IDialogViewModel Interface

The DataContext and binding source for the dialog Window. Implement this interface or the derived abstract DialogViewModel to transport data from the view to the view model via binding. The IDialogViewModel will be the content of the dialog window. This means the corresponding DataTemplate can define e.g. an input form that can bind to the IDialogViewModel. Register a callback with the ResponseCallbackAsync property to process the DialogResult and the data of the IDialogViewModel.

Namespace: BionicCode.Utilities.Net.Framework.Wpf.Dialog
Assembly: BionicCode.Utilities.Net.Framework.Wpf (in BionicCode.Utilities.Net.Framework.Wpf.dll) Version: 1.0.3.0 (1.0.0.0)

Syntax

public interface IDialogViewModel : IViewModel, 
	INotifyPropertyChanged, INotifyDataErrorInfo

Public Interface IDialogViewModel
	Inherits IViewModel, INotifyPropertyChanged, INotifyDataErrorInfo

Dim instance As IDialogViewModel

public interface class IDialogViewModel : IViewModel, 
	INotifyPropertyChanged, INotifyDataErrorInfo

type IDialogViewModel =  
    interface
        interface IViewModel
        interface INotifyPropertyChanged
        interface INotifyDataErrorInfo
    end

public interface IDialogViewModel extends IViewModel, 
	INotifyPropertyChanged, INotifyDataErrorInfo

public interface IDialogViewModel extends IViewModel, INotifyPropertyChanged, INotifyDataErrorInfo

BionicCode.Utilities.Net.Framework.Wpf.Dialog.IDialogViewModel = function();
BionicCode.Utilities.Net.Framework.Wpf.Dialog.IDialogViewModel.createInterface('BionicCode.Utilities.Net.Framework.Wpf.Dialog.IDialogViewModel');

 INTERFACE IDialogViewModel IMPLEMENTS IViewModel, 
	INotifyPropertyChanged, INotifyDataErrorInfo

The IDialogViewModel type exposes the following members.

Properties

	Name	Description
	DialogResult	The DialogResult of the user interaction.
	HasErrors	Gets a value that indicates whether the entity has validation errors. (Inherited from INotifyDataErrorInfo.)
	Message	The message for the dialog to show to the user.
	ResponseCallbackAsync	The asynchronous callback that is invoked during the dialog interaction. Use this callback as continuation of the interrupted flow, after the required data was collected by the dialog.
	SendResponseAsyncCommand	ICommand that can be bound to the buttons of the dialog. The command parameter is a DialogResult.
	Title	The title of the dialog Window
	TitleBarIcon	The icon to display in the title bar of the Window

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Methods

	Name	Description
	GetErrors	Gets the validation errors for a specified property or for the entire entity. (Inherited from INotifyDataErrorInfo.)
	GetPropertyErrors	Gets all error messages of the specified property. If the propertyName is null all error messages will be returned. (Inherited from IViewModel.)
	PropertyHasError	Checks whether the specified property has errors or is valid. (Inherited from IViewModel.)

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Events

	Name	Description
	ErrorsChanged	Occurs when the validation errors have changed for a property or for the entire entity. (Inherited from INotifyDataErrorInfo.)
	InteractionCompleted	Event to signal that the interaction with the dialog is completed.
	PropertyChanged	Occurs when a property value changes. (Inherited from INotifyPropertyChanged.)
	PropertyValueChanged	PropertyChanged implementation that sends old value and new value of the change and raises the INotifyPropertyChanged event. (Inherited from IViewModel.)

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Remarks

It is recommended to extend the abstract class DialogViewModel instead as this class already implemented the dialog data handling logic. Also use the Dialog attached behavior as it handles the view logic. Just bind DialogDataContextProperty to an instance of DialogViewModel (or IDialogViewModel) and define a DataTemplate for each implementation of DialogViewModel.

Reference

BionicCode.Utilities.Net.Framework.Wpf.Dialog Namespace

Other Resources

See advanced example