ASP.Net TextBox里面实现回车触发按钮事件

      最近在完成一个项目时,需要完成一个搜索功能。功能很好做,但是遇见一个问题就是像百度首页一样，当你在textBox里输入值后，一按回车后面的按钮事件就自动执行。研究了很久,也在网上看了很多。最后发现了一个很简单使用的方法。贴一下~

代码

   
     

    
      
    
      1 
    
      <
    
      asp:Panel ID
    
      =
    
      "
    
      panSearch
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
       DefaultButton
    
      =
    
      "
    
      Button1
    
      "
    
      >
    
       

    
      2 
    
       
    
      <
    
      asp:TextBox runat
    
      =
    
      "
    
      server
    
      "
    
       id
    
      =
    
      "
    
      key_word
    
      "
    
       type
    
      =
    
      "
    
      text
    
      "
    
       size
    
      =
    
      "
    
      64
    
      "
    
       
    
      >
    
      

    
      3 
    
       
    
      </
    
      asp:TextBox
    
      >
    
      

    
      4 
    
       
    
      <
    
      asp:Button ID
    
      =
    
      "
    
      Button1
    
      "
    
       type
    
      =
    
      "
    
      submit
    
      "
    
       Text
    
      =
    
      ""
    
       name
    
      =
    
      "
    
      Button1
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
       onclick
    
      =
    
      "
    
      Button1_Click
    
      "
    
      />
    
      

    
      5 
    
       
    
      </
    
      asp:Panel
    
      >
    
       
   
     

把两控件放在同一个panel后  最重要是声明panel DefaultButton="按钮"。

ok了。

还有两段代码，但是要报错正在研究。可以看看。

  
    

   
     
   
     1 
   
     <
   
     asp:textbox id
   
     =
   
     "
   
     t
   
     "
   
      runat
   
     =
   
     "
   
     server
   
     "
   
      onkeydown
   
     =
   
     "
   
     if(event.keyCode==13) btn1.click();FormName.Submit();
   
     "
   
     >
   
      

   
     2 
   
     

   
     3 
   
     

   
     4 
   
      
   
     //
   
     page_load
   
     

   
     5 
   
      
   
     t.Attributes.Add(
   
     "
   
     onkeydown
   
     "
   
     ,
   
     "
   
     要激发的函数
   
     "
   
     ); 
  
    

代码

   
     

    
      
    
       1 
    
      <
    
      script type
    
      =
    
      "
    
      text/javascript
    
      "
    
      >
    
       

    
       2 
    
       function keyDown() 

    
       3 
    
       { 

    
       4 
    
       var e
    
      =
    
      event
    
      .srcElement; 

    
       5 
    
       
    
      if
    
      (
    
      event
    
      .keyCode
    
      ==
    
      13
    
      ) 

    
       6 
    
       { 

    
       7 
    
       document.getElementById(
    
      "
    
      Button1
    
      "
    
      ).click(); 

    
       8 
    
       } 

    
       9 
    
       } 

    
      10 
    
       
    
      </
    
      script
    
      >
    
       

    
      11 
    
       

    
      12 
    
       
    
      </
    
      head
    
      >
    
       

    
      13 
    
      
    
      <
    
      body
    
      >
    
       

    
      14 
    
       
    
      <
    
      form id
    
      =
    
      "
    
      form1
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
      >
    
       

    
      15 
    
       
    
      <
    
      asp:TextBox ID
    
      =
    
      "
    
      TextBox1
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
       onkeydown
    
      =
    
      "
    
      keyDown
    
      "
    
      ></
    
      asp:TextBox
    
      >
    
       

    
      16 
    
       
    
      <
    
      asp:Button ID
    
      =
    
      "
    
      Button1
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
       OnClick
    
      =
    
      "
    
      Button1_Click
    
      "
    
       Text
    
      =
    
      "
    
      Button
    
      "
    
       
    
      />