4GuysFromRolla.com - ASPFAQS.com : ASP.NET : How do I convert a string into an Integer?

4GuysFromRolla.com : ASP FAQS : ASP.NET

Question: How do I convert a string into an Integer?
[Print this FAQ]

Answer:

Due to changes in VB.NET and C#, when programming ASP.NET Web pages, developers must be aware of a variable's data type. Oftentimes, trying to assign a String variable to a variable of type Integer will result in a "Type Mismatch" error.

To successfully convert a String into an Integer, you can use one of two techniques: via the Parse method of the Int32 class

// C# code String sNumber = "123"; int iNumber = Int32.Parse(sNumber); ' VB.NET code Dim sNumber as String = "123" Dim iNumber as Integer = Int32.Parse(sNumber)

or via the Convert class:

// C# code String sNumber = "123"; int iNumber = Convert.ToInt32(sNumber); ' VB.NET code Dim sNumber as String = "123" Dim iNumber as Integer = Convert.ToInt32(sNumber)

And there you have it! To learn more about ASP.NET be sure to check out the ASP.NET Article Index!

Happy Programming!

FAQ posted by Scott Mitchell at 7/10/2001 3:54:31 PM to the ASP.NET category. This FAQ has been viewed 123,762 times.

Do you have a FAQ you'd like to suggest? Suggestions? Comments? If so, send it in! Also, if you'd like to be a FAQ Admin (creating/editing FAQs), let me know! If you are looking for other FAQs, be sure to check out the 4Guys FAQ and Commonly Asked Messageboard Questions!

Most Viewed FAQs:
1.) How can I format numbers and date/times using ASP.NET? For example, I want to format a number as a currency. (761643 views)
2.) I am using Access and getting a 80004005 error (or a [Microsoft][ODBC Microsoft Access Driver] The Microsoft Jet database engine cannot open the file '(unknown)' error) when trying to open a connection! How can I fix this problem? (207777 views)
3.) How can I convert a Recordset into an array? Also, how can I convert an array into a Recordset? (202549 views)
4.) How can I quickly sort a VBScript array? (196039 views)
5.) How can I find out if a record already exists in a database? If it doesn't, I want to add it. (156019 views)
6.) How do I display data on a web page using arrays instead of Do...While...MoveNext...???... (152331 views)
7.) When I get a list of all files in a directory via the FileSystemObject, they aren't ordered in any reasonable way. How can I sort the files by name? Or by size? Or by date created? Or... (140381 views)
8.) For session variables to work, must the Web visitor have cookies enabled? (110162 views)
9.) Can I send emails without using CDONTS? (107083 views)
10.) How can I take the result of a SELECT...MULTIPLE or a group of same-named checkboxes and turn it into a query? That is, if the user selects 3 answers, how can I construct a query that looks for all 3? (106308 views)
Last computed at 9/17/2007 3:22:00 AM

Whitepapers and eBooks

Webcasts

Downloads and eKits

Tutorials and Demos