Question

我有一个带按钮的Form1。单击该按钮时，此代码块将执行：

Form2 frm = new Form2();
frm.Name = "Form" + musteriNumarasi.ToString();
frm.Text = "Kullanıcı - " + musteriNumarasi.ToString();

让我说我已经点击了三次。现在有四种形式：Main，Child1，Child2，Child3。当用户关闭其中一个子表单时，主表单需要知道哪一个表单已关闭。我怎么能这样做？

Answer 1

订阅Closed Event

Form2 frm = new Form2();    
frm.FormClosed += new FormClosedEventHandler(Form_Closed);

void Form_Closed(object sender, FormClosedEventArgs e)
{
    Form2 frm = (Form2)sender;
    MessageBox.Show(frm.Name);
}

Answer 2

Form2 frm = new Form2();   

frm.FormClosed += new System.Windows.Forms.FormClosedEventHandler(this.frm _FormClosed);

。。

private void frm_FormClosed(object sender, EventArgs e)
{
    //Runs after closing child :)
}

Answer 3

将这些行添加到您的代码中以处理已关闭或关闭表单的事件

frm.Closing += Form_Closing;
frm.Closed += Form_Closed;

将以下方法添加到当前的类

void Form_Closing (object sender,EventArgs e){
//Handler form Closing Event
}
void Form_Closed (object sender,EventArgs e){
//Handler form Closed Event
}

知道儿童表格何时结束

3 个答案: