个性化lightswitch登录屏幕(附源码)

 先上个效果图,QQ SL版的登录界面，拿来改了一下，也算是山寨版吧

 

 

主要还是在上一篇 LightSwitch登录界面如何设置背景 的基础上，添加自定义控件（继随page)的方式来实现.重写了登录Page。

 

using System; using System.Linq; using System.IO; using System.IO.IsolatedStorage; using System.Collections.Generic; using Microsoft.LightSwitch; using Microsoft.LightSwitch.Framework.Client; using Microsoft.LightSwitch.Presentation; using Microsoft.LightSwitch.Presentation.Extensions; using System.Windows.Controls; using System.Reflection; using Microsoft.LightSwitch.Runtime.Shell.Internal.Implementation; using LightSwitchApplication.Screens; namespace LightSwitchApplication { public partial class Application { Frame rootFrame = null; partial void Application_Initialize() { Microsoft.LightSwitch.Threading.Dispatchers.Main.BeginInvoke(() => { rootFrame = ((Page)((ContentPresenter)System.Windows.Application.Current.RootVisual).Content).Content as Frame; if (rootFrame != null) rootFrame.Navigated += new System.Windows.Navigation.NavigatedEventHandler(rootFrame_Navigated); }); } void rootFrame_Navigated(object sender, System.Windows.Navigation.NavigationEventArgs e) { if (e.Content is LoginPage) { LoginPage lp = e.Content as LoginPage; MyLoginPage mlp = new MyLoginPage(); //此处才是正真的登录界面， foreach (KeyValuePair<string, string> navigationQueryStringValue in lp.NavigationContext.QueryString) { mlp.NavigationQueryStringValues.Add(navigationQueryStringValue.Key, navigationQueryStringValue.Value); } rootFrame.Content = mlp; rootFrame.Navigated -= rootFrame_Navigated; rootFrame = null; } } ｝ ｝

在MyLoginPage中直接调用ILoginViewModel，ILoginInfo（系统内置登录接口）来实现完整的登录的处理过程。可通过反编译C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\LightSwitch\1.0\Client\Microsoft.LightSwitch.Client.Internal.dll 来查看。以下为一些主要代码处理:

public readonly static DependencyProperty ViewModelProperty; static MyLoginPage() { MyLoginPage.ViewModelProperty = DependencyProperty.Register("ViewModel", typeof(ILoginViewModel), typeof(MyLoginPage), new PropertyMetadata(new PropertyChangedCallback(MyLoginPage.ViewModelPropertyChanged))); } private void loginPage_Loaded(object sender, RoutedEventArgs e) { if (HtmlPage.IsEnabled) { HtmlPage.Plugin.Focus(); } this.userNameTextBox.Focus(); Binding binding = new Binding(); base.SetBinding(MyLoginPage.ViewModelProperty, binding); this.UpdateLoginButtonIsEnabled(); if (IsolatedStorageFile.IsEnabled && IsolatedStorageSettings.ApplicationSettings.Contains(LastLoggedInUserName_StorageKey)) { userNameTextBox.Text = IsolatedStorageSettings.ApplicationSettings[LastLoggedInUserName_StorageKey].ToString(); } } private static void ViewModelPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e) { MyLoginPage loginPage = (MyLoginPage)obj; ILoginViewModel dataContext = (ILoginViewModel)loginPage.DataContext; dataContext.LoginInfo.Navigable = loginPage.Navigable; dataContext.LoginInfo.NavigationQueryStringValues.Clear(); foreach (KeyValuePair<string, string> navigationQueryStringValue in loginPage.NavigationQueryStringValues) { dataContext.LoginInfo.NavigationQueryStringValues.Add(navigationQueryStringValue.Key, navigationQueryStringValue.Value); } dataContext.LoginInfo.PropertyChanged += new PropertyChangedEventHandler(loginPage.LoginInfo_PropertyChanged); dataContext.LoginCommand.CanExecuteChanged += new EventHandler(loginPage.LoginCommand_CanExecuteChanged); }

通过这种替换page的方式来实现登录窗口的个性化。

具体思路就不多解释了，你懂的。

 

 

源代码：http://download.csdn.net/detail/greystar/3751034

整个工程大约为21M左右