protected override ValidationResult IsValid(
object value
, ValidationContext validationContext)
{
if (value == null)
{
return(ValidationResult.Success);
}
try
{
if (value.GetType() != typeof(HttpPostedFileWrapper))
{
throw new InvalidOperationException("");
}
var errorMessage = new StringBuilder();
var file = value as HttpPostedFileBase;
if (_minimumFileSizeValidator != null)
{
if (!_minimumFileSizeValidator.IsValid(file))
{
errorMessage.Append(String.Format("{0}. ", _minimumFileSizeValidator.FormatErrorMessage(validationContext.DisplayName)));
}
}
if (_maximumFileSizeValidator != null)
{
if (!_maximumFileSizeValidator.IsValid(file))
{
errorMessage.Append(String.Format("{0}. ", _maximumFileSizeValidator.FormatErrorMessage(validationContext.DisplayName)));
}
}
if (_validFileTypeValidator != null)
{
if (!_validFileTypeValidator.IsValid(file))
{
errorMessage.Append(String.Format("{0}. ", _validFileTypeValidator.FormatErrorMessage(validationContext.DisplayName)));
}
}
if (String.IsNullOrEmpty(errorMessage.ToString()))
{
return(ValidationResult.Success);
}
else
{
return(new ValidationResult(errorMessage.ToString()));
}
}
catch (Exception excp)
{
return(new ValidationResult(excp.Message));
}
}
