This document discusses various Windows Forms controls in C++.NET including TabPage, ListBox, CheckBox, CheckedListBox, RadioButton, and GroupBox. It provides examples of how to use each control at design time and runtime, how to add, remove, and select items, and how properties like SelectionMode work. Code examples are given for handling events like SelectedIndexChanged and clicking buttons to demonstrate interacting with the different controls programmatically.

1. C++.NET
Windows Forms Course
L04 -Controls Part 3
Mohammad Shaker
mohammadshakergtr.wordpress.com
C++.NET Windows Forms Course
@ZGTRShaker

2. TabPage

3. TabPage (Design Time)
• Design Time …

4. TabPage (Runtime)
• Runtime …

5. TabPage-How to change, add
tabpages?
• At design time …
– Copy paste restrictions

6. TabPage-How to change, add
tabpages?
• If copying and pasting in the selected area like following …
what will happen?

7. TabPage-How to change, add
tabpages?
• If copying and pasting in the selected area like following

8. TabPage-How to change, add
tabpages?
• It should be like here …

9. TabPage-How to change, add
tabpages?
• Now, at Runtime … it looks like …

10. TabPage-changing names

11. TabPage-changing names

12. TabPage-changing names

13. ListBox

14. ListBox (Design time)
• Design time

15. ListBox (Runtime)
• Runtime

16. ListBox

17. ListBox

18. ListBox
• Let’s have the following small project …

19. ListBox

20. ListBox - SelectionMode
• One:
– Can only choose one at a time

21. ListBox - SelectionMode
• MultiSimple:
– No ctrl needed!
• MultiExtended:
– ctrl needed when selecting more that one
– Auto select changing

22. ListBox

23. ListBox - Coding

24. private: System::Void listBox1_SelectedIndexChanged(System::Object^
sender, System::EventArgs^ e)
{
if (listBox1->SelectedIndex == 0)
{
textBox1->Text = "C++ Course is a course about c++!:D";
}
}
What’s will happen now?
What will happen when selecting another option after selecting C++?

25. ListBox - Coding
• It’s a runtime error if selecting nothing and then pressing
button2. Otherwise it works properly.
private: System::Void button2_Click(System::Object^ sender,
System::EventArgs^ e)
{
textBox1->Text =listBox1->SelectedItem->ToString();
}

26. ListBox - Coding
• When changing the course …

27. CheckBox

28. CheckBox
• CheckBoxes
– Set of non-connected controls
– Can choose one or more “checkBox”

29. CheckBox
private: System::Void button1_Click(System::Object^ sender,
System::EventArgs^ e)
{
if (checkBox1->Checked == true )
{
MessageBox::Show("You chose " + checkBox1->Text );
}
}
private: System::Void button1_Click(System::Object^ sender,
System::EventArgs^ e)
{
if (checkBox1->Checked == true )
{
MessageBox::Show("You chose " + “English” );
}
}
private: System::Void button1_Click(System::Object^ sender,
System::EventArgs^ e)
{
if (checkBox1->Checked == true )
{
MessageBox::Show("You chose English” );
}
}

30. CheckBox

31. CheckBox
private: System::Void button1_Click(System::Object^ sender,
System::EventArgs^ e)
{
if (checkBox1->Checked == true )
{
MessageBox::Show("You chose " + sender->ToString() );
}
}

32. CheckBox
private: System::Void button1_Click(System::Object^ sender,
System::EventArgs^ e)
{
if (checkBox1->Checked == true )
{
MessageBox::Show("You chose " + e->ToString() );
}
}

33. CheckedListBox

34. CheckedListBox

35. CheckedListBox
• Set of connected “checkBox”es

36. CheckedListBox

37. CheckedListBox

38. CheckedListBox

39. CheckedListBox

40. CheckedListBox
• Hierarchy …
– System::Object
System::MarshalByRefObject
System.ComponentModel::Component
System.Windows.Forms::Control
System.Windows.Forms::ListControl
System.Windows.Forms::ListBox
System.Windows.Forms::CheckedListBox

41. CheckedListBox
• Let’s have the following code …
private: System::Void button1_Click(System::Object^
System::EventArgs^ e)
{
if (checkedListBox1->SelectedIndex == 1 )
{
textBox1->Text = "WOOOW";
}
}
sender,

45. Why?!

46. CheckedListBox
• The same story goes with this:
private: System::Void button1_Click(System::Object^ sender,
System::EventArgs^ e)
{
if (checkedListBox1->SelectedItem == "French" )
{
textBox1->Text = "WOOOW";
}
}

47. CheckedListBox
• So, we do this:
private: System::Void button1_Click(System::Object^ sender,
System::EventArgs^ e)
{
if (checkedListBox1->GetItemChecked(1) == true)
{
textBox1->Text = "WoW ";
}
}

49. CheckedListBox
• Now, let’s see this:
private: System::Void button1_Click(System::Object^
System::EventArgs^ e)
{
checkedListBox1->Items->Add("Spanish");
}
sender,

51. CheckedListBox
• And ofcourse, we can do this!
private: System::Void button1_Click(System::Object^
System::EventArgs^ e)
{
checkedListBox1->Items->Add(textBox1->Text);
}
sender,

52. CheckedListBox
private: System::Void button1_Click(System::Object^ sender,
System::EventArgs^ e)
{
if (checkedListBox1->Items[0]->ToString() == "English")
{
textBox1->Text = "WoW ";
}
}

53. CheckedListBox

54. RadioButton

56. RadioButton
• “Radio button”s
– Set of related “item”s
– Can choose only one “at a time”

57. RadioButton
• Only one can be chosen at a time

58. RadioButton
private: System::Void button1_Click(System::Object^ sender,
System::EventArgs^ e)
{
if (radioButton1->Checked == true )
MessageBox::Show("I wanna drink some water");
}

59. RadioButton
• So, how to break the restriction and select more than one
radioButton?
There’s sth called the “GroupBox” from “Containers” section.

60. GroupBox

61. GroupBox

62. GroupBox
• Now, we can choose more than one RadioButton
• But we can only choose one RadioButton from “each”
GroupBox.

63. That’s it for today!