16,553
社区成员
发帖
与我相关
我的任务
分享
FormMain
private void frmAClosed(object sender,EventArgs e)
{
btnA.Enabled = true;
}
private void btnA_Click(object sender,EventArgs e)
{
FormA a = new FormA();
a.FormClosed += FormClosed(frmAClosed);
a.show();
btnA.Enabled = false;
}