conversion of local variable

Question

Respected members
plz help, i am struck on it very badly , i have one string data (local variable) i want to convert it into class sytem,string (represent text as a series of unicode character ) how i can do that?

thanks in advance

Sam Hobbs · Answer

For what it is worth, I think there is another thread with this same question; I think it is continuation of a thread in which Vulpes answered the questiont then the thread continued to this question. So if I am correct then Vulpes has also been trying to help.

Guest User · Answer

Your local string is already Unicode. You need to set the Unicode encoding for the _serialPort object as I explained earlier.

deepender singla · Answer

but my hardware will work only for unicode string how i can convert my data string local variable to string which is unicode, thats the main issue.

Guest User · Answer

A literal is a hardcoded string. A variable points to a string. You can pass either one to the _serialPort.Write method.

deepender singla · Answer

in my view this might be an issue , how i can overcome this: The reason why there's a slight difference in intellisense is that 'data' is a string variable but "#3 P1546 \r" is a string literal.

Guest User · Answer

String objects are already in Unicode. If you want to transmit/receive Unicode over a serial port, you need to set the encoding for the port instance: port.Encoding = new System.Text. UnicodeEncoding ();

deepender singla · Answer

no hardware is not showing any movement with this when i checked this: Respected member when i use this Console.Writeline(data=="#3 P1500 \r"); i am getting false so how i convert data into that form

Guest User · Answer

What do you mean by "not working"? Are you getting an error?

deepender singla · Answer

but it is not working u see my whole problem: initally i am getting data value serially from one hardware using this code and storing it in a text file: #region Namespace Inclusions using System; using System.IO.Ports; using System.Windows.Forms; #endregion namespace SerialPortExample { class SerialPortProgram { // Create the serial port with basic settings private SerialPort port = new SerialPort("COM4", 9600, Parity.None, 8, StopBits.One); [ STAThread] static void Main(string[] args) { // Instatiate this class new SerialPortProgram(); } private SerialPortProgram() { Console.WriteLine("Incoming Data:"); // Attach a method to be called when there // is data waiting in the port's buffer port.DataReceived += new SerialDataReceivedEventHandler(port_DataReceived); // Begin communications port.Open(); // Enter an application loop to keep this thread alive Application.Run(); } private void port_DataReceived(object sender, SerialDataReceivedEventArgs e) { // Show all the incoming data in the port's buffer string data = port.ReadExisting(); Console.WriteLine(data); System.IO.File.WriteAllText("C://Users//intel//Documents//Visual Studio 2010//Projects//ConsoleApplication2//serialdata.txt", data); port.Close(); } } } then in my second application i am reading the data and using it in this application to trasfer it to other hardware serially for that i am using this code using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO.Ports; using System.Threading; namespace cConsoleAppMonitorServoCompletion { class Program { static SerialPort _serialPort; static void Main(string[] args) { _serialPort = new SerialPort("COM1",115200,Parity.None,8,StopBits.One); _serialPort.Open(); string data = System.IO.File.ReadAllText("C://Users//intel//Documents//Visual Studio 2010//Projects//ConsoleApplication2//serialdata.txt"); Console.WriteLine(data); data.ToString(); Thread.Sleep(200); _serialPort.Write(data); Thread.Sleep(10); _serialPort.Close(); } } } now this is not working but if i write _serialPort.Write("#3 P1200 \r"); my hardware is working i dont know what is the problem even though my data is this #3 P1200 \r

Guest User · Answer

There's no need to convert. string myText; is the same as System.String myText;

conversion of local variable

Answers (10)