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private TextBox txt; private TextBox txt2; private Label lbl; public Form1() { InitializeComponent(); } internal void Form1_Load(object sender, EventArgs e) { Button btn = new Button(); btn.Location = new Point(10, 0); btn.Text = "Hesapla"; btn.Click += btn_Click; this.Controls.Add(btn); // TextBox oluşturma txt = new TextBox(); txt2 = new TextBox(); txt.Location = new Point(0, 30); txt2.Location = new Point(0, 80); this.Controls.Add(txt); this.Controls.Add(txt2); // Label oluşturma lbl = new Label(); lbl.Location = new Point(10, 120); lbl.Text = "Sonuç: "; this.Controls.Add(lbl); } internal void btn_Click(object sender, EventArgs e) { // TextBox'lardan değerleri al double sayi1 = Convert.ToDouble(txt.Text); double sayi2 = Convert.ToDouble(txt2.Text); // Toplama işlemini yap Hesap hesap = new Hesap(); double toplam = hesap.Topla(sayi1, sayi2); // Sonucu Label'a yazdır lbl.Text = "Sonuç: " + toplam.ToString(); } public class Hesap { public double Topla(double t1, double t2) { return t1 + t2; } }
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