using System;
using System.Web;
using System.IO;
using System.Security.Cryptography;
using System.Text.RegularExpressions;

namespace MyOraComm
{
/// <summary>
/// FuncTion  A summary of.
/// </summary>
public class Function
{
  public Function()
  {
   //
   // TODO:  Add the constructor logic here
   //
  }
  // ====== ==============================================================================
  //========================= Foreground output statement method ================================
  //=======================================================================================
  #region  The pop-up javascript dialog , Whether to return or end.
  public void WriteMessage(string strMsg,bool Back,bool End)
  {
   HttpContext Context=HttpContext.Current;
   strMsg=strMsg.Replace("'","");
   strMsg=strMsg.Replace("/r/n","");
   if(strMsg!=""&&strMsg!=null)
    Context.Response.Write("<script language=javascript>alert('"+strMsg+"');</script>");
   if(Back)
    Context.Response.Write("<script language=javascript>history.back();</script>");
   if(End)
    Context.Response.End();
  }
  #endregion

  #region  write javascript Content of the statement ,<script language=javascript></script> It's written.
  public void WriteJavaScript(string strJavaScript)
  {
   HttpContext Context=HttpContext.Current;
   Context.Response.Write("<script language=javascript>"+strJavaScript+"</script>");
  }
  #endregion

  #region  Close the current page
  public void CloseWindow()
  {
   HttpContext Context=HttpContext.Current;
   Context.Response.Write("<script language=javascript>window.close();</script>");
   Context.Response.End();
  }
  #endregion

  //====================================================================================
  //========================= Validation class methods written using regular expressions ================================
  //=====================================================================================

  #region  Using regular expressions . Verify that the input is a number
  public bool IsValidNumer(string str)
  {
   System.Text.RegularExpressions.Regex reg1
    = new System.Text.RegularExpressions.Regex(@"^[-]?/d+[.]?/d*$");
   return reg1.IsMatch(str);
  }
  #endregion

  #region  Verify that it is a decimal
  public bool IsValidDecimal(string str)
  {
   return Regex.IsMatch(str,@"[0]./d{1,2}|[1]");
  }

  #endregion

  #region  validation Email address
  public bool IsValidEmail(string strIn)
  {
   // Return true if strIn is in valid e-mail format.
   return Regex.IsMatch(strIn, @"^([/w-/.]+)@((/[[0-9]{1,3}/.[0-9]{1,3}/.[0-9]{1,3}/.)|(([/w-]+/.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(/]?)$");
  }
  #endregion

  #region dd-mm-yy  Date form instead  mm/dd/yy  Date format.
  public string MDYToDMY(String input)
  {
   return Regex.Replace(input,"//b(?//d{1,2})/(?//d{1,2})/(?//d{2,4})//b","${day}-${month}-${year}");
  }
  #endregion

  #region  Verify that it is a phone number
  public bool IsValidTelNum(string strIn)
  {
   return Regex.IsMatch(strIn,@"(/d+-)?(/d{4}-?/d{7}|/d{3}-?/d{8}|^/d{7,8})(-/d+)?");
  }
  #endregion

  #region  Verify year month day
  bool IsValidDate(string strIn)
  {
   return Regex.IsMatch(strIn,@"^2/d{3}-(?:0?[1-9]|1[0-2])-(?:0?[1-9]|[1-2]/d|3[0-1])(?:0?[1-9]|1/d|2[0-3])?:0?[1-9]|[1-5]/d)?:0?[1-9]|[1-5]/d)$");
  }
  #endregion

  #region  Verify the suffix name
  bool IsValidPostfix(string strIn)
  {
   return Regex.IsMatch(strIn,@"/.(?i:gif|jpg)$");
  }
  #endregion

  #region  Verify that the character is present 4 to 12 between
  bool IsValidByte(string strIn)
  {
   return Regex.IsMatch(strIn,@"^[a-z]{4,12}$");
  }
  #endregion

  #region  validation IP
  bool IsValidIp(string strIn)
  {
   return Regex.IsMatch(strIn,@"^(/d{1,2}|1/d/d|2[0-4]/d|25[0-5])/.(/d{1,2}|1/d/d|2[0-4]/d|25[0-5])/.(/d{1,2}|1/d/d|2[0-4]/d|25[0-5])/.(/d{1,2}|1/d/d|2[0-4]/d|25[0-5])$");
  }
  #endregion
}
}