Create using for own helper? like Html.BeginForm

Question

I was wondering, is it possible to create your own helper definition, with a using? such as the following which creates a form:

using (Html.BeginForm(params)         


        

Answer 1

Sure, it's possible:

public static class HtmlExtensions
{
    private class Table : IDisposable
    {
        private readonly TextWriter _writer;
        public Table(TextWriter writer)
        {
            _writer = writer;
        }

        public void Dispose()
        {
            _writer.Write("");
        }
    }

    public static IDisposable BeginTable(this HtmlHelper html, string id)
    {
        var writer = html.ViewContext.Writer;
        writer.Write(string.Format("", id));
        return new Table(writer);
    }
}
and then:
@using(Html.BeginTable("abc"))
{
    @:




content etc

}


will yield:


    
content etc




I'd also recommend you reading about Templated Razor Delegates.
    

             

                                                        
            
            

              
                
                0
              
                   
                
               讨论(0)
              
                                                  
              
              

                          
             
       
          
              
                                       

     查看其它2个回答


            
                         

                    



               
            

    发布评论:
    

         
                        
    
    
提交评论 
  
  

                    
                    

                    

                        

                        
                         加载中...
                        
                    
                
          
                              			
        
        
        

          

            
            

              
              

            
    


                                 
              
            
                          
    

        
         

                验证码
                

                  
                
                

                   看不清?
                
              
                                  

                    
   
                 
             
              
提交回复
            
          
        
      
       
      
    
    

          
 
     
 

        
热议问题