Data Binding of user control property

Hello,

I have built a user control that consists of label and textBox.
I have added a dependancy property Text that is influates the text of
the textBox.

<UserControl x:Class="UserControl.InputField"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid Name="grid1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>

<Label Margin="2,11,1,17" Name="label1">Label</Label>
<TextBox Name="textBox1" Margin="6,13.5,13.5,13.5" Grid.Column="1"
Height="20" VerticalAlignment="Top"
HorizontalAlignment="Left"></TextBox>
</Grid>
</UserControl>

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace UserControl
{
/// <summary>
/// Interaction logic for InputField.xaml
/// </summary>

public partial class InputField :
System.Windows.Controls.UserControl
{
public InputField()
{
InitializeComponent();

SetupTextBindings();

UpdateTextBoxText();
}

private void SetupTextBindings()
{
Binding binding = new Binding("Text");
binding.Source = this;
//binding.Source = this.textBox1.Text;
binding.Mode = BindingMode.TwoWay;

this.SetBinding(TextProperty, binding);
}

/////////////////////// Text Box Text
/////////////////////////////////////////
public static readonly DependencyProperty TextProperty =
DependencyProperty.Register(
"Text", typeof(string), typeof(InputField),
new FrameworkPropertyMetadata("", new
PropertyChangedCallback(OnTextChanged)));

public string Text
{
get { return (string)GetValue(TextProperty); }
set { SetValue(TextProperty, value); }
}

private static void OnTextChanged(DependencyObject obj,
DependencyPropertyChangedEventArgs args)
{
InputField control = (InputField)obj;
control.UpdateTextBoxText();
}

private void UpdateTextBoxText()
{
textBox1.Text = Text;
}
}
}

In another window I put my control and try to bind the text property to
some field of an class instance.

<Window x:Class="UserControl.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="UserControl" Height="300" Width="300"
xmlns:uc="clr-namespace:UserControl"
>
<StackPanel Name="grid1">
<uc:InputField Text="{Binding Path=Name ,Mode=TwoWay}"/>
</StackPanel>
</Window>

The problem that I have is that the binding is one way.
If i change the field :Name the text of the textBox chabges, but if I
enter a new text in the TextBox it doesn't change the data in the
field.

(I have a class Person that have one property:Name, I binded grid1 to
an instance of person)

Can anyine please help me.

Thank you.

public static readonly DependencyProperty TextProperty =
DependencyProperty.Register(
"Text", typeof(string), typeof(InputField),
new FrameworkPropertyMetadata("",
FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
new PropertyChangedCallback(OnTextChanged)));



"luba" wrote:

> Hello,
>
> I have built a user control that consists of label and textBox.
> I have added a dependancy property Text that is influates the text of
> the textBox.
>
> <UserControl x:Class="UserControl.InputField"
> xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
> xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
> <Grid Name="grid1">
> <Grid.ColumnDefinitions>
> <ColumnDefinition Width="Auto"/>
> <ColumnDefinition Width="*"/>
> </Grid.ColumnDefinitions>
>
> <Label Margin="2,11,1,17" Name="label1">Label</Label>
> <TextBox Name="textBox1" Margin="6,13.5,13.5,13.5" Grid.Column="1"
> Height="20" VerticalAlignment="Top"
> HorizontalAlignment="Left"></TextBox>
> </Grid>
> </UserControl>
>
> using System;
> using System.Collections.Generic;
> using System.Text;
> using System.Windows;
> using System.Windows.Controls;
> using System.Windows.Data;
> using System.Windows.Documents;
> using System.Windows.Input;
> using System.Windows.Media;
> using System.Windows.Media.Imaging;
> using System.Windows.Navigation;
> using System.Windows.Shapes;
>
> namespace UserControl
> {
> /// <summary>
> /// Interaction logic for InputField.xaml
> /// </summary>
>
> public partial class InputField :
> System.Windows.Controls.UserControl
> {
> public InputField()
> {
> InitializeComponent();
>
> SetupTextBindings();
>
> UpdateTextBoxText();
> }
>
> private void SetupTextBindings()
> {
> Binding binding = new Binding("Text");
> binding.Source = this;
> //binding.Source = this.textBox1.Text;
> binding.Mode = BindingMode.TwoWay;
>
> this.SetBinding(TextProperty, binding);
> }
>
> /////////////////////// Text Box Text
> /////////////////////////////////////////
> public static readonly DependencyProperty TextProperty =
> DependencyProperty.Register(
> "Text", typeof(string), typeof(InputField),
> new FrameworkPropertyMetadata("", new
> PropertyChangedCallback(OnTextChanged)));
>
> public string Text
> {
> get { return (string)GetValue(TextProperty); }
> set { SetValue(TextProperty, value); }
> }
>
> private static void OnTextChanged(DependencyObject obj,
> DependencyPropertyChangedEventArgs args)
> {
> InputField control = (InputField)obj;
> control.UpdateTextBoxText();
> }
>
> private void UpdateTextBoxText()
> {
> textBox1.Text = Text;
> }
> }
> }
>
> In another window I put my control and try to bind the text property to
> some field of an class instance.
>
> <Window x:Class="UserControl.Window1"
> xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
> xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
> Title="UserControl" Height="300" Width="300"
> xmlns:uc="clr-namespace:UserControl"
> >
> <StackPanel Name="grid1">
> <uc:InputField Text="{Binding Path=Name ,Mode=TwoWay}"/>
> </StackPanel>
> </Window>
>
> The problem that I have is that the binding is one way.
> If i change the field :Name the text of the textBox chabges, but if I
> enter a new text in the TextBox it doesn't change the data in the
> field.
>
> (I have a class Person that have one property:Name, I binded grid1 to
> an instance of person)
>
> Can anyine please help me.
>
> Thank you.
>
>