Transcript Cf_FormSave
Cf_FormSave Do you wish to Save your changes?? Hello My Name Is…. • Kevin Penny, Age 27 • Advanced Macromedia Certified Developer (4.5 , 5) (soon to add MX? ) • Developing Applications for over 5 years • Primary Database is SQL Server 2K • Favorite Tag: <cfdump> Example: Microsoft Word • Test Document.doc Why the Need for a <CF_FormSave> ? • Needed a usable way to prevent users from submitting forms that had not changed • Needed to be ‘generic’ (for all forms) • Needed to be fast (client side??) • Couldn’t be too complex for other team members to implement on their forms Options Available?? (Analysis) • Triggers in Database – Too cumbersome – Server Trip Required – Have to be coded for each proc/insert • Cold Fusion – Server side (not fast) – Generic?? Not really • Other Options? Solution…. • Client Side Solution using JavaScript • Generic in Nature • Browser insensitive (as much as possible) Advantages • • • • • • • • Save Server Resources Save Network Resources Save Database Processing etc. Works on Multiple Forms On a Page Knows what elements have changed Works for ALL Form elements Little Jscript knowledge required Can prevent user from leaving page when form value has changed (IE Only) • Your boss will think you’re a Genius! Disadvantages • Multiple Forms are treated as a single entity (in this version of the tag) • Browser Version Issues Possibly (test your user browser base) Browser Preview • MSIE • FireBird 0.7 !! (Mozilla Browser) Code Walk Though • FinalCheck() function • DoUnload() function (MSIE Only) • Protect Your Source Code! • (Script Encoder from Microsoft) Links / References • CF_FormSave Tag - http://commark.com/formsave/ • Microsoft Script Encoder • FireBird Browser www.mozilla.org/firebird Questions? Thank You!