C# (CSharp) LuckyDraw_TTS frmListing Exemples

Exemple #1

 private void cmdClose_Click(object sender, EventArgs e)
 {
     if (frmListing != null)
     {
         frmListing.Close();
         frmListing = null;
     }
 }

Exemple #2

 private void cmdShowList_Click(object sender, EventArgs e)
 {
     if (frmListing == null)
     {
         frmListing = new frmListing();
         frmListing.Show();
     }
 }