/// <summary>
/// 验证文件是否为允许的格式
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public virtual bool VerifyFileType(string fileName)
{
string ext = Regex.Match(fileName, "\\.[^\\.]+$").Value;
if (string.IsNullOrEmpty(ext))
{
return(false);
}
ext = ext.Substring(1);
string exts = "(" + Allow.Replace(",", ")|(") + ")";
return(exts.IndexOf("(" + ext + ")", StringComparison.OrdinalIgnoreCase) != -1);
}
