Inner exception

[stuart]

Hi,

Is it possible to find out if an exception has an inner exception or not.

for example if I catch an exception of type "System.Web.HttpException"

it is likely (but not definate) that the error conatians an inner exception.

what I would like to do is determine if the exception has an inner exception
and the act on it.
I don't just want to call innerexception because I am assuming another
exception will be thrown if an inner exception does not exist.

thanks in advance for your help.

cheers

martin.

[Rasika Wijayaratne]

You can catch the "outer"/ main exception and then check its inner exception property like so
[C#
if(ex.InnerException != null
Response.Write(ex.InnerException.ToString())

Here are complete code samples

[C#
private void Page_Load(object sender, System.EventArgs e

tr

Method1();
}
catch(Exception ex

if(ex.InnerException != null
Response.Write(ex.InnerException.ToString())
}
void Method1(

tr

Method2();
}
catch(Exception e

throw new Exception("E2", e)
}
void Method2(

throw new Exception("E1");
[Visual Basic
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Loa
Tr
Method1(
Catch ex As Exceptio
If Not ex.InnerException Is Nothing The
Response.Write(ex.InnerException.ToString()
End If
End Try
End Su

Function Method1(
Tr
Method2(
Catch e As Exceptio
Throw New Exception("E2", e
End Try
End Function

Function Method2(
Throw New Exception("E1"
End Functio

===========
Rasika Wijayaratn

[stuart]

Thank you
"Rasika Wijayaratne" <ra**********@luckymail.com> wrote in message
news:0E**********************************@microsof t.com...

You can catch the "outer"/ main exception and then check its inner exception property like so: [C#]
if(ex.InnerException != null)
Response.Write(ex.InnerException.ToString());
Here are complete code samples:

[C#]
private void Page_Load(object sender, System.EventArgs e)
{
try
{
Method1();
}
catch(Exception ex)
{
if(ex.InnerException != null)
Response.Write(ex.InnerException.ToString());
}
}

void Method1()
{
try
{
Method2();
}
catch(Exception e)
{
throw new Exception("E2", e);
}
}

void Method2()
{
throw new Exception("E1");
}
[Visual Basic]
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Try
Method1()
Catch ex As Exception
If Not ex.InnerException Is Nothing Then
Response.Write(ex.InnerException.ToString())
End If
End Try
End Sub

Function Method1()
Try
Method2()
Catch e As Exception
Throw New Exception("E2", e)
End Try
End Function

Function Method2()
Throw New Exception("E1")
End Function

============
Rasika Wijayaratne