我想从mod bus
协议获取数据并使用标签在Windows窗体中自动显示和更新它。但是我遇到了一个问题,我必须单击按钮来显示更新的数据,而不是标签自动显示。我的代码在下面,有人可以指出我错在哪里以及如何纠正它。非常感谢:))
private void Call() {
do
{
RequestData(); //get data from mod bus
run(a.ToString());
} while (operation);
}
delegate void CallMethod(string Data);
private void run(string data) {
if (this.labelO2.InvokeRequired)
{
SetRichBoxCallBack d = new SetRichBoxCallBack(run);
this.Invoke(d, new object[] { data });
}
else {
labelO2.Text = data;
}
}
Thread thread;
private void button1_Click(object sender, EventArgs e)
{
thread = new Thread(new ThreadStart(Call));
thread.Start();
}
public void RequestData()
{
if (WriteSerialPort(setMessage, 0, 8))
{
Thread.Sleep(1000);
for (i = 0; i < 19; i++)
{
MM[i] = (byte)serialPortBoard.ReadByte();
}
a = MM[11] << 8 | MM[12];
b = (int)MM[13] << 8 | MM[14];
}
}
答案 0 :(得分:0)
用以下内容替换您的代码:
private void run(string data) {
//if (this.labelO2.InvokeRequired)
//{
// SetRichBoxCallBack d = new SetRichBoxCallBack(run);
// this.Invoke(d, new object[] { data });
//}
//else {
// labelO2.Text = data;
//}
this.Invoke(new MethodInvoker(delegate {labelO2.Text = data;}));
}