/* Name: ViewStateMagic, Version 1.1 ! (17-APR-2003) Home: http://www16.brinkster.com/rajspace/ViewStateMagic.html Authors: Version 1.1 - Kumar Gaurav Khanna Version 1.0 - Rajiv. R Email: gaurav@wintoolzone.com MailMe@Rajspace.Org Purpose: ASP.NET's cool feature of ViewState, now available to any server-side programming -ASP, JSP, etc ... What's new in 1.1: ------------------ View state management for multiple forms in a page. Rajiv R speaks: 1.0 released on 15-APR-2003 ... 1.1 on 17-APR-2003 ... :) All credits of 1.1 to Gaurav. Visit him @ WinToolZone.Com ! Gaurav speaks: Well, this piece is based on core written by Raj. I was following the thread at B.NET, http://groups.msn.com/bdotnet/, and found it quite interesting. With my projects not taking much of my time, I downloaded it and checked it out. Interesting code Raj, good work :) Going through the limitations, I thought I would first implement support for multiple form's view state management. Note that in ASP.NET (which introduces the concept of view state), everything is contained on a single form, and hence the concept of multiple forms doesn't come into play. But environments like PERL,ASP, JSP, etc do have multiple form concept. Hence, I put in an hour and came up with v1.01 that now supports multiple form view state management. You can download it, temporarily, from http://www.wintoolzone.com/downloads/viewstatemagic101.zip. But the permanent link will be at Raj's web, @ http://www16.brinkster.com/rajspace/ViewStateMagic.html. Follow it up there for updates. ******************************* How to use ViewStateMagic, Version 1.1? ******************************* 1. Include viewstatemagic.js file in your source file. 2. OnLoad of , call loadGlobalViewState() 3. OnSubmit of each
, call setGlobalViewState(this) 4. If you intend to retain the values of form element, set enableviewstate=true in the element as a attribute & value. 5. Within the have a hidden variable named "__viewstate". 6. After creating all of your user , create one more with a "__viewstate" hidden member and set the value of this element across requests from the Request object, as shown below: ">
************** Knock, Knock ! ************** Please let your thoughts flow to me! Be whatever, I will love to hear from you. In case, you need any variation to the magic, you are welcome to consult me. If you encounter any bugs or errors, I will be thankful to you. MailMe@Rajspace.Org *************************** Known facts and Limitations *************************** 1. Tried & Tested on IE5.0. 2. Performs magic on TextBox, RadioButton, CheckBox, TextArea, Single-Select! Does not on multi-select listboxes. ******* CAUTION: When the VALUE of any
element is == or ][ or KGK_19790209_KGK this script in this state will fail. Edit the SPLIT_CODE, START_CODE & END_CODE variable values suitably if you are expecting == or ][ in your element values. ******* */ var SPLIT_CODE="=="; var START_CODE="["; var END_CODE="]"; // KGK-17/04/2003 // This seperation code will be used as a seperator when view states from multiple forms will be // stored together as a single entity. var VIEW_SEP="KGK_19790209_KGK"; // KGK-17/04/2003 // Each user form calls this function during its "OnSubmit", passing a pointer to the form // as an argument. This pointer is required so that we can store the view state of all the // forms in the pointed forms "__viewstate" member. function saveGlobalViewState(objForm) { // init var strGlobalViewState = ""; // enumerate all the forms, except the last one for(formNumber=0;formNumber0 && object.type!="select-one") { //length is valid for single-select and radio. To avoid single-select for getting to this block, the 2nd check is made. //Block for radio buttons-START for(j=0;j