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  1. using System;
  2. using System.Collections.Generic;
  3. using System.ComponentModel;
  4. using System.Data;
  5. using System.Drawing;
  6. using System.Linq;
  7. using System.Text;
  8. using System.Windows.Forms;
  9.  
  10. namespace WindowsFormsApplication1
  11. {
  12.     public partial class Form1 : Form
  13.     {
  14.         public Form1()
  15.         {
  16.             InitializeComponent();
  17.         }
  18.  
  19.         private void button1_Click(object sender, EventArgs e)
  20.         {
  21.             Label label = new Label();
  22.             Form form = new Form();
  23.             form.Controls.Add(label);
  24.             form.Show();
  25.             form.TopLevel = false;
  26.             form.FormBorderStyle = FormBorderStyle.None;
  27.  
  28.             TabPage tab = new TabPage();
  29.             tab.Controls.Add(form);
  30.             tabControl1.TabPages.Add(tab);
  31.             form.Dock = DockStyle.Fill;
  32.             label.Text = "" + tabControl1.TabPages.Count;
  33.         }
  34.     }
  35. }
  36.  
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https://ideone.com/aTmF1F
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

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