C# Code:

/// <summary>
/// 更改连接字符串的超时时间(适用MsSQL,MySQL)
/// </summary>
/// <param name="sConn">连接字符串</param>
/// <param name="TIME_OUT">超时时间,秒</param>
internal static void SetTimeOut(ref string sConn, int TIME_OUT)
{
   if (sConn.ToLower().IndexOf("Connection TimeOut".ToLower(), 0) <= 0)
   {
      sConn = sConn + ";Connection TimeOut=" + TIME_OUT.ToString() + ";";
   }
   else
   {
      string[] items = sConn.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
      for (int i = 0; i <= items.Length - 1; i++)
      {
         string s = items[i];
         //;Connection TimeOut={4};
         if (s.ToLower().IndexOf("Connection TimeOut".ToLower(), 0) >= 0)
         {
            string[] t = s.Split('=');
            items[i] = "Connection TimeOut=" + TIME_OUT.ToString();
         }
      }
      StringBuilder sb = new StringBuilder();
      foreach (string s in items) sb.Append(s + ";");
      sConn = sb.ToString();
   }
}

//来源:C/S框架网(www.csframework.com) QQ:23404761