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Generating a combo box depending on selected field in a ...

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jjoint

jjoint

Programmer
Jan 4, 2003
9
CA
Hi! On my site's registration page I have a combo box that list the countries of the world. I would like to make it so that if a user accesses the page (Register.asp) the "Region" combo box would not be displayed. But when the user selects a country from the "country" combo box, that country's states/provinces would be displayed below the country combo box. The below is an example of what I wrote:


Code: 
<form name=&quot;register&quot; action=&quot;transfer.asp&quot; method=&quot;post&quot;>
<table width=&quot;400&quot; cellpadding=4 cellspacing=1 border=0 bgcolor=&quot;#000000&quot;>
<tr bgcolor=&quot;#F3F3F3&quot;>
  <td><font face=&quot;arial,helvetica&quot; size=&quot;2&quot;>Username</font></td>
  <td><input type=&quot;text&quot; name=&quot;username&quot; size=&quot;20&quot;></td>
</tr>
<tr bgcolor=&quot;#F3F3F3&quot;>
  <td><font face=&quot;arial,helvetica&quot; size=&quot;2&quot;>Password</font></font></td>
  <td><input type=&quot;password&quot; name=&quot;password&quot; size=&quot;20&quot;></td>
</tr>
<tr bgcolor=&quot;#F3F3F3&quot;>
  <td><font face=&quot;arial,helvetica&quot; size=&quot;2&quot;>First Name</font></td>
  <td><input type=&quot;text&quot; name=&quot;fname&quot; size=&quot;20&quot;></td>
</tr>
<tr bgcolor=&quot;#F3F3F3&quot;>
  <td><font face=&quot;arial,helvetica&quot; size=&quot;2&quot;>Last Name</font></td>
  <td><input type=&quot;text&quot; name=&quot;lname&quot; size=&quot;20&quot;></td>
</tr>
<tr bgcolor=&quot;#F3F3F3&quot;>
  <td><font face=&quot;arial,helvetica&quot; size=&quot;2&quot;>Email</font></td>
  <td><input type=&quot;text&quot; name=&quot;email&quot; size=&quot;20&quot;></td>
</tr>

