本文整理汇总了C#中System.Windows.Controls.UserControl类的典型用法代码示例。如果您正苦于以下问题：C# UserControl类的具体用法？C# UserControl怎么用？C# UserControl使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
UserControl类属于System.Windows.Controls命名空间，在下文中一共展示了UserControl类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: NumericUpDown
//引入命名空间
using System;
using System.Windows;
using System.Windows.Controls;
namespace MyUserControl
{
public partial class NumericUpDown : System.Windows.Controls.UserControl
{
/// <summary>
/// Initializes a new instance of the NumericUpDownControl.
/// </summary>
public NumericUpDown()
{
InitializeComponent();
}
/// <summary>
/// Identifies the Value dependency property.
/// </summary>
public static readonly DependencyProperty ValueProperty =
DependencyProperty.Register(
"Value", typeof(decimal), typeof(NumericUpDown),
new FrameworkPropertyMetadata(MinValue, new PropertyChangedCallback(OnValueChanged),
new CoerceValueCallback(CoerceValue)));
/// <summary>
/// Gets or sets the value assigned to the control.
/// </summary>
public decimal Value
{
get { return (decimal)GetValue(ValueProperty); }
set { SetValue(ValueProperty, value); }
}
private static object CoerceValue(DependencyObject element, object value)
{
decimal newValue = (decimal)value;
NumericUpDown control = (NumericUpDown)element;
newValue = Math.Max(MinValue, Math.Min(MaxValue, newValue));
return newValue;
}
private static void OnValueChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
NumericUpDown control = (NumericUpDown)obj;
RoutedPropertyChangedEventArgs<decimal> e = new RoutedPropertyChangedEventArgs<decimal>(
(decimal)args.OldValue, (decimal)args.NewValue, ValueChangedEvent);
control.OnValueChanged(e);
}
/// <summary>
/// Identifies the ValueChanged routed event.
/// </summary>
public static readonly RoutedEvent ValueChangedEvent = EventManager.RegisterRoutedEvent(
"ValueChanged", RoutingStrategy.Bubble,
typeof(RoutedPropertyChangedEventHandler<decimal>), typeof(NumericUpDown));
/// <summary>
/// Occurs when the Value property changes.
/// </summary>
public event RoutedPropertyChangedEventHandler<decimal> ValueChanged
{
add { AddHandler(ValueChangedEvent, value); }
remove { RemoveHandler(ValueChangedEvent, value); }
}
/// <summary>
/// Raises the ValueChanged event.
/// </summary>
/// <param name="args">Arguments associated with the ValueChanged event.</param>
protected virtual void OnValueChanged(RoutedPropertyChangedEventArgs<decimal> args)
{
RaiseEvent(args);
}
private void upButton_Click(object sender, EventArgs e)
{
Value++;
}
private void downButton_Click(object sender, EventArgs e)
{
Value--;
}
private const decimal MinValue = 0, MaxValue = 100;
}
}