A good application strives to ensure the integrity of data before saving them to permanent storage in part by screening new and changed with validation rules.Validation in a web application must be performed on the server … Client-side validation is no substitute for server-side validation.This includes a large bunch of sample code and a complete reference guide to all the built-in validation rules in the library.If you skip the message for a validation, the default message is displayed.
If you skip the messages parameter, the plugin will display default, auto-generated messages.Breeze maintains lists of validation rules and applies them automatically at specific moments in the entity life-cycle. Breeze discovers some validation rules and infers others; but you can add your own rules and remove any rule that you don’t like. You can validate any set of entities or entity properties at any time.You decide what the error messages say and how they’re presented.That saves you having to search the array, but however requires you to count the number of entries yourself.You should also also move the updating of the warning label to after the loop, since currently you are unnecessarily updating it in each run through the loop.Also it would be better to show/hide it instead of just clearing the text.var country Set = ; var country Count = 0; var has Duplicates = false; $.each($selection Arr, function (index, country) ); var warning Label = $(section).find('.warning'); if (!If disabled, there is no dropdown arrow, and the selected flag is not clickable.Also we display the selected flag on the right instead because it is just a marker of state. Instead of putting the country dropdown next to the input, append it to the element specified, and it will then be positioned absolutely next to the input using Java Script.I have written some j Query which validates a group of drop downs.It checks the text value selected in all the drop downs (first three characters), and if there is a duplicate, it warns the user. My main function: $('#Main Content_dd Open Brd1').change(function () ); $('#Main Content_dd Open Brd2').change(function () ); $('#Main Content_dd Open Brd3').change(function () ); $('#Main Content_dd Open Brd4').change(function () ); $('#Main Content_dd Open Brd5').change(function () ); One impracticable thing you are doing, is reading/parsing the country abbreviation from the display label of the option.