winform非主线程界面, 非主线程修改界面

方法1:

使用lamda表达式

this.lblFixStatus = new System.Windows.Forms.Label();

if(lblFixStatus.InvokeRequired)
{
    lblFixStatus.Invoke(new Action(() => lblFixStatus.Text = dir));
}
else
{
    this.lblFixStatus.Text = dir;
}

 

方法2:

使用委托

this.lblFixStatus = new System.Windows.Forms.Label();
//定义委托
public delegate void UpdateProcess(string txt);
private UpdateProcess updateLabelText

public winform类构造函数()
{
    updateLabelText += new UpdateProcess(UpdatelblStatus);
}

private void UpdatelblStatus(string txt)
{
    lblFixStatus.Text = txt;
}

//子线程调用
lblFixStatus.Invoke(updateLabelText, "状态正常");