Performance Profiling Parse vs. TryParse vs. ConvertTo

re: Performance Profiling Parse vs. TryParse vs. ConvertTo

deepIce2 — Tue, 20 Dec 2005 07:31:33 GMT

Well a problem with tryparse is that it is sooo tedious to use - yolu have to do this:

ret = Int32.TryParse(str, out intValue);

if (ret)

{

intList.Add(intValue);

}

instead of this:

intValue = Int32.Parse(str);

intList.Add(intValue)

re: Performance Profiling Parse vs. TryParse vs. ConvertTo

Wedgebert — Tue, 20 Dec 2005 18:18:27 GMT

You're kind of comparing apples to oranges there. You're doing error checking for TryParse but not for Parse.

In reality it would be

Try
intValue = Int32.Parse(str)
intList.Add(intValue)
Catch Ex As FormatException
' Error Handling
End Try

vs

If Int32.TryParse(str, intValue) Then
intList.Add(intValue)
Else
' Error Handling
End If

re: Performance Profiling Parse vs. TryParse vs. ConvertTo

Fredrik — Thu, 22 Dec 2005 16:11:59 GMT

deepIce2, well you didn't include a try/catch around your Int32.Parse example - if you had, TryParse would be less lines of code ;) And also, instead of :

ret = Int32.TryParse(str, out intValue);
if (ret)
{
intList.Add(intValue);
}

why not just do

if(Int32.TryParse(str, out intValue);
{
intList.Add(intValue);
}

Personally I love TryParse - it's more efficient and faster to work with :)

re: Performance Profiling Parse vs. TryParse vs. ConvertTo

ianhu — Fri, 23 Dec 2005 01:10:25 GMT

A couple of folks have accused me of comparing apples to oranges, and I must admit that they have me nailed. I *was* comparing apples to oranges, but I was also doing it on purpose ;-). I was just showing how much time you do save by doing your own basic error checking with TryParse as opposed to just catching the exceptions thrown by Parse.

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Performance Profiling Parse vs. TryParse vs. ConvertTo

re: Performance Profiling Parse vs. TryParse vs. ConvertTo

re: Performance Profiling Parse vs. TryParse vs. ConvertTo

re: Performance Profiling Parse vs. TryParse vs. ConvertTo

re: Performance Profiling Parse vs. TryParse vs. ConvertTo

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TryParse contre Parse, ou pourquoi éviter les exceptions "inutiles"