I have a form named: form1 from which I can access two other forms: form2 and form3, with one click:

private void buttonViewEmployee_Click(object sender, EventArgs e)
{
    string refNumber = 123;

    Employee employee = new Employee(refNumber);
    FormViewEmployee viewEmployee = new FormViewEmployee(employee);
    FormViewNewUpdates newUpdates = new FormViewNewUpdates(employee);

    viewEmployee.Show();
    newUpdates.Show();

    this.Hide();
}

Now, from form3 I would like to hide form2 and form3 and go back to form1:

private void buttonBack_Click(object sender, EventArgs e)
{
    FormEditRequests editRequest = new FormEditRequests();
    FormViewEmployee viewEmp = new FormViewEmployee(null);

    viewEmp.Hide();
    this.Hide();

    editRequest.Show();
}

It seems to work but form2 actually just hides itself behind form1 but is still visible.

I tried to debug to see what happens exactly but when I debug, it works as perfect as I want but not when I am not debugging.

I tried to change the order of the code execution and also tried to use:

private void Form1_Load(object sender, EventArgs e)
{
    FormViewEmployee viewEmp = new FormViewEmployee(null);
    base.OnVisibleChanged(e);
    viewEmp.Visible = false;
}

But didn't work either.

Can someone explains what happens during the debug mode that doesn't happen when not debugging?

CodePudding user response：

Try following code:

public static void closeAllOpenedForms()
{
    FormCollection FM = Application.OpenForms;
    if (FM.Count > 1)
    {
        for (int i = (FM.Count); i > 1; i--)
        {
            Form sForm = Application.OpenForms[i - 1];
            sForm.Close();
        }
    }
}

CodePudding user response：

You can check/clone/test this code on

FormViewEmployee, FormViewNewUpdates instances
When click in Close All button it close both instances and show FormMain instance.
2

References

Control.Hide
Form.Close