Evaluates a data-binding expression.
Assembly: System.Web (in System.Web.dll)
Syntax . . :: . Object
An object that results from the evaluation of the data-binding expression.
Protected Friend Function Eval ( _
expression As String _
) As Objectprotected internal Object Eval(
string expression
)protected public:
Object^ Eval(
String^ expression
)member Eval :
expression:string -> Object
Parameters
- expression
- Type: System
. . :: . String
The navigation path from the container to the public property value to place in the bound control property.
Return Value
Type: SystemAn object that results from the evaluation of the data-binding expression.
Exceptions
| Exception | Condition |
|---|---|
| InvalidOperationException | The data-binding method can be used only for controls contained on a Page. |
| ArgumentNullException | expression is - or - expression is an empty string (""). |
Remarks
The value of expression must evaluate to a public property.
The Eval method calls the DataBinder
Platforms
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.