Qbservable.Do<TSource> Method (IQbservable<TSource>, Expression<Action<TSource>>)

Invokes an action for each element in the queryable observable sequence and invokes an action upon graceful termination of the queryable observable sequence.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive.Providers (in System.Reactive.Providers.dll)

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function Do(Of TSource) ( _
    source As IQbservable(Of TSource), _
    onNext As Expression(Of Action(Of TSource)) _
) As IQbservable(Of TSource)

'Usage
Dim source As IQbservable(Of TSource)
Dim onNext As Expression(Of Action(Of TSource))
Dim returnValue As IQbservable(Of TSource)

returnValue = source.Do(onNext)

public static IQbservable<TSource> Do<TSource>(
    this IQbservable<TSource> source,
    Expression<Action<TSource>> onNext
)

[ExtensionAttribute]
public:
generic<typename TSource>
static IQbservable<TSource>^ Do(
    IQbservable<TSource>^ source, 
    Expression<Action<TSource>^>^ onNext
)

static member Do : 
        source:IQbservable<'TSource> * 
        onNext:Expression<Action<'TSource>> -> IQbservable<'TSource> 

JScript does not support generic types and methods.

Type Parameters

• TSource
  The type of source

Parameters

• source
  Type: System.Reactive.Linq.IQbservable<TSource>
  The source sequence.

• onNext
  Type: System.Linq.Expressions.Expression<Action<TSource>>
  The action to invoke for each element in the queryable observable sequence.

Return Value

Type: System.Reactive.Linq.IQbservable<TSource>
The source sequence with the side-effecting behavior applied.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQbservable<TSource>. When you use instance method syntax to call this method, omit the first parameter. For more information, see or .

See Also

Reference

Qbservable Class

Do Overload

System.Reactive.Linq Namespace

Qbservable.Do<TSource> Method (IQbservable<TSource>, Expression<Action<TSource>>, Expression<Action<Exception>>)

Invokes an action for each element in the queryable observable sequence and invokes an action upon exceptional termination of the queryable observable sequence.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive.Providers (in System.Reactive.Providers.dll)

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function Do(Of TSource) ( _
    source As IQbservable(Of TSource), _
    onNext As Expression(Of Action(Of TSource)), _
    onError As Expression(Of Action(Of Exception)) _
) As IQbservable(Of TSource)

'Usage
Dim source As IQbservable(Of TSource)
Dim onNext As Expression(Of Action(Of TSource))
Dim onError As Expression(Of Action(Of Exception))
Dim returnValue As IQbservable(Of TSource)

returnValue = source.Do(onNext, onError)

public static IQbservable<TSource> Do<TSource>(
    this IQbservable<TSource> source,
    Expression<Action<TSource>> onNext,
    Expression<Action<Exception>> onError
)

[ExtensionAttribute]
public:
generic<typename TSource>
static IQbservable<TSource>^ Do(
    IQbservable<TSource>^ source, 
    Expression<Action<TSource>^>^ onNext, 
    Expression<Action<Exception^>^>^ onError
)

static member Do : 
        source:IQbservable<'TSource> * 
        onNext:Expression<Action<'TSource>> * 
        onError:Expression<Action<Exception>> -> IQbservable<'TSource> 

JScript does not support generic types and methods.

Type Parameters

• TSource
  The type of source.

Parameters

• source
  Type: System.Reactive.Linq.IQbservable<TSource>
  The source sequence.

• onNext
  Type: System.Linq.Expressions.Expression<Action<TSource>>
  The action to invoke for each element in the queryable observable sequence.

• onError
  Type: System.Linq.Expressions.Expression<Action<Exception>>
  The action to invoke upon exceptional termination of the queryable observable sequence.

Return Value

Type: System.Reactive.Linq.IQbservable<TSource>
The source sequence with the side-effecting behavior applied.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQbservable<TSource>. When you use instance method syntax to call this method, omit the first parameter. For more information, see or .

See Also

Reference

Qbservable Class

Do Overload

System.Reactive.Linq Namespace

Qbservable.Do<TSource> Method (IQbservable<TSource>, IObserver<TSource>)

Invokes an action for each element in the queryable observable sequence.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive.Providers (in System.Reactive.Providers.dll)

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function Do(Of TSource) ( _
    source As IQbservable(Of TSource), _
    observer As IObserver(Of TSource) _
) As IQbservable(Of TSource)

'Usage
Dim source As IQbservable(Of TSource)
Dim observer As IObserver(Of TSource)
Dim returnValue As IQbservable(Of TSource)

returnValue = source.Do(observer)

public static IQbservable<TSource> Do<TSource>(
    this IQbservable<TSource> source,
    IObserver<TSource> observer
)

[ExtensionAttribute]
public:
generic<typename TSource>
static IQbservable<TSource>^ Do(
    IQbservable<TSource>^ source, 
    IObserver<TSource>^ observer
)

static member Do : 
        source:IQbservable<'TSource> * 
        observer:IObserver<'TSource> -> IQbservable<'TSource> 

JScript does not support generic types and methods.

Type Parameters

• TSource
  The type of source

Parameters

• source
  Type: System.Reactive.Linq.IQbservable<TSource>
  The source sequence.

