internal static void ValidateMaximumNumericValue(this FormElementElement element)
{
string maximumValue = element.GetAttributeValue("max");
decimal maximumNumericValue;
try
{
maximumNumericValue = decimal.Parse(maximumValue);
}
catch
{
return;
}
decimal elementValue;
try
{
elementValue = decimal.Parse(element.Value);
}
catch
{
throw new FormElementValidationException("Invalid element value.");
}
if (elementValue > maximumNumericValue)
{
throw new FormElementValidationException(string.Format("Value must be less than or equal to {0}.", maximumValue));
}
}
/// <summary>
/// An extension method for minimum length validation
/// </summary>
/// <param name="element"></param>
internal static void ValidateMinimumLength(this FormElementElement element)
{
int?minLength = element.ParseNonNegativeIntegerAttribute("minlength", 0);
if (element.Value.Length < minLength)
{
throw new FormElementValidationException(string.Format("Please lengthen this text to {0} characters or more (you are currently using {1} characters)", minLength, element.Value.Length));
}
}
internal static void ValidatePattern(this FormElementElement element)
{
string pattern = element.GetAttributeValue("pattern");
if (!string.IsNullOrWhiteSpace(pattern))
{
Regex expression = new Regex(pattern);
MatchCollection matches = expression.Matches(element.Value);
if (matches.Count == 0)
{
string title = element.GetAttributeValue("title");
string message = string.Empty;
if (title != null)
{
message = string.Format("\r\n{0}", title);
}
throw new FormElementValidationException(string.Format("Please match the requested format.{0}", message));
}
}
}
