Alright. I look at the docs (http://jakarta.apache.org/struts/userGuide/struts-html.html#select) and I think you are right. It reads:
multiple="true" IS selected - The corresponding property should be an array of any supported data type So -- in your case -- the form-bean property 'permissions' must be an array. The docs also recommend some initializations: WARNING: In order to correctly recognize cases where no selection at all is made, the ActionForm bean associated with this form must include a statement resetting the scalar property to a default value (if multiple is not set), or the array property to zero length (if multiple is set) in the reset() method I hope you have taken similar necessary precautions. If everything above checks out: * Do you have any default selection(s) Are these being displayed correctly? * Are you making any selections *after* the page is displayed? * Can you (temporarily) modify your application logic to simply reload the page after submission? Are your selections being retained? Sri > -----Original Message----- > From: Jordan Thomas [mailto:[EMAIL PROTECTED]] > Sent: Thursday, January 23, 2003 10:06 AM > To: Struts Users Mailing List > Subject: RE: How to handle a multiple select tag > > > Thanks Sri for the help. I have updated the code to reflect > your suggestions. I actually had an ArrayList in there > originally and I changed it to an String[] because I was > receiving the following error. > > javax.servlet.ServletExcepion: BeanUtils.populate > ... > > ----------- Root Cause -------------- > java.lang.IllegalArgumentException: Argument Type Mismatch > > Obviously I am trying to pass the wrong kind of value into > the method but I am not sure how to get around this. Any more > suggestions? > > thanks again for your help > > Jordan > > -----Original Message----- > From: Sri Sankaran [mailto:[EMAIL PROTECTED]] > Sent: Thursday, 23 January 2003 3:27 PM > To: Struts Users Mailing List > Subject: RE: How to handle a multiple select tag > > > Is this setter being called at all? If the 'permissions' > property of your form-bean is some kind of List (as it seems > looking at the setter you have > shown) I don't think this setter will be invoked at all. > Struts will look for a > > void setPermissions(List x) > > method. Likewise when you displayed the page Struts would > have obtained the default selection(s) from calling a > > List getPermissions() > > method. > > I haven't given you a definitive answer but hopefully this > provided a clue. > > Sri > > > -----Original Message----- > > From: Jordan Thomas [mailto:[EMAIL PROTECTED]] > > Sent: Thursday, January 23, 2003 6:51 AM > > To: Struts User List > > Subject: How to handle a multiple select tag > > > > > > Hi, > > > > I have a form that has an <html:select> tag that looks like this: > > > > <html:select property="permissions" multiple="true" size="10" > > tabindex="5"> > > <html:options collection="allPermissions" > property="permissionId" > > labelProperty="permissionName"/> > > </html:select> > > > > This renders out as intended but when I submit my form to an > > ActionForm that has a method that looks like this: > > > > > > public void setPermissions( String[] permissions ) { > > Integer permissionId = null; > > for (int i = 0; i < permissions.length; i++){ > > permissionId = new Integer(permissions[i]); > > this.permissions.add( new PermissionData(permissionId, > > null) ); > > } > > } > > > > This essentially takes the permissions and adds them to a > Collection. > > For some reason though, the permissions String[] is null. Why isn't > > this getting submitted? > > > > thanks for your help > > > > Jordan > > > > > > -- > > To unsubscribe, e-mail: > > <mailto:struts-user-> [EMAIL PROTECTED]> > > For > > additional commands, > > e-mail: <mailto:[EMAIL PROTECTED]> > > > > > > -- > To unsubscribe, e-mail: > <mailto:struts-user-> [EMAIL PROTECTED]> > For > additional commands, > e-mail: <mailto:[EMAIL PROTECTED]> > > > -- > To unsubscribe, e-mail: > <mailto:struts-user-> [EMAIL PROTECTED]> > For > additional commands, > e-mail: <mailto:[EMAIL PROTECTED]> > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
