timer event handling in C# scpi equipment communication

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yefj

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Hello, i have sucsseeded building in visual studio .NET framework a code that sends commands when i press a button as shown bellow.
I want to modify my code so it will send this command every second and to stop sending the command when i press another button.
Google says i should use timer(and event handler), but timer needs static method.
i didn't use "public static void main()" in my code so far and it worked fine.
why in timer we have to use static methods?
Thanks.
Code: 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Timers;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        bool meter_state = false;
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            serialPort1.Open();
            serialPort1.Write("meas:freq:st 500 mhz\n");
            serialPort1.Write("*idn?\n");
            string data = serialPort1.ReadTo("\n");
            textBox1.AppendText(data);
            serialPort1.Close();

        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }
    }
}
 
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yefj said:
why in timer we have to use static methods?
Click to expand...
You don't. There are many ways to implement a timer. You can e.g. use System.Windows.Forms.Timer inside your form. Or read Environment.TickCount to measure time intervals.
 

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Hi,

do you want to run this on a microcontroller? (you posted in the microcontroller section)
Or on a PC under Windows?

Klaus
 

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Hello Klauss,you helped me a lot about a year and a half ago with a lot of patience my steps in I2C SPI UART
currently my goal is to communicate with my spectrum analyzer via C# visual studio with timer events(related subject)
Is it the wrong forum section?
Where its prefereble to post my question?
Thanks
 

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Hello, I am using Visual studio .Net windows forms to program my C# SPCI communication with my device.
I have succsessded in using timer event handling as shown in the results bellow.
Why there is not "public static void main" in this type of programming?
"public static void main" is the basis of every C based program?





Code: 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Timers;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        bool meter_state = false;
        double num2;
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //serialPort1.Write("meas:freq:st 500 mhz\n");
            //serialPort1.Write("*idn?\n");
            //string data = serialPort1.ReadTo("\n");
          
            //serialPort1.Write("meas:ocbw on\n");
            //serialPort1.Write("meas:ocbw:chpw?\n");
            //string data = serialPort1.ReadTo("\n");
            //if ((data != null) && (data[0] !='<'))
            //{
            //    num2 = Convert.ToDouble(data);
            //    textBox1.AppendText(Convert.ToString(num2));
                
            //}

            //serialPort1.Close();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {

            //serialPort1.Open();
        }

        private void button3_Click(object sender, EventArgs e)
        {

            serialPort1.Close();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            serialPort1.Open();
            serialPort1.Write("meas:ocbw on\n");
            serialPort1.Write("meas:ocbw:chpw?\n");
            string data = serialPort1.ReadTo("\n");
            if ((data != null) && (data[0] !='<'))
            {
                num2 = Convert.ToDouble(data);
                textBox1.AppendText(Convert.ToString(num2));

            }
            serialPort1.Close();
        }

        private void button4_Click(object sender, EventArgs e)
        {
            timer1.Enabled = false;
            textBox2.Clear();
            textBox2.AppendText("clock dissabled");
        }

        private void button5_Click(object sender, EventArgs e)
        {
            timer1.Enabled = true;
            textBox2.Clear();
            textBox2.AppendText("clock enabled");
        }
    }
}
 

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