Qbservable

Qbservable.Catch<TSource> Method (IQbservable<TSource>, IObservable<TSource>)

Continues a queryable observable sequence that is terminated by an exception with the next queryable observable sequence.

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

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function Catch(Of TSource) ( _
    first As IQbservable(Of TSource), _
    second As IObservable(Of TSource) _
) As IQbservable(Of TSource)
'Usage
Dim first As IQbservable(Of TSource)
Dim second As IObservable(Of TSource)
Dim returnValue As IQbservable(Of TSource)

returnValue = first.Catch(second)
public static IQbservable<TSource> Catch<TSource>(
    this IQbservable<TSource> first,
    IObservable<TSource> second
)
[ExtensionAttribute]
public:
generic<typename TSource>
static IQbservable<TSource>^ Catch(
    IQbservable<TSource>^ first, 
    IObservable<TSource>^ second
)
static member Catch : 
        first:IQbservable<'TSource> * 
        second:IObservable<'TSource> -> IQbservable<'TSource> 
JScript does not support generic types and methods.

Type Parameters

  • TSource
    The type of source.

Parameters

  • first
    Type: System.Reactive.Linq.IQbservable<TSource>
    First queryable observable sequence whose exception (if any) is caught.

  • second
    Type: System.IObservable<TSource>
    The second queryable observable sequence used to produce results when an error occurred in the first sequence.

Return Value

Type: System.Reactive.Linq.IQbservable<TSource>
A queryable observable sequence containing the first sequence's elements, followed by the elements of the second sequence in case an exception occurred.

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

Catch Overload

System.Reactive.Linq Namespace

Qbservable.Catch<TSource> Method (IQbservableProvider, IEnumerable<IObservable<TSource>>)

Continues a queryable observable sequence that is terminated by an exception with the next queryableobservable sequence.

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

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function Catch(Of TSource) ( _
    provider As IQbservableProvider, _
    sources As IEnumerable(Of IObservable(Of TSource)) _
) As IQbservable(Of TSource)
'Usage
Dim provider As IQbservableProvider
Dim sources As IEnumerable(Of IObservable(Of TSource))
Dim returnValue As IQbservable(Of TSource)

returnValue = provider.Catch(sources)
public static IQbservable<TSource> Catch<TSource>(
    this IQbservableProvider provider,
    IEnumerable<IObservable<TSource>> sources
)
[ExtensionAttribute]
public:
generic<typename TSource>
static IQbservable<TSource>^ Catch(
    IQbservableProvider^ provider, 
    IEnumerable<IObservable<TSource>^>^ sources
)
static member Catch : 
        provider:IQbservableProvider * 
        sources:IEnumerable<IObservable<'TSource>> -> IQbservable<'TSource> 
JScript does not support generic types and methods.

Type Parameters

  • TSource
    The type of source.

Parameters

Return Value

Type: System.Reactive.Linq.IQbservable<TSource>
A queryable observable sequence containing elements from consecutive source sequences until a source sequence terminates successfully.

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 .

See Also

Reference

Qbservable Class

Catch Overload

System.Reactive.Linq Namespace

Qbservable.Catch<TSource> Method (IQbservableProvider, array<IObservable<TSource>[])

Continues a queryable observable sequence that is terminated by an exception with the next queryable observable sequence.

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

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function Catch(Of TSource) ( _
    provider As IQbservableProvider, _
    ParamArray sources As IObservable(Of TSource)() _
) As IQbservable(Of TSource)
'Usage
Dim provider As IQbservableProvider
Dim sources As IObservable(Of TSource)()
Dim returnValue As IQbservable(Of TSource)

returnValue = provider.Catch(sources)
public static IQbservable<TSource> Catch<TSource>(
    this IQbservableProvider provider,
    params IObservable<TSource>[] sources
)
[ExtensionAttribute]
public:
generic<typename TSource>
static IQbservable<TSource>^ Catch(
    IQbservableProvider^ provider, 
    ... array<IObservable<TSource>^>^ sources
)
static member Catch : 
        provider:IQbservableProvider * 
        sources:IObservable<'TSource>[] -> IQbservable<'TSource> 
JScript does not support generic types and methods.

Type Parameters

  • TSource
    The type of source.

Parameters

Return Value

Type: System.Reactive.Linq.IQbservable<TSource>
A queryable observable sequence containing elements from consecutive source sequences until a source sequence terminates successfully.

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 .

See Also

Reference

Qbservable Class

Catch Overload

System.Reactive.Linq Namespace