ASP.NET Discussion Boards

Re: Web.config with variable or key inside

Karthik. A9-Jul-12 9:48

Karthik. A

9-Jul-12 9:48

Why not just do this ?

<configuration>
<connectionStrings>
<add name="dbConn" connectionString="Data Source=srvproduction\SQL2008Express;MultipleActiveResultSets=True;Initial Catalog=db1;Persist Security Info=True;Connection Timeout=600;User ID=sa;Password=***" providerName="System.Data.SqlClient"/>
</connectionStrings>
</configuration>

As Sandeep said, you cannot have programming logic w/in your web.config file.

Cheers,
Karthik

asp.net error A first chance exception of type

dcof7-Jul-12 19:26

dcof

7-Jul-12 19:26

When I am debugging a C# 2010 web application, I am getting the error, "A first chance exception of type 'System.Web.HttpParseException' occurred in System.Web.dll" sometimes.

I am wondering if you can suggest in what situations this error could be occuring and/or possibly help me to determine when this type of error is occuring?

The only thing I think that can be causing this error is when a user finishes working on my new pages on the company website. My new web pages run in a series of 5 pages. When they have finsished entering data for one customer i redirect the user to the first of the 5 pages. at any point the user can click the 'logout' button that is at the top of all the master pages. Could this be an issue?

asp.net debug error message

dcof7-Jul-12 19:25

dcof

7-Jul-12 19:25

When I am stepping through code for a C# 2010 web form application,there are times when I can see the values of variables and there are times where I can not see the value of variables. I am wondering what is causing this and how I make make certain I can see the values of the variables.

Here are some of the messages that I see and I am wondering if these error messages are related or not? What do you suggest I do to resolve the issues with the error messages?

fhe name 'filteredList' does not exist in the current context  results Cannot obtain value of local or argument 'results' as it is not available at this instruction pointer, possibly because it has been optimized away.  Step into: Stepping over method without symbols 'System.Web.UI.WebControls.ListControl.SelectedValue.get' Step into: Stepping over method without symbols 'string.Concat' Step into: Stepping over method without symbols 'System.Web.HttpApplication.ExecuteStep' Step into: Stepping over method without symbols 'System.Web.HttpApplication.BeginProcessRequestNotification'

Note: when a message says a value is not available, I am in the method at the time and I should be able to see value.

Re: asp.net debug error message

Sandeep Mewara7-Jul-12 21:12

Sandeep Mewara

7-Jul-12 21:12

It might be that your project or solution is not in DEBUG mode.

See a similar issue discussed and resolved here: “Cannot evaluate expression because the code of the current method is optimized” in Visual Studio 2010[^]

Sandeep Mewara
[My last article]: Server side Delimiters in ASP.NET[^]

Re: asp.net debug error message

dcof8-Jul-12 6:15

dcof

8-Jul-12 6:15

I did know what the following,"It might be that your project or solution is not in DEBUG mode."

Thus can you tell me how to make certain my proejct and solution are both in debug mode? I do not know how to do this.

Re: asp.net debug error message

Sandeep Mewara11-Jul-12 1:55

Sandeep Mewara

11-Jul-12 1:55

Try: Right click solution -> Properties -> Configuration properties.

Sandeep Mewara
[My last article]: Server side Delimiters in ASP.NET[^]

news article page

Jassim Rahma7-Jul-12 10:44

Jassim Rahma

7-Jul-12 10:44

If you visit bbc or cnn or any other news page you will see the news article page with rich text and images.

What is the best to do this in ASP.net if I want to create an entry page for users to create such pages for them self? Will database be a good idea?

Re: news article page

Sandeep Mewara8-Jul-12 4:18

Sandeep Mewara

8-Jul-12 4:18

jrahma wrote:
What is the best to do this in ASP.net

Silverlight was introduced for rich applications in ASP.NET earlier but HTML5 with CSS3 looks the right way currently. Try HTML5 for rich UI.
You can start reading about it from here: http://www.w3schools.com/html5/default.asp[^]

jrahma wrote:
Will database be a good idea?

No idea where from database came into picture here!

Sandeep Mewara
[My last article]: Server side Delimiters in ASP.NET[^]

Re: news article page

Joshua Omundson9-Jul-12 13:27

Joshua Omundson

9-Jul-12 13:27

I'm sure the OP is asking if a database would be a good way to store the news articles, pictures, etc.

Re: news article page

zhxhdean11-Jul-12 19:28

zhxhdean

11-Jul-12 19:28

hi,
text,images's path into database,images into files of server Laugh | :laugh:

asp.net

rinku rlsual7-Jul-12 7:00

rinku rlsual

7-Jul-12 7:00

what is the beginner coding for creating web designing.

Re: asp.net

Sandeep Mewara7-Jul-12 7:59

Sandeep Mewara

7-Jul-12 7:59

Sounds like you are into web and started with ASP.NET.

