Custom Control 又名 Templated Control 模板控件
开发
分为两个文件
一个资源文件 Themes/Generic.xaml 里面，主要放默认的模板及初始化属性
一个cs 文件 控件名.cs，主要放 声明属性及事件
一个简单的控件，由一个图标和文字组成的控件
public sealed class IconTag : Control
{
public IconTag()
{
this.DefaultStyleKey = typeof(IconTag);
}
/// <summary>
/// 内容
/// </summary>
public string Label
{
get { return (string)GetValue(LabelProperty); }
set { SetValue(LabelProperty, value); }
}
// Using a DependencyProperty as the backing store for Label. This enables animation, styling, binding, etc...
public static readonly DependencyProperty LabelProperty =
DependencyProperty.Register("Label", typeof(string), typeof(IconTag), new PropertyMetadata(null));
/// <summary>
/// 内容字体图标
/// </summary>
public string Icon
{
get { return (string)GetValue(IconProperty); }
set { SetValue(IconProperty, value); }
}
// Using a DependencyProperty as the backing store for Icon. This enables animation, styling, binding, etc...
public static readonly DependencyProperty IconProperty =
DependencyProperty.Register("Icon", typeof(string), typeof(IconTag), new PropertyMetadata(null));
} <Style TargetType="local2:IconTag">
<Setter Property="FontFamily" Value="Microsoft YaHei"/>
<Setter Property="Margin" Value="0,0,10,0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="local2:IconTag">
<Grid Margin="{TemplateBinding Margin}" Padding="{TemplateBinding Padding}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<FontIcon Glyph="{TemplateBinding Icon}" FontSize="{TemplateBinding FontSize}" VerticalAlignment="Center"/>
<TextBlock Text="{TemplateBinding Label}"
FontFamily="{TemplateBinding FontFamily}"
VerticalAlignment="Center" Grid.Column="1" FontSize="{TemplateBinding FontSize}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>ControlTemplate就是放默认模板，
Setter Property= 就是声明一些初始化的属性
代码获取控件模板中的控件
必须先使用 x:Name 声明名称
<Style TargetType="local2:IconTag">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="local2:IconTag">
<Grid Margin="{TemplateBinding Margin}" Padding="{TemplateBinding Padding}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<FontIcon Glyph="{TemplateBinding Icon}" FontSize="{TemplateBinding FontSize}" VerticalAlignment="Center"/>
<TextBlock x:Name="Content" Text="{TemplateBinding Label}"
FontFamily="{TemplateBinding FontFamily}"
VerticalAlignment="Center" Grid.Column="1" FontSize="{TemplateBinding FontSize}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>必须声明模板必须包含 x:Name="Content" 且 类型为 TextBlock
[TemplatePart(Name = "Content", Type = typeof(TextBlock))]
public sealed class IconTag : Control {
public IconTag()
{
DefaultStyleKey = typeof(IconTag);
Loaded += IconTag_Loaded;
}
private void IconTag_Loaded(object sender, RoutedEventArgs e)
{
var tb = GetTemplateChild("Content") as TextBlock;
}
}通过 GetTemplateChild 获取控件，而且必须等控件加载完了才能获取到。
转载请保留原文链接： https://zodream.cn/blog/id/206.html