silverlight

问题 I am migrating a n-tier Silverlight application to Windows Azure and I've hit a brick wall. Once I am logged in, the web service cannot know who is authenticated. My cloud project has two roles: Web UI: On Azure, its IP is 111.222.33.44:80 Web Service: On Azure, its IP is 111.222.33.44:8080 Configuration for Web UI: <system.web> <compilation debug="true" targetFramework="4.0" /> <authentication mode="Forms"> <forms name="COOKIENAME" loginUrl="~/Login/login.aspx" timeout="2880" /> <

问题 I have a small problem, probably stupid but I can't figure this out.. Anyways all I'm trying to do is bind my CollectionViewSource.Source to my resulting query in Silverlight 4 with WCF RIA services. This is my XAML : <UserControl.Resources> <CollectionViewSource x:Name="cvsServiceTypes" /> </UserControl.Resources> <Grid> <ComboBox Height="23" HorizontalAlignment="Left" ItemsSource="cvsServiceTypes" DisplayMemberPath="Type" SelectedValuePath="IDServicesType" Margin="154,51,0,0" Name=

问题 I have a WebBrowser element in a page, to which I would like to add a back and forward buttons, and have those buttons disabled when there's nothing to go back to and nothing to go forward to. In Cocoa, the UIWebView has methods to easily check that: canGoBack and canGoForward, and you have goBack and goForward methods available (along with reload etc..) Android has the exact same method names for achieving the same. I see those methods are available in .Net 4 and 3.5 SP1. I've found some

问题 (I asked this question earlier, but had forgotten to mention some constraints. This is for Windows Phone 7.1 (Mango) with Silverlight 4 and C# 4, which lacks System.Threading.Tasks , await and more. I'm asking again in hope for a native solution without 3rd party libs like this.) I'm wrapping a library for my own use. To get a certain property I need to wait for an event, which fires pretty quick. I'm trying to wrap that into a blocking call. Basically, I want to turn void Prepare() { foo =

问题 I'm creating custom control that contain multiple parts. Inside template creation I'm subscribing for different events like so: public override void OnApplyTemplate() { base.OnApplyTemplate(); this.partAreaCode = this.GetTemplateChild(PartAreaCode) as TextBox; this.partExchange = this.GetTemplateChild(PartExchange) as TextBox; this.partSubscriber = this.GetTemplateChild(PartSubscriber) as TextBox; if (this.partAreaCode == null || this.partExchange == null || this.partSubscriber == null) {

问题 Is there a way to get a event from a Panel when a child is added or removed? I'm deriving from a WrapPanel atm. 回答1: There is no public event or protected override that tracks changes Children membership. However a change in the membership of the Children property will ultimately result in a LayoutUpdated event. If you just need to know if the members have been changed then a simple copy of the last count of children would suffice. However if you need to keep track of which members have been

问题 Basically, the console application consumes a web service, and I want to do the same with windows phone application. I know that things work differently with WP7 with respect to web services, and I would like to know if this is possible. The console version uses the namespace System.Web.Services which is not allowed for the wp7. How else could I achieve the same? 回答1: You have to write a WCF service and using that service you can execute all the functionality that you want to do via console

问题 I have 2 parameters defined in SharePoint web part project, meant to be passed into Application_Startup() in a Silverlight application when a user selects from 2 combo boxes (browsable properties). Somehow the Silverlight control does not render when i load it on the SharePoint site. With 1 parameter passed in, the control displays without error. Any ideas? Syntax? Examples? App.xaml.cs: private void Application_Startup(object sender, StartupEventArgs e) { //testing string _setArticles = null

问题 While RIA services seems very good for table operations & queries, I am stuck on one traditional update situation. The UPSERT (Update if exists, else Insert new): First: I want to add a record server-side if the record does not already exist, otherwise if it already exists, I want to update one of its current field values. Second: I do not want to query the database from client-side, to see if the record exists. I just want to call an "UpsertData" method on RIA services and have the add or

问题 I have the following code. It's not finding my resource: string filename = "Resources/Functions.plist"; Uri fileUri = new Uri(filename, UriKind.Relative); StreamResourceInfo sr = Application.GetResourceStream(fileUri); But after the above executes, sr is null. Not good. I do have a file named "Functions.plist" in a directory named "Resources", which is a subdirectory of my project directory. When I right click it in the solution explorer, I see its build action as "Resource" and its copy to