下拉框选择后，下拉框的值同步显示在文本框中？

huang59 2003-03-26 04:18:35

同一表单，下拉框选择后，下拉框的值同步显示在文本框中

对javascript不熟，求完整代码

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huang59 2003-03-27

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问题解决

huang59 2003-03-26

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请专家再会诊，问什么选择3后，33中不自动填入，我错在那里了？

<html>
<body>
<script language="JavaScript">
var arrSel=["one","two","three","four"];
var i=0,arrData=[];
arrData[i++]=["请选择大类","请选择小类","请选择品牌","请选择型号"]
arrData[i++]=["2000","4","14","一点"]
arrData[i++]=["2000","4","14","二点"]
arrData[i++]=["2000","4","18","三点"]
arrData[i++]=["2000","7","14","二点"]
arrData[i++]=["2001","6","15","二点"]
arrData[i++]=["2001","6","23","七点"]
arrData[i++]=["2001","8","18","二点"]
arrData[i++]=["2002","7","1","二点"]
arrData[i++]=["2002","7","1","三点"]
arrData[i++]=["2002","7","11","二点"]
arrData[i++]=["2002","7","19","二点"]
</script>
<form name="form1" method="POST">
1<select name=one></select> <br>
2<select name=two></select> <br>
3<select name=three onchange="this.form.pinpai.value = this.value"></select>
33<input type="text" name="pinpai" size="20" > <br>
4<select name=four></select>
44<input type="text" name="xinghao" size="20"><br>
<script>
function qswhInit(num){
var i,j,arrTemp=[];
for(i=0;i<num;i++)arrTemp[i]=document.all(arrSel[i]).options[document.all(arrSel[i]).selectedIndex].text
with(document.all(arrSel[num])){
length=0
for(i=0;i<arrData.length;i++){
for(j=0;j<num;j++)if(arrTemp[j]!=arrData[i][j])break;
if(j!=num)continue;
if(length==0||options[length-1].text!=arrData[i][num])
options[length++].text=arrData[i][num];
}
onchange=new Function("qswhInit("+(num+1)+")");
onchange();
}
}
qswhInit(0);//初始化
</script></form>
</body>
</html>

saucer 2003-03-26

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add your server code between <select>...</select>, for example, in ASP, you would do

<select ...>
<%
do until rs.eof
Response.Write "<option value='" & rs("fieldname") & "'>" & rs("fieldname") & "</option>"
rs.movenext
loop
%>
</select>

huang59 2003-03-26