Auto select of Select box and Submit

[aHash]

I have a select box. I am auto selecting if my dynamically poulated items count is 2 (first item is space and second is a legit value)

here is my code.

                            if (params.getReportCategory()!=null && params.getReportCategory().getCategoryID().equals(cat.getCategoryID())) {
                                selected = "selected";
                            } %>
                            <option value="<%=cat.getCategoryID()%>" <%=(allCategories.values().size()==2)?"selected":""%> ><%=StringUtils.escapeHTML(cat.getCategoryName())%></option><%

But once the selection is done my onchange() event does not fire. How I can make and autoselection to fire the onchange to fire?? I tried onselect but no luck.

 

[monksnake]

Setting a different value via javascript on a select box will not fire events based on that select box.

So, after your autoselection, call the same function that you call in the onchange event.



<.

 

[aHash]

thanks monksnake. How can I call the same function without having a text and an anchor tag? Is it possible?

 

[aHash]

<script type="text/javascript"> "javascript:update()"; </script>

[code]

tried the above. Bit it says, invalid location for tage <script>  :-(

 

[cLFlaVA]

to call the update function, simply do:

<script type="text/javascript">update();</script>
[code]

you may need to place this just before your closing </body> tag.

 
 
*cLFlaVA
----------------------------
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[url=http://www.coryarthus.com/][URL unfurl="true"]http://www.coryarthus.com/[/URL][/url]

 

[monksnake]

If you have something like

<select onchange="thisFunction()">

You can call the same function within <script> tags just by doing this:

<script type="text/javascript">
thisFunction();
</script>

But looking at your code in your orginal post, are you sure you're talking about Javascript?



<.

 

[cLFlaVA]

that should be:

<script type="text/javascript">update();</script>

*cLFlaVA
----------------------------
[tt]"quote goes here"[/tt]
[URL unfurl="true"]http://www.coryarthus.com/[/url]

 

[aHash]

Thanks to you two ClFlava, Monk.

Yes corrected the sytax and it goes into infinite looping.
Any ideas why it would do that? I am going to try placing at
just before </body> tag ..

Also monk , for your question, yes I am sure it is javascript. Below is the code for update() function, just to confirm it to you.

function update() {
document.formName.<%=ActionController.ACTION%>.value='report.ufms.UpdateUFMSFileReportSettings';
document.formName.submit();
}

 

[monksnake]

It looks like you are infinitely submitting the form.

This is because you are calling the update function under any condition if it is encased in <script> tags like the above posts.

You need to make the form submit only in certain conditions, not in all conditions.

<.

 

[aHash]

This is harder than I thought. I understand that I am submitting the for infinite times.

But calling the function anywhere outside of the while loop which has <option> tag does not respond the call at all.

If I place the call to update() function right next to the
<option> tag then it goes into infinite loop. I dont see an alternative.. Here is the code part: Please tell me what I am doing wrong.

<tr>
<td class="label">Category:</td>
<td width=10></td>
<td class="table_cell">                
 <select name="reportCategory" id="reportCategory_ID" onchange="update()">
	<%  if (params.getReportCategory()==null) { %>
             <option value="">&nbsp;</option><%
          } 
			it = new SortIterator(allCategories.values().iterator(), new GenericComparator("getCategoryName", UFMSFileReportCategory.class));
			while (it.hasNext()) {
				UFMSFileReportCategory cat = (UFMSFileReportCategory) it.next();
				if (currentUser.getPermissionHandler().hasUFMSCategoryPermissions(cat.getCategoryGroup())){                    
					if (cat.isFlatFile()==isFlatFile) { 
						String selected = "";
						if (params.getReportCategory()!=null && params.getReportCategory().getCategoryID().equals(cat.getCategoryID())) {
							selected = "selected";
						} %>
						<option value="<%=cat.getCategoryID()%>" <%=(allCategories.values().size()==2)?"selected":""%> ><%=StringUtils.escapeHTML(cat.getCategoryName())%></option>
						<% [COLOR=red]//if I write the code here then infinite looping occurs [/color]
					}
				}
			}
    %>
 </select> <%
		if (params.getReportCategory()!=null) { %>
			<script type="text/javascript">update();</script><%
		}  [COLOR=red ]//this does not respond to the call [/color]
		if (params.getReportCategory()==null) { %>
			<img src="/images/attention.gif" title="Please select a report category to continue"><%
		}
	%>    
	</td>
</tr>

 

[monksnake]

Well I looked at your code and did some testing.
Your call to update() should absolutely work. What I think is going on is params.getReportCategory is == null.

Put a Response.Write() here:

        [!]Response.Write(params.getReportCategory())[/!]
        if (params.getReportCategory()!=null) { %>
            <script type="text/javascript">update();</script><%
        }  //this does not respond to the call 
        if (params.getReportCategory()==null) { %>
            <img src="/images/attention.gif" title="Please select a report category to continue"><%
        }

See what that returns for you.

Cause everything looks fine with the code you just posted.

P.S. the place where the <script> tags currently are is the place it should be as opposed to the place where you got the infinite loop.

<.

 

[aHash]

grrr!!!.... interesting.

I am unable to use Response.write , As I Dont have anywhere in the related classes..

But I am sure params.getReportCategory() is not null or otherwise the image in the next if should be displayed, which is not happening.

I am trying a small trick, like this.. But

            %>
               </select> <%
                int iS=1;
               	do  { %>
               		<script type="text/javascript">update();</script>
               		
               	<%
               	iS=iS +1;
               	} while (iS==1);
                if (params.getReportCategory()==null) { %>
                    <img src="/images/attention.gif" title="Please select a report category to continue"><%
                }
            %>

The idea is to execute just once and then immediately after the while should break.. but noluck so far.. it is looping still.. will update here

 

[aHash]

Monk,

Actually I was wrong you were right. The gparams.getReportCategory()==null is true and the image displayed(it is very small image of 5 by 5 size.)

I added the call to update() function inside the if.

Everything works as expected. Thanks for staying with me.

               </select> <%
                if (params.getReportCategory()==null) { %>
                    <img src="/images/attention.gif" title="Please select a report category to continue">
                    <script type="text/javascript">update();</script><%
                }
            %>

 

[monksnake]

No problem, glad you got it working.

<.