ConnectionStringsExpressionBuilder.EvaluateExpression Method
Definition
Important
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Returns a value from the <connectionStrings> 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 expression.
- 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 <connectionStrings> section of the Web.config file.
Exceptions
The connection string name could not be found in the Web.config file.
Remarks
This method is called when an expression of the form <%$ ConnectionStrings: secureConnectionString %> is encountered in a page that is not compiled. It retrieves the appropriate value from the <connectionStrings> section of the Web.config file. This method overrides the EvaluateExpression method by calling the GetConnectionString method if a connection string is included in the parsedData parameter, or by calling the GetConnectionStringProviderName method if a connection string is not included in the parsedData parameter.
