RouteValueDictionary::TryGetValue Method (String^, Object^%)

.NET Framework (current version)

Gets a value that indicates whether a value is associated with the specified key.

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

Syntax

public:
virtual bool TryGetValue(
	String^ key,
	[OutAttribute] Object^% value
) sealed

Parameters

key: Type: System::String^
The key of the value to get.

value: Type: System::Object^%
When this method returns, contains the value that is associated with the specified key, if the key is found; otherwise, contains the appropriate default value for the type of the value parameter that you provided as an out parameter. This parameter is passed uninitialized.

Return Value

Type: System::Boolean

true if the dictionary contains an element that has the specified key; otherwise, false.

Implements

IDictionary<TKey, TValue>::TryGetValue(TKey, TValue%)

Remarks

This method combines the functionality of the ContainsKey method and the Item property.

If the key is not found, the value parameter is assigned the appropriate default value for the type, such as 0 (zero) for integer types, false for Boolean types, and null for reference types.

Version Information

.NET Framework
Available since 3.5