If you are binding - why not just do it in XAML instead? Looking at your code it's kind of pointless - you might as well just go
Footer_text.Text = "Setting";
You should ideally do it in XAML or at least provide something for it to bind to
<TextBlock Text="{Binding SomeProperty}" />
I'm not sure why you would bind a 'string' on it's own to anything...do you have an object which you need to bind to the text property?
Also using
Binding("")
What does that do? A blank path? Not sure what the binding target would be there... have you tried
Binding()
instead?
Edit:
Also the reason why your binding is not updating the control, is probably because you haven't bound to an object which implements INotifyPropertyChanged or a similar interface. The controls need to know when values have changed, so I'd imagine that binding to 'string' isn't giving the TextBlock the proper notification when it changes
Edit 2:
Here is a quick example of binding working:
My window class Window.cs:
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid>
<StackPanel>
<TextBlock x:Name="txtName" Text="{Binding Name}"></TextBlock>
<Button Click="Button_Click">Click me 1</Button>
<Button Click="Button_Click_1">Click me 2</Button>
</StackPanel>
</Grid>
</Window>
The code behind in Window.xaml.cs
public partial class MainWindow : Window
{
SomeObjectClass obj = new SomeObjectClass();
public MainWindow()
{
InitializeComponent();
txtName.DataContext = obj;
}
private void Button_Click(object sender, RoutedEventArgs e)
{
obj.Name = "Hello World";
}
private void Button_Click_1(object sender, RoutedEventArgs e)
{
obj.Name = "Goobye World";
}
}
The object to bind to (with INotifyPropertyChanged)
class SomeObjectClass : INotifyPropertyChanged
{
private string _name = "hello";
public string Name
{
get
{
return _name;
}
set
{
_name = value;
OnPropertyChanged("Name");
}
}
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged(string PropertyName)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(PropertyName));
}
}
Clicking the buttons changes SomeObject.Name, but it updates the textbox.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…