Silverlight学习笔记十二动态加载图片和显示提示(ToolTip)

这一节是如何动态加载图片和显示提示(ToolTip)

下面是效果

1.LayoutControlDemo.xaml

</StackPanel>
</Grid>

</UserControl>

2.LayoutControlDemo.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Silverlight.Common.Core;
using System.Windows.Media.Imaging;
using System.Collections.ObjectModel;
using System.Windows.Controls.Primitives;
using DevExpress.Xpf.Core;

namespace Silverlight.Common.View
{
    public partial class LayoutControlDemo : UserControl
    {
        Star star = new Star();
        public LayoutControlDemo()
        {
            InitializeComponent();
            InitPanel();
        }

        /// <summary>
        /// 初始化界面
        /// </summary>
        void InitPanel()
        {
            ObservableCollection<Star> list = null;

list = star.DataSource();

            if (list != null)
            {
                foreach (var item in list)
                {
                    Image image = new Image();
                    image.Width = (double)100;
                    image.Height = (double)100;

                    //图片地址
                    image.Source = item.Image;

//图片标识
image.Tag = item.Tag;

//将此控件添加到布局控件上
panel.Children.Add(image);

                    //ToopTip对象
                    ToolTip tt = new ToolTip();
                    Info info=new Info();

//给ToolTip的Content赋值
tt.Content = info;

//设置image的ToolTip
image.SetToolTip(tt);

                    tt.DataContext = star.Get(image.Tag.ToString());
                }
            }
        }
    }
}

3.Info.xaml

4.Star.cs

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Media.Imaging;
using System.Collections.ObjectModel;

using System.Linq;

namespace Silverlight.Common.Core
{
    public class Star
    {
        /// <summary>
        /// 标识
        /// </summary>
        public string Tag { get; set; }

        /// <summary>
        /// 主演
        /// </summary>
        public string Starring { get; set; }

        /// <summary>
        /// 电影名
        /// </summary>
        public string MovieName { get; set; }

        /// <summary>
        /// 所属地区
        /// </summary>
        public string Area { get; set; }

        /// <summary>
        /// 图片名字
        /// </summary>
        public string ImageName { get; set; }

        /// <summary>
        /// 图片
        /// </summary>
        public BitmapImage Image { get { return new BitmapImage(ImageFullName); } }

        /// <summary>
        /// 图片路径
        /// </summary>
        public string ImagesPath { get; set; }

        /// <summary>
        /// 图片全名
        /// </summary>
        public Uri ImageFullName {
            get { return new Uri(ImagesPath + ImageName, UriKind.Relative); }}

        /// <summary>
        /// 电影类型
        /// </summary>
        public string MovieType { get; set; }

        /// <summary>
        /// 剧情
        /// </summary>
        public string Plot { get; set; }

// public ObservableCollection<BitmapImage> images { get { return m_images; } }

        public ObservableCollection<Star> DataSource()
        {
            ObservableCollection<Star> list = new ObservableCollection<Star>();
            list.Add(new Star()
            {
                Tag="SadStory",
                Starring = "权相宇,金喜善",
                Area="韩国",
                MovieName = "悲伤恋歌",
                MovieType = "爱情/悲剧",
                Plot = "三个人的爱情，三个人的悲剧",
                ImageName="ba.jpg",
                ImagesPath = "../Images/",
            });

            list.Add(new Star()
            {
                Tag = "da",
                Starring = "权相宇,李瑶媛",
                Area = "韩国",
                MovieName = "毒爱",
                MovieType = "爱情/悲剧",
                Plot = "这部电影是权相宇结婚后的首部悲剧电视剧，讲述了俩个都被爱所伤害的人，相遇后的故事！",
                ImageName = "da.jpg",
                ImagesPath = "../Images/",
            });

            list.Add(new Star()
            {
                Tag = "sm",
                Starring = "权相宇,宋承宪",
                Area = "韩国",
                MovieName = "宿命",
                MovieType = "爱情/悲剧",
                Plot = "讲述了三个挚友为了钱而互相残杀的故事！",
                ImageName = "sm.jpg",
                ImagesPath = "../Images/",
            });

            list.Add(new Star()
            {
                Tag = "jt",
                Starring = "权相宇,崔智友",
                Area = "韩国",
                MovieName = "天堂的阶梯",
                MovieType = "爱情/悲剧",
                Plot = "诚俊和静书是青梅竹马的玩伴，从小如同亲兄妹般渡过孩童时期。每当静书伤心难过时，诚俊总会守在她身边付出关心，而静书同样依赖诚俊，使两人对彼此逐渐培养出男女之情。天国的阶梯某一天诚俊之父车祸身亡，不久之后静书之母也因病过世。",
                ImageName = "jt.jpg",
                ImagesPath = "../Images/",
            });

            list.Add(new Star()
            {
                Tag = "wz",
                Starring = "权相宇,允儿",
                Area = "韩国",
                MovieName = "乞丐变王子",
                MovieType = "爱情",
                Plot = "　这次公开的剧照描绘了背着大包在东大门市场工作的吴大山（权相宇饰）和父亲去世后坐在父亲的店里看着家人照片的徐柳真（允儿饰）的样子。剧中柳真在父亲的葬礼上跟大山擦肩而过，而两人在柳真父亲的店里又再次相遇。大山帮助陷入困境的柳真，两人的因缘由此展开。",
                ImageName = "wz.jpg",
                ImagesPath = "../Images/",
            });

            return list;
        }

        public Star Get(string Tag)
        {
            Star obj = null;
            if (this.DataSource().Where(w => w.Tag == Tag) != null)
            {
                obj = this.DataSource().Where(w => w.Tag == Tag).First();
            }

            return obj;
        }
    }
}

注：TextBox的多行属性TextWrapping="Wrap"很重要啊。

界面做的很不好看，请大家谅解啊

源代码下载：https://files.cnblogs.com/salam/Silverlight.Common.rar

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原文地址：https://www.cnblogs.com/salam/p/1779648.html