C#的一些代码

form读取配置文件

       /// <summary>
        /// 读取配置文件
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        /// 引用 port.BaudRate = int.Parse(GetConfig(string.Format("Com_{0}_BaudRate", index)));   port.ByteSize = byte.Parse(GetConfig(string.Format("Com_{0}_ByteSize", index)));
        private static string GetConfig(string key)
        {

            System.Configuration.AppSettingsReader config = new System.Configuration.AppSettingsReader();
            return config.GetValue(key, typeof(string)).ToString();
        }

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form遍历文件夹内的文件,返回DataTable表

        public DataTable File_data(string sSourcePath)
        {

            DataTable Filedata = new DataTable(); //实例化
            Filedata.Columns.Add("RelativePath", Type.GetType("System.String"));//添加列
            Filedata.Columns.Add("FullPath", Type.GetType("System.String"));//添加列
             DirectoryInfo theFolder = new DirectoryInfo(sSourcePath);//遍历文件夹
            FileInfo[] thefileInfo = theFolder.GetFiles("*.*", SearchOption.TopDirectoryOnly);//仅只搜目录下的文件
            foreach (FileInfo NextFile in thefileInfo)  //遍历文件
                Filedata.Rows.Add(NextFile.Name,NextFile.FullName);//向表添加数据
            DirectoryInfo[] dirInfo = theFolder.GetDirectories(); //遍历子文件夹,返回当前目录的子目录
            foreach (DirectoryInfo NextFolder in dirInfo)//
            {
                FileInfo[] fileInfo = NextFolder.GetFiles("*.*", SearchOption.AllDirectories);//搜子目录下的文件,功能找子目录下的文件
                foreach (FileInfo NextFile in fileInfo)  //遍历文件
                    Filedata.Rows.Add(NextFile.Name, NextFile.FullName);//向表添加数据行
            }
            return Filedata;//返回值
         }

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调用

DataTable dt = File_data(@"D:\mywed");

计算文件的hash值

internal string CalcFileHash(string FilePath)
        {
            MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
            byte[] hash;
            using (FileStream fs = new FileStream(FilePath, FileMode.Open, FileAccess.Read, FileShare.Read, ))
            {
                hash = md5.ComputeHash(fs);
            }
            return BitConverter.ToString(hash);
        }

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webBrowser控件显示网页

this.webBrowser1.DocumentText = "<h1>测试</h1>";

form全局异常捕获

       #region Constructor
        static FileTransmiter()
        {
            AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
        }

        static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            StreamWriter writer = new StreamWriter(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "exec.log"), true, Encoding.Default);
            writer.Write("Time:");
            writer.Write(DateTime.Now.ToShortTimeString());
            writer.Write(". ");
            writer.WriteLine(e.ExceptionObject);
            writer.Dispose();
        }
         #endregion

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线程委托操作控件

        /// <summary>
        /// 声明委托
        /// </summary>
        /// <param name="add_lst"></param>
        public delegate void lstServeritms(string add_lst);
        /// <summary>
        /// 线程通过委托的方法写入控件
        /// </summary>
        /// <param name="add_lst">字符串"test"</param>
        private void lstServeritmsResult(string add_lst)
        {
            if (lstServer.InvokeRequired == true)//检查是否跨线程，然后将方法加入委托，调用委托
            {
                lstServeritms set = new lstServeritms(lstServeritmsResult);//委托的方法参数应和SetCalResult一致
                lstServer.Invoke(set, new object[] { add_lst }); //此方法第二参数用于传入方法,代替形参result
            }
            else
            {
                lstServer.Items.Add(add_lst);
            }

        }

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DataTable修改更新数据库

private OleDbConnection oCon = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;       Data Source=|DataDirectory|\\db\\data.mdb");
 DataTable dt = new DataTable();
            using (oCon)
            {
                //先取出从数据库中取出Datatable
                OleDbCommand sqlcmd = new OleDbCommand("select * from  code_cheat where id=" + int.Parse(id), oCon);
                oCon.Open();
                OleDbDataReader sqlReader = null;
                sqlReader = sqlcmd.ExecuteReader();
                dt.Load(sqlReader);

                //修改一条记录
                dt.Rows[]["code_content"] = postDataText;//修改字段的值

                //以下三行代码就是把上面更改的数据更新到数据库中
                OleDbDataAdapter sda = new OleDbDataAdapter(sqlcmd);
                OleDbCommandBuilder sqlcmdB = new OleDbCommandBuilder(sda);
                sda.Update(dt);
            }

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dataGridView返回当前行单击行的值

 private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            int rowindex = e.RowIndex;
            string code_id = dataGridView1.Rows[rowindex].Cells[].Value.ToString();
                   }

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查询ACCESS

/// <summary>
/// OleDb查询数据库返回内容
/// </summary>
/// <param name="sql_str"></param>
/// <returns></returns>
protected DataTable dlBind(string sql_str)
{
    oCon.Open();
    OleDbCommand ps = new OleDbCommand(sql_str, oCon);
    DataTable dt = new DataTable();
    dt.Load(ps.ExecuteReader());
    oCon.Close();
    return dt;

}

打开文件并读取内容,保存字符到文件

/// <summary>
///  打开文件,反回字符串
/// </summary>
/// <param name="file_path">"SyntaxHighligher/com.html"</param>
/// <returns></returns>
private string openfiletext(string file_path)
{
    StreamReader htmlreader = new StreamReader(file_path);
    return htmlreader.ReadToEnd();

}
/// <summary>
/// 保存字符串到文件
/// </summary>
/// <param name="filetext"></param>
/// <param name="file_path">"SyntaxHighligher/com.html"</param>
private void writefiletext(string filetext,string file_path)
{
    FileStream MyFileStream = new FileStream(file_path, FileMode.Create, FileAccess.Write);
    StreamWriter htmlWriter = new StreamWriter(MyFileStream, System.Text.Encoding.UTF8);
    htmlWriter.WriteLine(filetext);
    htmlWriter.Close();
    MyFileStream.Close();

