Digital Clock : Binding « Windows Presentation Foundation « VB.Net






Digital Clock

Digital Clock
     
<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        xmlns:src="clr-namespace:WpfApplication1.DigitalClock"
        Title="Digital Clock"
        SizeToContent="WidthAndHeight">
    <Window.Resources>
        <src:ClockTicker1 x:Key="clock" />
    </Window.Resources>
    <Window.Content>
        <Binding Source="{StaticResource clock}" Path="DateTime" />
    </Window.Content>
</Window>
//File:Window.xaml.vb
Imports System
Imports System.Windows
Imports System.Windows.Threading

Namespace WpfApplication1.DigitalClock
  Public Class ClockTicker1
    Inherits DependencyObject
    Public Shared DateTimeProperty As DependencyProperty = DependencyProperty.Register("DateTime", GetType(DateTime), GetType(ClockTicker1))

    Public Property DateTime() As DateTime
      Get
        Return CType(GetValue(DateTimeProperty), DateTime)
      End Get
      Set
        SetValue(DateTimeProperty, value)
      End Set
    End Property

    Public Sub New()
      Dim timer As New DispatcherTimer()
      AddHandler timer.Tick, AddressOf TimerOnTick
      timer.Interval = TimeSpan.FromSeconds(1)
      timer.Start()
    End Sub

    Private Sub TimerOnTick(sender As Object, args As EventArgs)
      DateTime = DateTime.Now
    End Sub
  End Class
End Namespace

   
    
    
    
    
  








Related examples in the same category

1.Bind to a Property of a UI ElementBind to a Property of a UI Element
2.Bind a Property of an Element to ItselfBind a Property of an Element to Itself
3.Specify a Default Value for a BindingSpecify a Default Value for a Binding
4.Create a Two-Way BindingCreate a Two-Way Binding
5.Debug Bindings Using Attached PropertiesDebug Bindings Using Attached Properties
6.String Array ResourceString Array Resource
7.Bind animate target value to Canvas(Window) widthBind animate target value to Canvas(Window) width
8.Display Current Date and Time: binding the DateTime.Now to LabelDisplay Current Date and Time: binding the DateTime.Now to Label
9.One way and two way bindingOne way and two way binding
10.Custom Element Binding WindowCustom Element Binding Window
11.Get XmlElement from Bounded viewGet XmlElement from Bounded view
12.Customize UpdateSourceExceptionFilterCustomize UpdateSourceExceptionFilter
13.Assign your own class to DataContent and bind to TextBoxAssign your own class to DataContent and bind to TextBox
14.Async bindingAsync binding
15.Null property bindingNull property binding
16.Binding Property with ExceptionBinding Property with Exception
17.Hierarchical Binding for three level nested objectsHierarchical Binding for three level nested objects
18.BindingOperations.GetBindingExpressionBindingOperations.GetBindingExpression
19.Bind to enum typesBind to enum types
20.Bind to a MethodBind to a Method
21.Manual Update TargetManual Update Target
22.Bind to the Values of an EnumerationBind to the Values of an Enumeration
23.Master Detail BindingMaster Detail Binding
24.Data binding using collections composed of mixed types of data.Data binding using collections composed of mixed types of data.
25.Binding Environment InfoBinding Environment Info
26.Bind to an ADO.NETDataSetBind to an ADO.NETDataSet
27.Text Data BindingText Data Binding
28.Bind to an Existing Object InstanceBind to an Existing Object Instance
29.Use Data Triggers to Change the Appearance of Bound DataUse Data Triggers to Change the Appearance of Bound Data