This documentation is archived and is not being maintained.

ResourceExpressionFields Class

Contains the fields from a parsed resource expression.

Namespace:  System.Web.Compilation
Assembly:  System.Web (in System.Web.dll)

[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class ResourceExpressionFields

When a page is parsed, the values contained in a resource expression are parsed and stored in an instance of the ResourceExpressionFields class. This ResourceExpressionFields object contains two fields, ClassKey and ResourceKey. These fields are drawn from the values of a resource expression in either the explicit (<%$ Resources: ClassKey, ResourceKey %>) or implicit (meta:resourcekey="ResourceKey") form.

The ClassKey property identifies the class name of a resource that is mapped to a resource file. For example, to reference a resource file named Financial.resx, or a localized version such as Financial.en-GB.resx, the resource expression would appear as <%$ Resources: Financial, ResourceKey %>. After parsing, the ClassKey property would return "Financial" as its value.

The ResourceKey property identifies the particular key/value pair to be retrieved from the file. If the Financial.resx file contains a key called Currency, that value could be specified with the resource expression <%$ Resources: Financial, Currency %>. After parsing, the ResourceKey property would return "Currency" as its value.

The resource expression is parsed through the ParseExpression method.

Caution noteCaution:

Sensitive information should not be stored in a resource file.


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0