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Subject:
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Checking for existing object
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Posted By:
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Quick209
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Post Date:
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2/14/2006 5:58:25 PM
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Hey all, I did not know what specifically this would fall under but it is using C# in general. I have a question with something that has been puzzling me for awhile now so I find other methods to do it but now I want to do this method. To put it simply, is there a command in C# to check to see if an object exists. I would like to check to see if a variable was created before creating one. The real reason for this is for Sessions on my asp.net page. I would like to see if a session is out there before modifying or creating one. Anyone know of a way to do this?
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Reply By:
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adam_kahtava
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Reply Date:
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2/14/2006 6:18:00 PM
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I'm not sure if this is what your looking for, but....
Here's an ASP.NET solution for detecting an ASP.NET Session Timeout: http://aspalliance.com/520
See the URL for further explanation.
public class basePageSessionExpire : System.Web.UI.Page{
public basePageSessionExpire(){}
override protected void OnInit(EventArgs e){
base.OnInit(e);
if (Context.Session != null){
if (Session.IsNewSession){
string szCookieHeader = Request.Headers["Cookie"];
if ((null != szCookieHeader) && (szCookieHeader.IndexOf("ASP.NET_SessionId") >= 0)){
Response.Redirect("sessionTimeout.htm");
}
}
}
}
}
- A.Kahtava
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