namespace Learun.Application.Web.Extensions
{
    public class StrHelper
    {

        public static string DelErrChar(string str)
        {
            str = str.Trim().ToLower();
            if (string.IsNullOrEmpty(str))
                return string.Empty;

            string[] ErrStr = new string[] { "select", "update", "insert", "delete", "'", ";", ":", "@", "or", "and", "drop", "alter", "create", "exec" };
            for (int i = 0; i < ErrStr.Length; i++)
            {
                if (str.Contains(ErrStr[i]))
                {
                    str = str.Replace(ErrStr[i], string.Empty);
                }
            }
            return str;
        }
    }
}