<!--  Here's the Problem -->
<tr bgcolor=&quot;#F3F3F3&quot;>
  <td><font face=&quot;arial,helvetica&quot; size=&quot;2&quot;>Country</font></td>
  <td><font face=&quot;arial,helvetica&quot; size=&quot;2&quot;><select name=&quot;country&quot;>
<option  value=&quot;&quot; selected>[Select Your Country]<option  value=&quot;Canada&quot;>Canada<option  value=&quot;U.S.A&quot;>U.S.A<option  value=&quot;United&nbsp;Kingdom&quot;>United Kingdom<option  value=Afghanistan>Afghanistan<option  value=Albania>Albania<option  value=Algeria>Algeria<option  value=American&nbsp;Samoa<option  value=Andorra>Andorra<option  value=Angola>Angola<option  value=Anguilla>Anguilla<option  value=Antarctica>Antarctica<option  value=Antigua&nbsp;and&nbsp;Barbuda>Antigua and Barbuda<option  value=Argentina>Argentina<option  value=Armenia>Armenia<option  value=Aruba>Aruba<option  value=Australia>Australia<option  value=Austria>Austria<option  value=Azerbaijan>Azerbaijan<option  value=Bahamas>Bahamas<option  value=Bahrain>Bahrain<option  value=Bangladesh>Bangladesh<option  value=Barbados>Barbados<option  value=Belgium>Belgium<option  value=Belize>Belize<option  value=Belarus>Belarus<option  value=Benin>Benin<option  value=Bermuda>Bermuda<option  value=Bhutan>Bhutan<option  value=Bolivia>Bolivia<option  value=Bosnia&nbsp;and&nbsp;Herzegovina>Bosnia and Herzegovina<option  value=Botswana>Botswana<option value=Bouvet&nbsp;Island>Bouvet Island<option value=British&nbsp;Indian&nbsp;Ocean&nbsp;Territory>British Indian Ocean Territory<option  value=Brazil>Brazil<option  value=Brunei>Brunei<option  value=Bulgaria>Bulgaria<option  value=Burkina&nbsp;Faso>Burkina Faso<option  value=Burundi>Burundi<option  value=Cambodia>Cambodia<option  value=Cameroon>Cameroon<option  value=Canada>Canada<option  value=Cape&nbsp;Verde>Cape Verde<option  value=Cayman&nbsp;Islands>Cayman Islands<option  value=Central&nbsp;African Republic>Central&nbsp;African&nbsp;Republic<option  value=Chad>Chad<option  value=Chile>Chile<option  value=China>China<option  value=Christmas&nbsp;Island>Christmas Island<option value=&quot;Cocos &#40;Keeling&#41; Islands&quot;>Cocos &#40;Keeling&#41; Islands<option  value=Colombia>Colombia<option  value=Comoros>Comoros<option  value=Congo>Congo<option  value=Democratic&nsp;Republic&nbsp;of&nbsp;the&nbsp;Congo>Democratic Republic of the Congo<option  value=Cook&nbsp;Islands>Cook Islands<option  value=Costa&nbsp;Rica>Costa Rica<option  value=Côte&nbsp;d'Ivoire>Côte d'Ivoire<option  value=&quot;Croatia &#40;Hrvatska&#41;&quot;>Croatia &#40;Hrvatska&#41;<option  value=Cuba>Cuba<option  value=Cyprus>Cyprus<option  value=Czech&nbsp;Republic>Czech Republic<option  value=Denmark>Denmark<option  value=Denmark>Djibouti<option  value=Dominica>Dominica<option  value=Dominican&nbsp;Republic>Dominican Republic<option value=East&nbsp;Timor>East Timor<option  value=Ecuador>Ecuador<option  value=Egypt>Egypt<option  value=El&nbsp;Salvador>El Salvador<option  value=Equatorial&nbsp;Guinea>Equatorial Guinea<option  value=Eritrea>Eritrea<option  value=Estonia>Estonia<option  value=Ethiopia>Ethiopia<option  value=&quot;Falkland Islands &#40;Islas Malvinas&#41;&quot;>Falkland Islands &#40;Islas Malvinas&#41;<option value=Faroe&nbsp;Islands>Faroe Islands<option  value=Fiji>Fiji<option  value=Finland>Finland<option  value=France>France<option  value=French&nbsp;Guiana>French&nbsp;Guiana<option  value=French&nbsp;Polynesia>French&nbsp;Polynesia<option value=French&nbsp;Southern&nbsp;and&nbsp;Antarctic&nbsp;Lands>French Southern and Antarctic Lands<option  value=Gabon>Gabon<option  value=Gambia>Gambia<option  value=Germany>Germany<option  value=Georgia>Georgia<option  value=Ghana>Ghana<option value=Gibraltar>Gibraltar<option  value=Greece>Greece<option  value=Greenland>Greenland<option  value=Grenada>Grenada<option  value=Guadeloupe>Guadeloupe<option  value=Guam>Guam<option  value=Guatemala>Guatemala<option  value=Guinea>Guinea<option  value=Guinea-Bissau>Guinea-Bissau<option  value=Guyana>Guyana<option  value=Haiti>Haiti<option value=Heard&nbsp;Island&nbsp;and&nbsp;McDonald&nbsp;Islands>Heard Island and McDonald Islands<option  value=Honduras>Honduras<option  value=Hong&nbsp;Kong&nbsp;(China)>Hong Kong<option  value=Hungary>Hungary<option  value=Iceland>Iceland<option  value=India>India<option  value=Indonesia>Indonesia<option  value=Iran>Iran<option  value=Iraq>Iraq<option  value=Ireland>Ireland<option  value=Israel>Israel<option  value=Italy>Italy<option  value=Jamaica>Jamaica<option  value=Japan>Japan<option  value=Jordan>Jordan<option  value=Kazakhstan>Kazakhstan<option  value=Kenya>Kenya<option  value=Kiribati>Kiribati<option value=North&nbsp;Korea>North Korea<option  value=South&nbsp;Korea>South Korea<option  value=Kyrgyzstan>Kyrgyzstan<option  value=Kuwait>Kuwait<option  value=Laos>Laos<option  value=Latvia>Latvia<option  value=Lebanon>Lebanon<option  value=Lesotho>Lesotho<option  value=Liberia>Liberia<option  value=Libya>Libya<option  value=Liechtenstein>Liechtenstein<option  value=Lithuania>Lithuania<option  value=Luxembourg>Luxembourg<option  value=Macau>Macau<option  value=Macedonia>Macedonia<option  value=Madagascar>Madagascar<option  value=Malawi>Malawi<option  value=Malaysia>Malaysia<option  value=Maldives>Maldives<option  value=Mali>Mali<option  value=Malta>Malta<option  value=Marshall&nbsp;Islands>Marshall Islands<option  value=Martinique>Martinique<option  value=Mauritania>Mauritania<option  value=Mauritius>Mauritius<option  value=Mayotte>Mayotte<option  value=Mexico>Mexico<option  value=Micronesia>Micronesia<option  value=Moldova>Moldova<option  