Software development

In this example i am using Prism,unity and MahApps make sure you are also using same otherwise you will not get PrismApplication,BindableBase and MetroWindow .   MainWindow.xaml  <metro:MetroWindow x:Class="WpfApplication.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:WpfApplication"              mc:Ignorable="d"              xmlns:metro="http://metro.mahapps.com/winfx/xaml/controls"              xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"              Title="Welcome To Metro ui with Prism Unity">      <

  MainWindow.xaml  <Window x:Class="WpfDemo.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:WpfDemo"              mc:Ignorable="d" Title="MainWindow">      <StackPanel Orientation="Vertical" HorizontalAlignment="Center">          <TextBlock Text="This is Print Preview demo"/>          <Button Content="Open file dialog" Command="{Binding ClickCommand}"  Margin="10" Width="100"/>        </StackPanel>  </Window>   MainWindow.xaml.cs   public partial class MainWindow : Window  

  MainWindow.xaml  <Window x:Class="Wpf.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:Wpf"              mc:Ignorable="d">      <Window.Resources>          <ControlTemplate  x:Key="TextBoxErrorStyle">              <StackPanel Orientation="Horizontal">                  <AdornedElementPlaceholder x:Name="ErrorHolder" >                      <Border BorderBrush="red" BorderThickness="1" />                  </AdornedElementPlaceholder>                  <TextBlock  Text="{Binding [0].ErrorCont

MainWindow.xaml <Window x:Class="WpfEx.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:WpfEx"        mc:Ignorable="d">   <StackPanel> <DataGrid ItemsSource="{Binding LstStudents}" SelectedItem="{Binding SelectedStudent}" AutoGenerateColumns="False" Height="200" Width="200" HorizontalAlignment="Left">            <DataGrid.Columns>                <DataGridTextColumn Header="Name" Binding="{Binding Name}"/>                <DataGridTextColumn Header="Roll" Binding="{Binding Roll}"/>    

XMLData.xml < Students >   < Student >     < Roll > 1 </ Roll >     < Name > Kumar </ Name >   </ Student >   < Student >     < Roll > 2 </ Roll >     < Name > Harsh </ Name >   </ Student > </ Students > Create a class for xml data public   partial   class   Student     {          public   int  Roll {  get ;  set ; }                          public   string  Name {  get ;  set ; }     } Code To get data from xml file XmlSerializer serializer =  new  XmlSerializer( typeof ( ObservableCollection<Student>) ,  new XmlRootAttribute( "Students" )); //here Student is type and Students is root of xml                        using  (StreamReader reader =  new StreamReader( @"D:\XMLData.xml" ))             {                 //Deserilize the xml file and assign to collection                 LstStudents =(ObservableCollectio

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