• observer
  Type: System.IObserver<TSource>
  The action to invoke for each element in the queryable observable sequence.

Return Value

Type: System.Reactive.Linq.IQbservable<TSource>
The source sequence with the side-effecting behavior applied.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQbservable<TSource>. When you use instance method syntax to call this method, omit the first parameter. For more information, see or .

See Also

Reference

Qbservable Class

Do Overload

System.Reactive.Linq Namespace

Qbservable.Do<TSource> Method (IQbservable<TSource>, Expression<Action<TSource>>, Expression<Action<Exception>>, Expression<Action>)

Invokes an action for each element in the queryable observable sequence, and invokes an action upon graceful or exceptional termination of the queryable observable sequence.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive.Providers (in System.Reactive.Providers.dll)

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function Do(Of TSource) ( _
    source As IQbservable(Of TSource), _
    onNext As Expression(Of Action(Of TSource)), _
    onError As Expression(Of Action(Of Exception)), _
    onCompleted As Expression(Of Action) _
) As IQbservable(Of TSource)

'Usage
Dim source As IQbservable(Of TSource)
Dim onNext As Expression(Of Action(Of TSource))
Dim onError As Expression(Of Action(Of Exception))
Dim onCompleted As Expression(Of Action)
Dim returnValue As IQbservable(Of TSource)

returnValue = source.Do(onNext, onError, _
    onCompleted)

public static IQbservable<TSource> Do<TSource>(
    this IQbservable<TSource> source,
    Expression<Action<TSource>> onNext,
    Expression<Action<Exception>> onError,
    Expression<Action> onCompleted
)

[ExtensionAttribute]
public:
generic<typename TSource>
static IQbservable<TSource>^ Do(
    IQbservable<TSource>^ source, 
    Expression<Action<TSource>^>^ onNext, 
    Expression<Action<Exception^>^>^ onError, 
    Expression<Action^>^ onCompleted
)

static member Do : 
        source:IQbservable<'TSource> * 
        onNext:Expression<Action<'TSource>> * 
        onError:Expression<Action<Exception>> * 
        onCompleted:Expression<Action> -> IQbservable<'TSource> 

JScript does not support generic types and methods.

Type Parameters

• TSource
  The type of source.

Parameters

• source
  Type: System.Reactive.Linq.IQbservable<TSource>
  The source sequence.

• onNext
  Type: System.Linq.Expressions.Expression<Action<TSource>>
  The action to invoke for each element in the queryable observable sequence.

• onError
  Type: System.Linq.Expressions.Expression<Action<Exception>>
  The action to invoke upon exceptional termination of the queryable observable sequence.

• onCompleted
  Type: System.Linq.Expressions.Expression<Action>
  The action to invoke upon graceful termination of the queryable observable sequence.

Return Value

Type: System.Reactive.Linq.IQbservable<TSource>
The source sequence with the side-effecting behavior applied.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQbservable<TSource>. When you use instance method syntax to call this method, omit the first parameter. For more information, see or .

See Also

Reference

Qbservable Class

Do Overload

System.Reactive.Linq Namespace

Qbservable.Do<TSource> Method (IQbservable<TSource>, Expression<Action<TSource>>, Expression<Action>)

Invokes an action for each element in the queryable observable sequence, and invokes an action upon graceful or exceptional termination of the queryable observable sequence.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive.Providers (in System.Reactive.Providers.dll)

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function Do(Of TSource) ( _
    source As IQbservable(Of TSource), _
    onNext As Expression(Of Action(Of TSource)), _
    onCompleted As Expression(Of Action) _
) As IQbservable(Of TSource)

'Usage
Dim source As IQbservable(Of TSource)
Dim onNext As Expression(Of Action(Of TSource))
Dim onCompleted As Expression(Of Action)
Dim returnValue As IQbservable(Of TSource)

returnValue = source.Do(onNext, onCompleted)

public static IQbservable<TSource> Do<TSource>(
    this IQbservable<TSource> source,
    Expression<Action<TSource>> onNext,
    Expression<Action> onCompleted
)

[ExtensionAttribute]
public:
generic<typename TSource>
static IQbservable<TSource>^ Do(
    IQbservable<TSource>^ source, 
    Expression<Action<TSource>^>^ onNext, 
    Expression<Action^>^ onCompleted
)

static member Do : 
        source:IQbservable<'TSource> * 
        onNext:Expression<Action<'TSource>> * 
        onCompleted:Expression<Action> -> IQbservable<'TSource> 

JScript does not support generic types and methods.

Type Parameters

• TSource
  The type of source.

Parameters

• source
  Type: System.Reactive.Linq.IQbservable<TSource>
  The source sequence.

• onNext
  Type: System.Linq.Expressions.Expression<Action<TSource>>
  The action to invoke for each element in the queryable observable sequence.

• onCompleted
  Type: System.Linq.Expressions.Expression<Action>
  The action to invoke upon graceful termination of the queryable observable sequence.

Return Value

Type: System.Reactive.Linq.IQbservable<TSource>
The source sequence with the side-effecting behavior applied.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQbservable<TSource>. When you use instance method syntax to call this method, omit the first parameter. For more information, see or .

See Also

Reference

Qbservable Class

Do Overload

System.Reactive.Linq Namespace