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[摘要]1、 <HTML> <HEAD> <PUBLIC> <COMPONENT TAGNAME="COMBOBOX"> <PROPERTY NAME="Text" GET="get_Text"...
1、
<HTML>
<HEAD>
<PUBLIC>
<COMPONENT TAGNAME="COMBOBOX">
<PROPERTY NAME="Text" GET="get_Text" PUT="put_Text">
<PROPERTY NAME="Width" GET="get_Width" PUT="put_Width">
<METHOD NAME="SetFocus" INTERNALNAME="htcFocus">
<METHOD NAME="AddItems" INTERNALNAME="htcAddItems">
<EVENT NAME="onYYCenter" ID="idEnter">
<EVENT NAME="onYYCChoose" ID="idChoose">
<ATTACH EVENT="oncontentready" ONEVENT="htcInit()">
</COMPONENT>
</PUBLIC>
<SCRIPT LANGUAGE="javascript">
function htcInit()
{
defaults.viewLink=document;
defaults.viewInheritStyle=false;
Body_Init();
}
function htcAddItems(items)
{
var i,len;
len=pCombo.options.length;
for(i=0;i<len;i++)
{pCombo.remove(0);}
for(i=0;i<items.length;i++)
{
var o;
if((typeof items[i])=='string')
{
if(!HasTheValue(items,i))
{
o=document.createElement('OPTION');
o.text=items[i];
pCombo.add(o);
}
}
}
}
function htcFocus()
{
pText.focus();
}
function get_Text()
{
return pText.value;
}
function put_Text(Value)
{
pText.value=Value;
}
function get_Width()
{
return pCombo.style.width;
}
function put_Width(Value)
{
pCombo.style.width=Value;
}
</SCRIPT>
<SCRIPT LANGUAGE="javascript">
function Body_Init()
{
var iRight=pCombo.clientWidth;
var iBottom=pCombo.clientHeight;
var iLeft=(pCombo.clientWidth-18);
pCombo.style.clip='rect(0,'+iRight+','+iBottom+','+iLeft+')';
pText.style.width=(pCombo.clientWidth);
pText.style.height=(pCombo.clientHeight);
pText.style.top=0;
pText.style.left=0;
}
function Combo_Select()
{
pText.value=pCombo.options[pCombo.selectedIndex].text;
}
function Text_ChkKey()
{
if(event.keyCode==13)
{
idEnter.fire();
}
}
function HasTheValue(sitems,i)
{
var ii;
for(ii=0;ii<i;ii++)
{
if(sitems[ii]==sitems[i])
return true;
}
return false;
}
</SCRIPT>
</HEAD>
<BODY>
<SELECT STYLE="position:absolute;left:0;top:0;" ONCHANGE="Combo_Select()" NAME="pCombo">
</SELECT>
<INPUT STYLE="position:absolute;left:0;top:0;z-index:4000" onKeyPress="Text_ChkKey()" TYPE="TEXT" NAME="pText">
</BODY>
</HTML>
2、
function getLeftPostion( theObj )
{
var pos = 0;
while ( theObj != null )
{
pos += theObj.offsetLeft;
//get the Object which contain theObj.
theObj = theObj.offsetParent;
}
return pos;
}
function getTopPostion( theObj )
{
var pos = 0;
while ( theObj != null )
{
pos += theObj.offsetTop;
//get the Object which contain theObj.
