private bool HasData()
{
int count = 0;
if (firmwareListControl.Firmwares != null)
count += firmwareListControl.Firmwares.Count;
if (controlLanguageListControl.ControlLanguages != null)
count += controlLanguageListControl.ControlLanguages.Count;
if (driverListControl.HardwareItemDescriptionControlDrivers != null)
count += driverListControl.HardwareItemDescriptionControlDrivers.Count;
if (toolsListControl.HardwareItemDescriptionControlTool != null)
count += toolsListControl.HardwareItemDescriptionControlTool.Count;
return count > 0;
}