代码为:
public DataTable dtcar; protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (Request["DealerId"] != null)
{
Session["DealerId"] = Request["DealerId"];
}
tbDealerCar objcar = new tbDealerCar();
dtcar = objcar.GetCar(" and d.dealerid=" + Convert.ToInt32(Request["DealerId"]) + " order by d.id desc");
//分页数据绑定
page pg = new page();
pg.DatalistPage(dltPrice, lblCurPage, lblTotalPage, lnkbtnNext, lnkbtnPast, lnkbtnFirst, lnkbtnLast, "", dtcar);
//==========================================跳转控件的数据源绑定=====================================================//
for (int i = 1; i <= Convert.ToInt32(lblTotalPage.Text); i++)
{
ddlJump.Items.Add(i.ToString());
}
//===================================================================================================================// }
}
在另外一个按钮的代码是:
lblCurPage.Text = Convert.ToString(Convert.ToInt32(lblCurPage.Text) - 1);
page pg = new page();
pg.DatalistPage(dltPrice, lblCurPage, lblTotalPage, lnkbtnNext, lnkbtnPast, lnkbtnFirst, lnkbtnLast, "", dtcar);
打开页面后,按一个那个按钮,出现错误提示:
Object reference not set to an instance of an object.
应该不会出现这种情况啊,不初次加载页面时,不是已经赋初值了吗?请那个指教一下,谢谢了!
public DataTable dtcar; protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
if (Request["DealerId"] != null)
{
Session["DealerId"] = Request["DealerId"];
}
tbDealerCar objcar = new tbDealerCar();
dtcar = objcar.GetCar(" and d.dealerid=" + Convert.ToInt32(Request["DealerId"]) + " order by d.id desc");
//分页数据绑定
page pg = new page();
pg.DatalistPage(dltPrice, lblCurPage, lblTotalPage, lnkbtnNext, lnkbtnPast, lnkbtnFirst, lnkbtnLast, "", dtcar);
//==========================================跳转控件的数据源绑定=====================================================//
for (int i = 1; i <= Convert.ToInt32(lblTotalPage.Text); i++)
{
ddlJump.Items.Add(i.ToString());
}
//===================================================================================================================// }
}
在另外一个按钮的代码是:
lblCurPage.Text = Convert.ToString(Convert.ToInt32(lblCurPage.Text) - 1);
page pg = new page();
pg.DatalistPage(dltPrice, lblCurPage, lblTotalPage, lnkbtnNext, lnkbtnPast, lnkbtnFirst, lnkbtnLast, "", dtcar);
打开页面后,按一个那个按钮,出现错误提示:
Object reference not set to an instance of an object.
应该不会出现这种情况啊,不初次加载页面时,不是已经赋初值了吗?请那个指教一下,谢谢了!
解决方案 »
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