theObj = theObj.offsetParent;
}
return pos;
}
function checkVersion()
{
var isBadVersion=true;
var curVer=navigator.appVersion;
var pos=parseInt(curVer.indexOf("MSIE"));
if (pos>=1)
{
var intVer=parseInt(curVer.charAt(pos+5));
if (intVer>=5)
{ isBadVersion=false;}
}
if (isBadVersion)
{
var msg="This page may not be displayed properly:\n"+
" This product requires Microsoft Internet Explorer 5 or later browser only.";
alert(msg);
}
}
//check the browser version
checkVersion();
// the array of comboBoies
theArray = new Array();
function combobox(objId, objHandler)
{
this.comObj = document.all[objId];
this.comObj.selectedIndex = -1;
this.getValue = getValue;
this.doResize = doResize;
this.doChange = doChange;
this.loseFocus = loseFocus;
this.doSelectIdx = doSelectIdx;
this.focus = focus;
this.keyPress = keyPress;
this.change = change;
var strMsg="";
//------------------------------------------------------------------------------------------------------
// create the text object
//------------------------------------------------------------------------------------------------------
var txtObjIdName = objId + "_text";
if (document.all[txtObjIdName] != null)
{
strMsg="The following id: '" + txtObjIdName +"' is used internally by the Combo Box!\r\n"+
"Use of this id in your page may cause malfunction. Please use another id for your controls.";
alert(strMsg);
}
var txtInner = "<INPUT type='text' id=" + txtObjIdName + " name=" + txtObjIdName + " onblur='" + objHandler + ".loseFocus()' " + " onkeyup='" + objHandler + ".keyPress()'" + " onchange='" + objHandler + ".keyPress()'" + " style='display: none; position: absolute' value='' >";
this.comObj.insertAdjacentHTML("afterEnd", txtInner);
this.txtObj = document.all[txtObjIdName];
//------------------------------------------------------------------------------------------------------
// end
//------------------------------------------------------------------------------------------------------
this.beResizing = false;
this.doResize();
theArray[theArray.length] = this;
}
function loseFocus()
{
var theComObj = this.comObj;
var theTxtObj = this.txtObj;
var i;
theComObj.selectedIndex = -1;
if (theTxtObj.value == "")
{
return;
}
var optLen = theComObj.options.length;
for (i=0; i<optLen; i++)
{
var comVal = theComObj.options[i].text;
var txtVal = theTxtObj.value;
if (comVal == txtVal)
{
theComObj.selectedIndex = i;
return;
}
}
}
function doResize()
{
if (!this.beResizing)
{
this.beResizing = true;
this.txtObj.style.display="none";
this.comObj.style.position="static";
this.txtObj.style.posLeft = getLeftPostion(this.comObj);
this.txtObj.style.posTop = getTopPostion(this.comObj) + 1;
this.txtObj.style.posWidth = this.comObj.offsetWidth - 16;
this.txtObj.style.posHeight = this.comObj.offsetHeight;
this.comObj.style.position ="absolute";
this.comObj.style.posLeft = this.txtObj.style.posLeft;
this.comObj.style.posTop = this.txtObj.style.posTop;
this.offWidth = this.comObj.offsetWidth;
var strRect = "rect(0 "+(this.comObj.offsetWidth)+" "+ this.comObj.offsetHeight + " "+(this.txtObj.style.posWidth - 2 )+")";
this.comObj.style.clip = strRect;
this.txtObj.style.display="";
this.beResizing = false;
}
}
function doChange()
{
var idx = this.comObj.selectedIndex;
var opt = this.comObj.options[idx];
this.txtObj.value = opt.text;
this.txtObj.focus();
this.txtObj.select();
this.comObj.selectedIndex=-1;
}
function getValue()
{
return this.txtObj.value;
}
function doSelectIdx(i)
{
var optLen = this.comObj.options.length;
if ((i >=0) && (i < optLen))
{
this.comObj.selectedIndex = i;
this.txtObj.value = this.comObj.options[i].text;
return;
}
this.txtObj.value = "";
}
function focus()
{
this.txtObj.focus();
}
/*resize all combobox when window be resized*/
function resetAllSize()
{
var i;
for (i=0; i < theArray.length; i++)
{
theArray[i].doResize();
}
}
////////////////定位函数开始，我加的///////////////
function keyPress()
{
var txtStr;
var comStr;
var maxInt = 0;
var defInt = 0;
var defJ;
txtStr = this.txtObj.value;
//document.form1.test.value=txtStr;
var j;
for(j=0;j<this.comObj.options.length;j++)
{
comStr = this.comObj.options[j].text;
var m;
for(m=0;m<txtStr.length+1;m++)
{
if(txtStr.charCodeAt(m) != comStr.charCodeAt(m))
{
maxInt = m;
break;
}
}
if (defInt < maxInt)
{
defInt = maxInt;
defJ = j;
}
}
this.comObj.selectedIndex = defJ;
}
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