WPF,entlib:propertyComparisonValidator不会更新比较值的UI

发布于 2024-10-07 04:15:46 字数 2240 浏览 9 评论 0原文

我对Entlib 5.0的属性库存效果有问题。 我设置了一个带有分钟和最大字段的简单表格。 验证是:当min> = max时,两个属性都是无效的。

    [RangeValidator(10, RangeBoundaryType.Inclusive, 100,
        RangeBoundaryType.Inclusive)]
    [PropertyComparisonValidator("MinVal", ComparisonOperator.GreaterThanEqual,
        MessageTemplate = @"Min cannot be greater or equal to Max")]
    [Required(ErrorMessage = @"MaxVal is required")]
    public int MaxVal
    {
        get { return (int)this.GetValue(MaxValProperty); }
        set { this.SetValue(MaxValProperty, value); }
    }

    [RangeValidator(1, RangeBoundaryType.Inclusive, 100,
        RangeBoundaryType.Inclusive)]
    [PropertyComparisonValidator("MaxVal", ComparisonOperator.LessThanEqual,
        MessageTemplate = @"Max cannot be less or equal to Min")]
    [Required(ErrorMessage = @"MinVal is required")]
    public int MinVal
    {
        get { return (int)this.GetValue(MinValProperty); }
        set { this.SetValue(MinValProperty, value); }
    }

XAML:

    <TextBox x:Name="txtMinVal" Margin="0,0,5,0" TextWrapping="Wrap" Text="{Binding MinVal, ValidatesOnDataErrors=true, NotifyOnValidationError=true, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Grid.Column="1" VerticalAlignment="Center" Grid.Row="1"
    />

    <Label x:Name="lblMinVal" Content="Min Value" Margin="5,0,0,0" VerticalAlignment="Center" HorizontalAlignment="Left" Grid.Row="1"/>

    <TextBox x:Name="txtMaxVal" Margin="0,0,5,0" TextWrapping="Wrap" Text="{Binding MaxVal, ValidatesOnDataErrors=true, NotifyOnValidationError=true, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Grid.Column="1" VerticalAlignment="Center" Grid.Row="2"
    />
    <Label x:Name="lblMaxVal" Content="Max Value" Margin="5,0,0,0" VerticalAlignment="Center" HorizontalAlignment="Left" Grid.Row="2"/>

    <Button x:Name="btnSave" Content="Save" Margin="0" Grid.Row="3" Grid.ColumnSpan="3" HorizontalAlignment="Center" VerticalAlignment="Center" IsEnabled="{Binding IsValid}"/>

问题是UI。 如果我输入最小= 5和max = 4,则两者都是无效的,并用红色边框标记。

但是,如果我更新最小= 3 - &gt;两者都改成正确。 检查验证它不会返回没有错误,并且是完美的。 ->但是UI仍然是最大的红色。只能更新最小的,因为该字段的属性换了。

对于WPF,是否有一个工作最小的最大示例?

谢谢。 米歇尔

I have a problem with the PropertyComparisonValidator of EntLib 5.0.
I set up an simple form with an Min and a Max field.
The validation is: when Min >= Max both properties are invalid.

    [RangeValidator(10, RangeBoundaryType.Inclusive, 100,
        RangeBoundaryType.Inclusive)]
    [PropertyComparisonValidator("MinVal", ComparisonOperator.GreaterThanEqual,
        MessageTemplate = @"Min cannot be greater or equal to Max")]
    [Required(ErrorMessage = @"MaxVal is required")]
    public int MaxVal
    {
        get { return (int)this.GetValue(MaxValProperty); }
        set { this.SetValue(MaxValProperty, value); }
    }

    [RangeValidator(1, RangeBoundaryType.Inclusive, 100,
        RangeBoundaryType.Inclusive)]
    [PropertyComparisonValidator("MaxVal", ComparisonOperator.LessThanEqual,
        MessageTemplate = @"Max cannot be less or equal to Min")]
    [Required(ErrorMessage = @"MinVal is required")]
    public int MinVal
    {
        get { return (int)this.GetValue(MinValProperty); }
        set { this.SetValue(MinValProperty, value); }
    }

The XAML:

    <TextBox x:Name="txtMinVal" Margin="0,0,5,0" TextWrapping="Wrap" Text="{Binding MinVal, ValidatesOnDataErrors=true, NotifyOnValidationError=true, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Grid.Column="1" VerticalAlignment="Center" Grid.Row="1"
    />

    <Label x:Name="lblMinVal" Content="Min Value" Margin="5,0,0,0" VerticalAlignment="Center" HorizontalAlignment="Left" Grid.Row="1"/>

    <TextBox x:Name="txtMaxVal" Margin="0,0,5,0" TextWrapping="Wrap" Text="{Binding MaxVal, ValidatesOnDataErrors=true, NotifyOnValidationError=true, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Grid.Column="1" VerticalAlignment="Center" Grid.Row="2"
    />
    <Label x:Name="lblMaxVal" Content="Max Value" Margin="5,0,0,0" VerticalAlignment="Center" HorizontalAlignment="Left" Grid.Row="2"/>

    <Button x:Name="btnSave" Content="Save" Margin="0" Grid.Row="3" Grid.ColumnSpan="3" HorizontalAlignment="Center" VerticalAlignment="Center" IsEnabled="{Binding IsValid}"/>

The problem is the UI.
If I input Min=5 and Max=4 then both are invalid and marked with a red border.

BUT if I update Min=3 --> both shold be correct.
Checking the validation it returns NO ERROR and is perfect.
-> But the UI still remains red for Max. Only Min will be updated, because this field had a PropertyChanged.

Is there a working Min Max example with EntLib for WPF?

Thank you.
Michele

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放我走吧 2024-10-14 04:15:46

不幸的是,VAB 5.0 中存在一个有关 PropertyComparisonValidator 的设计缺陷。使用集成库之一时,您无法使用此验证器装饰您的对象(就像对 WPF 所做的那样)。这是不幸的,因为我认为使用 PropertyComparisonValidator 比在 [SelfValidation] 方法中编写它要干净得多。

我在 VAB 论坛上创建了有关此问题的讨论。我希望 EntLib 团队能够在下一个版本中解决这个问题。

同时:不要使用 PropertyComparisonValidator 并将这些验证写入类型的 [SelfValidation] 方法中。

我希望这有帮助。

Unfortunately, there is a design flaw in VAB 5.0 concerning the PropertyComparisonValidator. You can't decorate your objects with this validator when using one of the integration libraries (as you do for WPF). This is unfortunate, because I think that using a PropertyComparisonValidator is much cleaner than writing this in a [SelfValidation] method.

I created a discussion about this on the VAB forum. I hope the EntLib team will fix this in the next release.

In the meantime: don't use the PropertyComparisonValidator and write these validations in the [SelfValidation] method of a type.

I hope this helps.

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