silverlight将字符串转化为控件

  silverlight的System.Windows.Markup命名空间下,提供了XamlReader.Load()方法可以将字符串转换为控件。

代码

   
     

    
      
    
      StringBuilder sbGrid 
    
      =
    
       
    
      new
    
       StringBuilder();
 sbGrid.Append(
    
      "
    
      <Grid Width=\
    
      "
    
      150
    
      \
    
      "
    
       Height=\
    
      "
    
      150
    
      \
    
      "
    
       Background=\
    
      "
    
      Red\
    
      "
    
       
    
      "
    
      );
 sbGrid.Append(
    
      "
    
       xmlns=\
    
      "
    
      http:
    
      //
    
      schemas.microsoft.com/winfx/2006/xaml/presentation\"");
    
      

    
       sbGrid.Append(
    
      "
    
       xmlns:x=\
    
      "
    
      http:
    
      //
    
      schemas.microsoft.com/winfx/2006/xaml\">");
    
      

    
       sbGrid.Append(
    
      "
    
      </Grid>
    
      "
    
      );
 Grid grid 
    
      =
    
       (Grid)XamlReader.Load(sbGrid.ToString());
 LayoutRoot.Children.Add(grid);
   
     

 

效果:

 注意:通过拼接字符串添加silverlight自带的控件时，务必加上

xmlns=http://schemas.microsoft.com/winfx/2006/xaml/presentation

  命名空间字符串,否则会提示无法找到命名空间。如果添加的是第三方的控件，可不用添加上述字符串,但必须加上控件的命名空间。比如:添加一个第三方的按钮

代码

   
     

    
      
    
       StringBuilder sbButton 
    
      =
    
       
    
      new
    
       StringBuilder();
 sbButton.Append(
    
      "
    
       <telerik:RadButton xmlns:telerik=\
    
      "
    
      http:
    
      //
    
      schemas.telerik.com/2008/xaml/presentation\" ");
    
      

    
       sbButton.Append(
    
      "
    
       Width=\
    
      "
    
      150
    
      \
    
      "
    
       Height=\
    
      "
    
      50
    
      \
    
      "
    
       Content=\
    
      "
    
      My Button\
    
      "
    
       />
    
      "
    
      );
 RadButton radButton 
    
      =
    
       (RadButton)XamlReader.Load(sbButton.ToString());
 LayoutRoot.Children.Add(radButton);
   
     

 

效果: