WPF开发微信三、高仿微信对话框

1、效果图

 2、示例目标

根据选择的对话，创建Frame Page页面，如果已经存在则之间显示；

 

3、C# 代码

Dictionary<String, Frame> dic = new Dictionary<string, Frame>();
private void ListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    if (listBox.SelectedItem != null)
    {
        ListBoxItem item = (ListBoxItem)listBox.SelectedItem;
        String Key = item.Name;
        if (!dic.ContainsKey(Key))
        {
            Frame frame = new Frame();
            frame.Visibility = Visibility.Collapsed;
            int tag = Convert.ToInt32(item.Tag);
            if (tag == 1)
            {
                PageFriendTalk pageA = new PageFriendTalk(new PageData() { key = Key });
                frame.Navigate(pageA, new object() { });
            }
            if(tag == 2)
            {
                PageGroupTalk pageA = new PageGroupTalk(new PageData() { key = Key });
                frame.Navigate(pageA, new object() { });
            }
            gridTalk.Children.Add(frame);
            dic.Add(Key, frame);
        }
        foreach (KeyValuePair<string, Frame> kvp in dic)
        {
            if(kvp.Key.Equals(Key))
                kvp.Value.Visibility = Visibility.Visible;
            else
                kvp.Value.Visibility = Visibility.Collapsed;
        }
    }
}

4、示例下载：WpfImTalk1.0.zip

 

QAF

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