C# 12: Forms: List, Check, and Radio Buttons

How to Use List, Check, and Radio Buttons in C# Forms.

List Box

List Box Properties:

• .Text
• .Items
• .SelectedItem
• .SelectedIndex

A List Box as a .SelectedItem property that is indexed. The index defaults to -1, representing an unselected state.

// Perform an action when item is picked
if (myListBox.SelectedIndex != -1)
{
    // do something 
    mySelection = myListBox.SelectedItem.ToString();
}
else
{
    // do something else
}

Radio Button

A Radio button control has a .Checked property that returns true or false.

// Perform an action when button is clicked
if (myRadioButton.Checked)
{
    // do something 
}
else
{
    // do something else
}

Check Box

A Check Box control has a .Checked property that returns true or false.

// Perform an action when box is ticked
if (myCheckBox.Checked)
{
    // do something 
}
else
{
    // do something else
}

Check Changed

A Checked Changed event is raised whenever a Radio Button or Check Box control changes.

QED

© Adam Heinz

6 November 2024