XamlParseException datagrid

Question

我得到XamlParseException，我不知道如何解决它。我希望能够控制输入。

XAML

<DataGridTemplateColumn Header="Naam" CellTemplate="{StaticResource ContactNameTemplate}" CellEditingTemplate="{StaticResource EditingContactNameTemplate}"/>

字典

<DataTemplate x:Key="ContactNameTemplate" >
    <TextBox HorizontalAlignment="Center" Validation.ErrorTemplate="{StaticResource validationTemplate}" Style="{StaticResource textBoxInError}">
        <TextBox.Text>
            <Binding Path="Name" Source="{Binding Name}" UpdateSourceTrigger="PropertyChanged">
                <Binding.ValidationRules>
                    <c:Text Min="21" Max="130"/>
                </Binding.ValidationRules>
            </Binding>
        </TextBox.Text>
    </TextBox>
</DataTemplate>
<DataTemplate x:Key="EditingContactNameTemplate">
    <TextBox HorizontalAlignment="Center" Validation.ErrorTemplate="{StaticResource validationTemplate}" Style="{StaticResource textBoxInError}">
        <TextBox.Text>
            <Binding Path="Name" Source="{Binding Name}" UpdateSourceTrigger="PropertyChanged">
                <Binding.ValidationRules>
                    <c:Text Min="21" Max="130"/>
                </Binding.ValidationRules>
            </Binding>
        </TextBox.Text>
    </TextBox>
</DataTemplate>

修改

我的错误

PresentationFramework.dll中出现'System.Windows.Markup.XamlParseException'类型的第一次机会异常

附加信息：无法在Binding类型的Source属性中设置Binding。绑定只能在DependencyObject的DependencyProperty中设置。

<ControlTemplate x:Key="validationTemplate">
    <DockPanel>
        <TextBlock Foreground="Red" FontSize="20">!</TextBlock>
        <AdornedElementPlaceholder/>
    </DockPanel>
</ControlTemplate>
<Style x:Key="textBoxInError" TargetType="{x:Type TextBox}">
    <Style.Triggers>
        <Trigger Property="Validation.HasError" Value="true">
            <Setter Property="ToolTip" Value="{Binding RelativeSource={x:Static RelativeSource.Self},Path=(Validation.Errors)[0].ErrorContent}"/>
        </Trigger>
    </Style.Triggers>
</Style>

    public class Text : ValidationRule
{
    private int _min;
    private int _max;

    public Text()
    {
    }

    public int Min
    {
        get { return _min; }
        set { _min = value; }
    }

    public int Max
    {
        get { return _max; }
        set { _max = value; }
    }

    public override ValidationResult Validate(object value, System.Globalization.CultureInfo cultureInfo)
    {
        ValidationResult result;
        string text;
        if (((string)value).Length < Min || ((string)value).Length > Max)
        {
            text = value.ToString();
            result = new ValidationResult(true, null);
        }
        else
        {
            text = "";
            result = new ValidationResult(false, "De naam moet tss " + Min + " en " + Max);
        }
        return result;
    }
}