RadioButton.Checked Error: Control.Checked cannot appear on the left hand side of += or -=

Question

I am having the strangest problem, and I have to be missing something.

Here is my code that is causing the error.

if (radLot.Checked == true)
{
    S         


        

Answer 1

Checked is the name of the event that is raised when a ToggleButton is checked. (The RadioButton class derives from ToggleButton.)

I assume you want to access the IsChecked property, which gets (or sets) whether the ToggleButton is checked.

if (radLot.IsChecked == true)
{
    SymbolSpecification = "LotRenderer";
}

Hint: Most boolean properties related to the visual state start with Is— in WPF.