主机名称 and IP 地址
using System.Net;
void Button2_Click(System.Object sender, System.EventArgs e)
{
IPHostEntry ipEntry = Dns.GetHostByName (Dns.GetHostName());
IPAddress [] addr = ipEntry.AddressList;
for (int i = 0; i < addr.Length; i++)
{
MessageBox.Show ("Host name: "+Environment.UserName+"\r\n"+"IP-
Addresse: "+addr[i].ToString ());
}
}
置位/复位/切换寄存器的位
void btnSetBit0_Click(System.Object sender, System.EventArgs e)
{
Globals.Tags.MB0.Value |= 1; // Set Bit 0 in Tag “MB0”
}
void btnReSetBit1_Click(System.Object sender, System.EventArgs e)
{
Globals.Tags.MB0.Value &= ~2; // Reset Bit 1 in Tag “MB0”
}
void btnToggleBit2_Click(System.Object sender, System.EventArgs e)
{
Globals.Tags.MB0.Value ^= 4; // Toggle Bit 2 in Tag “MB0”
}
平台检查
if (System.Environment.OSVersion.Platform == PlatformID.WinCE)
TimeSpan TS时间间隔
TimeSpan TS;
DateTime myDate;
private void OnTimerTick(Object sender, EventArgs e)
{
TS = myDate - DateTime.Parse(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
anRestzeit.Text = TS.TotalSeconds.ToString();
}
定时同步PLC屏
using System.Runtime.InteropServices;
public partial class SCM_TimeSync
{
private struct SYSTEMTIME
{
public short wYear,wMonth,wDayOfWeek,wDay,wHour,wMinute,wSecond,wMilliseconds;
}
// Windows CE (dll)
[DllImport("coredll.dll", SetLastError = true)]
static extern bool SetLocalTime(ref SYSTEMTIME time);
[DllImport("coredll.dll", SetLastError = true)]
static extern bool GetLocalTime(ref SYSTEMTIME time);
#region //Synchronization PLC -> Panel
public bool SetHMITime(int Year, int Month, int Day, int Hour, int Minute, int Seconds)
{
try
{
SYSTEMTIME st = new SYSTEMTIME();
GetLocalTime(ref st);
st.wYear = (short)(2000 + Year);
st.wMonth = (short)(Month);
st.wDay = (short)(Day);
st.wHour = (short)(Hour);
st.wMinute = (short)(Minute);
st.wSecond = (short)(Seconds);
st.wMilliseconds = 0;
SetLocalTime(ref st);
return (true);
}
catch
{
return(false);
}
}
#endregion
}
读文件/写文件到Textbox
using System.IO;
public partial class ScriptModule1
{
public string ReadText(string path)
{
string text = "";
try
{
using (StreamReader reader = new StreamReader(path))
{
text = reader.ReadToEnd();
}
}
catch{
MessageBox.Show("Error accessing file");
}
return text;
}
public void WriteText(string path, string text)
{
try {
using (StreamWriter writer = new StreamWriter(path))
{
writer.Write(text);
}
}
catch{
MessageBox.Show("Error accessing file");
}
}
}
}
保存对话框
using System.IO;
void btnSaveAs_Click(System.Object sender, System.EventArgs e)
{
string path = string.Empty;
SaveFileDialog sfd1 = new SaveFileDialog();
sfd1.InitialDirectory = "c:\\" ;
sfd1.Filter = "INI Files (*.ini)|*.ini|All Files (*.*)|*.*";
sfd1.Title = "Choose File Path" ;
sfd1.ShowDialog();
path = sfd1.FileName;
if (sfd1.FileName != String.Empty)
{
TextWriter writer = new StreamWriter(path);
foreach (string Item in lbFileContent.Items)
writer.Write(Item + "\r\n");
writer.Close();
}
}
发邮件
using System.Net.Mail;
void Button1_Click(System.Object sender, System.EventArgs e)
{
MailMessage sm = new MailMessage();
try
{
sm.From = new MailAddress ("iX@cb.de");
sm.To.Add ("receiver@testdomain.de");
sm.Subject = "Value of 'MailValue' is too high!";
sm.Body = "Value of 'MailValue' is: "+Globals.Tags.MailValue.Value;
SmtpClient smtp = new SmtpClient("127.0.0.1");
smtp.Send (sm);
}
catch (Exception ex)
{
MessageBox.Show("Attention! "+ex.ToString());
}
}
访问Access数据库
using System.Data.OleDb;
using System.Data;
public partial class Screen2
{
OleDbConnection odbc;
void Button1_Click(System.Object sender, System.EventArgs e)
{
try
{
odbc = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data
Source=c:\\db1.mdb");
odbc.Open();
OleDbCommand cmd = new OleDbCommand("SELECT * FROM Datenbank", odbc);
OleDbDataAdapter odbda = new OleDbDataAdapter(cmd);
DataTable dt=new DataTable();
odbda.Fill(dt);
DataGridView1.DataSource = dt;
}
catch (Exception ex)
{
MessageBox.Show("Fehler in der Datenbankverbindung\r\n\n" +ex.ToString());
}
finally
{
odbc.Close();
}
}
}
通过“itextsharp.dll”创建带有图片的PDF文件
using iTextSharp.text.pdf;
using iTextSharp.text;
