Here we look an example of simple data binding in WPF. In this example I use a class for Data Binding. Here we look at the program.
Step1: First we create a Grid in our project:
<Grid x:Name="StuInfo">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" MinWidth="77"></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition></RowDefinition>
<RowDefinition></RowDefinition>
<RowDefinition></RowDefinition>
<RowDefinition></RowDefinition>
<RowDefinition></RowDefinition>
</Grid.RowDefinitions>
</Grid>
Step2: After that we create two TextBlocks and Two TextBoxes in our program and we also create a Button (Next) to see the Next Record according to the program.
<TextBlock Text="First Name" Margin="10"></TextBlock>
<TextBlock Text="Last Name" Margin="10" Grid.Row="1"></TextBlock>
<TextBox Text="{Binding fname}" Margin="10" Grid.Column="1"></TextBox>
<TextBox Text="{Binding lname}" Margin="10" Grid.Column="1" Grid.Row="1"></TextBox>
<Button HorizontalAlignment="Left" Margin="0,12,0,9" Name="button1" Width="75" Grid.Column="1" Grid.Row="2">Next</Button>
Step3: Now we add a Loaded Event handler in the .cs page. This event will be called when the client wants to load the application:
public partial class Window1 : Window
{
public Window1()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(Page_Loaded);
}
void Page_Loaded(object sender, RoutedEventArgs e)
{
}
}
Step4: Now we add a class to our program:
public class Stu
{
public string fname { get; set; }
public string lname { get; set; }
}
Step5: Now we write the following code in the Loded Event Handler:
void Page_Loaded(object sender, RoutedEventArgs e)
{
Stu s = new Stu();
{
s.fname = "Mahak";
s.lname = "Garg";
};
this.StuInfo.DataContext = s;
}
As we mention Binding in TextBox in .xaml page :
<TextBox Text="{Binding fname}" Margin="10" Grid.Column="1"></TextBox>
<TextBox Text="{Binding lname}" Margin="10" Grid.Column="1" Grid.Row="1"></TextBox>
The output will be:
Step6: Now we add another Event Handler, which is for the Next Button:
public Window1()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(Page_Loaded);
this.button1.Click += new RoutedEventHandler(button1_Click);
}
void button1_Click(object sender, RoutedEventArgs e)
{
Stu s = new Stu();
{
s.fname = "Juhi";
s.lname = "Gupta";
};
this.StuInfo.DataContext = s;
}
Here we add another data in our program. When we click on the Next Button, the output will be:
