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@Florida

是吗？我试试

binghongcha76(一只大猫)
(#2753494@0)
Last Updated: 2006-1-30
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Replies, comments and Discussions:

  • 工作学习 / 专业技术讨论 / 想依据SELECT的不同选项，决定是否显示接下来的TEXT INPUT对象，哪位大侠知道如何做？ -walacato(ERIC); 2006-1-30 (#2753038@0)
    • use JavaScript -xanada(㊣流水); 2006-1-30 (#2753048@0)
      • Thanks, but I want to known "how to" code it using Javascript -walacato(ERIC); 2006-1-30 (#2753175@0)
    • sample code inside -exception(违例); 2006-1-30 {267} (#2753354@0)
      <form name="myform">
      <SELECT NAME="myselect">
      <OPTION VALUE="valueA" selected>ABCD
      <OPTION VALUE="valueB">EFGH
      </SELECT>
      </form>


      inside javascript function:

      var value = document.myform.myselect.value;
      if(value == "valueA"){...}
      else {...}
    • hehe, so simple a question, this is the real sample, u have to use style.visibility to hide or show the TextBox -binghongcha76(一只大猫); 2006-1-30 {717} (#2753371@0)
      <html>

      <script type="text/javascript">
      function change()
      {
      x=document.all.DropDownList1.value;
      if(x=="x4")
      eval("document.all.Text1.style.visibility='hidden';");
      else
      eval("document.all.Text1.style.visibility='visible';");
      }
      </script>

      <body>
      <form name="form1" method="post" id="form1">
      <select name="DropDownList1" id="DropDownList1" onchange="change()">
      <option value="x1">x1</option>
      <option value="x2">x2</option>
      <option value="x3">x3</option>
      <option value="x4">x4</option>
      </select>

      <input id="Text1" type="text" value="cctv"/>
      </form1>
      </body>
      </html>
      • Copy the all codes to a HTML file, use IE to run it, if u select "X4" , TextBox will be hidden, otherwise TextBox will be showen, good luck -binghongcha76(一只大猫); 2006-1-30 (#2753383@0)
        • Just a little tip, this forum supports html code :) -taop(Bard-Tamer); 2006-1-30 {625} (#2753411@0)
          • oh well, maybe not for the JS codes. sry :p -taop(Bard-Tamer); 2006-1-30 (#2753413@0)
          • 是吗？我试试 -binghongcha76(一只大猫); 2006-1-30 {625} (#2753494@0)
        • 一个问题，这个SAMPLE可以隐藏INPUT，但是如何隐藏INPUT前面的文本提示呢？ -walacato(ERIC); 2006-1-31 (#2754538@0)
    • 多谢上面两位大虾，It works. binghongcha76的SAMPLE可直接使用。 -walacato(ERIC); 2006-1-31 {408} (#2754456@0)
      <html>
      <body>
      <form name="myform">
      <SELECT NAME="myselect" onchange="javascript:change();">
      <OPTION VALUE="valueA" selected>ABCD
      <OPTION VALUE="valueB">EFGH
      </SELECT>
      </form>


      <script language="javascript">
      function change()
      {
      var value = document.myform.myselect.value;
      if(value == "valueA"){alert("test");}
      else {alert("test1");}
      }
      change();
      </script>
      </body>
      </html>

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