Instantiating an Object as a resource in XAML.

The following steps can be followed to instantiate the object as a resource in XAML.

• Imagine we have a class Person as mentioned below.
  Code Snippet

  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5. using System.Windows;
  6. using System.Windows.Controls;
  7. using System.Windows.Data;
  8. using System.Windows.Documents;
  9. using System.Windows.Input;
  10. using System.Windows.Media;
  11. using System.Windows.Media.Imaging;
  12. using System.Windows.Navigation;
  13. using System.Windows.Shapes;
  14.  
  15. using System.ComponentModel;
  16.  
  17. namespace DataBinding_Source_Property
  18. {
  19.     /// <summary>
  20.     /// Interaction logic for MainWindow.xaml
  21.     /// </summary>
  22.     public partial class MainWindow : Window
  23.     {
  24.         public MainWindow()
  25.         {
  26.             InitializeComponent();
  27.         }
  28.     }
  29.  
  30.     public class Person
  31.     {
  32.         private string fullname;
  33.         public string FullName
  34.         {
  35.             get
  36.             {
  37.                 return fullname;
  38.             }
  39.             set
  40.             {
  41.                 fullname = value;
  42.             }
  43.         }
  44.  
  45.     }
  46. }

Steps to be followed are:

• Include the namespace of the class as shown in line5. Notice that it is assigned to xmlns:kishore. Here we are using name resolution kishore with XML namespace. It can be xmlns:local or xmln:src or any other word followed by xmlns:. We have to use the same identifier(kishore or local or src) when we refer (or when want to use) the namespace.

1. <Window x:Class="DataBinding_Source_Property.MainWindow"
2.         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation&quot;
3.         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml&quot;
4.         Title="MainWindow" Height="350" Width="525"
5.         xmlns:kishore="clr-namespace:DataBinding_Source_Property">

 

• To use the classes in the above namespace, we need to create an object of the class we are interested in as shown below. Ex, Person class
  <Window.Resources>
      <kishore:Person x:Key="PersonXAMLDataSource" FullName="Kishore1021"/>
  </Window.Resources>

 

• Once the object of the Person class is instantiated, you can use it as a source during binding operation to bind to some UI element as shown below.

<TextBox Text="{Binding Source={StaticResource PersonXAMLDataSource}, Path=FullName}"></TextBox>
        

 

The complete of the application is as follows.

Code Snippet

1. <Window x:Class="DataBinding_Source_Property.MainWindow"
2.         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation&quot;
3.         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml&quot;
4.         Title="MainWindow" Height="350" Width="525"
5.         xmlns:kishore="clr-namespace:DataBinding_Source_Property">
6.    <Window.Resources>
7.        <kishore:Person x:Key="PersonXAMLDataSource" FullName="Kishore1021"/>
8.    </Window.Resources>
9.     
10.     <Grid>
11.         <Grid.RowDefinitions>
12.             <RowDefinition Height="*"> </RowDefinition>
13.             <RowDefinition Height="*"></RowDefinition>
14.         </Grid.RowDefinitions>
15.         
16.         <TextBox Text="{Binding Source={StaticResource PersonXAMLDataSource}, Path=FullName}"></TextBox>
17.         
18.     </Grid>
19. </Window>

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