Simplify using of ValidationRules

Question

I'm working on a C# project in WPF.

In my main windows I have 5 (maybe more late) TextBox, each box contains a float with a value between 0 and 100.

I've created a validation rule :

class RangeValidationRule : ValidationRule
{
    public float MinValue { get; set; }
    public float MaxValue { get; set; }

    public override ValidationResult Validate(object value, System.Globalization.CultureInfo cultureInfo)
    {
        float intValue;

        string text = String.Format("Must be between {0} and {1}",
                       MinValue, MaxValue);
        if (!float.TryParse(value.ToString(), out intValue))
            return new ValidationResult(false, "Not a float");
        if (intValue < MinValue)
            return new ValidationResult(false, "To small. " + text);
        if (intValue > MaxValue)
            return new ValidationResult(false, "To large. " + text);
        return ValidationResult.ValidResult;
    }
}

But I don't know how to simplify the using of it. Actually I use it like this :

<TextBox Grid.Row="3" Grid.Column="1"
         Style="{StaticResource StyleTextBox}">
    <TextBox.Text>
        <Binding Path="ValueToBind" UpdateSourceTrigger="PropertyChanged">
            <Binding.ValidationRules>
                <local:RangeValidationRule MinValue="0" MaxValue="100"/>
            </Binding.ValidationRules>
        </Binding>
    </TextBox.Text>
</TextBox>

How can I simplify my code ? Can I create a style for this type of TextBox ?

<Style x:Key="StyleTextBox0To100" TargetType="TextBox"
       BasedOn="{StaticResource StyleTextBox}">
       <!-- What should I write ? -->
</Style>

Answer 1

The solution you are searching is BindingGroup

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