Share via

Can I some how get application absolute url in application start event

Question

Wednesday, December 1, 2010 1:27 AM

Suppose my website address is like http://localhost/MyWebsite

I wanted to access this url in Application_start event in global.asax, Can i some how get it?

[I know i can get it via application_beginrequest or other event]

All replies (17)

Tuesday, December 7, 2010 9:53 PM âś…Answered

Hello Kamran,

Thank you for your coming back.

According to the document (Request is not available in this context exception in Application_Start) in the post above, I agree that we may not able to get the Application URL in the application_start event for all the IIS servers in a unique way.

On the other hand, I think relying on applicationj_beginrequest event is a good approach. We can get the Application URL and then store it in somewhere, a static variable for example. So the code might like:

public static string ApplicationURL = null;
protected void Application_BeginRequest(object sender, EventArgs e)
{
    if (ApplicationURL == null)
    {
        // Only assign the ApplicationURL once.

        // Remove the page path information.
        Regex regex = new Regex("(" + HttpContext.Current.Request.Url.AbsolutePath + ")$");

        ApplicationURL = regex.Replace(HttpContext.Current.Request.Url.AbsoluteUri, string.Empty);
    }
}

If you still have problem, please feel free to let me know.

Wednesday, December 1, 2010 1:59 AM

try this:

HttpContext.Current.Request.Url.ToString()

Wednesday, December 1, 2010 2:07 AM

 You can use VirtualPathUtility class. It has ToAbsolute() method.

string absolutePath = VirtualPathUtility.ToAbsolute("~/");

 

Regards, 

Huske

Wednesday, December 1, 2010 2:09 AM

Hi,

Please use tins for finding the url

Request.Url

OR 

HttpContext.Current.Request.Url

Wednesday, December 1, 2010 2:14 AM

Suppose my website address is like http://localhost/MyWebsite

I wanted to access this url in Application_start event in global.asax, Can i some how get it?

[I know i can get it via application_beginrequest or other event]

Your require problem already discuss in Asp.net forum. please visit below thread. You will be get your answer.

http://forums.asp.net/p/1555622/3824567.aspx

Thanks

Wednesday, December 1, 2010 2:50 AM

I have explicitily mentioned about to get it in Application_start event.[Httpcontext is null in that event].I very well know how to get it in Application_BeginRequest but my need is to get the base url in the application_start event

Wednesday, December 1, 2010 2:59 AM

why dont you try this ?

HttpContext.Current.Request.Url 

It works for me in Application_start event.

Wednesday, December 1, 2010 3:05 AM

kamii47 you can use this:

protected void Application_Start()
{
    RegisterRoutes(RouteTable.Routes);

    var context = new HttpContextWrapper(HttpContext.Current);
    var routeData = RouteTable.Routes.GetRouteData(context) ?? new RouteData();
    var requestContext = new RequestContext(context, routeData);
    var urlHelper = new UrlHelper(requestContext);
    var url = urlHelper.Action("Home", "Index");
    // TODO: do something with the url
}

Wednesday, December 1, 2010 3:18 AM

I am not using Asp.net MVC.I think above mentioned solution is only for asp.net MVC or isn't it?

@Huske
your mentioned solution give me string /Mywebsite instead of http://localhost.Mywebsite or http://localhost:645/Mywebsite [suppose it is a deployed there]

Wednesday, December 1, 2010 3:53 AM

Friday, December 3, 2010 3:08 PM

This works. Please try this in global.asax

void Application_Start(object sender, EventArgs e) 
    {
        StringBuilder sb2 = new StringBuilder();
        String pathstring1 = Context.Request.Url.AbsoluteUri;
        sb2.Append("Current Executing File Path = " + pathstring1.ToString() + "<br>");
        sb2.Append("Is Absolute = " + VirtualPathUtility.IsAbsolute(pathstring1).ToString() + "<br>");
        string x2 = sb2.ToString();
    }

 

 

Monday, December 6, 2010 1:52 AM

I am getting exception

Request is not available in this context.

Monday, December 6, 2010 2:16 AM

I am getting exception

Request is not available in this context.

After I tried, Context.Request is available in Application_Start() method of Global.asax.

Can we read your code so that we can try to find the difference between yours and ours?

Monday, December 6, 2010 2:25 AM

protected void Application_Start(object sender, EventArgs e)
{
    ...........  //some background thread get staqrted
    CheckForumsAnswer();//checking answer http://forums.asp.net/t/1628638.aspx
}

private void CheckForumsAnswer()
{
            try
            {
                if (Context != null)
                {
                    StringBuilder sb2 = new StringBuilder();
                    String pathstring1 = Context.Request.Url.AbsoluteUri;
                    sb2.Append("Current Executing File Path = " + pathstring1.ToString() + "<br>");
                    sb2.Append("Is Absolute = " + VirtualPathUtility.IsAbsolute(pathstring1).ToString() + "<br>");
                    string x2 = sb2.ToString();
                    LoggingHandler.Log("CheckForumsAnswer string is " +x2, EnumLogTypes.Info);
                }
                else
                {
                    LoggingHandler.Log("CheckForumsAnswer Contenxt is null ", EnumLogTypes.Info);
                }
            }
            catch (Exception ex)
            {
                LoggingHandler.Log("CheckForumsAnswer Exception", EnumLogTypes.Info);/// I am getting here when application start event fired
                LoggingHandler.Log(ex);
            }
}




My Exception Log is as follows


12/06/2010 11:37:37:0760 CheckForumsAnswer Exception
12/06/2010 11:37:37:0810 
//******************************************************************************************\\
Exception Occurs   At = 12/06/2010 11:37:37:0780
Exception  Type        = System.Web.HttpException
Exception Message      = Request is not available in this context
Exception Source       = System.Web
Exception  Stack Trace =    at System.Web.HttpContext.get_Request()
   at PresentationLayer.Global.CheckForumsAnswer()
\\******************************************************************************************//

Monday, December 6, 2010 2:45 AM

Hi Kamran,

Are you using IIS7 Integrated mode?

If so, I am sorry that this is the one of the common errors. Please see Request is not available in this context exception in Application_Start for more information.

Hope this helps.

Monday, December 6, 2010 4:05 AM

Thanks WenChao,

I am using IIS 7.My application will be deployed on IIS5.1, IIS 6, IIS 7 or IIS 7.5 .User are open to use any configuration [integrated mode or not]

From the above link I think i may not able to get the Application URL in the application_start event for all the IIS server in a unique way and might have to rely on applicationj_beginrequest event?

Am I correct in this conclusion?

Wednesday, December 8, 2010 1:16 AM

Thanks Wenchao,

 Till to date i have done exactly same implementation as you mentioned above.I were trying to avoid this check if (ApplicationURL == null)  on every Application_begin request. I think from the conclusion it is the only option left.

  • Last updated on