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• Multi-threading mechanisms to run some lengthy operations from winforms code and communication with

  - by tmarouda

  What do I want to achieve: I want to perform some time consuming operations from my MDI winforms application (C# - .NET). An MDI child form may create the thread with the operation, which may take long time (from 0.1 seconds, to even half hour) to complete. In the meantime I want the UI to respond to user actions, including manipulation of data in some other MDI child form. When the operation completes, the thread should notify the MDI child that the calculations are done, so that the MDI child can perform the post-processing. How can I achieve this: Should I use explicit threading (i.e., create explicit threads), thread pools? Or simply just propose your solution. Should I create foreground or background threads? And how does the thread communicates with the GUI, according the solution you propose? If you know of a working example that handles a similar situation, please make a note.

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• jquery validate plugin: add a custom method

  - by pixeline

  I need some guidance on how to add a validation method to the jquery validate plugin. I've gathered that i need to use the plugin's addMethod() function, but how exactly to have it do what i need... Here i am! My form 's first question is a radio input choice. Each radio input, if selected, shows a sub-question of several checkboxes. What i would like my validation to do is: - make sure one radio input is selected - make sure at least one checkbox pertaining to the radio input is selected. Basically, out of the validate plugin's own logic, i would count the selector's length, and if there isn't any, return the error message. Something like this: var weekSelected = ($('input.seasonSelector:checked input.weekSelector:checked',form).length > 0); if(!weekSelected){ return 'Please select a week inside that season'; } How to turn that into a validate plugin method ?

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• Hot to trigger saved password autofill in browsers?

  - by Aleksander Kmetec

  I have a web application written in pure JavaScript (no pre-generated HTML except for the document which loads all the JS files). This app contains a login form which is created dynamically when the document.ready event event is triggered. I trick the browser into displaying the "Remember password?" dialog by posting the login form into a hidden iframe before logging in using ajax (in Firefox the password appears on the saved password list, so this part obviously works) but saved passwords never get filled in after the login screen is loaded again at a later time. The same thing happens in Firefox and Safari. Is there something I can do or some function I can call to trigger autofill?

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• How to customize a many-to-many inline model in django admin

  - by Jonathan

  I'm using the admin interface to view invoices and products. To make things easy, I've set the products as inline to invoices, so I will see the related products in the invoice's form. As you can see I'm using a many-to-many relationship. In models.py: class Product(models.Model): name = models.TextField() price = models.DecimalField(max_digits=10,decimal_places=2) class Invoice(models.Model): company = models.ForeignKey(Company) customer = models.ForeignKey(Customer) products = models.ManyToManyField(Product) In admin.py: class ProductInline(admin.StackedInline): model = Invoice.products.through class InvoiceAdmin(admin.ModelAdmin): inlines = [FilteredApartmentInline,] admin.site.register(Product, ProductAdmin) The problem is that django presents the products as a table of drop down menus (one per associated product). Each drop down contains all the products listed. So if I have 5000 products and 300 are associated with a certain invoice, django actually loads 300x5000 product names. Also the table is not aesthetic. How can I change it so that it'll just display the product's name in the inline table? Which form should I override, and how?

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• Computational geometry: find where the triangle is after rotation, translation or reflection on a mi

  - by newba

  I have a small contest problem in which is given a set of points, in 2D, that form a triangle. This triangle may be subject to an arbitrary rotation, may be subject to an arbitrary translation (both in the 2D plane) and may be subject to a reflection on a mirror, but its dimensions were kept unchanged. Then, they give me a set of points in the plane, and I have to find 3 points that form my triangle after one or more of those geometric operations. Example: 5 15 8 5 20 10 6 5 17 5 20 20 5 10 5 15 20 15 10 I bet that have to apply some known algorithm, but I don't know which. The most common are: convex hull, sweep plane, triangulation, etc. Can someone give a tip? I don't need the code, only a push, please!

