Question

I want my windows form to be loaded first, render its children and all. After that load heavy data in it. This is why I am looking for any event which I could use just after form loading is complete.

Any thoughts on this?

Answer 1

I have never found a better solution than Activated; although that is raised every time the form receives focus – so you need to filter out all the times after the first:

bool _firstActivation = true;
void Form1_Activated(object sender, EventArgs e)
{
    if (_firstActivation)
    {
        _firstActivation = false;
        OnFirstActivation();
    }
}

private void OnFirstActivation()
{

}