AppSettingsExpressionBuilder.EvaluateExpression Method

Returns a value from the <appSettings> section of the Web.config file.

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

public:
virtual Object^ EvaluateExpression (
	Object^ target, 
	BoundPropertyEntry^ entry, 
	Object^ parsedData, 
	ExpressionBuilderContext^ context
) override
public Object EvaluateExpression (
	Object target, 
	BoundPropertyEntry entry, 
	Object parsedData, 
	ExpressionBuilderContext context
)
public override function EvaluateExpression (
	target : Object, 
	entry : BoundPropertyEntry, 
	parsedData : Object, 
	context : ExpressionBuilderContext
) : Object
Not applicable.

Parameters

target

The object that contains the property entry.

entry

The property to which the expression is bound..

parsedData

The object that represents parsed data as returned by ParseExpression.

context

Properties for the control or page.

Return Value

The Object associated with a key in the <appSettings> section of the Web.config file.

This method is called when an expression of the form <%$ AppSettings: someApplicationSetting %> is encountered in a no-compile page. It retrieves the appropriate value from the key/value pairs in the <appSettings> section of the Web.config file. This method overrides EvaluateExpression by calling the GetAppSetting method with the Expression property as the key parameter, the Name property on the PropertyEntry.PropertyInfo property as the propertyName parameter, and the Type of the target parameter as the targetType parameter.

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

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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