Hello,

I'm trying to change the color of the RadioButtons in a OptionSet. Therefore I use the DrawElement-Method, in which I want to get to know the state of the radioButton (if Mouse is Over or the element is pressed). For this I use drawParams.Element and the different "Is..."-Properties. For "IsMouseOver" it works fine. I get back true and can draw the element in the appropriate color, but for the otherones (IsMouseDownAndOver, IsPressed etc.) I always get back false.

Is there better way to detect in which state the RadioButton is? Or can anyone tell me way I always get back false?

I also tried to use the ButtonState Property but it also gives wrong states back.

Here is the code I used (Colors and Forms are just for exercise ;) ):

public DrawPhase GetPhasesToFilter(ref UIElementDrawParams drawParams)

{

if (drawParams.Element is Infragistics.Win.OptionSetOptionButtonUIElement)

return Infragistics.Win.DrawPhase.BeforeDrawElement;

return Infragistics.Win.DrawPhase.None;

}

public bool DrawElement(DrawPhase drawPhase, ref UIElementDrawParams drawParams)

{

Rectangle elementRect = drawParams.Element.RectInsideBorders;

var elementToDraw = drawParams.Element as OptionSetOptionButtonUIElement;

drawParams.Graphics.FillEllipse(new SolidBrush(Color.Yellow), elementRect);

if(elementToDraw.IsMouseOver)

{

drawParams.Graphics.DrawEllipse(new Pen(Color.Orange), elementRect);

}

else if(elementToDraw.IsMouseDownAndOver)

{

drawParams.Graphics.FillEllipse(new SolidBrush(Color.GreenYellow), elementRect);

}

else if (elementToDraw.IsMouseDown)

{

drawParams.Graphics.FillEllipse(new SolidBrush(Color.DarkCyan), elementRect);

}

else if (elementToDraw.IsPressed)

{

drawParams.Graphics.FillEllipse(new SolidBrush(Color.DeepPink), elementRect);

}

else if (elementToDraw.IsStateButtonDown)

{

drawParams.Graphics.FillEllipse(new SolidBrush(Color.DeepSkyBlue), elementRect);

}

return true; //If returns true all other drawPhases will be skipped --> In Case DrawPhase = BeforeDrawElement nothing but what we did will be drawn

}

}