/// <summary>
/// 生成串口对象
/// </summary>
/// <returns></returns>
public SerialPort CreateSerialPortObject(string devTag)
{
// 从配置文件读取串口信息
string filePath = Application.StartupPath + "\\XML\\MySettings.xml";
try
{
// 打开XML文件
XmlSerializeHelper <SCommItem, SCommXml> .OpenXmlFile(filePath);
// 读取XML文件
SCommXml xml = XmlSerializeHelper <SCommItem, SCommXml> .ReadXML();
// 获得指定名称的串口信息
SCommItem item = (SCommItem)xml[devTag];
// 校验位转换
Parity parity = ConvertToParity(item.Parity);
// 停止位
StopBits stopBits = ConvertToStopBits(item.StopBits);
// 生成串口
return(new SerialPort(item.Name, item.Baud, parity, item.DataBits, stopBits));
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
private void FormDVSerialPortConfig_Load(object sender, EventArgs e)
{
SCommXml xml = null;
try
{
// 加载系统串口信息
LoadSerialPortItems();
// 读XML文件
xml = OpenSCommXml();
}
catch (Exception ex)
{
MessageUtil.ShowWarning(ex.Message);
return;
}
SCommItem item = (SCommItem)xml["主控串口"];
if (item == null)
{
MessageUtil.ShowTips("无法从配置文件中找到串口信息，使用默认串口COM1");
lblComm.Text = "COM1";
}
else
{
lblComm.Text = item.Name;
}
// 更新界面显示
UpdateUISerialPortInfo(item);
}
/// <summary>
/// 确定
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnOk_Click(object sender, EventArgs e)
{
if (cbxSerialPortNo.Text == "")
{
MessageUtil.ShowTips("请先选择串口号！");
return;
}
// 打开系统配置文件，写入串口配置信息
try
{
// 读XML文件
SCommXml xml = OpenSCommXml();
// 读取当前串口配置
SCommItem item = (SCommItem)xml["主控串口"];
// 更新XML中的串口信息
UpdateXmlSerialPortInfo(item);
XmlSerializeHelper <SCommItem, SCommXml> .WriteXML(xml);
// 更新属性类中的串口信息
UpdatePropertySerialPortInfo(item);
if (MessageUtil.ShowTips("串口设置成功！") == DialogResult.OK)
{
this.Close();
}
}
catch (Exception ex)
{
MessageUtil.ShowWarning(ex.Message);
}
}
/// <summary>
/// 串口信息更新到XML文件
/// </summary>
/// <param name="item"></param>
private void UpdateXmlSerialPortInfo(SCommItem item)
{
// 界面显示
item.Name = cbxSerialPortNo.Text;
item.Baud = Convert.ToInt32(cbxBaud.Text);
item.DataBits = Convert.ToInt32(cbxDataBits.Text);
item.StopBits = cbxStopBits.Text;
item.Parity = cbxParity.Text;
}
/// <summary>
/// 更新界面串口参数显示
/// </summary>
/// <param name="item"></param>
private void UpdateUISerialPortInfo(SCommItem item)
{
// 界面显示
cbxSerialPortNo.Text = item.Name;
cbxBaud.Text = item.Baud.ToString();
cbxDataBits.Text = item.DataBits.ToString();
cbxStopBits.Text = item.StopBits.ToString();
cbxParity.Text = item.Parity;
}
/// <summary>
/// 更新属性类串口信息
/// </summary>
/// <param name="item"></param>
private void UpdatePropertySerialPortInfo(SCommItem item)
{
// 属性类
PropertyHelper.SCommInfo.Tag = item.Tag;
PropertyHelper.SCommInfo.Name = item.Name;
PropertyHelper.SCommInfo.Baud = item.Baud;
PropertyHelper.SCommInfo.DataBits = item.DataBits;
PropertyHelper.SCommInfo.StopBits = item.StopBits;
PropertyHelper.SCommInfo.Parity = item.Parity;
}
