protected void uiButtonUpdate_Click(object sender, EventArgs e)
 {
     DBLayer db = new DBLayer();
     if (CurrentSection != 0)
     {
         db.UpdateSection(CurrentSection, uiTextBoxEnName.Text, uiTextBoxArName.Text, uiTextBoxDuration.Text);
     }
     else
     {
         db.AddSection(uiTextBoxEnName.Text, uiTextBoxArName.Text, uiTextBoxDuration.Text);
     }
     uiPanelCurrentSections.Visible = true;
     uiPanelCurrent.Visible = false;
     ClearFields();
     BindData();
 }