- Recent Posts http://www.kencox.ca/forum/recent.aspx - Recent Posts en-us http://blogs.law.harvard.edu/tech/rss Jitbit AspNetForum Mon, 30 Aug 2010 13:27:32 GMT Mon, 30 Aug 2010 13:27:32 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=139 Message from dcawkwell Something to do with the default connection for the aspnetdb database not being there so it need something in the form of this adding to the web.config file.
Anybody know what the publickeytoken is and what it should be?

<membership>

<providers>

<remove name="AspNetSqlMembershipProvider" />

<add name="AspNetSqlMembershipProvider"

type="System.Web.Security.SqlMembershipProvider,

System.Web, Version=2.0.0.0, Culture=neutral,

PublicKeyToken=b03f5f7f11d50a3a"

connectionStringName="LocalSQLServer"

enablePasswordRetrieval="false"

enablePasswordReset="true"

requiresQuestionAndAnswer="true"

applicationName="/"

requiresUniqueEmail="false"

passwordFormat="Hashed"

maxInvalidPasswordAttempts="5"

minRequiredPasswordLength="7"

minRequiredNonalphanumericCharacters="1"

passwordAttemptWindow="10"

passwordStrengthRegularExpression="" />

</providers>

</membership>

<profile>

<providers>

<remove name="AspNetSqlProfileProvider" />

<add name="AspNetSqlProfileProvider"

connectionStringName="LocalSQLServer"

applicationName="/"

type="System.Web.Profile.SqlProfileProvider,

System.Web, Version=2.0.0.0, Culture=neutral,

PublicKeyToken=b03f5f7f11d50a3a" />

</providers>

</profile>

<roleManager>

<providers>

<remove name="AspNetSqlRoleProvider" />

<add name="AspNetSqlRoleProvider"

connectionStringName="LocalSQLServer"

applicationName="/"

type="System.Web.Security.SqlRoleProvider,

System.Web, Version=2.0.0.0, Culture=neutral,

PublicKeyToken=b03f5f7f11d50a3a" />

</providers>

</roleManager>]]> Mon, 30 Aug 2010 13:27:32 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=139 Message from dcawkwell when it is trying to creat items in the cart. What has gone wrong with my system to stop the cart working?

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)

Source Error:


Line 22: Public Overridable Property ShoppingCart() As ShoppingCart
Line 23: Get
Line 24: Return CType(Me.GetPropertyValue("ShoppingCart"),ShoppingCart)
Line 25: End Get
Line 26: Set]]> Mon, 30 Aug 2010 06:14:08 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=137 Message from Ken Cox mjrodino wrote:
Instead of displaying the first Country, I want it to say "-Select-".Thanks!


You could probably get this answer in the asp.net forums but here you go:

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

Protected Sub Page_Load(ByVal sender As Object, _
ByVal e As System.EventArgs)
If Not IsPostBack Then
' Create some data
Dim q = From tz As TimeZoneInfo _
In System.TimeZoneInfo.GetSystemTimeZones() _
Select tz.DisplayName, tz.Id, tz.BaseUtcOffset _
Order By BaseUtcOffset
' Tell the ddl to use the data
DropDownList1.DataSource = q
' Tell the ddl what data to use where
DropDownList1.DataTextField = "DisplayName"
DropDownList1.DataValueField = "Id"
' Tell the ddl to absorb this data
DropDownList1.DataBind()
' Create a new item
Dim itm As New ListItem
' Define the item
itm.Text = "-- Select --"
itm.Value = "-1"
itm.Selected = True
' Jam the item into the ddl as the first one
DropDownList1.Items.Insert(0, itm)
' Tell the ddl to select the first item
DropDownList1.SelectedIndex = 0
End If
End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>

<aspBig GrinropDownList ID="DropDownList1" runat="server">
</aspBig GrinropDownList>

</div>
</form>
</body>
</html>]]> Fri, 02 Apr 2010 20:59:47 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=138 Message from Ken Cox D.Rabbit wrote:
Thanks for getting back to me so quickly, but I think that may have routed out the problem, I have no defined web.config file apparently. When I browse to where the files are being saved, all I find is what I can assume is a project file, which is a .sln.


