HubConnection.On Method  
Definition
Important
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Overloads
| On(String, Type[], Func<Object[],Object,Task>, Object) | 
						 Registers a handler that will be invoked when the hub method with the specified method name is invoked.  | 
        	
| On(String, Type[], Func<Object[],Object,Task<Object>>, Object) | 
						 Registers a handler that will be invoked when the hub method with the specified method name is invoked. Returns value returned by handler to server if the server requests a result.  | 
        	
On(String, Type[], Func<Object[],Object,Task>, Object)
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
Registers a handler that will be invoked when the hub method with the specified method name is invoked.
public:
 IDisposable ^ On(System::String ^ methodName, cli::array <Type ^> ^ parameterTypes, Func<cli::array <System::Object ^> ^, System::Object ^, System::Threading::Tasks::Task ^> ^ handler, System::Object ^ state);
	public virtual IDisposable On(string methodName, Type[] parameterTypes, Func<object?[],object,System.Threading.Tasks.Task> handler, object state);
	public IDisposable On(string methodName, Type[] parameterTypes, Func<object[],object,System.Threading.Tasks.Task> handler, object state);
	abstract member On : string * Type[] * Func<obj[], obj, System.Threading.Tasks.Task> * obj -> IDisposable
override this.On : string * Type[] * Func<obj[], obj, System.Threading.Tasks.Task> * obj -> IDisposable
	member this.On : string * Type[] * Func<obj[], obj, System.Threading.Tasks.Task> * obj -> IDisposable
	Public Overridable Function On (methodName As String, parameterTypes As Type(), handler As Func(Of Object(), Object, Task), state As Object) As IDisposable
	Public Function On (methodName As String, parameterTypes As Type(), handler As Func(Of Object(), Object, Task), state As Object) As IDisposable
	Parameters
- methodName
 - String
 
The name of the hub method to define.
- parameterTypes
 - Type[]
 
The parameters types expected by the hub method.
- state
 - Object
 
A state object that will be passed to the handler.
Returns
A subscription that can be disposed to unsubscribe from the hub method.
Remarks
This is a low level method for registering a handler. Using an HubConnectionExtensionsOn extension method is recommended.
Applies to
On(String, Type[], Func<Object[],Object,Task<Object>>, Object)
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
- Source:
 - HubConnection.cs
 
Registers a handler that will be invoked when the hub method with the specified method name is invoked. Returns value returned by handler to server if the server requests a result.
public virtual IDisposable On(string methodName, Type[] parameterTypes, Func<object?[],object,System.Threading.Tasks.Task<object?>> handler, object state);
	abstract member On : string * Type[] * Func<obj[], obj, System.Threading.Tasks.Task<obj>> * obj -> IDisposable
override this.On : string * Type[] * Func<obj[], obj, System.Threading.Tasks.Task<obj>> * obj -> IDisposable
	Public Overridable Function On (methodName As String, parameterTypes As Type(), handler As Func(Of Object(), Object, Task(Of Object)), state As Object) As IDisposable
	Parameters
- methodName
 - String
 
The name of the hub method to define.
- parameterTypes
 - Type[]
 
The parameters types expected by the hub method.
The handler that will be raised when the hub method is invoked.
- state
 - Object
 
A state object that will be passed to the handler.
Returns
A subscription that can be disposed to unsubscribe from the hub method.
Remarks
This is a low level method for registering a handler. Using an HubConnectionExtensionsOn extension method is recommended.