// Virtual method to raise event to observers
protected virtual void OnDataDownloaded(DataDownloadEventArgs e)
{
var handler = DataDownloaded;
if (handler != null)
{
handler(this, e);
}
}
// Change btnDisplayData_Click to the following:
private void DisplayData(object sender, DataDownloadEventArgs e)
{
// insert remaining code from btnDisplayData_Click
}
