How to Open a New Form and Close the Current Form in C#?

Opening a New Form and Closing the Current Form in C#

When navigating through an application, it may be necessary to open a new form and close the current one. This can be achieved through a series of steps:

Opening a New Form

• From within the current form, create an instance of the new form class.
• Display the new form using the Show() method.

Closing the Current Form

• Before closing the current form, it's recommended to hide it rather than disposing it. This allows for a smooth transition to the new form.
• To hide the current form, use the Hide() method.

Focusing on the New Form

• After the current form is hidden, the new form should be activated and brought to the foreground.
• This can be achieved using the Show() method with the additional parameter false, which specifies that the form should not be activated.
• Subsequently, the Activate() method should be called on the new form to focus on it.

Example Implementation

The following code snippet demonstrates how to open a new form (Form2) and close the current form (Form1) in C# using the steps described above:

private void OnButton1Click(object sender, EventArgs e)
{
    this.Hide();
    var form2 = new Form2();
    form2.Closed += (s, args) => this.Close();
    form2.Show(false);
    form2.Activate();
}

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