Forum:

Struts

Drop down list value

Ranch Hand

Posts: 219

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Hi all.
I am doing an application using struts.
In my jsp page i have 2 drop down list.
The value for the first drop down list is obtained by running a query and i am able to display the values in the first drop down list.

The value for the second drop down list depends on the value of the first.
So after selecting the first drop down list i again go to my action class and run the query for getting the second drop down list value by passing the selecting value of the first drop down list.

Everything is fine.Except when i select the first drop down list value and come back again to my same jsp page after running the query for second drop down list the value i have selected for the fist drop down list is changed .My problem is how do i maintain the value of the first drop down after returning to the same jsp .

Any hint or clue or any form of help is really appreciated.
Please let me know if i am not clear with my question.

Thanks

Merrill Higginson

Ranch Hand

Posts: 4864

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Did you use the <html:select> and <html

ptions> tags for the first select box? Can you verify that the ActionForm property contained the value you expected when the form was submitted?

Merrill
Consultant, Sima Solutions

meena latha

Ranch Hand

Posts: 219

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Thanks for the reply.
I am using JSTL tags.I am putting a part of code below.

When onchange happens it goes to my action class.
In my action class i am able to get the value .
Using that only i am running my second query to get the value for second drop down list.I am able to get the value for my second drop down list also.Problem is that when i come back to the jsp the value is initally selected is not appearing in my first drop down list.
It is showing some other value.
Any hint or clue will be really useful.

Thanks

Timothy Sam

Ranch Hand

Posts: 751

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Hmmm... You won't be able to capture the value of your form fields to your form bean without using the struts tags as Merill mentioned... Use the <html:select> and <html

ptions> tags...

SCJP 1.5

Merrill Higginson

Ranch Hand

Posts: 4864

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Change

<c:when test="${iteration.count-1 == pubForm.selectedID}">

to

<c:when test="${pub.pubID == pubForm.selectedID}">

You could also write this as:

<html:select property="selectedId" onchange="submitForm2('display')">
<html:optionsCollection property="pubList" value="pubID" label="pubName" />
</html:select>

The nice thing about the html:select tag is that it automatically selects the option matching the value of selectedId.
[ January 12, 2006: Message edited by: Merrill Higginson ]

Merrill
Consultant, Sima Solutions

meena latha

Ranch Hand

Posts: 219

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Thanks to everybody.
A million thanks to Merrill.
Is there any way that i can retrive the value and text of the selected option.In my case value is the ID and text is the Name i need both.

Thanks
[ January 12, 2006: Message edited by: ramya jai ]

meena latha

Ranch Hand

Posts: 219

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Thanks to all.
I did it using javascript function.

Wink, wink, nudge, nudge, say no more, it's a tiny ad:

We need your help - Coderanch server fundraiser

https://coderanch.com/wiki/782867/Coderanch-server-fundraiser