code/Controls/Serial.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;

namespace Sylloge.Controls
{
    public partial class Serial : UserControl
    {
        #region Events

        public delegate void DelegateComPortChanged(SerialPort port);
        public event DelegateComPortChanged ComPortChanged;
        public delegate void DelegateBaudChanged(int baudRate);
        public event DelegateBaudChanged BaudChanged;

        private void OnComPortChanged()
        {
            if (this.ComPortChanged != null) { this.ComPortChanged(this.Port); }
        }

        private void OnBaudChanged()
        {
            if (this.BaudChanged != null) { this.BaudChanged(this.BaudRate); }
        }

        #endregion

        #region Class Methods and Properties

        public Serial()
        {
            InitializeComponent();
            foreach (string Port in System.IO.Ports.SerialPort.GetPortNames()) {
                this.c_ComboBoxComPort.Items.Add(Port);
            }
            if (this.c_ComboBoxComPort.Items.Count == 0) {
                this.c_ComboBoxComPort.Items.Add("NULL");
            }
            this.c_ComboBoxComPort.SelectedIndex = 0;
            this.c_ComboBoxBaudRate.SelectedIndex = 5;
        }

        #endregion

        #region Control Event Handlers

        public SerialPort Port
        {
            get
            {
                return new SerialPort(this.c_ComboBoxComPort.SelectedItem.ToString());
            }
            set
            {
                if (value != null) {
                    for (int i = 0; i < this.c_ComboBoxComPort.Items.Count; i++) {
                        if (this.c_ComboBoxComPort.Items[i].ToString().ToLower() == value.PortName.ToLower()) {
                            this.c_ComboBoxComPort.SelectedIndex = i;
                            return;
                        }
                    }
                }
                if (this.c_ComboBoxComPort.Items.Count > 0) {
                    this.c_ComboBoxComPort.SelectedIndex = 0;
                }
            }
        }

        public int BaudRate
        {
            get
            {
                int Value = 9600;
                if (!this.DesignMode && this.c_ComboBoxBaudRate != null && this.c_ComboBoxBaudRate.SelectedItem != null) {
                    Value = (int)this.c_ComboBoxBaudRate.SelectedItem; ;
                }
                return Value;
            }
            set
            {
                this.c_ComboBoxBaudRate.SelectedIndex = 5;
                if (!this.DesignMode) {
                    for (int Index = 0; Index < this.c_ComboBoxBaudRate.Items.Count - 1; Index++) {
                        if (Convert.ToInt32(this.c_ComboBoxBaudRate.Items[Index]) == value) {
                            this.c_ComboBoxBaudRate.SelectedIndex = Index;
                            break;
                        }
                    }
                }
            }
        }

        private void c_ComboBoxComPort_SelectedIndexChanged(object sender, EventArgs e)
        {
            this.OnComPortChanged();
        }

        private void c_ComboBoxBaudRate_SelectedIndexChanged(object sender, EventArgs e)
        {
            this.OnBaudChanged();
        }

        #endregion
    }
}