DataBinder.Eval Method

System.Web.UI Namespace DataBinder Class

Uses reflection to parse and evaluate a data binding expression against an object at runtime. This method allows RAD designers, such as Visual Studio .NET, to easily generate and parse data binding syntax. This method can also be used declaratively on a Web Forms page to simplify casting from one type to another.

1. Evaluates data binding expressions at runtime.

[ VB ] Overloads Public Shared Function Eval ( Object, String ) As Object

[ C# ] public static object Eval ( Object, string );

[ C++ ] public: static Object* Eval ( Object*, String );

[ JScript ] public static function Eval ( Object, String ) : Object;

2. Evaluates data binding expressions at runtime and formats the output as text to be displayed in the requesting browser.

[ VB ] Overloads Public Shared Function Eval ( Object, String, String ) As String

[ C# ] public static string Eval ( Object, string, string );

[ C++ ] public: static String* Eval ( Object*, String, String );

[ JScript ] public static function Eval ( Object, String, String ) : String;

The following example demonstrates how you can use the Eval method to declaratively bind to a Price field. This example uses container syntax that assumes you are using one of the list Web server controls. The format parameter formats the number as a locale-specific currency string that will be displayed by the requesting browser.

NOTE: This example shows how to use one of the overloaded versions of Eval. For other examples that may be available, see the individual overload topics.

<%# DataBinder.Eval ( Container.DataItem, "Price", "{0:c}" %>

DataBinder Members

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DataBinder.Eval Method

Overload List

Example

See Also