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ImageField::GetValue Method

Retrieves the value of the specified field from the specified control.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

protected:
virtual Object^ GetValue(
	Control^ controlContainer, 
	String^ fieldName, 
	PropertyDescriptor^% cachedDescriptor
)

Parameters

controlContainer
Type: System.Web.UI::Control

The Control that contains the field value.

fieldName
Type: System::String

The name of the field for which to retrieve the value.

cachedDescriptor
Type: System.ComponentModel::PropertyDescriptor%

A PropertyDescriptor, passed by reference, that represents the properties of the field.

Return Value

Type: System::Object
The value of the specified field.

ExceptionCondition
HttpException

The controlContainer parameter is nullptr.

- or -

The data item associated with the container control is nullptr.

- or -

The field specified by the fieldName parameter could not be found.

The GetValue method is a helper method used by the ImageField object to determine the value of the specified field.

Notes to Inheritors:

When extending the ImageField object, you can override this method to provide custom routine to determine a field's value.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0
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