mvvm-light

问题 The following code successfully creates two buttons dynamically, what I can not figure out is how to make the buttons open a different files when clicked. What am I missing? XAML: <ItemsControl ItemsSource="{Binding DataButtons}"> <ItemsControl.ItemTemplate> <DataTemplate> <Button Content="{Binding ButtonName}" Command="{Binding ButtonCommand}" CommandParameter="{Binding FilePath}"/> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> ViewModel: namespace DynamicControlsMvvmLight

问题 I'm currently working on a Xamarin.forms project using .NET Standard as code sharing strategy. I try to use the MVVM pattern by using the MvvmLightLibsStd10 library. I already successfully setup the MVVM structure by using this tutorial: https://www.linkedin.com/pulse/build-xamarinforms-net-standard-mvvm-light-app-rafael-carvalho I can't use Navigation.PushAsync(new Page()); because it only works in code behind and not in the ViewModel. I already tried to Pass Navigation trough the VM

问题 Thanks for visiting. I am having trouble refreshing a Telerik grid when the Refresh button is clicked. In other words, if the user changes the data and decides not to save it, clicking the refresh button should reload the grid with the original values. Here is my XAML in the View for the Refresh: <Button Content="Refresh" Grid.Row="1" Margin="92,5,0,11" Command="{x:Bind ViewModel.RefreshDataCommand}"/> Here is my XAML in the View for the Grid: <tg:RadDataGrid ColumnDataOperationsMode="Flyout"

问题 I want to highlight the foreground or background color of the dates based on current date. How can I do it in my ViewModel? What are the codes I can use to highlight the date? Here are my codes for the whole project: xaml: <Grid Margin="10,102,10,298"> <GridView ItemsSource="{Binding Calendar.DateCollection}"> <GridView.ItemTemplate> <DataTemplate> <Grid x:Name="dateGrid" Background="AntiqueWhite" Width="50" Height="30"> <TextBlock x:Name="txtDate" Text="{Binding}" Foreground="Black"

问题 I'll make a WPF application whit one window and by changing the content of the Frame I'll navigate troth my application. For this I'm using MVVM light. But on App.xaml I've got this error in the error list of Visual Studio. Object reference not set to an instance of an object. Here is the code where the error happens: <Application x:Class="Project.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr

问题 Currently in my application, I have a RelayCommand which calls an action which starts a Timer . I have a separate command which the calls the Dispose() method to get rid of/release the timer. This all sits in the ViewModel counterpart of the project. Using the MVVM pattern, how would I dispose of this Timer upon closing the window, as well as carrying out the regular/default operation of closing the window? I am also using the MVVM-Light toolkit, if this is of any help. An example of my

问题 I have build a WCF template service which talks (original: discuss) with my EF connected to my database. Then I have my main aplication which a simple WPF implementing MVVM light. My main application is referecing my WCF service and has created the config file automatically. In my ViewModel constructor I am calling my WCF service in order to get the collecton of data which will be bound to the view. Toruble is that doing that, the Datacontext which is initialised to the ViewModelLocator

问题 I'd like to build my business application using the MVVM pattern. I choose MVVM-Light because it fits to my needs. In every example I've seen about MVVM-Light, no-one use the WCF RIA. The classic MIX10 example uses a Service in the same project while WCF RIA create a service in the Web project. The question is: it looks very hard to build an interface of the whole DomainContex the WCF Ria creates (it is surely hard for me!) but without an interface how could I build a fake DomainContex to be

问题 As a new in WPF and MVVM light, I am struggling to apply the MVVM pattern in a TabControl. I will give you an example of what I am trying to achieve. TabOne xaml and its view model <UserControl x:Class="TestTabControl.TabOne" xmlns:local="clr-namespace:TestTabControl" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="300"> <Grid> <TextBlock Text="tab one ..." FontWeight="Bold" FontSize="14" HorizontalAlignment="Center" VerticalAlignment="Center" /> </Grid> </UserControl> //TabOne ViewModel

问题 I'm using MVVMLight to create a questionnaire and running into memory issues when rendering the InkCanvas controls. Here's a watered down example of what I am working with: QuestionVm public Question Question { get; set; } public HandwritingControl HandwritingControl { get; set; } QuestionnaireVm public List<QuestionVm> currentQuestions; public List<QuestionVm> CurrentQuestions { get { return currentQuestions; } set { currentQuestions = value; RaisePropertyChanged(); } } Questionnaire.xaml.cs