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• django cross-site reverse a url

  - by tutuca

  I have a similar question than django cross-site reverse. But i think I can't apply the same solution. I'm creating an app that lets the users create their own site. After completing the signup form the user should be redirected to his site's new post form. Something along this lines: new_post_url = 'http://%s.domain:9292/manage/new_post %site.domain' logged_user = authenticate(username=user.username, password=user.password) if logged_user is not None: login(request, logged_user) return redirect(new_product_url) Now, I know that "new_post_url" is awful and makes babies cry so I need to reverse it in some way. I thought in using django.core.urlresolvers.reverse to solve this but that only returns urls on my domain, and not in the user's newly created site, so it doesn't works for me. So, do you know a better/smarter way to solve this?

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• ASP.NET MVC partial view does not call my Action

  - by Johannes

  I just started building a small simple Website on ASP.NET MVC, in a page I am using a Partial view, the Partial View represents a simple Form which should be submitted on button click, and If I click the first Time it is submitted with success and does return my partial view with my validation Messages (if the content is invalid) but if I wish to try again the Action isn't called again. Any Idea? View: <form action="<%= Url.Action("ChangePassword", "Account") %>" method="post" id="jform"> <div> <fieldset> <legend>Account Information</legend> <p> <label for="currentPassword">Current password:</label> <%= Html.Password("currentPassword") %> <%= Html.ValidationMessage("currentPassword") %> </p> <p> <label for="newPassword">New password:</label> <%= Html.Password("newPassword") %> <%= Html.ValidationMessage("newPassword") %> </p> <p> <label for="confirmPassword">Confirm new password:</label> <%= Html.Password("confirmPassword") %> <%= Html.ValidationMessage("confirmPassword") %> </p> <p> <input type="submit" value="Change Password" /> </p> </fieldset> </div> </form> <!--<% } %>--> </div> <script> $(function() { $('#jform').submit(function() { $('#jform').ajaxSubmit({ target: '#FmChangePassword' }); return false; }); }); /*$(document).ready(function() { $('#jform').live('submit', function() { $.post($(this).attr('action'), $(this).serialize(), function(data) { $("#jform").replaceWith($(data)); }); return false; }); });*/ </script> Part of the Controller: if (!ValidateChangePassword(currentPassword, newPassword, confirmPassword)) { return PartialView(ViewData); }

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• Open protected web page passing in credentials programmatically

  - by beaudetious

  I have code examples from some of my previous work that help me to post form values to a web page (login credentials) and retrieve the text from that page. Now I want to pass in form values (login credentials again) but actually open that web page in a browser given those credentials. How do I do that? I'm not doing anything nefarious. In our CRM app (home-grown as it is), I want to create a link button that opens our web site's protected products page given the user's credentials (based on the user's login credentials). Normally, I'd copy the user's credentials in our login page which then takes me to the products page. I'm trying to do this now by just clicking a link button. Any suggestions?

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• Django: Overriding the clean() method in forms - question about raising errors

  - by Monika Sulik

  I've been doing things like this in the clean method: if self.cleaned_data['type'].organized_by != self.cleaned_data['organized_by']: raise forms.ValidationError('The type and organization do not match.') if self.cleaned_data['start'] > self.cleaned_data['end']: raise forms.ValidationError('The start date cannot be later than the end date.') But then that means that the form can only raise one of these errors at a time. Is there a way for the form to raise both of these errors? EDIT #1: Any solutions for the above are great, but would love something that would also work in a scenario like: if self.cleaned_data['type'].organized_by != self.cleaned_data['organized_by']: raise forms.ValidationError('The type and organization do not match.') if self.cleaned_data['start'] > self.cleaned_data['end']: raise forms.ValidationError('The start date cannot be later than the end date.') super(FooAddForm, self).clean() Where FooAddForm is a ModelForm and has unique constraints that might also cause errors. If anyone knows of something like that, that would be great...

