public static DiagnosisShow_Form CreateInstance()
{
if (_instance == null)
{
lock (lockHelper)
{
if (_instance == null)
{
_instance = new DiagnosisShow_Form();
}
}
}
return(_instance);
}
private void DiagnosisShow_Form_FormClosing(object sender, FormClosingEventArgs e)
{
_instance = null;
}