CODEWITHSUNDEEP
c#winforms
Pooja
Pooja

Reputation: 11

Hide button of same GUI from another button in C#

I have one form (say form1) that has 2 buttons (say button1 & button2). When I click on button2 the same form i.e form1 should open but the condition is when form1 opens for the second time both button1 & button2 should get hide. How do I do that?

Upvotes: 0

Views: 225

Answers (2)

Mong Zhu
Mong Zhu

Reputation: 23732

You could create a static instance counter and increment it in the constructor. If this counter exceeds 1 then hide the buttons in the constructor:

public static int InstanceCount = 0;

public Form1()
{
    InstanceCount++;
    InitializeComponent();
    if (InstanceCount > 1)
    {
        this.button1.Hide();
        this.button2.Hide();
    }
}

You could then reverse the process in the closing event and count backwards each time a Form1 is closed:

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
     InstanceCount--;
}

Upvotes: 0

Dmitry Egorov
Dmitry Egorov

Reputation: 9650

Simply hide both buttons when instantiating the form for the second time:

private void button2_Click(object sender, EventArgs e)
{
    var secondForm1 = new Form1();
    secondForm1.button1.Hide();
    secondForm1.button2.Hide();
    secondForm1.Show();
}

Upvotes: 2

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