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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.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

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.
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