jQuery Forum

Hi I used jquery validation engine for form controls validation purpose. It works well at all controls. But It is partially worked on listbox control. I used 2 listboxes in my form. Because I

provide user to choose more than one options and remove users options. For this purpose I used 2 lisboxes. User can select options in the first listbox and pass to second listbox. Actally

listbox validation is needed on second listbox. Second listbox options  are needed to submit. I also provide max list options to 5. It works well. I also added required field validation to

second listbox. But It does not work well. every time I needed to select min one option when I submit options. If not any option select in the second listbox then the required field validation

error is fired. I didnt understand why the required field is fired when the data is occured in the second listbox. I am new to jquery.

My code is below.

aspx code:

<asp:ListBox ID="lstStudentSelectedSubjects" runat="server" Width="180px"
                                               Height="120px" SelectionMode="Multiple" class="validate[required,maxList[5]]" ></asp:ListBox>     


jquery validation engine code:

 case "maxList":
                        errorMsg = methods._maxList(field, rules, i, options);
                        field = $($("select[name='" + fieldName + "']"));
                        break;



 _maxList: function (field, rules, i, options) {
            var listItems = rules[i + 1];
            var groupname = field.attr("name");
            var groupSize = $("select[name='" + groupname + "'] option").size();
            //alert("HI" + groupSize);
            if (groupSize > listItems) {

              
                var rule = options.allrules.maxList;
                return rule.alertText + listItems + rule.alertText2;
            }
        },



                     "maxList": {
                      "regex": "none",
                      "alertText": "* Select max ",
                      "alertText2": " subjects only"
                    },