IValueCommand<T>

References
public interface IValueCommand<T> : ICommand
Interface for a command that can provide a value
Remarks: Some controls can provide a value, which can be difficult to get via the command when the value changes. This inteface allows you to extend your command to allow getting and setting a value of any type and have an event when the value changes programatically.
Type parameters:
T
See Also: ValueCommand<T>

Methods

GetValue

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T GetValue(object parameter)
Gets the current value in the command.
Remarks: This is typically called by the control when the ValueChanged event is raised.
Parameters:
parameter (object)CommandParameter from the control/widget.
Returns: The value.
https://github.com/picoe/Eto/blob/fc8395dc3630c1ea5e1b1e8cb900e9cfb80c800e/src/Eto/Forms/ValueCommand.cs:23

SetValue

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void SetValue(object parameter, T value)
Sets the value in the command from the control.
Remarks: This is typically invoked when the control has updated its value.
Parameters:
parameter (object)CommandParameter from the control/widget.
value (T)Value to set to.
https://github.com/picoe/Eto/blob/fc8395dc3630c1ea5e1b1e8cb900e9cfb80c800e/src/Eto/Forms/ValueCommand.cs:33

Events

ValueChanged

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event EventHandler<EventArgs> ValueChanged
Event to signal to the control/widget that the value has been changed.
Remarks: Controls should call GetValue(object) when this is raised so that they can set the state of the control to match the value provided.
https://github.com/picoe/Eto/blob/fc8395dc3630c1ea5e1b1e8cb900e9cfb80c800e/src/Eto/Forms/ValueCommand.cs:42