为什么我的datagrid不能自定义分页

Question

//html代码
<asp:datagrid id="DataGrid2" runat="server" Width="320px" AutoGenerateColumns="False" ShowHeader="False"
GridLines="None" AllowCustomPaging="True" PageSize="2" AllowPaging="True" OnPageIndexChanged="DataGrid2_Page">//该事件好象一直没触发义
<Columns>
<asp:TemplateColumn>
<ItemTemplate>
&nbsp;<IMG src="/liu/images/arrow.gif">&nbsp;
</ItemTemplate>
</asp:TemplateColumn>
<asp:HyperLinkColumn Target="_parent" DataNavigateUrlField="pid" DataNavigateUrlFormatString="pshowdetail.aspx?id={0}"
DataTextField="ptitle"></asp:HyperLinkColumn>
<asp:TemplateColumn>
<ItemTemplate>
[
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="ptime" DataFormatString="{0:d}"></asp:BoundColumn>
<asp:BoundColumn DataField="phit"></asp:BoundColumn>
<asp:TemplateColumn>
<ItemTemplate>
<font color="#33ff00">次</font>]
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
<PagerStyle Mode="NumericPages"></PagerStyle>
</asp:datagrid>
 //page_load()
 if(!this.Page.IsPostBack)
{   
this.toptitle.Text="<div align=center><b>查询结果如下:</b></div>";
this.filldate(gj,lx);
this.DataGrid2.VirtualItemCount=((DataTable)this.Session["searchtable"]).Rows.Count;
this.Response.Write(this.DataGrid2.VirtualItemCount);
this.BindGrid();
}
                  //分页事件
protected void DataGrid2_Page(Object sender,DataGridPageChangedEventArgs e) 
{
this.DataGrid2.CurrentPageIndex = e.NewPageIndex;
startIndex = this.DataGrid2.CurrentPageIndex * this.DataGrid2.PageSize;
BindGrid();
}
//绑定
private void BindGrid() 
{
this.DataGrid2.DataSource = CreateDataSource();
this.DataGrid2.DataBind();
} 
                  //设计器支持所需的方法
private void InitializeComponent()
{     this.DataGrid2.PageIndexChanged+=new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid2_Page);

this.Load += new System.EventHandler(this.Page_Load); }

Answer 1

不是OnPageIndexChanged事件是PageIndexChanging事件。
 protected void grdVendors_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        gridView.PageIndex = e.NewPageIndex;
        gridView.DataSource = datasurce;
        gridView.DataBind();
    }

Answer 2

我是效仿这个网页作的
http://msdn.microsoft.com/library/chs/default.asp?url=/library/CHS/cpref/html/frlrfsystemwebuiwebcontrolsdatagridclassallowcustompagingtopic.asp

Answer 3

//另外我把所有代码都添上,看是不是中间有问题!!!!!!!!!!!谢谢了      
  //将Datareader内容写入datatable
private void filldate(string gj,string lx)
{
   DataTable dt=new DataTable();
   dt.Columns.Add(new DataColumn("pid", typeof(Int32)));
   dt.Columns.Add(new DataColumn("ptitle",typeof(string)));
   dt.Columns.Add(new DataColumn("ptime",typeof(string)));
   dt.Columns.Add(new DataColumn("phit", typeof(Int32)));
   sdr=tool.psearch(gj,lx,"psearch");//sdr是通过Datareader读取数据
   while(sdr.Read())
{  
  DataRow dr=dt.NewRow();
      dr[0]=Int32.Parse(sdr["pid"].ToString());
  dr[1]=sdr["ptitle"].ToString();
  dr[2]=Convert.ToDateTime(sdr["ptime"].ToString());
  dr[3]=Int32.Parse(sdr["phit"].ToString());
  dt.Rows.Add(dr);
    }
           sdr.Close();
   this.Session["searchtable"]=dt;
}
//创建数据源
private ICollection CreateDataSource() 
{
DataRow dr;
            DataTable dtnew=new DataTable("currenttable");
DataTable dt=(DataTable)this.Session["searchtable"];
dtnew=dt.Copy();
for (int i = startIndex; i < (startIndex + this.DataGrid2.PageSize); i++) 
{
dr = dtnew.NewRow();
dr[0] = Int32.Parse(dt.Rows[i][0].ToString());
dr[1] = dt.Rows[i][1].ToString();
dr[2] = Convert.ToDateTime(dt.Rows[i][2].ToString());
dr[3] = Int32.Parse(dt.Rows[i][3].ToString());
dtnew.Rows.Add(dr);
}
DataView dv = new DataView(dtnew);
return dv;
}

Answer 4

http://dotnet.aspx.cc/article/b12283de-db20-4322-accc-12724442808a/read.aspx
看看这个

Answer 5

我刚看过了,但他的分页没用到AllowCustomPaging="True"这个属性牙

Answer 6

我试出来了只要在//创建数据源加这些就可以拉
if(this.Page.IsPostBack)
{
for(int i=0;i<dtnew.Rows.Count;i++)
{  
dtnew.Rows.Remove(dtnew.Rows[i]); 
dtnew.Rows.Clear();
dtnew.Dispose();
}
}