解決方法是:給GridView控件添加一個事件PageIndexChanging,並設置GridView的屬性:AllowPaging="True"
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
GridView1.datasource="數據源"; //引用剛纔建立的數據源
GridView1.DataBind();
}