private void SetText(ButtonBase tb, string text)
{
if (tb.InvokeRequired)//如果调用控件的线程和创建创建控件的线程不是同一个则为True
{
while (!tb.IsHandleCreated)
{
//解决窗体关闭时出现“访问已释放句柄“的异常
if (tb.Disposing || tb.IsDisposed)
{
return;
}
}
tb.Invoke(new SetTextBoxText(SetText), new object[] { tb, text });
}
else
{
tb.Text = text;
if (tb == btnStart)
{
tb.Text = text;
if (IsRunning())
{
tb.BackColor = Color.DarkRed;
}
else
{
tb.BackColor = Color.ForestGreen;
}
}
}
}
public static void SetEnabledInvoke(this ButtonBase b, bool v)
{
if (b.InvokeRequired)
{
b.Invoke((MethodInvoker) delegate { b.SetEnabledInvoke(v); });
}
else
{
b.Enabled = v;
}
}
public static void SetTextInvoke(this ButtonBase b, String c)
{
if (b.InvokeRequired)
{
b.Invoke((MethodInvoker) delegate { b.SetTextInvoke(c); });
}
else
{
b.Text = c;
}
}
public static void ResetButtonDefaultColor(ButtonBase control)
{
if (control.InvokeRequired)
{
control.Invoke((MethodInvoker) delegate { ResetButtonDefaultColor(control); });
}
else
{
control.BackColor = default(Color);
control.UseVisualStyleBackColor = true;
}
}