using System.IO;
void CreatePDF_Click(System.Object sender, System.EventArgs e)
{
Document doc = new Document(iTextSharp.text.PageSize.LETTER, 10, 10, 42, 35);
try
{
string pdfFilePath = "C:/myPdf.pdf";
PdfWriter wri = PdfWriter.GetInstance(doc, new FileStream(pdfFilePath,
FileMode.Create));
doc.Open();
Paragraph paragraph = new Paragraph("TEST STRING");
string imageFilePath = "C:/Sunset.jpg";
iTextSharp.text.Image jpg = iTextSharp.text.Image.GetInstance(imageFilePath);
jpg.ScaleToFit(280f, 260f);
jpg.SpacingBefore = 30f;
jpg.SpacingAfter = 1f;
jpg.Alignment = Element.ALIGN_CENTER;
doc.Add(paragraph);
doc.Add(jpg);
}
catch (Exception ex)
{
MessageBox.Show("Exception ausgelöst!\r\n\n" +ex.ToString());
}
finally
{
doc.Close();
}
}
通过“itextsharp.dll”创建带有图片的PDF文件
using iTextSharp.text.pdf;
using iTextSharp.text;
using System.IO;
void CreatePDF_Click(System.Object sender, System.EventArgs e)
{
Document doc = new Document(iTextSharp.text.PageSize.LETTER, 10, 10, 42, 35);
try
{
string pdfFilePath = "C:/myPdf.pdf";
PdfWriter wri = PdfWriter.GetInstance(doc, new FileStream(pdfFilePath,
FileMode.Create));
doc.Open();
Paragraph paragraph = new Paragraph("TEST STRING");
string imageFilePath = "C:/Sunset.jpg";
iTextSharp.text.Image jpg = iTextSharp.text.Image.GetInstance(imageFilePath);
jpg.ScaleToFit(280f, 260f);
jpg.SpacingBefore = 30f;
jpg.SpacingAfter = 1f;
jpg.Alignment = Element.ALIGN_CENTER;
doc.Add(paragraph);
doc.Add(jpg);
}
catch (Exception ex)
{
MessageBox.Show("Exception ausgelöst!\r\n\n" +ex.ToString());
}
finally
{
doc.Close();
}
}
用带有页码号的指定PDF查看器打开PDF 文件
void OpenPDF_Click(System.Object sender, System.EventArgs e)
{
System.Diagnostics.Process openpdf = new System.Diagnostics.Process();
openpdf.StartInfo.FileName = @"C:\Program Files\Adobe\Reader 9.0\Reader\AcroRd32.exe";
openpdf.StartInfo.Arguments = @"/a ""page=3"" c:\testpdf.pdf";
openpdf.StartInfo.CreateNoWindow = false;
openpdf.Start();
}
调用虚拟键盘
void btnNumKB_Click(System.Object sender, System.EventArgs e)
{
IKeyboardHelper helper = new Neo.ApplicationFramework.Common.Keyboard.KeyboardHelperCF();
helper.ShowNumericKeyboard(new Rectangle(0, 0, 0, 0));
}
void btnFullKB_Click(System.Object sender, System.EventArgs e)
{
IKeyboardHelper helper = new Neo.ApplicationFramework.Common.Keyboard.KeyboardHelperCF();
helper.ShowFullKeyboard(new Rectangle(0, 0, 0, 0));
}
生成要打印的图片
int width, height;
width = System.Windows.Forms.SystemInformation.PrimaryMonitorSize.Width;
height = System.Windows.Forms.SystemInformation.PrimaryMonitorSize.Height;
try
{
Bitmap printscreen = new Bitmap(width, height);
Graphics graphics = Graphics.FromImage(printscreen as Image);
graphics.CopyFromScreen(0, 0, 0, 0, printscreen.Size);
printscreen.Save(@"C:\Printscreen.jpg", ImageFormat.Jpeg);
}
catch (Exception ex)
{
MessageBox.Show("Error: "+ex.ToString());
}
通过脚本打印图片
using System.Diagnostics
void btnPrint_Click(System.Object sender, System.EventArgs e)
{
Process printJob = new Process();
printJob.StartInfo.FileName = "C:\\Printscreen.jpg";
printJob.StartInfo.UseShellExecute = true;
printJob.StartInfo.Verb = "print";
printJob.Start();
printJob.WaitForExit(5000);
printJob.CloseMainWindow();
printJob.Close();
}
WPF旋转
using System.Windows.Media;
using System.Windows;
public partial class Effects
{
public void ApplyAnimation(object control, int angle)
{
FrameworkElement element = control as FrameworkElement;
// If the element wasn't a FrameworkElement, abort.
if(element == null)
return;
RotateTransform rotateTransform = new RotateTransform(angle);
element.RenderTransform = rotateTransform;
}
}
写数据库的内容到CSV文件
using (StreamWriter sw = new StreamWriter("C:\\test.csv", false, System.Text.Encoding.Default))
{
int numberOfColumns = dt.Columns.Count;
for (int i = 0; i < numberOfColumns; i++)
{
sw.Write(dt.Columns[i]);
if (i < numberOfColumns - 1)
sw.Write(";");
}
sw.Write(sw.NewLine);
foreach (DataRow dr in dt.Rows)
{
for (int i = 0; i < numberOfColumns; i++)
{
sw.Write(dr[i].ToString());
if (i < numberOfColumns - 1)
sw.Write(";");
}
sw.Write(sw.NewLine);
}
}
