Re: Javascript - ASP.NET Discussion Boards

HttpCOntext is null for windows application

gottimukkala15-Mar-09 23:15

15-Mar-09 23:15

Hi

I am developing an windows application that tries access our handler which calls a provider for the configuration settings. Our Provider cs file contains constructors that access the current httpcontext which is null always, if i access it from my application. My colleague suggested to find a way to instantiate that HttpContext. I googles it but could find any thing. Does anyone here have any idea please!!

Any Ideas would be great!

Thanks in advancs,

Re: HttpCOntext is null for windows application

SeMartens15-Mar-09 23:24

SeMartens

15-Mar-09 23:24

Hi,

i'm just guessing but I don't think it is possible to have an HTTP context within an windows application. How do you use the HttpContext? Maybe it is easy to replace this one against sth that is useful within windows apps and web apps.

Regards
Sebastian

It's not a bug, it's a feature!

Check out my CodeProject article Permission-by-aspect.

Me in Softwareland.

Re: HttpCOntext is null for windows application

gottimukkala15-Mar-09 23:35

gottimukkala

15-Mar-09 23:35

Hi Sebastian,

Thank you for your reply. I didn't get exactly. The followign code explains clearly how I want to have it in windows applciation.

My dll which access my handler.

private void button1_Click(object sender, EventArgs e)
{
LoadConfigFile(System.Threading.Thread.GetDomain().BaseDirectory);
HttpContext context;
try
{
context = (HttpContext)HttpContext.Current;
}
catch { }
doXtopNotifications.EmailNotifications emailNotifications = new doXtopNotifications.EmailNotifications(this.lastExecutionTime, this.actions, context);
}

EmailNotifications.cs

public GlobalSettings gs;

public void Init(HttpContext ctx)
{
ConfigurationProvider configProvider = new ConfigurationProvider(ctx);
this.gs = configProvider.GlobalSettings;
}

public EmailNotifications(DateTime lastExecTime, XmlNodeList actions, HttpContext ctx)
{
Init(ctx);
}

My Handler class:

public class ConfigurationProvider
{
GlobalSettings _globalSettings = null;
HttpContext context = null;

public ConfigurationProvider()
{
context = HttpContext.Current;
}

public ConfigurationProvider(HttpContext ctx)
{
context = ctx;
}

public GlobalSettings GlobalSettings
{
get
{
//My Code fails in this block of code. I need to get GlobalSettings to access.

if (this.context != null)
{
if (this.context.Application["GlobalSettings"] == null)
loadSettings();
else
_globalSettings = (GlobalSettings)this.context.Application["GlobalSettings"];
}
return _globalSettings;
}
}
}

Re: HttpCOntext is null for windows application

SeMartens16-Mar-09 2:10

SeMartens

16-Mar-09 2:10

Well, as I can see it you are using the context to get the "GlobalSettings" from the Application-wide cache (ApplicationState). As a windows app itself does not use the same "session-model" like webapps, you have to load the settings when you want them to access.

I propose a little refactoring of your code. Maybe the "loadSettings"-method should return an instance of "GlobalSettings". If you have an instance of HttpContext, store the settings within the context. This will work for your webapps. If there is no HttpContext you are propably within a windows app, so you don't store them within a context, just return them. (If you like to cache them, just use the singleton-pattern).

Hope this helps you a bit.

Regards
Sebastian

It's not a bug, it's a feature!

Check out my CodeProject article Permission-by-aspect.

Me in Softwareland.

Re: HttpCOntext is null for windows application

gottimukkala16-Mar-09 2:15

gottimukkala

16-Mar-09 2:15

Thanks again for the reply. Can you post sample code how it be done for the windows application.

Re: HttpCOntext is null for windows application

SeMartens16-Mar-09 2:33

SeMartens

16-Mar-09 2:33

1. Change the signature of your loadSettings-method

public GlobalSettings LoadSettings() {
  // load the settings (but don't store them in the context)
  // return loaded settings
}

2. Then change your GlobalSettings-property in ConfigurationProvider

 public GlobalSettings GlobalSettings {
    get {
          GlobalSettings oSettings = null;
          // check for context
          if(this.context != null) {
             // load from context ApplicationState
          } 

          // check if found
          if(oSettings == null) {
             // load
             oSettings = this.LoadSettings();

             // check again for context
             if(this.context != null) {
                // save settings in ApplicationState
             }
          } 

          // return result
          return oSettings;
    }
}

This should work.

It's not a bug, it's a feature!

Check out my CodeProject article Permission-by-aspect.

Me in Softwareland.

Javascript [modified]

Ch.Gayatri Subudhi15-Mar-09 23:05

Ch.Gayatri Subudhi

15-Mar-09 23:05

How to pass value through java script in asp.net from one textboxt's value to label in same webpage.

