DataGrid基础应用

自动分页:AllowPaging= TRUE!!!!

     private void dgCategory_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)

         {

              dgCategory.CurrentPageIndex=e.NewPageIndex;

              dgCategory.DataBind();

         }

排序:默认按“PKId”排序

private void dgCategory_SortCommand(object source, System.Web.UI.WebControls.DataGridSortCommandEventArgs e)

         {

              string SortOrder=e.SortExpression.ToString();

              BindData(SortOrder);

         }

 

private void BindData(string SortOrder)

         {

              ProductSystem productSys=new ProductSystem();

              CategoryData  categorySet=productSys.GetCategories(1);

              DataView      categoryView=categorySet.Tables[CategoryData.CATEGORIES_TABLE].DefaultView;

            categoryView.Sort=SortOrder;

   

              lblTitle.Text=""+SortOrder+"排序";

              dgCategory.DataSource=categoryView;

              dgCategory.DataBind();

         }

private void Page_Load(object sender, System.EventArgs e)

         {

              BindData("PKId");

         }

编辑,更新,取消:

private void dgCategory_EditCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)

         {

              dgCategory.EditItemIndex=e.Item.ItemIndex;

              BindData("PKId");

         }

         private void dgCategory_CancelCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)

         {

              dgCategory.EditItemIndex=-1;

              BindData("PKId");

         }

private void dgCategory_UpdateCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)

         {

              string strUpdate="";

              strUpdate+="PKId='"+((TextBox)e.Item.Cells[1].Controls[0]).Text+"'";

              strUpdate+="ParentId='"+((TextBox)e.Item.Cells[2].Controls[0]).Text+"'";

              strUpdate+="Description='"+((TextBox)e.Item.Cells[3].Controls[0]).Text+"'";

              strUpdate+="IsLeaf='"+((TextBox)e.Item.Cells[4].Controls[0]).Text+"'";

 

              try

              {

                   CagegorySet.ExecuteUpdate(strUpdate);//需要后台提供更新的接口

                   dgCategory.EditItemIndex=-1;

              }

              catch

              {

                   Response.Write("<script language='javascript'>alert('未能完成更新,请…………')</script>");

              }

              BindData("PKId");

         }

private void dgCategory_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)

         {

              //获得关键字,使用DataKeys集合访问数据列表控件中每个记录的键值(显示为一行)

              //使得用户可以存储键字段而无需在控件中显示它

              string PKId=dgCategory.DataKeys[e.Item.ItemIndex];

              CategorySet.ExecuteDelete(PKId);

         }*/

 



本文转自 august 51CTO博客,原文链接:http://blog.51cto.com/august/6966,如需转载请自行联系原作者

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