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Control::GetUniqueIDRelativeTo Method

.NET Framework 4.6 and 4.5

Returns the prefixed portion of the UniqueID property of the specified control.

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

public:
String^ GetUniqueIDRelativeTo(
	Control^ control
)

Parameters

control
Type: System.Web.UI::Control

A control that is within a naming container.

Return Value

Type: System::String
The prefixed portion of the UniqueID property of the specified control.

ExceptionCondition
InvalidOperationException

The NamingContainer property of control is nullptr.

ArgumentNullException

control is nullptr.

The UniqueID property of a control is generated by adding a prefix to the control's ID property. The prefix is composed of the UniqueID property of the control's naming container concatenated with a separator character. If the naming container is the page, there is no prefix. This method returns the prefix string. If there is no prefix string, it returns the UniqueID value of the control.

.NET Framework

Supported in: 4.6, 4.5, 4
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