继续获得跨线程错误，无法找出潜在的修复方法 [英] Keep getting cross thread error and cannot figure out a potential fix

问题描述

事件在一个单独的线程中执行，因此我的表单不会被冻结。

event execute in a separate thread so my form is not frozen.

谢谢你。

推荐答案

请阅读  SerialPort类。

SerialPort已在单独的线程上处理通信。不需要额外的后台工作人员。

The communication is already handled on a separate thread by SerialPort. No need for an extra background worker.

只需使用
DataRecieved 事件的SerialPort。这里将数据读入缓冲区并评估此缓冲区。但它在很大程度上取决于您的设备使用的协议类型。例如。类似

Just use the DataRecieved event of SerialPort. Here read the data into a buffer and evaluate this buffer. But it depends strongly on the kind of protocol used by your device. E.g. something like

private SerialPort serialPort;

private void serialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
	this.buffer += this.serialPort.ReadExisting();
	string datagram = this.DequeueDatagram();
	while (datagram != null) {
		this.HandleDatagram(datagram);
		datagram = this.DequeueDatagram();
	}
}

private string DequeueDatagram()
{
	string result = null;
	bool containsDatagram = someLogicTest;
	if (containsDatagram)
	{		
		result = retrieveDatagramFromBuffer;
		this.buffer = removeDatagramFromBuffer;
	}

	return result;
}

private void HandleDatagram(string datagram)
{
	//Do something
}

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