WPF UI开发教程可重复执行按钮
开发项目中有一个需求，当鼠标按住Button时，产生连续触发增加文本框加减数字。不需要每点一次Button加减数字，需要用到RepeatButton按钮，该控件功能是按住Button事件可重复执行的按钮。
该控件中有两个重要属性
Delay:从用户按下鼠标左键到开始重复发送click事件的延迟时间.单位为毫秒 Delay数值必须大于等于0
Interval:当用户按下鼠标左键时,每次发出Click事件的时间间隔.单位为毫秒 Interval数值必须大于等于0
https://www.zhihu.com/video/1405481916824555520
1：RepeatButton按钮样式代码和按钮差不多：
<Style TargetType="{x:Type nb:NbRepeatButton}">
<Setter Property="DisabledCursor" Value="No"/>
<Setter Property="MaskBackground" Value="Transparent"/>
<Setter Property="FocusVisualStyle" Value="{StaticResource FocusVisualStyle}"/>
<Setter Property="Background" Value="{StaticResource Nb.DefaultBtn.Background}" />
<Setter Property="Foreground" Value="{StaticResource Nb.DefaultBtn.Foreground}" />
<Setter Property="MinWidth" Value="50" />
<Setter Property="MinHeight" Value="36" />
<Setter Property="FontSize" Value="{StaticResource Nb.FontSize.28}" />
<Setter Property="Margin" Value="0,0,0,0" />
<Setter Property="CornerRadius" Value="8" />
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Cursor" Value="Hand"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type nb:NbRepeatButton}">
<Border x:Name="border"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Background="{TemplateBinding Background}"
CornerRadius="{TemplateBinding CornerRadius}"
Effect="{TemplateBinding Effect}"
SnapsToDevicePixels="True">
<Border x:Name="innerBorder"
Background="{TemplateBinding MaskBackground}"
CornerRadius="{TemplateBinding CornerRadius}"
SnapsToDevicePixels="True">
<ContentPresenter x:Name="contentPresenter"
ContentTemplate="{TemplateBinding ContentTemplate}"
Content="{TemplateBinding Content}"
ContentStringFormat="{TemplateBinding ContentStringFormat}"
Focusable="False"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"
RecognizesAccessKey="True"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Opacity" Value="0.6"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="MaskBackground" Value="{StaticResource Nb.DefaultBtn.OverBackground}"/>
</Trigger>
<Trigger Property="IsPressed" Value="True">
<Setter Property="MaskBackground" Value="{StaticResource Nb.DefaultBtn.PressedBackground}"/>
</Trigger>
</Style.Triggers>
</Style>2：RepeatButton按钮类依赖属性代码
/// <summary>
/// 按下事件可重复执行的按钮
/// </summary>
public class NbRepeatButton : RepeatButton
#region ctor
static NbRepeatButton()
DefaultStyleKeyProperty.OverrideMetadata(typeof(NbRepeatButton), new FrameworkPropertyMetadata(typeof(NbRepeatButton)));
/// <summary>
/// </summary>
public NbRepeatButton()
IsHitTestVisibleInChrome = true;
#endregion
#region prop
/// <summary>
/// 非客户区鼠标/触摸响应
/// </summary>
public bool IsHitTestVisibleInChrome
get { return WindowChrome.GetIsHitTestVisibleInChrome(this); }
set { WindowChrome.SetIsHitTestVisibleInChrome(this, value); }
#endregion
#region dp prop
/// <summary>
/// 圆角
/// </summary>
public CornerRadius CornerRadius
get { return (CornerRadius)GetValue(CornerRadiusProperty); }
set { SetValue(CornerRadiusProperty, value); }
// Using a DependencyProperty as the backing store for CornerRadius. This enables animation, styling, binding, etc...
public static readonly DependencyProperty CornerRadiusProperty =
DependencyProperty.Register("CornerRadius", typeof(CornerRadius), typeof(NbRepeatButton), new PropertyMetadata(new CornerRadius(0d)));
/// <summary>
/// 遮罩层背景色（用于鼠标移入和点击按钮时背景色变化）
/// </summary>
public Brush MaskBackground
get { return (Brush)GetValue(MaskBackgroundProperty); }
set { SetValue(MaskBackgroundProperty, value); }
// Using a DependencyProperty as the backing store for MaskBackground. This enables animation, styling, binding, etc...
public static readonly DependencyProperty MaskBackgroundProperty =
DependencyProperty.Register("MaskBackground", typeof(Brush), typeof(NbRepeatButton), new PropertyMetadata(Brushes.Transparent));
/// <summary>
/// 禁用时鼠标的样式
/// </summary>
public Cursor DisabledCursor
get { return (Cursor)GetValue(DisabledCursorProperty); }
set { SetValue(DisabledCursorProperty, value); }
// Using a DependencyProperty as the backing store for DisabledCursor. This enables animation, styling, binding, etc...
public static readonly DependencyProperty DisabledCursorProperty =
DependencyProperty.Register("DisabledCursor", typeof(Cursor), typeof(NbRepeatButton), new PropertyMetadata(Cursors.No, (d, e) =>
var ele = (UIElement)d;
ele.AddAdorner(new DisabledAdorner(ele, (Cursor)e.NewValue));
#endregion
#region override
/// <summary>
/// </summary>
public override void OnApplyTemplate()
base.OnApplyTemplate();
this.AddAdorner(new DisabledAdorner(this, DisabledCursor));
/// <summary>
/// </summary>
/// <param name="e"></param>
protected override void OnPropertyChanged(DependencyPropertyChangedEventArgs e)