How to change background color of UIButton in Monotouch

Question

I am newbie to Monotouch and have added the following code to my SingleViewApplication. And you can see my controller code below, where I am trying to change the background

Answer 1

I am also face this problem but i solve this issue hope this code is help you

public static class SwapUIButtonColor
{
    #region prop
    public static UIButton PreviousButton {
    get
    {
        return _previousButton
    }
    set
    {
        _previousButton = value;
    }
}
public static UIButton CurrentButton 
{
    get
    {
        return _currentButton;
    }
    set
    {
        _currentButton = value;
    }
}
public static bool SwapColor (UIButton sender, bool isPrevBakGraound)
{
    if (isPrevBakGraound == false)
    {
        InitApplyColorBorder (sender);
        SwapUIButtonColor.PreviousButton = sender;
        return true;
    }
    else
    {
        if (SwapUIButtonColor.PreviousButton != sender)
        {
            InitApplyColorBorder (sender);
            SwapUIButtonColor.CurrentButton = PreviousButton;
            PreviousButton = sender;
            SwapUIButtonColor.CurrentButton.Layer.BorderColor = (UIColor.Black).CGColor;
            SwapUIButtonColor.CurrentButton.Layer.BorderWidth = 0f;
            SwapUIButtonColor.CurrentButton.Layer.CornerRadius = 0f;    
        }
        else if (SwapUIButtonColor.PreviousButton == sender)
        {
            InitApplyColorBorder (sender);
            SwapUIButtonColor.PreviousButton = sender;  
        }
        return true;
    }
}
static void InitApplyColorBorder (UIButton sender)
{
    sender.Layer.BorderColor = (UIColor.Red).CGColor;
    sender.Layer.BorderWidth = 1.0f;
    sender.Layer.CornerRadius = 10f;
}

Also from ViewDidload Method Call this above method on UIButton Click events

private bool isPrevBakGraound = false;  
isPrevBakGraound = SwapUIButtonColor.SwapColor (btnReset, isPrevBakGraound);