Question: I have an image with a background color and I'm putting that in a div with the same background color. For some reason I cant save this image as a PNG and have the image bg color show the same as the bg color in the div across all browsers on all operating systems.

At first it looked fine on Windows/Mac in every browser except IE. So I tried using tweakPNG to remove the color profile and gamma properties and that seemed to fix for IE but now I have the issue in Firefox on Linux for some reason?

Any ideas/insight? Thanks

Answer: 
You can subscribe the form to an event raised on the UserControl. 

Your archiecture dictates where and when you need to subscribe to the data event. We can't answer that without knowing a little more about how your whether you are adding the control at runtime or design time. Each case will require a little derivation. From the perspective of adding your control at runtime, you could do something similar to the following:

```
// Your sample control
public class MyUserControl : Control
{
    public event EventHandler<EventArgs> INeedData;
    public Data Data {get; set;}

    private class DoSomething()
    {
        if(INeedData!=null) INeedData(this,null);
    }
}

...

// Your Form, in the case that the control isn't already added.
var _myUserControl = new MyUserControl();
private void Form1_Load(object sender, EventArgs e)
{
    _myUserControl.INeedData += new EventHandler<EventArgs>(MyUserControl_INeedData);
    this.Controls.Add(myUserControl);
}

void MyUserControl_INeedData(object sender, EventArgs e)
{
    _myUserControl.Data = SomeData;
}

```
Seems a bit vague to me, but: 

Make it an event in the containing WinForm, so that every time some data is ready all the subscribers can be notified in a one-to-many model; or make it an event in the subscribed control, in a one-to-one model, in which it calls the container's method that retrieves such data?