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How to refresh form page after selection from dropdown?

Posted on 2010-08-19
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Last Modified: 2012-05-10
I have a hidden text area that I would like to show when a particular selection is made from a dropdown box using classic asp.
So I figure the form page would need to refreshed?
I have tried this

 onchange="this.form1.submit()"

but it doesn't work.

Thanks in advance experts.


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Question by:colonelblue
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3 Comments
 
LVL 18

Expert Comment

by:Rajar Ahmed
ID: 33482001
Are you doing Show/hide process according to selecton of dropdown ?
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
    <script type="text/javascript">
function ChangeDropdowns(value){

if(value=="diff"){
document.getElementById('text_are').style.display='none';
}else if(value=="all"){
document.getElementById('text_are').style.display='block';
}
else
{
document.getElementById('all_fields').style.display='none';
}
}
</script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <select id="test" name="test" onchange="ChangeDropdowns(this.value);">
    <option value="">Select</option>
    <option value="all">Show</option>
    <option value="diff">hide</option>
</select>
 </div> 
<textarea id="text_are" name="text_are" style="display:none" > </textarea>
   </form>
</body>
</html>

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Author Comment

by:colonelblue
ID: 33487324
Thank you. Pretty close but perhaps I should be more exact, my apologies.

 I have code here to hide a region. Depending on what the select box's value is when the region would be shown. However  the problem is when I initially select an option in the dropdown, the code to check if the region should be shown or not will only work if the page is refreshed otherwise it will not see that I changed the value in the dropdown box.

The effect I am going for is that on this form there is no reason for the "additional fields ( in a table )  to show" if it does not apply to the initially selected choice.

Thanks again!





The select box

<select distinct name="Header" id="Header">
          <option value="<%=((Recordset1.Fields.Item("Page_Header").Value))%>" selected="selected"><%=((Recordset1.Fields.Item("Page_Header").Value))%></option>
          <option value="Maintenance Notice">Maintenance Notice</option>
          <option value="Systems Down">Systems Down</option>
          <option value="All Systems Go">All Systems Go</option>
        </select>



and the hidden region:
<% if Recordset1.Fields.Item("Page_Header").Value = "Maintenance Notice" then ' Adv Conditional Region %>
  <table width="90%" height="75" border="1" cellpadding="7" cellspacing="7" id="form2">
    <tr>
      <td valign="top"><p>For Maintenance Mode
        : </p>
        <table width="381" height="105" border="1" id="form2">
          <tr>
            <td width="131"> Service Date:</td>
            <td width="234"><input name="ServiceDate" type="text" id="ServiceDate" />
              <a href="#" onclick="KW_doCalendar('ServiceDate',0)">Select Date</a></td>
            </tr>
          <tr>
            <td>Sscheduled Time</td>
            <td><input type="text" name="TimeDown" id="TimeDown" /></td>
            </tr>
          <tr>
            <td>&nbsp;</td>
            <td>&nbsp;</td>
            </tr>
          </table>
        <p> <br />
          <label for="ServiceDate"></label>
          <br />
          <label for="TimeDown"></label>
          <br />
          </p></td>
      </tr>
  </table>
  <% end if ' Recordset1.Fields.Item("Page_Header").Value = "Maintenance Notice" %>

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LVL 18

Accepted Solution

by:
Rajar Ahmed earned 2000 total points
ID: 33491619
>i am not getting fully with u .

" i gues u want to to display dat table only for maintainence without page refresh .."

>if dis is d case try this code.
>also i guess its continuation of othr question u asked which is under progess .
so i combined wt dat code itself .


Meeran03
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
    <script type="text/javascript">
function ChangeDropdowns(value){

if(value=="Maintenance Notice"){
document.getElementById('form2').style.display='block';
}
else 
{
document.getElementById('form2').style.display='none';
}

}
</script>
</head>
<body>

'The select box


<%
static_value = split("Maintenance Notice,System Down,All Systems Go",",")
sql = "select pageview from tbl1"  ' Adjust ur query 
set dr = con.execute(sql)
dim chk_duplicate
chk_duplicate = false
%>

<select distinct name="Header" id="Header" onchange="ChangeDropdowns(this.value)">
         
           <% for each static_ind in static_value%>
          <option value="<%=static_ind%>"><%=static_ind%></option>
           <%next%>
          <%
		  while not dr.eof 
		     for each static_ind in static_value
			     if  trim(static_ind) = trim(dr(0)) then 
				    chk_duplicate = true
				 end if 	
			next
			 if chk_duplicate = false then %>
			  <option value="<%=dr(0)%>"><%=dr(0)%></option>
			<% end if 
			 dr.movenext 
			 chk_duplicate = false   'Again setting the status
		  wend 	 
		  %>
          
</select>

  <div  id="form2" style="display:none">
  <table width="90%" height="75" border="1" cellpadding="7" cellspacing="7" >
    <tr>
      <td valign="top"><p>For Maintenance Mode
        : </p>
        <table width="381" height="105" border="1" id="form2">
          <tr>
            <td width="131"> Service Date:</td>
            <td width="234"><input name="ServiceDate" type="text" id="ServiceDate" />
              <a href="#" onclick="KW_doCalendar('ServiceDate',0)">Select Date</a></td>
            </tr>
          <tr>
            <td>Sscheduled Time</td>
            <td><input type="text" name="TimeDown" id="TimeDown" /></td>
            </tr>
          <tr>
            <td>&nbsp;</td>
            <td>&nbsp;</td>
            </tr>
          </table>
        <p> <br />
          <label for="ServiceDate"></label>
          <br />
          <label for="TimeDown"></label>
          <br />
          </p></td>
      </tr>
  </table>
  </div>

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