I’m encountering an issue in my C# WinForms application where Visual Studio’s IntelliSense isn’t recognizing a public method in a separate form.

// Main form
public partial class Main : Form
{
    public Main()
    {
        InitializeComponent();
    }

    public void newtab(PictureBox pictureBox, string title)
    {
        // Implementation
    }
}

// Form1
public partial class Form1 : Form
{
    private void button4_Click_1(object sender, EventArgs e)
    {
        Main mainForm = new Main();
        mainForm.newtab(pictureBox1, Untitled.Text);
    }
}