WPF 常用技巧代码

1.

.cs

namespace TestApp

{

class TestSource

{

publicstring Test1{ get; set; }

public string Test2{ get; set; }

}

}

public int StringWidth { get; set; }

private void Window_Loaded(object sender, RoutedEventArgs e)
{
this.Width = 840*1.5;
this.Height = 610*1.5;
//GridNormal.Margin = new Thickness(204, 52, 0, 0);
// this.Width =
TextBlock1.DataContext = this;
this.StringWidth = 5;

}

< Windowxmlns:local="using:TestApp" />

<Window.Resources>
<local:TestSource x:Key="TSource" Test1="Test1" Test2="Test2" />
</Window.Resources>

   <TextBlock Text="{Binding StringWidth}"></TextBlock>

   <TextBlock Text="{Binding Source={StaticResource TSource},Path=Test1}" ></TextBlock>

async与await

传统function 加上async 表示一个异步方法，

async void TestFunction()

{

      HttpClient client = new HttpClient();
      Task<string> getStringTask = client.GetStringAsync("http://msdn.microsoft.com");
      string urlContents = await getStringTask;

int i = 0;

}
只有方法标记为async才能使用await ,当遇到await 立即退出当前TestFunction .await 结束后才会从await 处继续执行 TestFunction