Ch.Gayatri Subudhi

modified on Monday, March 16, 2009 5:16 AM

Re: Javascript

Christian Graus15-Mar-09 23:17

Christian Graus

15-Mar-09 23:17

There's been some examples posted, even tonight.

You need the client side ids of both controls ( which you get on the server with the ClientID property ). The you use document.getElementById to find both controls. Then you copy the value across.

Christian Graus

Driven to the arms of OSX by Vista.

Re: Javascript

Ch.Gayatri Subudhi15-Mar-09 23:25

Ch.Gayatri Subudhi

15-Mar-09 23:25

is it like this way...
function f1()
{
document.getElementById("t1").value=document.getElementById("lb1").value;

Ch.Gayatri Subudhi

Re: Javascript

Christian Graus15-Mar-09 23:38

Christian Graus

15-Mar-09 23:38

That's rough, but that's the gist of it.

Christian Graus

Driven to the arms of OSX by Vista.

Re: Javascript

Ch.Gayatri Subudhi16-Mar-09 0:36

Ch.Gayatri Subudhi

16-Mar-09 0:36

i m not getting u what is gist?

Ch.Gayatri subudhi

Re: Javascript

Christian Graus16-Mar-09 1:01

Christian Graus

16-Mar-09 1:01

It means I'd fire someone who wrote that code, but you've got the basic idea, you just need to make it reliable, make it work cleanly, etc.

Christian Graus

Driven to the arms of OSX by Vista.

Re: Javascript

Ch.Gayatri Subudhi16-Mar-09 18:11

Ch.Gayatri Subudhi

16-Mar-09 18:11

thanks

Refresh parent Grid

Member 322226415-Mar-09 22:34

Member 3222264

15-Mar-09 22:34

Hi,
I had a Grid with hyperlink.on Click of hyperlink a child grid open,where i will save datas in a rows.On clicking SAVE the parent grid must refresh and it must reflect the values in the child grid.

Please help........

Guhananth.S

Re: Refresh parent Grid

Christian Graus15-Mar-09 23:17

Christian Graus

15-Mar-09 23:17

Do the popup as a floating div, then they will both be the same page.

Christian Graus

Driven to the arms of OSX by Vista.

Master Page in VS 2005

Member 322226415-Mar-09 22:30

Member 3222264

15-Mar-09 22:30

Hi,
I want a master page with header and content,the header and footer should not refresh ie the content part alone must refresh on click of menu items.

Please help...........

Regards
S.Guhananth

Re: Master Page in VS 2005

Christian Graus15-Mar-09 23:19

Christian Graus

15-Mar-09 23:19

You should buy a book on web development and read it.

The only way to do this, is to use frames.

Christian Graus

Driven to the arms of OSX by Vista.

[Message Deleted]

bikash pattanayak15-Mar-09 21:57

bikash pattanayak

15-Mar-09 21:57

[Message Deleted]

Re: Refresh the parent window from chield

rakeshs31215-Mar-09 22:02

rakeshs312

15-Mar-09 22:02

Your problem is not urgent than anyones

Re: Refresh the parent window from chield

www.Developerof.NET15-Mar-09 22:35

www.Developerof.NET

15-Mar-09 22:35

Here u go...

When u click the save button call the foll func which shows an alert message:

Sub Show_Saved_Msg()
Dim scp As String = "alert('Data Saved Successfully');CloseAndReload();"
ClientScript.RegisterClientScriptBlock(Me.GetType(), "script1", scp)
End Sub

and include the following javascript in your js file:

function CloseAndReload()
{
window.close();
if (window.opener && !window.opener.closed)
{
window.opener.location.reload();
}
}

But the above code works very awkwardly in ie 7. So pls check it thoroughly.

When you fail to plan, you are planning to fail.

Re: Refresh the parent window from chield [modified]

bikash pattanayak15-Mar-09 23:44

bikash pattanayak

15-Mar-09 23:44

hi,

Many many thanks for response.I have tried this code but It does not meet my requirement because in my parent page I have a gridview which is within a updatepannel and I fill this grid in pageload through a method of parent and same method for binding the grid view is required when i click the save button in the chield page.

thanks and regards
bikash

modified on Monday, March 16, 2009 6:14 AM

i want full path of the selected file..using FileUpload1 control

ven32115-Mar-09 21:42

ven321

15-Mar-09 21:42

hello friends...

i have done it using FileUpload1.PostedFile.FileName ....
but the problem is everything is working fine in IE ....but not in mozilla...safari....

actually i want to get the full path of the selected file...not the file name only..........

thank you.....

Re: i want full path of the selected file..using FileUpload1 control

rakeshs31215-Mar-09 22:01

rakeshs312

15-Mar-09 22:01