Qbservable.Generate<TState, TResult> Method (IQbservableProvider, TState, Expression<Func<TState, Boolean>>, Expression<Func<TState, TState>>, Expression<Func<TState, TResult>>)
Generates a queryable observable sequence by iterating a state from an initial state until the condition fails.
Namespace: System.Reactive.Linq
Assembly: System.Reactive.Providers (in System.Reactive.Providers.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function Generate(Of TState, TResult) ( _
provider As IQbservableProvider, _
initialState As TState, _
condition As Expression(Of Func(Of TState, Boolean)), _
iterate As Expression(Of Func(Of TState, TState)), _
resultSelector As Expression(Of Func(Of TState, TResult)) _
) As IQbservable(Of TResult)
'Usage
Dim provider As IQbservableProvider
Dim initialState As TState
Dim condition As Expression(Of Func(Of TState, Boolean))
Dim iterate As Expression(Of Func(Of TState, TState))
Dim resultSelector As Expression(Of Func(Of TState, TResult))
Dim returnValue As IQbservable(Of TResult)
returnValue = provider.Generate(initialState, _
condition, iterate, resultSelector)
public static IQbservable<TResult> Generate<TState, TResult>(
this IQbservableProvider provider,
TState initialState,
Expression<Func<TState, bool>> condition,
Expression<Func<TState, TState>> iterate,
Expression<Func<TState, TResult>> resultSelector
)
[ExtensionAttribute]
public:
generic<typename TState, typename TResult>
static IQbservable<TResult>^ Generate(
IQbservableProvider^ provider,
TState initialState,
Expression<Func<TState, bool>^>^ condition,
Expression<Func<TState, TState>^>^ iterate,
Expression<Func<TState, TResult>^>^ resultSelector
)
static member Generate :
provider:IQbservableProvider *
initialState:'TState *
condition:Expression<Func<'TState, bool>> *
iterate:Expression<Func<'TState, 'TState>> *
resultSelector:Expression<Func<'TState, 'TResult>> -> IQbservable<'TResult>
JScript does not support generic types and methods.
Type Parameters
- TState
The type of state.
- TResult
The type of result.
Parameters
- provider
Type: System.Reactive.Linq.IQbservableProvider
The local Qbservable provider.
- initialState
Type: TState
The initial state.
- condition
Type: System.Linq.Expressions.Expression<Func<TState, Boolean>>
The condition to terminate generation.
- iterate
Type: System.Linq.Expressions.Expression<Func<TState, TState>>
The iteration step function.
- resultSelector
Type: System.Linq.Expressions.Expression<Func<TState, TResult>>
The selector function for results produced in the sequence.
Return Value
Type: System.Reactive.Linq.IQbservable<TResult>
The generated sequence.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IQbservableProvider. When you use instance method syntax to call this method, omit the first parameter. For more information, see or .