线程UI同步

时间:2023-12-27 13:43:19

只用一次:

 this.Invoke(new MethodInvoker(() => { this.btnGo.Enabled = true; MessageBox.Show("Yeah ! "); }));

 或

 Invoke(new Action(
() =>
{
this.button2.Text = "bbb";
})
);

  

 

譬如设置控件的文本, 可以统一封装

 private void SetControlText2(Control c, string text)
{
if (c.InvokeRequired)
{
this.Invoke(new MethodInvoker(delegate() { SetControlText2(c, text); }), c, text);
}
else
{
c.Text = text; ; }
}

上面这是简易的写法,要写成下面这种也可以;

 private delegate void SetControlTextCallBack(Control c, string text);
private void SetControlText(Control c,string text)
{
if (c.InvokeRequired)
{
this.Invoke(new SetControlTextCallBack(SetControlText), c,text);
}
else
{
c.Text = text; ;
// btnTest.Text =bool( o);
}
}

使用Action写法:

 private Action<Control, string> SetText;

//赋值:
SetText = (c, s) =>
{
if (this.InvokeRequired)
{
Invoke(SetText,c,s);
}
else
{
c.Text = s;
}
};
//调用:
ThreadStart t = new ThreadStart(() => { SetText(button2, "aaa"); });