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JSP matches the drop-down box option based on the input content

Source: Internet
Author: User
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<% @ Page contenttype = "text/html; charset = gb2312" %>
<HTML>
<Head>
<Title> matching options based on input </title>
</Head>
<Script language = "JavaScript">
<! --
VaR whichtext;
Function selectstation (OBJ ){
VaR objselstation = OBJ;
If (obj. selectedindex! =-1 ){
VaR stationname = obj. Options [obj. selectedindex]. text;
Whichtext. value = stationname;
}
Showdivstation (this, false, 'selstation ') // click an option and close the drop-down box.
}

// Response to the text event
VaR paged = 0, pageu;
Function similarfind (txtobj, seledname ){
VaR curstationname = txtobj. value;
VaR objselstation = eval ("document. myform." + seledname); // modify it based on the actual form name
VaR stationlength = objselstation. Options. length;
Pageu = paged;

// Match the data in text with the data in the drop-down box
For (VAR I = 0; I <stationlength; I ++ ){
VaR stationname = objselstation. Options [I]. text;
VaR Re = new Regexp ("^" + curstationname );
If (stationname. Match (re )){
If (I <stationlength-10 ){
Objselstation. selectedindex = I + 10;
}
Objselstation. selectedindex = I;
Paged = I;
Pageu = I;
Break;
}
}
// Response move down key
If (event. keycode = 40 ){
Paged ++;
If (Paged = objselstation. Options. Length) paged = 0;
Txtobj. value = objselstation. Options [paged]. text;
Objselstation. selectedindex = paged;
}
// Response to the move-up key
If (event. keycode = 38 ){
-- Pageu;
If (pageu <0) pageu = objselstation. Options. Length-1;
Txtobj. value = objselstation. Options [pageu]. text;
Objselstation. selectedindex = pageu;
}
}
// Position displayed in the drop-down list
Function showdivstation (OBJ, B, selname ){
VaR divstation = eval ("document. myform." + selname); // modify according to the actual form name
If (B ){
Whichtext = OBJ;
Divstation. style. Top = 20;
Divstation. style. Left = 0;
Divstation. style. Display = "Block ";
Similarfind (OBJ, selname );
} Else {
Divstation. style. Display = "NONE ";
}
}
// -->
</SCRIPT>
<Body bgcolor = "# ffffff" topmargin = "0" leftmargin = "0">
<Form name = "myform">
<Table border = "0" style = "border-collapse: collapse" bordercolor = "#111111" width = "100%" id = "autonumber1">
<Tr>
<TD width = "6%" valign = "TOP"> city </TD>
& Lt; TD width = "94%" bgcolor = "# ffffff" & gt;
<! -- When onfocus is used to obtain the focus, the onkeyup dialog box pops up and press the up/down key to move in the drop-down list. -->
<Input type = "text" size = "70" name = "put" style = "width: 120" onfocus = "showdivstation (this, true, 'selstation ') "onkeyup =" similarfind (this, 'selstation ') "value =" ">
<! -- Select option when onclick is clicked -->
<Select name = "selstation" size = "6" style = "display: none; width: 120;" onclick = "selectstation (this)">
<Option value = "BJ"> Beijing </option>
<Option value = "SD"> Shandong </option>
<Option value = "SX"> Shanxi </option>
<Option value = "heb"> Hebei </option>
<Option value = "inherit"> Henan </option>
<Option value = "Hub"> Hubei </option>
<Option value = "hun"> Hunan </option>
<Option value = "GD"> Guangdong </option>
<Option value = "GX"> Guangxi </option>
</SELECT>
</TD>
</Table>
</Form>
</Body>
</Html>

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Related Keywords:
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