C#

Kshitij Bali wrote:

then the application closes. WHy?

private bool isFirstLine = true;
        void DataReceivedHandler(object sender, SerialDataReceivedEventArgs e)
        {
            try
            {
                string dataLine = serialPort1.ReadLine();
                if (dataLine == null || dataLine.Trim().Length == 0)
                {
                    return;
                }



                // Skip the first line
                if (isFirstLine)
                {
                    isFirstLine = false;
                    return;
                }

                // Split data into individual values
                string[] dataValues = dataLine.Split('\t');

                // Update text boxes with corresponding values
                this.Invoke((MethodInvoker)delegate
                {
                    //ClearTextBoxes();
                    textBox2.Text = dataValues[0];
                    textBox3.Text = dataValues[1];
                    textBox4.Text = dataValues[2];
                    textBox5.Text = dataValues[3];
                    textBox6.Text = dataValues[4];
                    textBox7.Text = dataValues[5];
                    textBox8.Text = dataValues[6];
                    textBox9.Text = dataValues[7];
                    textBox10.Text = dataValues[8];
                    textBox11.Text = dataValues[9];
                    textBox12.Text = dataValues[10];
                    textBox13.Text = dataValues[11];
                    textBox14.Text = dataValues[12];
                    textBox15.Text = dataValues[13];
                    textBox16.Text = dataValues[14];
                    textBox17.Text = dataValues[15];
                    // ... and so on for all text boxes


                });
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Message", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            


        }

        private void ClearTextBoxes()
        {
            // Add all your text boxes here
            textBox2.Text = "";
            textBox3.Text = "";
            textBox4.Text = "";
            textBox5.Text = "";
            textBox6.Text = "";
            textBox7.Text = "";
            textBox8.Text = "";
            textBox9.Text = "";
            textBox10.Text = "";
            textBox11.Text = "";
            textBox12.Text = "";
            textBox13.Text = "";
            textBox14.Text = "";
            textBox15.Text = "";
            textBox16.Text = "";
            textBox17.Text = "";
            // ... and so on for all text boxes
        }

        private bool isReadingData = false;
        private void button3_Click(object sender, EventArgs e)
        {
            try
            {
                if (serialPort1.IsOpen)
                {
                    if (!isReadingData)
                    {
                        // Register the data reception handler
                        serialPort1.WriteLine("1");
                        serialPort1.DataReceived += DataReceivedHandler;
                        isReadingData = true;
                        button3.Text = "STOP";
                        button1.Enabled = false;
                        button1.Visible = false;
                    }
                    else
                    {
                        // Unsubscribe from the DataReceivedHandler
                        serialPort1.WriteLine("0");
                        serialPort1.DataReceived -= DataReceivedHandler;

                        // Set the flag to indicate that data reading is stopped
                        isReadingData = false;
                        button3.Text = "START";
                        button1.Enabled = true;
                        button1.Visible = true;
                        ClearTextBoxes();

                    }

                }
                else
                {
                    MessageBox.Show("Error : Port needs to be open or wrong port selected!");
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Message", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

        }

private void button1_Click(object sender, EventArgs e)
        {
            if(serialPort1.IsOpen)
            {
                PortClosing();
                button1.Text = "Open";
                ClearTextBoxes();
                button3.Visible = false;

            }
            else
            {
                PortOpening();
                button1.Text = "Close";
                button3.Visible = true;
            }
        }

Kshitij Bali wrote:

index is out of bounds of the array

public class UnitsServiceViewModel
{
    [Required(ErrorMessage = "You must enter a value.")]
    [RegularExpression("^[0-9]*$", ErrorMessage = "The value must be numeric.")]
    public string Value { get; set; }
}

public class OuterViewModel
{
    public List<UnitsServiceViewModel> Units_Service { get; set; }
    
    internal List<int> Units_Service_Parsed
    {
        get
        {
            if (Units_Service is null) return null;
            
            List<int> value = new(Units_Service.Count);
            foreach (UnitsServiceViewModel vm in Units_Service)
            {
                int.TryParse(vm.Value, out int i);
                value.Add(i);
            }
            
            return value;
        }
        set
        {
            if (value is null)
            {
                Units_Service = null;
            }
            else
            {
                List<UnitsServiceViewModel> list = new(value.Count);
                foreach (int i in value)
                {
                    list.Add(new() { Value = i.ToString() });
                }
                
                Units_Service = list;
            }
        }
    }
}

@for (int i = 0; i < Model.Units_Service.Count; i++)
{
    <div class="row">
        <div class="col-md-3">
            @Html.LabelFor(model => model.Units_Service[i].Value, Model.Workload_Category_Name[i])
        </div>
        <div class="col-md-4">
            @Html.TextBoxFor(model => model.Units_Service[i].Value, new { style = "width: 15%", MaskedTextBox = "9999", inputmode = "numeric" })
            @Html.ValidationMessageFor(model => model.Units_Service[i].Value)
        </div>
    </div>
}

Fokwa Divine wrote:

"^[0-9]*$"

^[0-9]+$