vs2005 做报表时 提示 无效索引。 (异常来自 HRESULT:0x8002000B (DISP_E_BADINDEX))

[ganysw]

ReportDocument rpDoc = new ReportDocument();
private void GetOrderBasicInfo()
{
GC.Collect();

MOrder MO = new MOrder();
IOrder IO = FOrder.GetIOrder();
MO.f_OrderNo = Request.QueryString["OrderNo"].ToString();
ViewState["OrderNo"] = Request.QueryString["OrderNo"].ToString();
DataTable DT = IO.GetDataTable(PublicClass.DB_RestaurantReservationNet, MO, "V_emooAndV_pmoo", null, null);
if (DT.Rows.Count > 0)
{
rpDoc.Load(Server.MapPath("~/web/Center_MerchantMembers") + "\\CrystalReport3.rpt");
rpDoc.SetDataSource(DT);
SetReportParameter(rpDoc, "f_OrderNo", DT.Rows[0]["f_OrderNo"].ToString());
}

this.rptView.ReportSource = rpDoc;
}
void SetReportParameter(ReportDocument rpt, string paramName, string value)
{
ParameterValues currentParameterValues = new ParameterValues();
ParameterDiscreteValue parmDiscreteValue = new ParameterDiscreteValue();
parmDiscreteValue.Value = value;
currentParameterValues.Add(parmDiscreteValue);
ParameterFieldDefinitions parmFieldDefinitions = rpt.DataDefinition.ParameterFields;
ParameterFieldDefinition parmFieldDef = parmFieldDefinitions[paramName];//这行出错
parmFieldDef.ApplyCurrentValues(currentParameterValues);
}

[bigmingming]

paramName 字段是不是有问题

[Louis-Lv]

问题是纠结这个字段哪里来的。。

[lvfeng19806001]

看着好像没什么错误啊。。