Click or drag to resize
EnumerableExCaseTValue, TResult Method (FuncTValue, IDictionaryTValue, IEnumerableTResult, IEnumerableTResult)
Returns a sequence from a dictionary based on the result of evaluating a selector function, also specifying a default sequence.

Namespace: System.Linq
Assembly: System.Interactive (in System.Interactive.dll) Version: 1.2.0.0
Syntax
C#
Copy
public static IEnumerable<TResult> Case<TValue, TResult>(
	Func<TValue> selector,
	IDictionary<TValue, IEnumerable<TResult>> sources,
	IEnumerable<TResult> defaultSource
)

Parameters

selector
Type: SystemFuncTValue
Selector function used to pick a sequence from the given sources.
sources
Type: System.Collections.GenericIDictionaryTValue, IEnumerableTResult
Dictionary mapping selector values onto resulting sequences.
defaultSource
Type: System.Collections.GenericIEnumerableTResult
Default sequence to return in case there's no corresponding source for the computed selector value.

Type Parameters

TValue
Type of the selector value.
TResult
Result sequence element type.

Return Value

Type: IEnumerableTResult
The source sequence corresponding with the evaluated selector value; otherwise, the default source.
See Also