSourceID="SqlDataSource1" EmptyDataText="There are no data records to display." AllowPaging="True" AllowSorting="True" CellPadding="4" ForeColor="#333333" GridLines="None" OnRowDataBound="GridView1_RowDataBound">
<Columns>
<asp:TemplateField ShowHeader="False">
<EditItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="True" CommandName="Update" Text="Update"></asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel"></asp:LinkButton>
</EditItemTemplate>
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit"></asp:LinkButton>
<asp:LinkButton ID="DeleteLink" runat="server" CausesValidation="False" CommandName="Delete" Text="Delete"></asp:LinkButton>
</ItemTemplate>
<ItemStyle Width="100px" />
</asp:TemplateField>
<asp:BoundField ItemStyle-Width="200px" DataField="Name" HeaderText="Name" SortExpression="Name">
<ItemStyle Width="200px"></ItemStyle>
</asp:BoundField>
<asp:BoundField DataField="SortOrder" HeaderText="SortOrder" SortExpression="SortOrder" />
</Columns>
</asp:GridView>
<asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" DataKeyNames="Id" DataSourceID="SqlDataSource1" DefaultMode="Insert" Height="50px" Width="125px">
<Fields>
<asp:BoundField DataField="Id" HeaderText="Id" InsertVisible="False" ReadOnly="True" SortExpression="Id" />
<asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
<asp:BoundField DataField="SortOrder" HeaderText="SortOrder" SortExpression="SortOrder" />
<asp:CommandField ShowInsertButton="True" />
</Fields>
</asp:DetailsView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:PlanetWroxConnectionString1 %>" DeleteCommand="DELETE FROM [Genre] WHERE [Id] = @Id" InsertCommand="INSERT INTO [Genre] ([Name], [SortOrder]) VALUES (@Name, @SortOrder)" ProviderName="<%$ ConnectionStrings:PlanetWroxConnectionString1.ProviderName %>" SelectCommand="SELECT Genre.Id, Genre.Name, Genre.SortOrder, COUNT(Review.Id) AS NumberOfReviews FROM Genre LEFT OUTER JOIN Review ON Genre.Id = Review.GenreId GROUP BY Genre.Id, Genre.Name, Genre.SortOrder" UpdateCommand="UPDATE [Genre] SET [Name] = @Name, [SortOrder] = @SortOrder WHERE [Id] = @Id" OnDeleted="SqlDataSource1_Deleted">
<DeleteParameters>
<asp:Parameter Name="Id" Type="Int32" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="Name" Type="String" />
<asp:Parameter Name="SortOrder" Type="Int32" />
</InsertParameters>
<UpdateParameters>
<asp:Parameter Name="Name" Type="String" />
<asp:Parameter Name="SortOrder" Type="Int32" />
<asp:Parameter Name="Id" Type="Int32" />
</UpdateParameters>
</asp:SqlDataSource>
<script type="text/javascript">
$(function () {
$('.GridView tr:odd:not(.GridViewPagerStyle)').addClass('GridViewAlternatingRowStyle');
});
</script>
</asp:Content>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
public partial class Management_Genres : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
switch (e.Row.RowType)
{
case DataControlRowType.DataRow:
DataRowView myDataRowView = (DataRowView)e.Row.DataItem;
if (Convert.ToInt32(myDataRowView["NumberOfReviews"]) > 0)
{
LinkButton deleteLink = e.Row.FindControl("DeleteLink") as LinkButton;
if (deleteLink != null)
{
deleteLink.Enabled = false;
}
}
break;
}
}
protected void SqlDataSource1_Deleted(object sender, SqlDataSourceStatusEventArgs e)
{
if (e.Exception != null && e.Exception is SqlException)
{
SqlException myException = (SqlException)e.Exception;
if (myException.Number == 547)
{
ErrorMessage.Text = @"Sorry, you can't delete this genre because it has associated reviews that you need to delete first.";
e.ExceptionHandled = true;
}
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
public partial class Management_Genres : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
switch (e.Row.RowType)
{
case DataControlRowType.DataRow:
DataRowView myDataRowView = (DataRowView)e.Row.DataItem;
if (Convert.ToInt32(myDataRowView["NumberOfReviews"]) > 0)
{
LinkButton deleteLink = e.Row.FindControl("DeleteLink") as LinkButton;
if (deleteLink != null)
{
deleteLink.Enabled = false;
}
}
break;
}
}
protected void SqlDataSource1_Deleted(object sender, SqlDataSourceStatusEventArgs e)
{
if (e.Exception != null && e.Exception is SqlException)
{
SqlException myException = (SqlException)e.Exception;
if (myException.Number == 547)
{
ErrorMessage.Text = @"Sorry, you can't delete this genre because it has associated reviews that you need to delete first.";
e.ExceptionHandled = true;
}
}
}
}
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May 14th, 2011, 06:05 PM
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Friend of Wrox
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Join Date: May 2011
Posts: 411
Thanks: 13
Thanked 7 Times in 7 Posts
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Code:
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="Management.master.cs" Inherits="MasterPages_Management" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<asp:ContentPlaceHolder ID="head" runat="server">
<script src="../Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
<div style="width: 200px; float: left;">
<ul>
<li><a href="~/Management/Default.aspx" runat="server">Management Home</a></li>
<li><a href="~/Management/Genres.aspx" runat="server">Manage Genres</a></li>
<li><a href="~/Management/Reviews.aspx" runat="server">Manage Reviews</a></li>
</ul>
</div>
<div style="width: 750px; float: left;">
<asp:ContentPlaceHolder ID="cpMainContent" runat="server">
</asp:ContentPlaceHolder>
</div>
</div>
</form>
</body>
</html>
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May 14th, 2011, 06:10 PM
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Friend of Wrox
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Join Date: May 2011
Posts: 411
Thanks: 13
Thanked 7 Times in 7 Posts
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I stand corrected.
You know what? I owe you an appology. My bad. I way over-reacted. Must be the Irish in me. Sorry about that. I found the error and it was something really stupid. I placed the line for the jquery in managemaster page in the wrong place. I fixed this problem. A very simple mistake led to a big error. I was wrong I stand corrected. My bad once again.
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May 14th, 2011, 06:32 PM
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Wrox Author
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Join Date: Jun 2003
Posts: 17,089
Thanks: 80
Thanked 1,576 Times in 1,552 Posts
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That's OK. You're not the first one to run into issues like this. After all, you bought a Beginners book. You are, however, the first, and hopefully the last, person to post a comment about the book in such an extremely rude way.
Imar
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