Yup, a web.config is pretty well a necessity.]]> Fri, 02 Apr 2010 20:42:40 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=138 Message from D.Rabbit Fri, 02 Apr 2010 14:12:41 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=138 Message from Ken Cox
Sorry you're having problems.

I'm surprised that you can get any ASP.NET 3.5 stuff to work in Visual Studio 2005. Could you try working with free Visual Web Developer 2008 Express version? (http://www.microsoft.com/express/Web/)

Also you could compare the contents of the working and non-working web.config file. There might be a reference in the one for the sample code that you need.

Let me know how you make out?

Ken]]> Fri, 02 Apr 2010 13:40:02 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=138 Message from D.Rabbit
When I have tried your code posted on this site for C#, if I run it in your file provided, it works fine, however if I wanted to run it in my file I've created, I come up with issues with the "Cast" line:
clrs.AddRange(System.Enum.GetValues
(typeof(System.Drawing.KnownColor)).Cast<System.Drawing.KnownColor>());

Which tells me it doesn't understand "Cast"

If I just copy/paste your code from your page into a new page, I instead get an issue with the system.linq namespace, stating that it doesn't exist:

Error 1 The type or namespace name 'Linq' does not exist in the namespace 'System' (are you missing an assembly reference?) C:\Documents and Settings\Drowning Rabbit\My Documents\Visual Studio 2005\WebSites\WebSite6\Default.aspx 3

I'm at a loss at where to look for an answer in Visual Studio at this point (I own a copy of VS 2005, and is what I've been using), as when I load your code, everything works, but just a simple copy/paste and I get that issue.



E: Now I'm running into the exact same problem with Page 72, Getting Multiple Choices from a ListBox. Something is odd with the line:
<%@Import Namespace="System.Linq" %>


Again, everything works fine when I use the code provided on the site, yet when I try and run it myself in a different file, it blows up.
edited by D.Rabbit on 4/2/2010]]> Fri, 02 Apr 2010 12:16:25 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=137 Message from mjrodino
I have a question regarding drop down lists. I would like a drop down list to display the text: "-Select-" initially instead of the first value of the data it is bound to. How do I do that? I'm a newbie. Is there any way to do this by using the control tasks items instead of goin directly to the source code? For example, I would like to display it in the example on p.89. Instead of displaying the first Country, I want it to say "-Select-".

Thanks!]]> Wed, 31 Mar 2010 19:32:03 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=136 Message from Ken Cox about me.

Everyone has a story to tell, so why not get it out there before someone else publishes the truth!
edited by Ken Cox on 3/24/2010]]> Wed, 24 Mar 2010 02:28:48 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=135 Message from Ken Cox fxs wrote:
Hi again,

The Button ID does not work unless you add onclick="Button1_Click" figured that out when I downloaded your code. What I don't get is, when I look into the properties there is no onclick only a onclientclick which doesn't work like the onclick. So where does the onclick come from?


I'm surprised that you're not seeing the OnClick event. It appears with a lightning bolt icon in my IDE. OnClientClick appears next to it in Intellisense.

If you're using the Properties page (F4) to get at the event, you might need to move into Design view and then click the lightning bolt icon to get the list of server-side events.

Does that help at all?

Ken]]> Tue, 23 Mar 2010 16:34:30 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=135 Message from fxs
The Button ID does not work unless you add onclick="Button1_Click" figured that out when I downloaded your code. What I don't get is, when I look into the properties there is no onclick only a onclientclick which doesn't work like the onclick. So where does the onclick come from?

Thanks]]> Fri, 12 Mar 2010 14:14:45 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=134 Message from fxs ]]> Fri, 12 Mar 2010 14:10:24 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=134 Message from Ken Cox
It's fairly common to have an image button that glows (or otherwise changes appearance) on a mouse action. It's a simple little demo, similar to the one you see here:

http://www.designplace.org/static/rollover_button_example.html

It's not meant to be deep or anything so I'd say you're not missing anything. <grin>

Ken]]> Tue, 09 Mar 2010 11:59:11 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=134 Message from fxs
The exercise you propose on rollovers using your picture has got me confused, namely the pictures are a different shade to begin with. If I use any other two pics of the same shade the trick does not work. So what is the point if I have to photoshop a copy of the picture I wan to to create a rollover effect for? What am I missing here?

