public override bool Validate()
{
ClearError();
if (Required && !FileWasPosted)
{
Error = GetRequiredMessage();
}
else if (!string.IsNullOrEmpty(ValidExtensions))
{
var exts = ValidExtensions.ToUpperInvariant().Split(new[] { ";" }, StringSplitOptions.RemoveEmptyEntries);
foreach (var PostedFile in PostedFiles)
{
if (!exts.Contains(Path.GetExtension(PostedFile.FileName).ToUpperInvariant()))
{
Error = InvalidExtensionError;
break;
}
}
}
FireValidated();
return(ErrorIsClear);
}
void ProcessValidation()
{
bool skip = false;
this.Validation = new ValidationObject();
if (MustBeImage && !string.IsNullOrEmpty(FullName))
{
if (!FileHelper.IsImageFile(FullName))
{
Validation = new ValidationObject(string.Empty, ValidationValue.IsWarnState, "Must be an image file.");
skip = true;
}
}
if (!skip && !string.IsNullOrEmpty(FullName))
{
if (!string.IsNullOrEmpty(ValidExtensions) &&
(!ValidExtensions.ToUpperInvariant().Contains(new FileInfo(FullName).Extension.ToUpperInvariant() + ";") &&
ValidExtensions.ToUpperInvariant() != new FileInfo(FullName).Extension.ToUpperInvariant()))
{
Validation = new ValidationObject(string.Empty, ValidationValue.IsWarnState, "Not an expected extension.");
skip = true;
}
}
if (!skip && CheckFileExists && !string.IsNullOrEmpty(FullName))
{
bool IsInvalid = false;
if (!File.Exists(FullName))
{
IsInvalid = true;
if (!string.IsNullOrEmpty(AlternatePrefix))
{
IsInvalid = !File.Exists(Path.Combine(AlternatePrefix, new FileInfo(FullName).Name));
}
if (IsInvalid)
{
if (SearchPrefixes != null)
{
foreach (string src in SearchPrefixes)
{
int adjust = -1;
if (!string.IsNullOrEmpty(Prefix))
{
adjust = Prefix.Length;
}
string fle = Path.Combine(src, FullName.Substring(adjust + 1));
IsInvalid = !File.Exists(fle);
if (!IsInvalid)
{
break;
}
}
}
}
}
if (IsInvalid)
{
Validation = new ValidationObject(string.Empty, ValidationValue.IsError, "File does not exist");
skip = true;
}
}
}
