unobtrusive-javascript

Let's say I have this model: public class Person { public bool IsApproved { get; set; } } And whis this codes, I am trying to render input with check type: @Html.CheckBoxFor(x => x.IsApproved) @Html.CheckBox("IsApproved") But, the results are different: // CheckBoxFor result <input data-val="true" data-val-required="The IsApproved field is required." id="IsApproved" name="IsApproved" type="checkbox" value="true"> <input name="IsApproved" type="hidden" value="false"> // CheckBox result <input id="IsApproved" name="IsApproved" type="checkbox" value="true"> <input name="IsApproved" type="hidden"

Given an Array Literal inside a JavaScript Object, accessing its own object's properties does not seem to work: var closure = { myPic : document.getElementById('pic1'), picArray: [this.myPic] } alert(closure.picArray[0]); // alerts [undefined] Whereas declaring an Array Item by accessing an other JavaScript Object seem to work ​var closure1 = { ​ ​ myPic : document.getElementById('pic1') ​} ​ ​var closure2 = { ​ ​ picArray: [closure1.myPic] ​} ​ ​alert(closure2.picArray[0]); // alerts [object HTMLDivElement] Example: http://jsfiddle.net/5pmDG/ CMS The this value will not work like that, it

If i have [Required(AllowEmptyStrings = true)] declaration in my view model the validation is always triggered on empty inputs. I found the article which explains why it happens. Do you know if there is a fix available? If not, how do you handle it? Jon Galloway Note: I'm assuming you have AllowEmptyStrings = true because you're also using your view model outside of a web scenario; otherwise it doesn't seem like there's much of a point to having a Required attribute that allows empty strings in a web scenario. There are three steps to handle this: Create a custom attribute adapter which adds

Working with the JavaScript one of the confusing thing is when using this var x = { ele : 'test', init : function(){ alert(this.ele); } } However when dealing with multiple object and especially events context of this changes and becomes confusing to keep track/understand. So if anybody has better inputs/guidelines/thoughts/better practices, please share. Also I would like know if using this gives any (performance) advantage or what? AnthonyWJones It's not about performance, it's about accessing a property of a specific instance of an object:- x.init() Would not display 'test' if you hadn't

Is there a way to find a clients location on a website using just jQuery. For example, if a user comes to my site, how could I find out what their approximate location is just using jQuery. For example, if a user came from San Francisco CA it would have some type identifier to let me know the user came from San Francisco CA. I wouldn't really need their exact location just the county or general area of origin. edit: How is the information on http://flourishworks-webutils.appspot.com/req generated? Thanks To get the client IP address & country name in jQuery: $.getJSON("http://freegeoip.net

I would like to know if the module pattern or Constructor/protoType pattern is more applicable to my work. Basically I am using unobtrusive javascript -- the HTML document has a reference to the .js file. My understanding of the module pattern: call an INIT method (which is basically a public method i can create and return using the module pattern) In the INIT method, assign all click events etc. This sounds like the perfect pattern for my situation, as I don't need to create Objects and inheritance hierarchies etc. My understanding of the Constructor/Prototype pattern: for creating objects

I'm trying to implement the code as mentioned in this post . In other words I'm trying to implement unobtrusive validation on a terms and conditions checkbox. If the user hasn't selected the checkbox, then the input should be marked as invalid. This is the server side Validator code, I've added: /// <summary> /// Validation attribute that demands that a boolean value must be true. /// </summary> [AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = false)] public class MustBeTrueAttribute : ValidationAttribute { public override bool IsValid(object value) { return value