我想创建一个自定义控件（或用户控件），它有一个文本块和一个文本框，如下图所示：
textblock 和 Textbox 文本属性都将绑定到数据库字段并能够应用样式等。哪个是最好的方法？
我想出了一个解决方案如下：
用于用户控制的 XAML：
<UserControl x:Class="TestDependency.TextBlox"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
x:Name="abc"
DataContext="{Binding RelativeSource={RelativeSource Self}}" >
<Grid Width="170">
<TextBlock Height="23" HorizontalAlignment="Left" Margin="0,1,0,0"
Text="{Binding Path=Caption}"
VerticalAlignment="Top" Width="52" />
<TextBox Height="25" HorizontalAlignment="Left" Margin="53,-2,0,0"
x:Name="TextBox1"
Text="{Binding Path=Value}"
VerticalAlignment="Top" Width="120" />
</Grid>
用户控件背后的代码：
public partial class TextBlox : UserControl
{
public TextBlox()
{
InitializeComponent();
}
public static DependencyProperty CaptionProperty = DependencyProperty.Register("Caption", typeof(string), typeof(TextBlox));
public static DependencyProperty ValueProperty = DependencyProperty.Register("Value", typeof(string), typeof(TextBlox));
public string Caption
{
get
{
return (string)GetValue(CaptionProperty);
}
set
{
SetValue(CaptionProperty, value);
}
}
public string Value
{
get
{
return (string)GetValue(ValueProperty);
}
set
{
SetValue(ValueProperty, value);
}
}
static void ValueChangedCallBack(DependencyObject property, DependencyPropertyChangedEventArgs args)
{
TextBlox inst = (TextBlox)property;
inst.TextBox1.Text = (string)args.NewValue;
}
}
XAML 用于使用 Usercontrol 的实际表单：
<Grid x:Name="grdmain">
<my:TextBlox Caption="{Binding XValue, Mode=TwoWay}" Value="{Binding WindowName, Mode=TwoWay}"
HorizontalAlignment="Left" Margin="246,197,0,0" x:Name="textBlox1" VerticalAlignment="Top" />
</Grid>
后面的代码：
public partial class MainWindow : Window
{
DataEntities dt = new DataEntities();
CoOrdinate oCord;
public MainWindow()
{
InitializeComponent();
Loaded += new RoutedEventHandler(MainWindow_Loaded);
}
void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
oCord = dt.CoOrdinates.First();
grdmain.DataContext = oCord;
}
}
绑定仍然不起作用。但是代码：
textBlox1.Caption = "test";
工作正常。我哪里错了？