C# 封装首页、上一页、下一月、尾页处理器

 public void BtnPageClickEvent(object sender,string focusForeground,string lostFocusForeground)
         {
             Button btn = (Button)sender;
             string btnContent = btn.Content as string;
             if (btn.Focus())
             {
                 btn.Foreground = new SolidColorBrush((Color)ColorConverter.ConvertFromString(focusForeground));
             }
             btn.LostFocus += delegate
             {
                 btn.Foreground = new SolidColorBrush((Color)ColorConverter.ConvertFromString(lostFocusForeground));
             };
             switch (btnContent)
             {
                 case "首页":
                     {
                         PagedHelper.PageIndex = ;
                         this.DGAlertInfos.ItemsSource = PagedHelper.GetPagedData(AlertLists, , PagedHelper.PageSize).ToList();
                         break;
                     }
                 case "上一页":
                     {
                         if (PagedHelper.PageIndex != )
                         {
                             PagedHelper.PageIndex--;
                         }
                         if (PagedHelper.PageIndex <= )
                         {
                             this.DGAlertInfos.ItemsSource = PagedHelper.GetPagedData(AlertLists, , PagedHelper.PageSize).ToList(); ;
                         }
                         else
                         {
                             this.DGAlertInfos.ItemsSource = PagedHelper.GetPagedData(AlertLists, (PagedHelper.PageIndex - ) * PagedHelper.PageSize, PagedHelper.PageSize).ToList();
                         }
                         break;
                     }
                 case "下一页":
                     {
                         if (PagedHelper.PageIndex != PagedHelper.PageCount)
                         {
                             PagedHelper.PageIndex++;
                         }
                         if (PagedHelper.PageIndex >= PagedHelper.PageCount)
                         {

                             this.DGAlertInfos.ItemsSource = PagedHelper.GetPagedData(AlertLists, PagedHelper.PageSize * (PagedHelper.PageCount - ), PagedHelper.PageSize).ToList();
                         }
                         else
                         {
                             this.DGAlertInfos.ItemsSource = PagedHelper.GetPagedData(AlertLists, (PagedHelper.PageIndex - ) * , PagedHelper.PageSize).ToList();
                         }
                         break;
                     }
                 case "尾页":
                     {
                         PagedHelper.PageIndex = PagedHelper.PageCount;
                         this.DGAlertInfos.ItemsSource = PagedHelper.GetPagedData(AlertLists, PagedHelper.PageSize * (PagedHelper.PageCount - ), PagedHelper.PageSize).ToList();
                         break;
                     }
                 default:
                     {

                         break;
                     }
             }
         }

使用：

 private void BtnPageClick(object sender, RoutedEventArgs e)
         {
             BtnPageClickEvent(sender, "#007CF1", "#4D4D4D");
         }