Form2 fr = new Form2();this.hide();fr.ShowDialog(this); 

private void Form2_FormClosed(object sender, FormClosedEventArgs e){Login login = (Login)this.Owner;login.Dispose();login.Close();}

private Point mPoint = new Point(); private void Form1_MouseDown(object sender, MouseEventArgs e){mPoint.X = e.X;mPoint.Y = e.Y;} private void Form1_MouseMove(object sender, MouseEventArgs e){if (e.Button == MouseButtons.Left){Point myPosittion = MousePosition;myPosittion.Offset(-mPoint.X, -mPoint.Y);Location = myPosittion;}}

1，for (int i = 0; i< dt.rows.count; i++){    string strname = dt.rows[i]["字段名"].tostring();}2, foreach(datarow myrow in mydataset.tables["temp"].rows){    var str = myrow[0].tostring();}3,foreach(datarow dr in dt.rows){    object value = http://www.mamicode.com/dr["columnsname"];}4,Datatable.select("kymd>‘2011-11-5‘ or kymd is null")

//前提：dt1和dt2表结构相同foreach (DataRow dr in dt2.Rows)dt1.Rows.Add(dr.ItemArray);//绑定表格dataGridView1.DataSource = dt1; ----------------------------------------------------------------------------------修改datatable中的列名称MyDt.Columns["xx"].ColumnName = "aa"; 

//初始化下拉框值Dictionary<string, string> dic = new Dictionary<string, string>();dic.Add("气压", "AIRP");dic.Add("气温", "ATMP");dic.Add("湿度", "RHU");dic.Add("降水", "ACCP");dic.Add("风速", "WIN");dic.Add("日照", "SSD");dic.Add("地温", "GST");dic.Add("蒸发", "ACCE");DataTable dt = new DataTable();dt.Columns.Add("key");dt.Columns.Add("name");foreach (var item in dic){DataRow dr = dt.NewRow();dr["key"] = item.Key;dr["name"] = item.Value;dt.Rows.Add(dr);}this.cmbType.DataSource = dt;this.cmbType.DisplayMember = "key";this.cmbType.ValueMember = "name"; 

//获取自定义事件axShockwaveFlash1.FlashCall += new AxShockwaveFlashObjects._IShockwaveFlashEvents_FlashCallEventHandler(axShockwaveFlash1_FlashCall); //鼠标点击弹出信息public void axShockwaveFlash1_FlashCall(object sender, AxShockwaveFlashObjects._IShockwaveFlashEvents_FlashCallEvent e){XmlDocument document = new XmlDocument();document.LoadXml(e.request); XmlAttributeCollection attributes = document.FirstChild.Attributes;string command = attributes.Item(0).InnerText;MessageBox.Show(command);}  

//设置skin皮肤全局string path = Application.StartupPath + @"\skin\Warm\WarmColor3.ssk";se = new Sunisoft.IrisSkin.SkinEngine();se.SkinAllForm = true;se.SkinFile = path;this.StartPosition = FormStartPosition.CenterScreen;

string iconPath = Application.StartupPath + @"\image\a.ico";this.Icon = new Icon(iconPath);

[System.Runtime.InteropServices.DllImport("user32.dll")]private static extern bool AnimateWindow(IntPtr whnd, int dwtime, int dwflag);//dwflag的取值如下public const Int32 AW_HOR_POSITIVE = 0x00000001;//从左到右显示public const Int32 AW_HOR_NEGATIVE = 0x00000002;//从右到左显示public const Int32 AW_VER_POSITIVE = 0x00000004;//从上到下显示public const Int32 AW_VER_NEGATIVE = 0x00000008;//从下到上显示public const Int32 AW_CENTER = 0x00000010;//若使用了AW_HIDE标志，则使窗口向内重叠，即收缩窗口；否则使窗口向外扩展，即展开窗口public const Int32 AW_HIDE = 0x00010000;//隐藏窗口，缺省则显示窗口public const Int32 AW_ACTIVATE = 0x00020000;//激活窗口。在使用了AW_HIDE标志后不能使用这个标志public const Int32 AW_SLIDE = 0x00040000;//使用滑动类型。缺省则为滚动动画类型。当使用AW_CENTER标志时，这个标志就被忽略public const Int32 AW_BLEND = 0x00080000;//透明度从高到低 private void MainFM_Load(object sender, EventArgs e){//淡入效果AnimateWindow(this.Handle, 3000, AW_BLEND | AW_ACTIVATE);} private void MainFM_FormClosing(object sender, FormClosingEventArgs e){//淡出AnimateWindow(this.Handle, 3000, AW_BLEND | AW_HIDE);} 

BandedGridView view = advBandedGridView1 as AdvBandedGridView;GridBand bindSTCD = view.Bands.AddBand("站点信息");bindSTCD.Fixed = FixedStyle.Left;

string result = String.Format("{0:N2}", 0.55555);//N几就几位

string btopPath = Application.StartupPath + @"\SaveData\BTOP";DirectoryInfo mydir = new DirectoryInfo(btopPath);foreach (FileInfo item in mydir.GetFiles()){MessageBox.Show(item.FullName);} 

private static void LoadTime(int time1, int time2){string btopPath = Application.StartupPath + @"\SaveData\BTOP";DirectoryInfo mydir = new DirectoryInfo(btopPath);string data = http://www.mamicode.com/""; foreach (FileInfo item in mydir.GetFiles()){using (StreamReader sr = new StreamReader(item.FullName)){for (int i = 0; i < 3; i++){data += sr.ReadLine() + " ";}string rege = @"\d{10}";bool b = true;foreach (Match mm in Regex.Matches(data, rege, RegexOptions.IgnoreCase)){ if (b == true){b = false;time1 = int.Parse(mm.Value);time1 = int.Parse(time1.ToString().Substring(0, 4));}else{time2 = int.Parse(mm.Value);time2 = int.Parse(time2.ToString().Substring(0, 4));}