ASP.NET How to get HttpException ErrorCode

Question

I'm trying to catch and handle a specific HttpException, namely "The remote host closed the connection. The error code is 0x800704CD."

My intention is to add a Catch for the HttpException to the relevant Try block and test for the error code that is generated. Sample code:

Try
    // Do some stuff
Catch exHttp As HttpException
    If exHttp.ErrorCode.ToString() = "0x800704CD" Then DoSomething()
Catch ex As Exception
    // Generic error handling
End Try

But I can't work out how to extract the error code displayed in the exception (i.e. "0x800704CD") from the HttpException object. Converting the integer value of the ErrorCode property to hex returns "800704CD" so clearly I'm not understanding how this code is generated.

Thanks.

in the sample code you are assigning 0x800704CD whicgh should generate another exception — Saddam Abu Ghaida
– Saddam Abu Ghaida, Commented Nov 19, 2012 at 12:41
have you tried to print the stack trace and see what does it have — Saddam Abu Ghaida
– Saddam Abu Ghaida, Commented Nov 19, 2012 at 12:42
exHttp.ErrorCode.ToString() returns the integer value of the error code, converted to string e.g. "-2147023667" — AGB
– AGB, Commented Nov 19, 2012 at 12:54

Frost · Accepted Answer · 2012-11-19 13:51:35Z

4

Try the Below Code:

 Try
    // Do some stuff
        Catch exHttp As HttpException
            If exHttp.ErrorCode = &H800704CD Then DoSomething()
        Catch ex As Exception
    // Generic error handling
        End Try

answered Nov 19, 2012 at 13:51

Frost

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2 Comments

AGB Over a year ago

Thanks RG ATHISH, adding the &H works. Could you explain why though?

RGA Over a year ago

0x800704CD for C#.net , &H800704CD for vb.net

user3285954 · Accepted Answer · 2014-03-22 17:29:45Z

0

ErrorCode property is an integer so just test for integer value, no reason to convert to hexadecimal or string.

0x in most programming languages means the following characters denote a hexadecimal number, i.e. 0x800704CD means 800704CD will be interpreted as a hexadecimal number. For VB use &H.

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