How to enable the "Option Strict" and "Option Explicit" statements in Visual Basic applications (911793)

INTRODUCTION

This article describes how to enable the Option Strict and Option Explicit statements in Microsoft Visual Basic applications for code-behind files and files that are contained in the App_Code folder.

MORE INFORMATION

To enable the Option Strict and Option Explicit statements in the code-behind files and files that are contained in the App_Code folder of a Visual Basic application, override the compiler configuration in the system.codedom section of the Web.config file for the application. To do this, add the following code to the Web.config file:

	<system.codedom>
		<compilers>
		<compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" warningLevel="0"  />
		<compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" warningLevel="0" />
		</compilers>
	</system.codedom>

REFERENCES

For more information about how to create the Web.config file for an ASP.NET application, click the following article number to view the article in the Microsoft Knowledge Base:

815179 How to create the Web.config file for an ASP.NET application