Retrieves the specified item from the Cache object. If the object is read thru the data source, put is against the given group and sub group.

Namespace: Alachisoft.NCache.Web.Caching
Assembly: Alachisoft.NCache.Web (in Alachisoft.NCache.Web.dll) Version: 4.3.0.0 (4.3.0.0)

Syntax

C#
public override Object Get(
	string key,
	string group,
	string subGroup,
	DSReadOption dsReadOpt
)
Visual Basic
Public Overrides Function Get ( 
	key As String,
	group As String,
	subGroup As String,
	dsReadOpt As DSReadOption
) As Object
Visual C++
public:
virtual Object^ Get(
	String^ key, 
	String^ group, 
	String^ subGroup, 
	DSReadOption dsReadOpt
) override

Parameters

key
Type: System..::..String
The identifier for the cache item to retrieve.
group
Type: System..::..String
The group of the cached object
subGroup
Type: System..::..String
The subGroup of the cached object
dsReadOpt
Type: Alachisoft.NCache.Web.Caching..::..DSReadOption

Return Value

Type: Object
The retrieved cache item, or a null reference (Nothing in Visual Basic) if the key is not found.

Remarks

Note: If exceptions are enabled through the ExceptionsEnabled setting, this property throws exception incase of failure.

Note: The group and subGroup parameters are used only if the object is read thru the data source. Otherwise the object will be returned from the cache whether it belongs to the given group and sub group or not.

Examples

The following example demonstrates how to retrieve the value cached for an ASP.NET text box server control.
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NCache.Cache.Get("MyTextBox.Value", "Customer", null);
Or simply in a class deriving from [!:Alachisoft.NCache.Web.UI.NPage] or [!:Alachisoft.NCache.Web.UI.NUserControl].
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Cache.Get("MyTextBox.Value", "group", "subGroup", "Customer", null);

Exceptions

ExceptionCondition
System..::..ArgumentNullExceptionkey contains a null reference (Nothing in Visual Basic).
System..::..ArgumentExceptionkey is not serializable.
System..::..ArgumentNullExceptiongroup contains a null reference (Nothing in Visual Basic).

See Also