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  • WPF 附加属性的使用

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows;


    namespace Wpf180706
    {
        public class School:DependencyObject
        {
            public static int GetGrade(DependencyObject obj)
            {
                return (int)obj.GetValue(GradeProperty);
            }

            public static void SetGrade(DependencyObject obj, int value)
            {
                obj.SetValue(GradeProperty, value);
            }

            // Using a DependencyProperty as the backing store for Grade.  This enables animation, styling, binding, etc...
            public static readonly DependencyProperty GradeProperty =
                DependencyProperty.RegisterAttached("Grade", typeof(int), typeof(School), new PropertyMetadata(0)); 
            
        }

    }


    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows;


    namespace Wpf180706
    {
        public class Student:DependencyObject
        {
    public static readonly DependencyProperty NameProperty = DependencyProperty.Register("Name",typeof(string),typeof(Student));


        }

    }


    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Data;
    using System.Windows.Documents;
    using System.Windows.Input;
    using System.Windows.Media;
    using System.Windows.Media.Imaging;
    using System.Windows.Shapes;


    namespace Wpf180706
    {
        /// <summary>
        /// Interaction logic for Window1.xaml
        /// </summary>
        public partial class Window1 : Window
        {
            public Window1()
            {
                InitializeComponent();
            }


            private void btn_Click(object sender, RoutedEventArgs e)
            {
                Student s = new Student();
                School.SetGrade(s, 5); //设置附加属性
                int grade = School.GetGrade(s);//读取附加属性
                MessageBox.Show(grade.ToString());
            }
        }
    }



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  • 原文地址:https://www.cnblogs.com/dxmfans/p/9434610.html
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