Prompting the user to make a selection in the Dropdownlist box

[Former Member]

Hi, I have created a DropdownList box using the following code:

<tr>

<td>

<hbj:dropdownListBox

id="ORGANIZATION"

selection=" ">

<hbj:listBoxItem key=" " value=" " />

<hbj:listBoxItem key="Marketing" value="Marketing" />

<hbj:listBoxItem key="Finance" value="Finance" />

<hbj:listBoxItem key="IT" value="IT" />

</hbj:dropdownListBox>

</td>

</tr>

By default, the selection in the Dropdownlist box is blank. The user will select one of the 3 departments mentioned above. However, if the user does not select any of the 3 departments, he should be prompted to do so. This should happen before the user clicks on the "Send" button which emails the form. Can anyone please help me? Thanks.

[MartyMcCormick · Accepted solution]

Hi Sri,

You can add an onClientClick to your send button and evaluate the value in the drop down box. Something like the following should work.

function CheckForm() {    
var funcName = htmlb_formid+"_getHtmlbElementId";
func = window[funcName];     
var dropDownValue = eval(func("ORGANIZATION"));    
if (dropDownValue.getValue() == " ") {    	
alert("You must select from the drop down box!");
htmlbevent.cancelSubmit=true;    	
return false;    }   
else   {	return true;	   }
}

then your drop down like such:

<tr>
<td>
<hbj:dropdownListBox
id="ORGANIZATION"
selection=" "
jsObjectNeeded="true">
<hbj:listBoxItem key=" " value=" " />
<hbj:listBoxItem key="Marketing" value="Marketing" />
<hbj:listBoxItem key="Finance" value="Finance" />
<hbj:listBoxItem key="IT" value="IT" /> 
</hbj:dropdownListBox>
</td>
</tr>

To recap, your javaScript function should return false if the user has not selected a value. Also, please remember to add the parameter jsObjectNeeded="true" to your ORGANIZATION dropdown list so you can reference it from javaScript. Your button should have an onClientClick="CheckForm" as well.

Hope this helps.

Marty

FYI: Also discussed here:

https://www.sdn.sap.com/sdn/collaboration.sdn?contenttype=url&content=https%3A//forums.sdn.sap.com/t...

[Former Member · Accepted solution]

Hi Marty, thank you so much. Your code is excellent. I followed all the steps you had outlined and used your code. I was immediately able to get it working. Once again, thanks a lot for the great help.

Sincerely,

Sri