Home Library Learn Downloads Support Community
Sign in | United States - English | |
This topic has not yet been rated - Rate this topic

TemplateControl.Eval Method (String, String)

.NET Framework 4.5

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

Evaluates a data-binding expression using the specified format string to display the result.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)
C#
C++
F#
VB
Copy 
protected internal string Eval(
	string expression,
	string format
)

Parameters

expression
Type: System.String

The navigation path from the container to the public property value to place in the bound control property.

format
Type: System.String

A .NET Framework format string to apply to the result.

Return Value

Type: System.String
A string that results from the evaluation of the data-binding expression and conversion to a string type.
Exception Condition
InvalidOperationException

The data-binding method can only be used for controls contained on a Page.

ArgumentNullException

expression is null.

- or -

expression is an empty string ("").

The value of expression must evaluate to a public property.

The Eval method calls the Eval method using the GetDataItem method to resolve the object reference that the expression is evaluated against.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

Windows 8 Consumer Preview, Windows Server 8 Beta, Windows 7, Windows Server 2008 SP2, Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Did you find this helpful?
(1500 characters remaining)