Start from here: ASP.NET Tutorial: Your first website[^]

Look at these too to learn more:
ASP.Net get started[^]
ASP.NET Projects from CodePlex [^]
MSDN: ASP.NET Developer Center[^]
ASP.NET website[^]

Sandeep Mewara
[My last article]: Server side Delimiters in ASP.NET[^]

Re: asp.net

AmitGajjar10-Jul-12 22:40

AmitGajjar

10-Jul-12 22:40

My Favorite C# book[^] please refere once if you are interested in C#

Re: asp.net

zhxhdean11-Jul-12 19:31

zhxhdean

11-Jul-12 19:31

you must study html/css/javascript/asp.net/sqlserver etc

Groupvalidation in asp.net

deeptul7-Jul-12 1:32

deeptul

7-Jul-12 1:32

i have login page conatiend two button login and other for regsitration my login page i applyed validation textbox1 and textbox2 as i left it blank click on Registeration button it will not allow to move regsteration page bcoz all this validation.
tell me how can i group text box with login button

Re: Groupvalidation in asp.net

Sandeep Mewara7-Jul-12 8:15

Sandeep Mewara

7-Jul-12 8:15

Just do something like:

ASP.NET

<tr>
  <td style="width: 100px"> First Name</td>
  <td style="width: 100px">
    <asp:TextBox ID="txtFirstName" runat="server" ValidationGroup="Name_Group"></asp:TextBox>
    <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtFirstName" ErrorMessage="Enter First Name" ValidationGroup="Name_Group" Width="149px"></asp:RequiredFieldValidator>
  </td>
</tr>
<tr>
   <td style="width: 100px">Last Name</td>
   <td style="width: 100px">
     <asp:TextBox ID="txtLastName" runat="server" ValidationGroup="Name_group"></asp:TextBox>
     <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="txtLastName"  ErrorMessage="Enter Last Name" ValidationGroup="Name_Group"Width="152px"></asp:RequiredFieldValidator>
   </td>
</tr>
<tr>
  <td style="width: 100px"></td>
  <td style="width: 100px">
    <asp:Button ID="btnRegister" runat="server" Text="Register" ValidationGroup="Register_Group" />
  </td>
</tr>

ValidationGroup="Register_Group" takes care of your scenario.

Following illustrates on how you can group them:
Validation group in ASP.Net 2.0[^]
MSDN: Specifying Validation Groups[^]

Sandeep Mewara
[My last article]: Server side Delimiters in ASP.NET[^]

Re: Groupvalidation in asp.net

deeptul11-Jul-12 6:56

deeptul

11-Jul-12 6:56

hey thankz for reply can you help me out for caching asp.net i m beginners

Re: Groupvalidation in asp.net

Sandeep Mewara11-Jul-12 7:18

Sandeep Mewara

11-Jul-12 7:18

You can just start from this article: Exploring Caching in ASP.NET[^]

Sandeep Mewara
[My last article]: Server side Delimiters in ASP.NET[^]

C# web app -not see variable values

classy_dog6-Jul-12 21:19

classy_dog

6-Jul-12 21:19

When I am debugging a C# 2010 web form application that is running against iis7 from my visual studio.net 2010 professional ide, I get messages like the following:

this Cannot obtain value of local or argument '<this>' as it is not available at this instruction pointer, possibly because it has been optimized away. Damport.DImportDataContext fileOrServerOrConnection Cannot obtain value of local or argument 'fileOrServerOrConnection' as it is not available at this instruction pointer, possibly because it has been optimized away. string mapping Cannot obtain value of local or argument 'mapping' as it is not available at this instruction pointer, possibly because it has been optimized away. System.Data.Linq.Mapping.MappingSource

This kind of error message occurs in different sections of the code. Some sections I do not have this problem.

Basically when this kind of error message occurs, I can not see the value in different variables. Thus can you tell me what I can do so that I can see the value of the variables when this error occurs?

Re: C# web app -not see variable values

Sandeep Mewara7-Jul-12 8:05

Sandeep Mewara

7-Jul-12 8:05

Try deleting the solution user options file. (It's a hidden file next to solution file with the extension .suo)

If that does not resolve then here are couple of tricks to solve it: How to disable optimizations during debugging[^]

Sandeep Mewara
[My last article]: Server side Delimiters in ASP.NET[^]

asp.net file name problem

rachel_m6-Jul-12 6:28

rachel_m

6-Jul-12 6:28

I have a C# 2010 web form application that uses linq to sql connections. I am having problems with the visual studio.net 2010 ide opening up very slowly.
The problem looks like I need to change part of the name for a dbml file. Here are the names I am working with;
1. testapp.dbml,
2. testapp.dbml.layout, and

3. testapp1.designer.cs.

I know the problem is the name called testapp1.designer.cs.

I do not know how to change the name of this element. The visual studio.net ide will not let me change
the name from testapp1.designer.cs to testapp.designer.cs.

Thus can you tell me how to change the name?

If you think something else is causing the problem, can you let me know what it is and how to solve the problem?

Re: asp.net file name problem

Richard MacCutchan6-Jul-12 21:24

Richard MacCutchan

6-Jul-12 21:24

You need to apply the rename to the parent file testapp1.cs.

speaking as ...

Re: asp.net file name problem

rachel_m7-Jul-12 10:37

rachel_m

7-Jul-12 10:37

I changed the higher level file name to:
testapp1.

Then the lower level file name became the following:
testapp11.

Do you have other suggestions?

Re: asp.net file name problem

Richard MacCutchan7-Jul-12 23:07

Richard MacCutchan

7-Jul-12 23:07

Strange, there must be some other naming system in web applications; I have never seen this before. Maybe you should create a new project and see if it follows the same pattern. I also forget why you need to change this name, perhaps you could clarify what the problem is.

speaking as ...

web app default connection string problem

dcof6-Jul-12 4:47

dcof

6-Jul-12 4:47

I am having a problem with the default behavior of linq to sql when I added a new table to the app.dbml file to an existing C# 2010 web form app. . The application changed the connection string from appConnectionString (Settings) to OtherConnectionString (Settings).

I am trying to get the app.dbml file file to allow me to change it back to appConnectionString (Settings). However the designer is not allowing me to do that unless i create a new connection string.

Basically I am opening the app.dbml file so I can see the designer. From here I click on properties and I see the connection string settings.

Thus can you tell me how I can get access to change the setting back to appConnectionString (Settings)?

modified 6-Jul-12 16:24pm.

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