ICommandHandler Interface

Definition

Namespace:

Microsoft.VisualStudio.Commanding

Assembly:

Microsoft.VisualStudio.Text.UI.dll

Package:

Microsoft.VisualStudio.Text.UI v17.12.215

This interface marks a class that implements at least one strongly-typed ICommandHandler<T> or IChainedCommandHandler<T>.

public interface class ICommandHandler

public interface ICommandHandler

type ICommandHandler = interface

Public Interface ICommandHandler

Derived

Microsoft.VisualStudio.Commanding.IChainedCommandHandler<T>

Microsoft.VisualStudio.Commanding.ICommandHandler<T>

Examples

[Export(typeof(ICommandHandler))]
[Name(nameof(MyCommandHandler))]
[ContentType("text")]
[Order(Before ="OtherCommandHandler")]   
[TextViewRole(PredefinedTextViewRoles.Editable)]
internal class MyCommandHandler : ICommandHandler<MyCommandArgs>

Remarks

This is a MEF component part and should be exported as the non-generic ICommandHandler with required [Name], [ContentType] attributes and optional [Order] and [TextViewRole] attributes.

Extension Methods

ExecuteCommand<T>(ICommandHandler, T, Action, CommandExecutionContext)	Called to execute the command.
GetCommandState<T>(ICommandHandler, T, Func<CommandState>)	Called to determine the state of the command.