Dropdownlist可输入，可选择的方法-ASP教程,ASP应用

function addtxttanto(va){

document.all("txttitle").value=va; document.all("txttitle").select();

}

function checktitle(){

var drp = document.all("ddltitle");

var t=document.all("txttitle");

var j=0;

if(t.value==""){

}else{

for(var i=0;i<drp.length;i++){

if(t.value==drp.options(i).text){

drp.value=drp.options(i).value;

break;

}else{

j=j+1;

}

}

if(j==drp.length){

t.value="";

t.select();

alert("タイトルが存在していません。");

}

}

}

<div id="seldiv" style="z-index: 100; left: 48px; visibility: visible; clip: rect(0px 110px 80px 92px); position: absolute; top: 26px">

<asp:dropdownlist id="ddltitle" style="z-index: -1" runat="server" width="110"></asp:dropdownlist>

</div>

<asp:textbox id="txttitle" style="z-index: 103; left: 47px; position: absolute; top: 26px" runat="server" font-size="10" width="111" maxlength="50" height="22"></asp:textbox>

private sub page_load(byval sender as system.object, byval e as system.eventargs) handles mybase.load txttitle.attributes("onblur") = "javascript:checktitle();"

ddltitle.attributes.add("onchange", "addtxttanto(this.options[this.selectedindex].innertext)")

end sub