Writing of error logs in. Net

Error

1 executing stored procedures in. CS
 2
 3 try
 4
 5 {}
 6
 7 catch (Exception ex)
& nbsp;8    {
 9     cm. Connection.close ();
10     Qiao. Value = "Fail";
11     publicunit.saveerror (ex,this. Context,this. Request);
12   }

14 

16 Write log writing
-
-public static void Saveerror (Exception ex,httpcontext hc,httpreques T hr)
19   {
20    string temp;
21    StreamWriter SW;

23   //If there is a file
24    if (file.exists (HR). physicalapplicationpath+@ "\error.txt")
25    {
26     SW = File.appendtext (HR. physicalapplicationpath+@ "\error.txt");
27     temp = DateTime.Now.ToString () + "-------------------------------------------------- ----------------------------------\ n ";
28     temp = "error message:" + ex. Message + "\ n";
29     temp = "The name of the application or object that caused the error:" + ex. Source + "\ n";
30     temp = "Stack contents:" + ex. StackTrace + "\ n";
31     Temp + = "method that throws an exception:" + ex. TargetSite + "\ n";
32     temp = "error page" +hr. Rawurl + "\ n";
a
34     SW. WriteLine (temp);
35     SW. Close ();
36   }
37  }