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• Seam reRender component in partial

  - by meed2000

  Hello, I'm using seam to develop a simple web app. Using a4j commandButton in many places, with the property reRender="componentName" componentName is in most places a a4j outputPanel Which always worked, until I used a template. with include of two different views. reRender applied to the whole view does work, but reRender applied to an inner component does not. Same issue with page rules, all action I had defined are not functioning any more. Is this a problem with Seam, did someone experience this? <a4j:outputPanel id="panel1"> <h:form> <div class="section"> // whatever code </div> <a4j:commandButton id="button1" value="Add" action="#{bean1.action()}" reRender="panel1"/> <h:commandButton id="reset" value="Reset" action="#{bean1.reset}"/> </h:form> </a4j:outputPanel>

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• iPad UI clipped in simulator

  - by raj.tiwari

  My views created for iPad form factor look fine in Interface Builder. However, when I debug my app in iPhone Simulator 3.2 (with Hardware - Device set to iPad), I see the UI clipped and about half size. There is a 2x button at the bottom which lets me zoom in. But this just shows the same clipped UI in double size. This is really weird since I have created the XIB for iPad form factor and it is supposed to fit iPad completely. Any ideas what I might be doing wrong? I am using iPhone SDK 3.2 downloaded on 4/30/2010. Thanks. -Raj

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• WinForms button position - not aligned as it should

  - by Zka

  Adding some gui modifications and I want to have a button which is 10pixels away from the forms left and right border. With this code the right border of the button is around 20-30 pixel outside the form window. Why is that? How can I position my button to be exactly 10pixels away from the form borders ? int margin = 10; meny1 = new Button(); meny1.Top = 50; meny1.Left = margin; meny1.Size = new Size(this.Width - (2*margin), 30);

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• Ajax and Brower Navigation for Back/Forward

  - by David Rodecker

  I am using a ASP.net form with custom onclick mouse events to modify data values. Upon clicking and updating the values, one div section of the form performs a postback. onclick="__doPostBack('ctl01$phCon1$gridReports','sel1')" This is working well, however when the browser BACK option is selected, the browser opens goes through the history of the DIV ajax/onclick actions prior to going back to the prior URL. I suspect that this may be due to the doPostBack being treated as a browsing operation. Is there a means to perform the necessary ASP.net code events to make the page work, but not have the action stored in the browser history?

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• Cookie and Authentication -ASP.net

  - by nettguy

  When i disable cookie at browser level will 'Form authentication' still work ?.If not,What is the alternative that enables the 'From Authentication' ?

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• What does the obscure javascript error b(e.target).zIndex is not a function mean?

  - by stormist

  To give more information I am using the modular form here: http://jqueryui.com/demos/dialog/#modal-form b(e.target).zIndex is not a function [Break on this error] (function(a){a.widget("ui.mouse",{opti...is._unrotate}return this}})})(jQuery); /js/jquery-ui.min.js I also seem to be getting the error "Too much recursion" too much recursion [Break on this error] 3||a.nodeType===8)){if(a.setInterval&&...this.special[o]||{};if(!t){t=e[o]={}; https://my.dev.peer1.com/js/jquery/jquery-1.4.min.js I know its not much to go on but I was hoping someone might have experience with similar issues.

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• Determine if a point is inside a triangle formed by 3 points with given latitude/longitude

  - by Display Name

  I have 3 points ( lat , lon ) that form a triangle.How can i find if a point is inside this triangle?

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• ASP.NET MVC Model Binding

  - by Noel

  If i have a Controller Action that may recieve both HTTP GET and HTTP POST from a number of different sources with each source sending different data e.g. Source1 performs a form POST with two form items Item1 and Item2 Source2 performs a GET where the data is contained in the query string (?ItemX=2&ItemY=3) Is it possible to have a controller action that will cater for all these cases and perform binding automatically e.g. public ActionResult Test(Dictionary data) { // Do work ... return View(); } Is this possible with a custom binder or some other way? Dont want to work directly with HttpContext.Request if possible

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• SharePoint State Machine Workflow walkthrough

  - by d-frag

  I haven't seen an actual SharePoint state machine workflow example on here, but figured this post, How to create a SharePoint State Machine Workflow, is as thorough as it gets. Its a 6-part series. It has a step-by-step approach so even a 9 year old could just follow along and do it. It shows exactly how to use InfoPath to create the initiation form and task form, how to create the state machine workflow (with both C# and VB code), and also how to add workflow history logging and task notification emails. It does not go into modification forms, but does everything else, pretty much. Hope someone finds this useful.

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• c#,visualstudio,gui windows components

  - by ranbir

  how to close a form on click event of button....i had used close function but its not working

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• How to display the image in the web view using html code?

