WIN FORM 多线程更新UI(界面控件)
方法1,更新单个控件:
public delegate void ControlTextMethod(Control control, string text);
private void SetControlText(Control control, string text)
{
if (this.InvokeRequired)
{
ControlTextMethod controlTextMethod = new ControlTextMethod(SetControlText);
this.Invoke(controlTextMethod, new object[] { control, text });
}
else
{
control.Text = text;
}
}
private void SetControlText(Control control, string text)
{
if (this.InvokeRequired)
{
ControlTextMethod controlTextMethod = new ControlTextMethod(SetControlText);
this.Invoke(controlTextMethod, new object[] { control, text });
}
else
{
control.Text = text;
}
}
需要更新控件的Text的地方,直接调用SetControlText方法就可以了。
方法2,使用“UIThread”:
public void UIThread(MethodInvoker method)
{
if (this.InvokeRequired)
{
this.Invoke(method);
}
else
{
method.Invoke();
}
}
public void UpdateUI()
{
this.UIThread(delegate
{
this.Label1.Text = "msg1";
this.Label2.Text = "msg2";
});
}
{
if (this.InvokeRequired)
{
this.Invoke(method);
}
else
{
method.Invoke();
}
}
public void UpdateUI()
{
this.UIThread(delegate
{
this.Label1.Text = "msg1";
this.Label2.Text = "msg2";
});
}
在需要更新界面的地方这么调用:this.UIThread(delegate{this.Label1.Text="msg1";...});。
方法3,在一个方法里集中更新多个控件:
public void UpdateUI()
{
if (this.InvokeRequired)
{
this.Invoke(new MethodInvoker(delegate { UpdateUI(); }));
}
else
{
this.Label.Text = "msg1";
this.Labe2.Text = "msg2";
}
}
{
if (this.InvokeRequired)
{
this.Invoke(new MethodInvoker(delegate { UpdateUI(); }));
}
else
{
this.Label.Text = "msg1";
this.Labe2.Text = "msg2";
}
}