How to use try catch in VB.NET without overly broad catch

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Security audit result of my project showing error on
try
// code
catch
//rollback
//msg
end try

//--Report Shows an error on "End Try"
Error Message Is
The catch block at page.aspx.vb line 364 handles a broad swath of
exceptions, potentially trapping dissimilar issues or problems that should not be dealt with at this point in the program.

//Help Please//

What I have tried:

Im Try to remove "END TRY" but it shows error
Try

Catch

End try
is complete statement.

Posted 31-May-17 19:23pm

archer005

Updated 31-May-17 20:12pm

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OriginalGriff · Answer 1 · 2017-05-31T20:12:00

When you use Catch on it's own, it catches every exception that is thrown (and discards all the information on what happened at the same time).

VB

Dim Top As Double = 5
Dim Bottom As Double = 0
Dim Result As Integer = 0
Try
	Result = Top / Bottom
Catch ex As System.OverflowException
	MessageBox("Attempt to divide by zero:" + ex.Message)
End Try

Restricts the Catch to just the exceptions you can do something about.