  - by Madan Mohan

  Hi Guys, I am getting the data form Parser, In that I am getting a set of urls. Using these urls can I make image url by appending any data values getting from the parser. http://musicbrainz.org/ws/1/artist/f27ec8db-af05-4f36-916e-3d57f91ecf5e?type=xml&inc=url-rels+artist-rels using these url i get data and set of urls.They are not providing image url or thumbnail. So, Is it possible to get or form an image url from parser (http://musicbrainz.org/ws/1/artist/f27ec8db-af05-4f36-916e-3d57f91ecf5e?type=xml&inc=url-rels+artist-rels) and display in the web view. Please help me from this problem. Thank You, Madan Mohan.

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• Dynamically populate an InfoPath DropownList with managed code

  - by Jared

  I have an InfoPath form with custom C# code, and a Sharepoint list. I have a dropdownlist in the InfoPath form that I want to populate with a certain field from the Sharepoint list (I want the InfoPath dropdownlist to contain this field's value from every item in the Sharepoint list. I can successfully get the list of values I need from Sharepoint in my managed code, but I do not see how I can get these values into the dropdownlist (either bind to the list, or add each item in the list one by one). I thought I could modify the XML of the dropdownlist to insert my items, but the XML only contains the first item in the dropdownlist: <my:RelatedRiskID xmlns:my="http://schemas.microsoft.com/office/infopath/2003/myXSD/2009-07-20T18:12:59">Option 1</my:RelatedRiskID> I feel like this should be possible, but I can't find any resources on how to do it. Thanks in advance for the help. Jared

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• JQuery AJAX is not sending UTF-8 to my server, only in IE.

  - by alex

  I am sending UTF-8, japanese text, to my server. It works in Firefox. My access.log and headers are: /ajax/?q=%E6%BC%A2%E5%AD%97 Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7 Content-Type application/x-www-form-urlencoded; charset=UTF-8 Howeer, in IE8, my access.log says: /ajax/?q=?? For some reason, IE8 is turning my AJAX call into question marks. Why!? I added the scriptCharset and ContentType according to some tutorials, but still no luck. And this is my code: $.ajax({ >---method:"get", >---url:"/ajax/", scriptCharset: "utf-8" , contentType: "application/x-www-form-urlencoded; charset=UTF-8", >---data:"q="+query ... ...

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• How to make multiple segmented inputs in a single input group in Bootstrap

  - by metaculus

  This is how it is supposed to look like on Airbnb home page http://airbnb.com I have tried .input-group-addon and nest in it another <input> like so: <div class="col-lg-6"> <div class="input-group"> <input type="text" class="form-control"> <span class="input-group-addon"> <input type="text" id="nested-input" class="form-control"> </span> <span class="input-group-btn"> <button class="btn btn-default" type="button">Go!</button> </span> </div> </div> </div> And it didn't work. Does Bootstrap support this styling?

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• How to save many to many fields by using an auto complete text box

  - by iHeartDucks

  If I have two models like class Author(models.Model): name = models.CharField(max_length=100) title = models.CharField(max_length=3, choices=TITLE_CHOICES) birth_date = models.DateField(blank=True, null=True) def __unicode__(self): return self.name class Book(models.Model): name = models.CharField(max_length=100) authors = models.ManyToManyField(Author) I can render the book form using a model form like this class BookForm(ModelForm): class Meta: model = Book widgets = { 'authors' : TextInput() } The authors fields is now rendered as a text box and I want to use an auto complete (where I can enter multiple authors) text box to populate the field. I am having a hard time to understand how I can save the authors in view function? I am thinking of using a hidden field to record all the author id's but I am having a hard time figuring out how to save it on the postback.

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• How to do logout functionality in C# window application?

  - by Shailesh Jaiswal

  I am developng Smart device application in C#. It is a window application. In this application I am using Login form to authenticate the users. Only authenticated users can login into the system. I using statc variables in this application so that they can be used at application level. After deploying the application I can see that emulator provides the close button with multiplicaton symbol. In this way I can close my form as well as application. But I want to provde one logout link in my application. Can I provide logout functionality in C# window applicain ? If yes, how to do that ? Please make sure that all the functions of .net framework does not work with .net compact framwork? Can you provide me the code or link through which can resolve the above issue ?

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