小编Ale*_*Dam的帖子

我在wpf中遇到以下问题:

我已经定义了一个包含文本框的用户控件(在命名空间测试中)(以及其他几个控件,只显示了xaml的相关部分):

<UserControl (...)
    DataContext="{Binding RelativeSource={RelativeSource Self}}"
    name="Spinbox">
    (...)
    <StackPanel Orientation="Horizontal">
    <TextBox x:Name="tbText" (...)>
        <TextBox.Text>
            <Binding Path="Value" UpdateSourceTrigger="PropertyChanged">
                <Binding.ValidationRules>
                    <local:ValidateValue MinVal="0" MaxVal="1" />
                </Binding.ValidationRules>
                <Binding.NotifyOnValidationError>true</Binding.NotifyOnValidationError>
            </Binding>
        </TextBox.Text>
    </TextBox>
    (...)

在主窗口文件中,我正在使用此spinbox:

<Test:SpinBox x:Name="tbTestSpinbox" Value="{Binding Path=TheValue}" 
              MinValue="0" MaxValue="150">
    <Test:SpinBox.Behavior>
        <Controls:SpinBoxNormalBehavior />
    </Test:SpinBox.Behavior>
</Test:SpinBox>

在后面的代码中,我定义了TheValue:

private double theValue;

public Window1()
{
  InitializeComponent();
  TheValue = 10;
}


public double TheValue
{
  get { return theValue; }
  set
  {
    theValue = value;
    NotifyPropertyChanged("TheValue");
  }
}

/// <summary>
/// Occurs when a property value changes
/// …