In some UI scenarios, you may want to display the state of a CheckBox (Checked, Unchecked, or Indeterminate) without allowing the user to toggle that state. While many controls have a ReadOnly property, you might find that simply setting a property with that specific name doesn't exist or behave as expected for a standard checkbox toggle.
Solution
To prevent users from changing the value of a CheckBox while still keeping the control enabled and visible, you should set the AutoCheck property to false.
When AutoCheck is disabled, the control no longer automatically toggles its check state in response to user clicks or keyboard interactions. This effectively turns the control into a read-only indicator. You can still update the Checked or CheckState properties programmatically through your code-behind, ensuring the UI reflects the underlying data without permitting unauthorized user modifications.
// Disable automatic toggling to make the control read-only
checkBox1.AutoCheck = false;