asp.net上一頁下一頁的部分代碼

 

<asp:linkbutton id="btnFirst" onclick="PagerButtonClick" runat="server"
CommandArgument="0"></asp:linkbutton>&nbsp;
         <asp:linkbutton id="btnPrev" onclick="PagerButtonClick"
runat="server" CommandArgument="prev"></asp:linkbutton>&nbsp;
         <asp:linkbutton id="btnNext" onclick="PagerButtonClick"
runat="server" CommandArgument="next"></asp:linkbutton>&nbsp;
         <asp:linkbutton id="btnLast" onclick="PagerButtonClick"
runat="server" CommandArgument="last"></asp:linkbutton>&nbsp;
         <input class="Show" id="PageText" type="text" onchange="testint();"
size="2" name="PageText"
          runat="server"><asp:button id="PageGO" Runat="server"
Text="Go"></asp:button>

 

後台：

 #region 自訂分頁函數
  //顯示分頁資訊
  public void showstats()
  {
   dt=(DataTable)ViewState["dt"];
   CurPage.Text=Convert.ToString(dgUserList.CurrentPageIndex+1);
   TolPage.Text=Convert.ToString(dgUserList.PageCount);
   ItemCount.Text=dt.Rows.Count.ToString();
  }

  public void PagerButtonClick(object sender,System.EventArgs e)
  {
   LinkButton lbutn= (LinkButton)sender;
   string str =lbutn.CommandArgument;
   switch(str)
   {
    case "next":
     if(dgUserList.CurrentPageIndex<dgUserList.PageCount-1)
      dgUserList.CurrentPageIndex=dgUserList.CurrentPageIndex+1;
     break;
    case"prev":
     if(dgUserList.CurrentPageIndex>0)
      dgUserList.CurrentPageIndex=dgUserList.CurrentPageIndex-1;
     break;
    case"last":
     dgUserList.CurrentPageIndex=dgUserList.PageCount-1;
     break;
    case"0":
     dgUserList.CurrentPageIndex=0;
     break;
   }
   dgUserList.DataSource=(DataTable)ViewState["dt"];
   dgUserList.DataBind();
   showstats();
  }

  private void PageGO_Click(object sender, System.EventArgs e)
  {
   int PageCount;
   if(PageText.Value!="")
   {
    PageCount=Convert.ToInt32(PageText.Value)-1;
    if(PageCount<dgUserList.PageCount && PageCount>=0)
    {
     dgUserList.CurrentPageIndex=PageCount;
     dgUserList.DataSource=(DataTable)ViewState["dt"];
     dgUserList.DataBind();
     showstats();
    }
   }
  }

  #endregion