AppSettingsExpressionBuilder.EvaluateExpression Method
Definition
Important
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Returns a value from the <appSettings> section of the Web.config file.
public:
override System::Object ^ EvaluateExpression(System::Object ^ target, System::Web::UI::BoundPropertyEntry ^ entry, System::Object ^ parsedData, System::Web::Compilation::ExpressionBuilderContext ^ context);public override object EvaluateExpression (object target, System.Web.UI.BoundPropertyEntry entry, object parsedData, System.Web.Compilation.ExpressionBuilderContext context);override this.EvaluateExpression : obj * System.Web.UI.BoundPropertyEntry * obj * System.Web.Compilation.ExpressionBuilderContext -> objPublic Overrides Function EvaluateExpression (target As Object, entry As BoundPropertyEntry, parsedData As Object, context As ExpressionBuilderContext) As ObjectParameters
- target
- Object
The object that contains the property entry.
- entry
- BoundPropertyEntry
The property to which the expression is bound.
- parsedData
- Object
The object that represents parsed data as returned by ParseExpression(String, Type, ExpressionBuilderContext).
- context
- ExpressionBuilderContext
Properties for the control or page.
Returns
The Object associated with a key in the <appSettings> section of the Web.config file.
Remarks
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.
