wpf为自定义控件添加属性

wpf为自定义控件添加属性

首先，创建

UserControl.xaml

文件，命名为

MyUserButton

，之后改成这种样式

<Button x:Class="UserButtonTest.MyUserButton"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:UserButtonTest"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300"
Background="Transparent" BorderThickness="0">

<Grid>
<Border Height="50" BorderThickness="3" CornerRadius ="5" Background="#FFFFCC" BorderBrush="#FF6633">
<Border BorderThickness="0">
<Viewbox VerticalAlignment="Center" HorizontalAlignment="Center">
<TextBlock Name="tb" Text="Default Text"></TextBlock>
</Viewbox>
</Border>
</Border>
</Grid>
</Button>

打开对应的

.cs

文件，做如下修改

public static readonly DependencyProperty TextProperty =
DependencyProperty.Register("Text", typeof(string), typeof(MyUserButton), new           PropertyMetadata("TextBox", new PropertyChangedCallback(OnTextChanged)));

public string Text
{
get { return (string)GetValue(TextProperty); }
set { SetValue(TextProperty, value); }
}

static void OnTextChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
((MyUserButton)sender).OnValueChanged(args);
}
protected void OnValueChanged(DependencyPropertyChangedEventArgs e)
{
this.tb.Text = e.NewValue.ToString();
}

然后在

MainWindow.xaml

中引用这个控件

<local:MyUserButton Text="ddd" Width="200" Height="100" ClickF="MyUserButton_ClickF"></local:MyUserButton>

运行，效果如下



但是这样做有问题：Button周围有一大片作用区域，是模板定义得有问题，但如果不这样做的话，

MyUserButton.cs

中无法找到对应的

tb

控件。试了好久也不得法。如果你把问题解决了，Please @me。