value=Monaco>Monaco<option  value=Mongolia>Mongolia<option  value=Montserrat>Montserrat<option  value=Morocco>Morocco<option  value=Mozambique>Mozambique<option  value=Myanmar>Myanmar<option  value=Namibia>Namibia<option  value=Nauru>Nauru<option  value=Nepal>Nepal<option  value=Netherlands>Netherlands<option  value=Netherlands&nbsp;Antilles>Netherlands Antilles<option  value=New&nbsp;Caledonia>New Caledonia<option  value=New&nbsp;Zealand>New Zealand<option  value=Nicaragua>Nicaragua<option  value=Niger>Niger<option  value=Nigeria>Nigeria<option  value=Niue>Niue<option value=Norfolk&nbsp;Island>Norfolk Island<option  value=Norway>Norway<option  value=Northern&nbsp;Mariana&nbsp;Islands>Northern Mariana Islands<option  value=Oman>Oman<option  value=Pakistan>Pakistan<option  value=Palau>Palau<option  value=Panama>Panama<option  value=Papua&nbsp;New&nbsp;Guinea>Papua New Guinea<option  value=Paraguay>Paraguay<option  value=Peru>Peru<option  value=Philippines>Philippines<option  value=Pitcairn Island>Pitcairn&nbsp;Island<option  value=Poland>Poland<option  value=Portugal>Portugal<option  value=Puerto&nbsp;Rico>Puerto Rico<option  value=Qatar>Qatar<option  value=Reunion>Reunion<option  value=Romania>Romania<option  value=Russia>Russia<option  value=Rwanda>Rwanda<option value=Saint&nbsp;Helena>Saint Helena<option value=Saint&nbsp;Kitts&nbsp;and&nbsp;Nevis>Saint Kitts and Nevis<option  value=Saint&nbsp;Lucia>Saint Lucia<option value=Saint&nbsp;Pierre&nbsp;and&nbsp;Miquelon>Saint Pierre and Miquelon<option  value=Saint&nbsp;Vincent&nbsp;and&nbsp;the&nbsp;Grenadines>Saint Vincent and the Grenadines<option  value=Samoa-American>Samoa-American<option  value=Samoa-Western>Samoa-Western<option  value=San&nbsp;Marino>San Marino<option  value=São&nbsp;Tomé&nbsp;and&nbsp;Príncipe>São&nbsp;Tomé&nbsp;and&nbsp;Príncipe<option  value=Saudi&nbsp;Arabia>Saudi Arabia<option  value=Senegal>Senegal<option value=Serbia&nbsp;and&nbsp;Montenegro>Serbia and Montenegro<option  value=Seychelles>Seychelles<option  value=Sierra&nbsp;Leone>Sierra Leone<option  value=Singapore>Singapore<option  value=Slovakia>Slovakia<option  value=Slovenia>Slovenia<option  value=Solomon&nbsp;Islands>Solomon Islands<option  value=Somalia>Somalia<option  value=South&nbsp;Africa>South Africa<option value=South&nbsp;Georgia&nbsp;and&nbsp;the&nbsp;South&nbsp;Sandwich&nbsp;Islands>South Georgia and the South Sandwich Islands<option  value=Spain>Spain<option  value=Sri&nbsp;Lanka>Sri Lanka<option  value=Sudan>Sudan<option  value=Suriname>Suriname<option value=Svalbard&nbsp;and&nbsp;Jan&nbsp;Mayen>Svalbard and Jan Mayen<option  value=Swaziland>Swaziland<option  value=Sweden>Sweden<option  value=Switzerland>Switzerland<option  value=Syria>Syria<option  value=Taiwan>Taiwan<option  value=Tajikistan>Tajikistan<option  value=Tanzania>Tanzania<option  value=Thailand>Thailand<option  value=Togo>Togo<option value=Tokelau>Tokelau<option  value=Tonga>Tonga<option  value=Trinidad&nbsp;and&nbsp;Tobago>Trinidad and Tobago<option  value=Tunisia>Tunisia<option  value=Turkey>Turkey<option  value=Turkmenistan>Turkmenistan<option value=Turks&nbsp;and&nbsp;Caicos&nbsp;Islands>Turks and Caicos Islands<option  value=Tuvalu>Tuvalu<option  value=Uganda>Uganda<option  value=Ukraine>Ukraine<option  value=United&nbsp;Arab&nbsp;Emirates>United Arab Emirates<option  value=United&nbsp;Kingdom>United Kingdom<option  value=USA>United States<option value=United&NBSP;States&nbsp;Minor&nbsp;Outlying&nbsp;Islands>United States Minor Outlying Islands<option  value=Uruguay>Uruguay<option  value=Uzbekistan>Uzbekistan<option  value=Vanuatu>Vanuatu<option  value=Vatican&nbsp;City>Vatican City<option  value=Venezuela>Venezuela<option value=Viet&nbsp;Nam>Viet Nam<option value=&quot;Virgin Islands &#40;British&#41;&quot;>Virgin Islands &#40;British&#41;<option  value=Virgin&nbsp;Islands>Virgin Islands<option value=Wallis&nbsp;and&nbsp;Futuna>Wallis and Futuna<option  value=Western&nbsp;Sahara>Western Sahara<option  value=Yemen>Yemen<option  value=Yugoslavia>Yugoslavia<option  value=Zambia>Zambia<option  value=Zimbabwe>Zimbabwe</select></td>
</font></tr>
<%
If country<> Canada Then
    Response.Write(&quot;<tr bgcolor=&quot;&quot;#F3F3F3&quot;&quot;>
  <td><font face=&quot;&quot;arial,helvetica&quot;&quot; size=&quot;&quot;2&quot;&quot;>City/Region</font></td>
  <td><font face=&quot;arial,helvetica&quot; size=&quot;&quot;2&quot;&quot;><select name=&quot;&quot;Region&quot;&quot;>
<option  value=&quot;&quot;>[Select Your Province]<option  value=&quot;&quot;Albert&quot;&quot;>Alberta<option  value=&quot;&quot;British Columbia&quot;&quot;>British Columbia<option  value=&quot;&quot;Manitoba&quot;&quot;>Manitoba<option  value=&quot;&quot;New Brunswick&quot;&quot;>New Brunswick<option  value=&quot;&quot;New Foundland&quot;&quot;>New Foundland<option  value=&quot;&quot;Northwest Territories&quot;&quot;>Northwest Territories<option  value=&quot;&quot;Nova Scotia&quot;&quot;>Nova Scotia<option  value=&quot;&quot;Nunavut&quot;&quot;>Nunavut<option  value=&quot;&quot;Ontario&quot;&quot;>Ontario<option  value=&quot;&quot;P.E.I&quot;&quot;>Prince Edward Island<option  value=&quot;&quot;Quebec&quot;&quot;>Quebec<option  value=&quot;&quot;Saskatchewan&quot;&quot;>Saskatchewan<option  value=&quot;&quot;Yukon&quot;&quot;>Yukon</select>
</font></td>
</tr>&quot;)
Elseif country<>&quot;&quot;
    Response.Write(&quot;<tr bgcolor=&quot;&quot;#F3F3F3&quot;&quot;>&quot;)
End If
%>
  <td align=&quot;center&quot; colspan=&quot;2&quot;><input type=&quot;submit&quot; value=&quot;Join&quot;></td>
</tr>
</table>
</form>

