Inheritance: System.Windows.Forms.UserControl
 //LOAD FORM
 private void ImportQuestionForCatalogue_Load(object sender, EventArgs e)
 {
     txt_Catalogue.Text = NameCat;
     ImportQuestionToQuestionStore iqqs = new ImportQuestionToQuestionStore(IDCat, NameCat);
     pnl_ImportQuestion.Controls.Clear();
     pnl_ImportQuestion.Controls.Add(iqqs);
 }
 //CHECK TO IMPORT FROM EXIST CATALOGUE
 private void rdb_ImportToCatalogue_CheckedChanged(object sender, EventArgs e)
 {
     ImportQuestionToQuestionStore iqqs = new ImportQuestionToQuestionStore(IDCat,NameCat);
     pnl_ImportQuestion.Controls.Clear();
     pnl_ImportQuestion.Controls.Add(iqqs);
 }