private bool ValueIsValid(object value)
{
// Go through all the model validation attribute to make sure they're valid
foreach (var attrib in Column.Attributes.Cast <Attribute>().OfType <ValidationAttribute>())
{
// Ignore it if it's found in the ignore list
if (_ignoredModelValidationAttributes != null &&
_ignoredModelValidationAttributes.ContainsKey(attrib.GetType()))
{
continue;
}
//DynamicValidator can not pass in a ValidationContext as it does
//not have an easy way to get the data object row. Hence we will
//not support attributes that require Validation Context (Ex : CompareAttribute).
if (attrib.RequiresValidationContext)
{
continue;
}
if (!attrib.IsValid(value))
{
ErrorMessage = HttpUtility.HtmlEncode(StringLocalizerUtil.GetLocalizedString(attrib, Column.DisplayName));
return(false);
}
}
return(true);
}
private void SetUpRangeValidator(RangeValidator validator, MetaColumn column)
{
// Nothing to do if no range was specified
var rangeAttribute = column.Attributes.OfType <RangeAttribute>().FirstOrDefault();
if (rangeAttribute == null)
{
return;
}
// Make sure the attribute doesn't get validated a second time by the DynamicValidator
IgnoreModelValidationAttribute(rangeAttribute.GetType());
validator.Enabled = true;
Func <object, string> converter;
switch (validator.Type)
{
case ValidationDataType.Integer:
converter = val => Convert.ToInt32(val, CultureInfo.InvariantCulture).ToString(CultureInfo.InvariantCulture);
break;
case ValidationDataType.Double:
converter = val => Convert.ToDouble(val, CultureInfo.InvariantCulture).ToString(CultureInfo.InvariantCulture);
break;
case ValidationDataType.String:
default:
converter = val => val.ToString();
break;
}
validator.MinimumValue = converter(rangeAttribute.Minimum);
validator.MaximumValue = converter(rangeAttribute.Maximum);
if (String.IsNullOrEmpty(validator.ErrorMessage))
{
validator.ErrorMessage = HttpUtility.HtmlEncode(
StringLocalizerUtil.GetLocalizedString(rangeAttribute, column.DisplayName));
}
}
private void SetUpRegexValidator(RegularExpressionValidator validator, MetaColumn column)
{
// Nothing to do if no regex was specified
var regexAttribute = column.Attributes.OfType <RegularExpressionAttribute>().FirstOrDefault();
if (regexAttribute == null)
{
return;
}
// Make sure the attribute doesn't get validated a second time by the DynamicValidator
IgnoreModelValidationAttribute(regexAttribute.GetType());
validator.Enabled = true;
validator.ValidationExpression = regexAttribute.Pattern;
if (String.IsNullOrEmpty(validator.ErrorMessage))
{
validator.ErrorMessage = HttpUtility.HtmlEncode(
StringLocalizerUtil.GetLocalizedString(regexAttribute, column.DisplayName));
}
}
