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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：

在此处输入图像描述

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？

4

1 回答 1

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创建一个带有文本块和文本框的用户控件，并将值绑定到该控件。

<YourUserControl TextBlockText="{Binding TextBlockText}" TextBoxText="{Binding TextBoxText, Mode=TwoWay}"/>
于 2012-08-27T11:09:07.900 回答