2 ways to implement the editable drop-down box _javascript Tips

2 ways to implement the editable drop-down box _javascript Tips _

Last Update:2015-07-17 Source: Internet

Author: User

Tags microsoft frontpage

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Editable drop-down box one,

<div style= "position:relative;" >  
<select style= "width:120px", "onchange=" document.getElementById (' input '). Value=this.value "  > 
<option value= "Class A" >a </option>  
<option value= Category "Class B" >b </option>  
<option value= category "Class C" >c </option>  
<option value= category "Class D" >d </option>  
</select>  
<input id= "input" name= "input" style= "POSITION:ABSOLUTE;WIDTH:99PX;HEIGHT:16PX;LEFT:1PX;TOP:2PX; border-bottom:0px;border-right:0px;border-left:0px;border-top:0px; " >  
</div>

Editable drop-down box two,


 
  <body>  <table style= "Border:2px outset;background-color: #d2e8FF"   Width= " height="  align= "center" >   <tr>    < Td width= "60%"  height= " align=" center >     <select name = "Fason" >      <option value= "editable drop-down box" > Editable drop-down box </option>       <option value= "Author" > Author </option>      </select>    </td>   </tr>  </table>   <script language= "JavaScript" >   function combox (obj, select)  {     this.obj = obj     this.name =  select;     this.select = document.getelementsbyname (select) [0];      /* toConvert drop-down box */    }    /* Initialize object */   combox.prototype.init  = function ()  {     var inputbox =  "<input name = ' combox_ '  + this.name +  '  onchange= ' " + this.obj + ". Find () '   "     inputbox += " style= ' position:absolute;width: " +  ( THIS.SELECT.OFFSETWIDTH&NBSP;-&NBSP;16)  +  "; Height:"  + this.select.offsetheight +   "Left:"  + getl (this.select)  +  "Top:"  + gett (this.select)  +  "' > "     document.write (InputBox)      with ( This.select.style)  {      left = getl (this.select)        top = gett (This.select)       position =   "Absolute"       clip =  rect (0   +  (this.select.offsetWidth)  +     +  this.select.offsetheight +  " "  +  (this.select.offsetwidth - 18)  +   ")"        /* cut drop-down frame */     }      this.select.onchange = new function (this.obj +  ". Change ()")       this.change ()     }    /* initialization End */     ////////Object Event Definition///////    combox.prototype.find = function ()  {     /* when the value of the input box is searched, the drop-down box is automatically positioned */    var inputbox =  Document.getelementsbyname ("Combox_"  + this.name) [0]    with (This.select)  {      for  (i = 0; i < options.length; i++)        if  (optIons[i].text.indexof (inputbox.value)  == 0)  {        Selectedindex = i       this.change ();        break;      }    }   }    combox.prototype.change = function ()  {     /* Defines the onchange event */     var inputbox = document.getelementsbyname for the drop-down box (" Combox_ " + this.name) [0]     inputbox.value = this.select.options [This.select.selectedindex].text;     with (InputBox)  {       select ();       focus ()      };     }    ////////Object event End///////     /* Common locator function (get control absolute coordinates) */
 function Getl (e) {var l = e.offsetleft;    while (e = e.offsetparent) L + = E.offsetleft; Return L}
 function Gett (e) {var t = e.offsettop;     while (E = e.offsetparent) T + = E.offsettop; Return T}/* END */</script> <script language= "JavaScript" > var a = new Combox ("A", "Fason") A.ini T () </script>
 </body>
 
 
2 ways to implement the editable drop-down box _javascript Tips _

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