}

转换人民币大写

public static string CmycurD(double num)
        {
            string str1 = "零壹贰叁肆伍陆柒捌玖";            //0-9所对应的汉字
            string str2 = "万仟佰拾亿仟佰拾万仟佰拾元角分"; //数字位所对应的汉字
            string str3 = "";    //从原num值中取出的值
            string str4 = "";    //数字的字符串形式
            string str5 = "";  //人民币大写金额形式
            int i;    //循环变量
            int j;    //num的值乘以100的字符串长度
            string ch1 = "";    //数字的汉语读法
            string ch2 = "";    //数字位的汉字读法
            int nzero = ;  //用来计算连续的零值是几个
            int temp;            //从原num值中取出的值

            num = Math.Round(Math.Abs(num), );    //将num取绝对值并四舍五入取2位小数
            str4 = (num * ).ToString();        //将num乘100并转换成字符串形式
            j = str4.Length;      //找出最高位
            if (j > ) { return "溢出"; }
            str2 = str2.Substring( - j);   //取出对应位数的str2的值。如：200.55,j为5所以str2=佰拾元角分

            //循环取出每一位需要转换的值
            for (i = ; i < j; i++)
            {
                str3 = str4.Substring(i, );          //取出需转换的某一位的值
                temp = Convert.ToInt32(str3);      //转换为数字
                if (i != (j - ) && i != (j - ) && i != (j - ) && i != (j - ))
                {
                    //当所取位数不为元、万、亿、万亿上的数字时
                    if (str3 == "")
                    {
                        ch1 = "";
                        ch2 = "";
                        nzero = nzero + ;
                        if (i == (j - ))//如果有"0角"则不显示零
                        {
                            nzero = ;
                        }

                    }
                    else
                    {
                        if (str3 != "" && nzero != ) //如果是连续的0时
                        {

                            ch1 = "零" + str1.Substring(temp * , );
                            ch2 = str2.Substring(i, );
                            nzero = ;

                        }
                        else
                        {
                            ch1 = str1.Substring(temp * , );
                            ch2 = str2.Substring(i, );
                            nzero = ;
                        }
                    }
                }
                else
                {
                    //该位是万亿，亿，万，元位等关键位
                    if (str3 != "" && nzero != )//前面有零的除0之外的数
                    {
                        ch1 = "零" + str1.Substring(temp * , );
                        ch2 = str2.Substring(i, );
                        nzero = ;
                    }
                    else //前面没零或 str3=0
                    {
                        if (str3 != "" && nzero == ) //值不是0时 前面没零只转换字符
                        {
                            ch1 = str1.Substring(temp * , );
                            ch2 = str2.Substring(i, );
                            nzero = ;
                        }
                        else
                        {
                            if (str3 == "" && nzero >= )
                            {
                                ch1 = "";
                                ch2 = "";
                                nzero = nzero + ;
                            }
                            else
                            {
                                if (j >= )
                                {
                                    ch1 = "";
                                    nzero = nzero + ;
                                }
                                else
                                {
                                    ch1 = "";
                                    ch2 = str2.Substring(i, );
                                    nzero = nzero + ;
                                }
                            }
                        }
                    }
                }
                if (i == (j - ) || i == (j - ) || i == (j - ))
                {
                    //如果该位是亿位万元或元位，则必须写上
                    ch2 = str2.Substring(i, );
                }
                str5 = str5 + ch1 + ch2;

                if (i == j -  && str3 == "")
                {
                    //最后一位（分）为0时，加上“整”
                    str5 = str5 + '整';
                }
            }
            if (num == )
            {
                str5 = "零元整";
            }
            return str5;
        }

        /**/
        /// <summary>
        /// 一个重载，将字符串先转换成数字在调用CmycurD(decimal num)
        /// </summary>
        /// <param name="num">用户输入的金额，字符串形式未转成decimal</param>
        /// <returns></returns>
        public static string CmycurD(string numstr)
        {
            try
            {
                double num = Convert.ToDouble(numstr);
                return CmycurD(num);
            }
            catch
            {
                return "非数字形式！";
            }
        }

以管理员身份运行某程序

有一条case需要测试non-admin用户下运行软件产生的event信息。 由于Automation的大job是在admin用户下运行的，因此需要切换到non-admin用户，而这无论是在WTT中还是.NET中切换用户都是比较困难的。因此需要采用run as的策略，也就是在当前的admin用户下，通过code来使得所测软件在non-admin用户下运行。

下面这段代码实现了在指定的用户下运行某程序。可以从config文件中读取指定的用户。
注意：指定用户的密码不能为空，否则会有异常抛出。

public static bool LauchMontanaBrt(string inUserName,string inPassWord)
        {
            try
            {
                Process MBRTProcess = new Process();
                MBRTProcess.StartInfo.UserName = inUserName;
                string strPWD = inPassWord;
                SecureString password = new SecureString();
                foreach (char c in strPWD.ToCharArray())
                {
                    password.AppendChar(c);
                }
                MBRTProcess.StartInfo.Password = password;
                MBRTProcess.StartInfo.WorkingDirectory = AppDomain.CurrentDomain.BaseDirectory;
                MBRTProcess.StartInfo.FileName = "xxx.exe";
                MBRTProcess.StartInfo.Arguments = "/run /wu";
                MBRTProcess.StartInfo.UseShellExecute = false;
                MBRTProcess.Start();
                return true;
            }
            catch(Exception error)
            {
                Console.writeline(error.Message);
                return false;
            }
        }