private void button1_Click(object sender, EventArgs e)
{
Form2 frm2 = new Form2();
frm2.FormClosed += new FormClosedEventHandler(frm2_FormClosed);
frm2.Show();//開啟子視窗
this.Hide();//隱藏父視窗
}
void frm2_FormClosed(object sender, FormClosedEventArgs e)
{
this.Show();//子視窗關閉時,父視窗再顯示出來
}
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