Let us have this property:

        public TCommand Read
        {
            get
            {
                return new TCommand
                (
                    (obj) =>
                    {
                        
                    }
                );
            }
        }

How to launch this on start the program without deviating from the MVVM pattern?

P.S. Sorry for my english

CodePudding user response：

You can refer to answer and do something like

<Window x:Class="YourApplication.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        Title="MainWindow"
        mc:Ignorable="d"
        xmlns:local="clr-namespace:YourApplication"
        xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
        Height="450" Width="800">
    <Window.DataContext>
        <local:MainViewModel />
    </Window.DataContext>
    <i:Interaction.Triggers>
        <i:EventTrigger EventName="Loaded">
            <i:InvokeCommandAction Command="{Binding Read}"/>
        </i:EventTrigger>
    </i:Interaction.Triggers>
</Window>

If you have a multiple windows in your application, you can hook into Application.Startup event. Let me know and I'll update my answer.