Thanks,

Fed]]> Mon, 08 Mar 2010 14:48:54 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=133 Message from fxs
Thanks!]]> Fri, 05 Mar 2010 16:38:56 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=133 Message from Ken Cox
Sorry you're having difficulty.

I'm not sure what the problem could be, but could you try downloading and installing the source code for the Chapter 9 to see if that database works on your machine?

Make sure your project has a web.config file in it, 'cause that's where the connection info is stored. If you send me the web.config, I might be able to see what's causing the failure.

Thanks,

Ken]]> Fri, 05 Mar 2010 15:49:32 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=133 Message from fxs
Great book! Congrats! Now for the problem...

When I click next after configuring the data source in the AccessDataSource control I get the following error;

"Database schema could not be retrieved for this connection. Please make sure the connection settings are correct and that the database is online. Cannot open database"

Likewise if I double click the db in Solution Explorer I get "Cannot Open Database."

I am running XP SP3, Access 2007, and VS 2008 Team Edition.

Can you help?

PS

I also tried converting the db to access 2007 but that did not work either, same error.

Thanks]]> Fri, 05 Mar 2010 15:25:01 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=132 Message from martinz .

I've skipped the not so unimportant point 6 on pg 81:
"CHoose the Customers table"

So I've left the selection at the 1st table on top, and it seems that it was empty.

Now the Advanced box isn't greyed out anymore, and everything works smoothly.

Sorry for the disturbance.]]> Thu, 28 Jan 2010 17:17:29 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=132 Message from martinz at first thanks for your great book, it really eases my way into the last release of the .Net World.

My problem:
-) I downloaded the Sample Databases from MS, no problem there.
-) I attach the DB-File northwind.mdf
-) I draw a SQL Data Source into the form
-) But when I click on the advanced button, both options are greyed out.


Do I have to enable wrte access to the database somehow?

The test query works fine, but I can just select, not do any changes to the table.

TIA, Martin]]> Thu, 28 Jan 2010 14:06:51 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=131 Message from Ken Cox
I wasn't aware of the Portuguese version until a reader contacted me. It looks like the publisher did a bad job on transcribing the code snippets. You've found some of the typos and there are obviously more.

If you go to this page and enter 68 (as the page number) and click GO, you'll see the correct source code:

http://kencox.ca/sourcecode.aspx

You can also download the complete code for the chapter here:

http://www.kencox.ca/samplecode/195925_CH05_Code.zip

I'm sorry about the mistakes. If I had been given a chance, I'd have checked the manuscript.

Ken]]> Fri, 22 Jan 2010 16:08:21 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=131 Message from thered
Some errors ocurred in the script of this part in chapter 5.
First, in the following script (in bold):

If Not IsPostBack Then
Dim arrlGames As New ArrayList
arrlGames.Add("Scrabble")
arrlGames.Add("Crosswords")
arrlGames.Add("Wonderwords")
arrlGames.Add("Sudoku")
arrlGames.Sort()
CheckBoxList!.DataSource = arrlGames
CheckBoxList!.DataBind()
End If

I think the correct script is:

If Not IsPostBack Then
Dim arrlGames As New ArrayList
arrlGames.Add("Scrabble")
arrlGames.Add("Crosswords")
arrlGames.Add("Wonderwords")
arrlGames.Add("Sudoku")
arrlGames.Sort()
CheckBoxList1.DataSource = arrlGames
CheckBoxList1.DataBind()
End If

Also, a script error was found in the script of the button.

Dim strSel As String = " "
For Each chbx As ListItem In CheckBoxList1.Items
If chbx.Selected Then
strSel = srtSel & chbx.Text & "<br/>"
End If
Next
Label1.Text = strSel

According to the program, the error is in the 4th line: strSel = srtSel & chbx.Text & "<br/>", concerning about the srtSel. The message in visual basic is that wam not declared.

Could you check, please what is going on?

My book version is the Portuguese Version. The scripts I mentioned are on page 68.

Thanks

Christian
edited by thered on 1/15/2010]]> Fri, 15 Jan 2010 05:49:03 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=130 Message from Ken Cox
CS1935: Could not find an implementation of the query pattern for source type 'System.Collections.Generic.IEnumerable<System.Xml.Linq.XElement>'. 'Where' not found. Are you missing a reference to 'System.Core.dll' or a using directive for 'System.Linq'?

