BaseButton.BindCommand<T>(Expression<Action<T>>, Object, Action<BaseButton, Func<Boolean>>, Func<T>) Method

Uses the command selector to find an appropriate parameterized command of the target type in the source and bind it to this BaseButton.

Namespace: DevExpress.XtraEditors

Assembly: DevExpress.XtraEditors.v22.1.dll

NuGet Package: DevExpress.Win.Navigation

Declaration

C#

public virtual IDisposable BindCommand<T>(
    Expression<Action<T>> commandSelector,
    object source,
    Action<BaseButton, Func<bool>> updateState,
    Func<T> queryCommandParameter = null
)

VB.NET

Public Overridable Function BindCommand(Of T)(
    commandSelector As Expression(Of Action(Of T)),
    source As Object,
    updateState As Action(Of BaseButton, Func(Of Boolean)),
    queryCommandParameter As Func(Of T) = Nothing
) As IDisposable

Parameters

Name	Type	Description
commandSelector	Expression<Action<T>>	An Expression that selects the appropriate command from the source object.
source	Object	An Object (typically, a ViewModel) where the commandSelector looks for the required command.
updateState	Action<BaseButton, Func<Boolean>>	An Action that specifies whether this BaseButton is currently enabled.

Optional Parameters

Name	Type	Default	Description
queryCommandParameter	Func<T>	null	A Func delegate that passes the specific Object to the command as a parameter.

Type Parameters

Name	Description
T	The type of a ViewModel that stores a bindable command.

Returns

Type	Description
IDisposable	An IDisposable object. Disposing of this object unbinds the command from this BaseButton.

Remarks

The BindCommand<T> method supports the WinForms MVVM pattern. See the Commands topic to learn more.