options

问题 I'm writing a Visual Studio extension. I have a C# class representing an options page. An option is represented by a public property, like this: public class OptionsPageGeneral : DialogPage { [Range(1, 100)] [Category("Misc")] [DisplayName("Integer option")] public string IntOption { get; set; } ... } I'm trying to use the RangeAttribute validation attribute to restrict user input. However, for the given code, user still can input any value, not only from [1; 100] range. I've seen lots

问题 How to show/hide a checkbox based on select option value? I want to show a checkbox based on a single value in select option and want to hide it when other values are selected. I am trying for jquery solution. $('#abcselect').change(function(){$('#unknownlicense').toggle($(this).val() == 'first')}); 回答1: $(document).ready(function() { $("select").change(function() { $("#foo").toggle($(this).val() == "something")); }).change(); // in case the first option is selected on page load }); Try it

问题 In the following code, a product (represented with productVM ) has an observable property ( productName ) containing its name in two languages (english and french). Once a cartItem is added, and a product is selected, I want its displayed name to be updated when the button "change language" is clicked (e.g., if "Door" is selected, and "change language" is then clicked, the displayed name should be the french version (which is simply the english word plus a french-ish suffix "eux")). But it

问题 First see my code. <select multiple name='assign_to[]'> <? $result_10 = mysql_query("select * from login_users") or die(mysql_error()); while($row_10 = mysql_fetch_object($result_10)) { echo "<option value=".$row_10->user_id.">".$row_10->username."</option>"; } ?> </select> I am able to get value when page is submitted no issue with this but my problem is : When page is submitted I am redirecting to the same page then I want that options which are selected before submitting the form will seen

问题 I've set up a REST API on a django and requesting things via JavaScript AJAX with CORS enabled. It works fine until I try to use a PUT request. Because django cannot handle PUT, I am using django-piston's coerce_put_post method. The problem is, that the PUT request is handled successfully but the OPTIONS request fails with 405 METHOD NOT ALLOWED . This is the Network log of the failing request. Request URL : http://localhost Request Method : OPTIONS Status Code : 405 METHOD NOT ALLOWED

问题 I have a function which takes optional parameters. However, these are not Option[?] but can be either set or null: private def div(id: String = null, cssClass: String = null): JQuery = { val optId = Option(id) val optCssClass = Option(cssClass) ... // deal with optId and optCssClass using the Scala-way™ ... } I am using "null", which I know should be avoided like the plague. However, it allows me to write code like this: div(id = "someId") // no cssClass div(id = "otherId", cssClass =

问题 I am pretty new to Android. I want to implement predefined filters for a ListView. My ListView will contain numbers and there would be a Filter icon which on click should show options like "Show odd", "Show even" and "Show all". My question is how to display a popup dialog on click of the Filter icon? If that is achieved using a simple popup dialog, then how do I filter the ListView with the option selected? I tried searching Android forums but they speak mainly about text filters. Pointers

问题 Anyone know what the problem with this code is? let rec Foo(a,b) = match a () with | None -> Some(b) | Some(c) -> Some(Foo(c,b)) Here's the compiler error: "Type mismatch. Expecting a 'a but given a 'a option The resulting type would be infinite when unifying ''a' and ''a option'" 回答1: Let's try to reproduce how the compiler tries to infer types here. let rec Foo(a,b) = match a () with | None -> Some(b) | Some(c) -> Some(Foo(c,b)) "Ok, so I see a () . a must be a function from unit to some

问题 Background I have this form that uses javascript exclusively to search through ~5k entries (suppliers) and populate a select dropdown from them (factories, ~10k entries). Right now, it's a javascript-required form. I'd like to make it so that javascript errors no longer render the form unusable, but the number of entries and the sequential nature of the entries leave me without a idiomatic way to provide just a basic html version. The Issues Sequential/hierarchical dropdowns An example

问题 In the tool I downloaded from: http://alloy.mit.edu/alloy/hola/ the only options of solvers that appear are SAT4J and PLingeling. Why do the other options not also appear? I am using Windows and executing the tool by double clicking the file hola-0.2.jar... The same error occurs with the Alloy Tool downloaded from: http://alloy.mit.edu/alloy/download.html However, when i run it in windows 7, solver options such as miniSAT, miniSAT with Unsat Core, ZChaff appear! The solver options available