============================================================
I know this is very wrong. This just makes the HTTP 500 - Internal server error: The page cannot be displayed page come up. As you can see I have absolutely no clue how to do this. I know now that somehow I need to use the onChange attribute in my dropdown combobox list in my form but I'm not sure how. Help is much appreciated!

Thanks in advance,
Josh
 
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Try this
If country<> &quot;Canada&quot; Then

And 1 more thing.
Open IE, Tools->Internet Options->Advanced and then look at Browsing and uncheck the Show Friendly HTTP Errors.

Close IE and open that page again, you should get the ASP error now.

________
George, M
 
Upvote 0 Downvote
<script>
CanadaArr = new Array(&quot;Albert&quot;,&quot;British Columbia&quot;,&quot;Manitoba&quot;,&quot;New Brunswick&quot;)
USArr = new Array(&quot;AK&quot;,&quot;CA&quot;,&quot;DE&quot;,&quot;MD&quot;,&quot;VA&quot;)

function showRegion(){
showField = document.getElementById(&quot;regDisp&quot;)
regSelect = document.getElementById(&quot;region&quot;)
regSelect.options.length = 0
ctry = document.myForm.country.options[document.myForm.country.selectedIndex].value

if (ctry != &quot;&quot;){
showField.style.display = &quot;block&quot;
regArr = new Array()
regArr = eval(ctry + &quot;Arr&quot;)
for (x=0; x<regArr.length; x++){
regSelect.options[x] = new Option(regArr[x],regArr[x])
}
}
else{
showField.style.display = &quot;none&quot;
}
}
</script>

<form name=&quot;myForm&quot;>
Country: <select id=&quot;country&quot; onChange=&quot;showRegion()&quot;>
<option value=&quot;&quot;>Choose One
<option value=&quot;Canada&quot;>Canada
<option value=&quot;US&quot;>US
</select>

<div id=&quot;regDisp&quot; style=&quot;display:none;&quot;>
Region: <select id=&quot;region&quot;></select>
</div>
</form>

Programming today is a race between software engineers striving to build better and bigger idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. - Rick Cook
 
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