Software development

View <Window x:Class="WpfPrismTutorial.Views.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"         xmlns:local="clr-namespace:WpfPrismTutorial"         mc:Ignorable="d"         prism:ViewModelLocator.AutoWireViewModel="True"         xmlns:prism="http://prismlibrary.com/"         xmlns:valid="clr-namespace:WpfPrismTutorial.Validations"         Title="MainWindow" Height="450" Width="800">     <Grid VerticalAlignment="Center" HorizontalAlignment="Left">               <StackPanel Orientation="Horizontal">             <TextBlock Text="Val

View <Window x:Class="WpfPrismTutorial.Views.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"         xmlns:local="clr-namespace:WpfPrismTutorial"         mc:Ignorable="d"         prism:ViewModelLocator.AutoWireViewModel="True"         xmlns:prism="http://prismlibrary.com/"         xmlns:valid="clr-namespace:WpfPrismTutorial.Validations"         Title="MainWindow" Height="450" Width="800">     <Window.Resources>         <ControlTemplate x:Key=" errorTemplate ">             <StackPanel Orientation="Horizontal">             <AdornedElementPlaceholder x:N

<Window x:Class="WpfPrismTutorial.Views.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"         xmlns:local="clr-namespace:WpfPrismTutorial"         mc:Ignorable="d"         prism:ViewModelLocator.AutoWireViewModel="True"         xmlns:prism="http://prismlibrary.com/"         xmlns:valid="clr-namespace:WpfPrismTutorial.Validations"         Title="MainWindow" Height="450" Width="800">     <Window.Resources>         <ControlTemplate x:Key=" errorTemplate ">             <StackPanel Orientation="Horizontal">             <AdornedElementPlaceholder x:Name

View  <Window x:Class="WpfPrismTutorial.Views.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"         xmlns:local="clr-namespace:WpfPrismTutorial"         mc:Ignorable="d"         prism:ViewModelLocator.AutoWireViewModel="True"         xmlns:prism="http://prismlibrary.com/"         xmlns:valid="clr-namespace:WpfPrismTutorial.Validations"         Title="MainWindow" Height="450" Width="800">     <Window.Resources>         <ControlTemplate x:Key=" errorTemplate ">             <StackPanel Orientation="Horizontal">             <AdornedElementPlaceholder x:

View <Window x:Class="WpfPrismTutorial.Views.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"         xmlns:local="clr-namespace:WpfPrismTutorial"         mc:Ignorable="d"         prism:ViewModelLocator.AutoWireViewModel="True"         xmlns:prism="http://prismlibrary.com/"         xmlns:valid="clr-namespace:WpfPrismTutorial.Validations"         Title="MainWindow" Height="450" Width="800">     <Window.Resources>         <ControlTemplate x:Key=" errorTemplate ">             <StackPanel Orientation="Horizontal">             <AdornedElementPlaceholder x:N