The fix is to add the following reference at the top of the page:

<%@ Import Namespace="System.Linq" %>

An alternate fix is to ensure that the web.config file references all of the namespaces by including this in the <system.web> section:

<pages>
<namespaces>
<clear/>
<add namespace="System"/>
<add namespace="System.Collections"/>
<add namespace="System.Collections.Generic"/>
<add namespace="System.Collections.Specialized"/>
<add namespace="System.Configuration"/>
<add namespace="System.Text"/>
<add namespace="System.Text.RegularExpressions"/>
<add namespace="System.Linq"/>
<add namespace="System.Xml.Linq"/>
<add namespace="System.Web"/>
<add namespace="System.Web.Caching"/>
<add namespace="System.Web.SessionState"/>
<add namespace="System.Web.Security"/>
<add namespace="System.Web.Profile"/>
<add namespace="System.Web.UI"/>
<add namespace="System.Web.UI.WebControls"/>
<add namespace="System.Web.UI.WebControls.WebParts"/>
<add namespace="System.Web.UI.HtmlControls"/>
</namespaces>
<controls>
<add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</controls>
</pages>

Ken]]> Tue, 22 Dec 2009 13:21:20 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=21 Message from paddyinuae
Thanks for the amazingly prompt reply - you should do this as a business :-)!

All fixed - it works like a charm.
I probably would never have figured out the syntax to that import statement.

Thanks very much for the help, and great book btw.
It's made all the better for the eratta (minor though it is), download chapter code, and this forum.
Well done, and thanks again.

Ian.]]> Thu, 03 Dec 2009 22:11:30 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=21 Message from Ken Cox paddyinuae wrote:
I've tried all sorts of techniques and I've pasted that import directive just about everywhere, but still can't get the examples to work with code behind.


Hi Ian,

Could you post the code that's not working?

In the codebehind, you use the Imports statement with a different syntax:

Imports System.Linq

Partial Class linqtest
Inherits System.Web.UI.Page
Protected Sub Page_Load _
(ByVal sender As Object, ByVal e As System.EventArgs) _
Handles Me.Load
Dim q = From f In System.Drawing.FontFamily.Families
For Each fnt In q
Response.Write(fnt.Name & "<br />")
Next
End Sub
End Class

Does the preceding work for you?

Ken]]> Thu, 03 Dec 2009 12:05:24 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=21 Message from paddyinuae
I've looked through the FAQs, and I apologize in advance if this is a dumb question. As it's to do with LINQ and code behind files, I though here would be an opportune place to raise the question.

I notice that all examples use the "single page model" of coding. I've successfully followed the examples in the book, but would like to use the ""code behind model" of coding. I've tried all sorts of techniques and I've pasted that import directive just about everywhere, but still can't get the examples to work with code behind.

Can it be done, and if so, how difficult is it?

Thanks in anticipation.

Ian.]]> Thu, 03 Dec 2009 08:54:33 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=129 Message from Ken Cox Thu, 19 Nov 2009 16:00:30 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=128 Message from jason palmer
Think I saw this much earlier in the examples as well, will let you know when I find problems, they all very minor so can see how they slipped in.

regards

JP]]> Thu, 19 Nov 2009 09:13:25 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=127 Message from jason palmer
http://forums.asp.net/t/1484972.aspx

"I am using Visual Web Developer 2008 Express also and downloaded the Small Business Starter kit.

I double clicked the SmallBusiness.vsi file and it ran the install.

Next, opened Visual Web Developer.

On the Start Page selected Create Web Site.

On the Create Web Site box that opens you will see Templates at the bottom.

If installed correctly, you will see SmallBusiness as an option.

Selected it and since we are using VWD2008/ASP.NET 3.5 it will ask to convert the template from 2.0 to 3.5, select yes.

It then opens the entire "project".

There are directions on how to use it, once it is opened.




Already started modifying it, works great."]]> Thu, 19 Nov 2009 08:50:49 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=126 Message from jason palmer Thu, 19 Nov 2009 05:44:19 GMT http://www.kencox.ca/forum/messages.aspx?TopicID=125 Message from jason palmer
checkcolour.aspx not working

but

rgbservice.asmx is

so not sure of the cause, if I do checkcolour with debug i get

The request failed with HTTP status 404: Not Found.]]> Thu, 19 Nov 2009 05:26:40 GMT