wpf为自定义控件添加属性
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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。