In asp classic: How can I make sure that a variable can be cast as an int?

Posted by Tchalvak on Stack Overflow See other posts from Stack Overflow or by Tchalvak
Published on 2010-04-30T00:27:08Z Indexed on 2010/04/30 0:37 UTC
Read the original article Hit count: 207

Filed under:

asp-classic

|

casting

The following function was suggested to me:

' Defines a forced casting function, which "casts" anything that it can't detect as a number to zero.
    Function MakeInteger(val)
      If IsNumeric(val) Then
        MakeInteger = CInt(val)
      Else
        MakeInteger = 0
      End If
    End Function

Unfortunately there appear to be some things that return true for IsNumeric() but still can't be cast as an int. Is there any better check to use?

© Stack Overflow or respective owner

Related posts about asp-classic

Looping through an array and calling a function on each pass in v-basic / asp classic

as seen on Stack Overflow - Search for 'Stack Overflow'
How do I loop through an array and call a function on each pass? At the minute I'm trying the following... if Request.Form("authorize") <> "" then dim post_ids, ids post_ids = Request.form("authorize") ids = split(post_ids, ",") For i = LBound(ids) to UBound(ids) … >>> More
ASP Classic Session Variable Not Always Getting Set

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a classic ASP site I'm maintaining and recently we wanted to do special rendering actions if the visitor was coming from one specific set of websites. So in the page where those visitors have to come through to get to our site, I put a simple line setting a session variable: <!-- #include… >>> More
ASP Classic page quit working

as seen on Stack Overflow - Search for 'Stack Overflow'
I've had a set of legacy pages running on my IIS7 server for at least a year. Sometime last week something changed and now this line: Response.Write CStr(myRS(0).name) & "=" & Cstr(myRS(0).value) which used to return nothing more exciting than the string: 'Updated=true' (the sproc processing… >>> More
in visual studio 2008, when I stop debugging an asp classic website visual studio always crashes

as seen on Stack Overflow - Search for 'Stack Overflow'
We are running visual studio 2008 (with the service pack) and having troubles when we are debugging an asp classic website. We can attach to the w3p process and debug just fine. breakpoints work, we can view variable values. The difficulty arises when it comes time to detach or stop the debugger… >>> More
HTML to PDF conversion from hosted ASP classic?

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to convert HTML to PDF on the fly from a hosted ASP classic page. WkHtmlToPDF is great, but unfortunately requires installation on the server which is not possible in this case. Is there something out there that would do this? >>> More

Related posts about casting

Interface Casting vs. Class Casting

as seen on Stack Overflow - Search for 'Stack Overflow'
I've been led to believe that casting can, in certain circumstances, become a measurable hindrance on performance. This may be moreso the case when we start dealing with incoherent webs of nasty exception throwing\catching. Given that I wish to create more correct heuristics when it comes to programming… >>> More
Which casting technique is better for doing casting from upper class to lower class in C++

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi all, i want to cast from upper class pointer to lower class i.e from the base class pointer to derived class pointer. Should i use "Dynamic_cast" or "reinterpret_cast"? please advice me >>> More
Type Casting variables in PHP: Is there a practical example?

as seen on Programmers - Search for 'Programmers'
PHP, as most of us know, has weak typing. For those who don't, PHP.net says: PHP does not require (or support) explicit type definition in variable declaration; a variable's type is determined by the context in which the variable is used. Love it or hate it, PHP re-casts variables on-the-fly… >>> More
Explicit casting doesn't work in default model binding

as seen on Stack Overflow - Search for 'Stack Overflow'
I am using ASP.NET MVC2 and Entity Framework. I am going to simplify the situation a little; hopefully it will make it clearer, not more confusing! I have a controller action to create address, and the country is a lookup table (in other words, there is a one-to-many relationship between Country… >>> More
PHP Equivalent of Java Type-Casting Solution

as seen on Stack Overflow - Search for 'Stack Overflow'
Since PHP has no custom-class type-casting, how would I go about doing the PHP equivalent of this Java code: CustomBaseObject cusBaseObject = cusBaseObjectDao.readCustomBaseObjectById(id); ((CustomChildObject) cusBaseObject).setChildAttribute1(value1); ((CustomChildObject) cusBaseObject).setChildAttribute2(value2); In… >>> More