CODEWITHSUNDEEP
c#.netwinforms
Sdp
Sdp

Reputation: 192

Opening and Closing Forms

I have three forms mainForm, LoginForm and AdminForm. on clicking on a menu item on mainForm it opens LoginForm (using ShowDialog) . I want to open AdminForm on providing login details correctly but don't want to close mainForm.

used this code on Loginform to open AdminForm 

this.Hide();
AdminForm adminform = new AdminForm();
adminform.ShowDialog();
this.Close();

What it does is, displays adminForm separately. Main form focuses out, I want adminForm to appear as dialog on mainForm as it does when opening LoginForm from MainForm.

Upvotes: 0

Views: 94

Answers (3)

Pepernoot
Pepernoot

Reputation: 3609

If you want to show admin form in your current form this should work. You can't show a dialog inside your own form but Show should work fine

this.IsMdiContainer = true;
AdminForm adminform = new AdminForm();
adminform.MdiParent = this;
adminform.Show();

Upvotes: 0

Nop
Nop

Reputation: 151

When you use ShowDialog you need to pass in the parent form. So you should do loginForm.ShowDialog(this), then you can do adminForm.ShowDialog(Owner).

Upvotes: 0

adv12
adv12

Reputation: 8551

You'll have to show AdminForm from MainForm after LoginForm closes. You can use LoginForm.DialogResult to signal to MainForm whether login was successful.

// in LoginForm, when login is successful:
this.DialogResult = DialogResult.OK;

// in MainForm:
LoginForm lf = new LoginForm();
DialogResult r = lf.ShowDialog(this);
if (r == DialogResult.OK)
{
    AdminForm adminform = new AdminForm();
    adminform.ShowDialog(this);
}

Upvotes: 2

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