WPF 依赖属性

时间:2021-02-20 23:31:27

依赖属性,简单的说,在WPF控件应用过程中,界面上直接可以引用的属性

如:<Button Content="aaa"></Button>

Content称为Button的依赖属性

当我们自定义控件时,如何添加依赖属性呢

1、添加属性

        /// <summary>
/// get or set the items
/// </summary>
public List<TitleListItemModel> TitleListItems
{
get
{
return (List<TitleListItemModel>) GetValue(TitleListItemsProperty)
}
set{SetValue(TitleListItemsProperty,value);};
}

2、注册属性

        public static readonly DependencyProperty TitleListItemsProperty = DependencyProperty.Register("TitleListItems", typeof(List<TitleListItemModel>),
typeof(TitleListControl),new PropertyMetadata(new List<TitleListItemModel>()));

然后在应用自定义控件时,就能直接设置属性了,例如:

TitleListItems属性可以直接在界面上添加
        <wpfApplication6:TitleListControl VerticalAlignment="Center">
<wpfApplication6:TitleListControl.TitleListItems>
<wpfApplication6:TitleListItemModel Name="AAA" Text="aa"></wpfApplication6:TitleListItemModel>
<wpfApplication6:TitleListItemModel Name="bb" Text="BB"></wpfApplication6:TitleListItemModel>
<wpfApplication6:TitleListItemModel Name="ccc" Text="CC"></wpfApplication6:TitleListItemModel>
</wpfApplication6:TitleListControl.TitleListItems>
</wpfApplication6:TitleListControl>