private void btnQuery_Click(object sender, System.EventArgs e)
        {
            Session.Remove("QUERY");

            Hashtable htapp   = (Hashtable)Application["appconf"];
            string    strcons = (string)htapp["cons"];

            msb1 = new MaterialSBusi(strcons);
            try
            {
                DataTable dtout = msb1.GetMaterialsStorageCurrent(this.ddlMaterialType.SelectedValue);
                if (dtout == null)
                {
                    this.SetErrorMsgPageBydir("查询出错,请重试!");
                    btnExcel.Enabled = false;
                    return;
                }
                else
                {
                    dtout.TableName = "原材料结存报表";
                    this.TableConvert(dtout, "原材料类型", "tbNameCodeToStorage", "vcCommSign='MaterialType'");
                    DataTable dtexcel = dtout.Copy();
                    Session["QUERY"] = dtout;
                    //					for(int i=0;i<dtexcel.Rows.Count;i++)
                    //					{
                    //						dtexcel.Rows[i][0]="'"+dtexcel.Rows[i][0].ToString();
                    //					}
                    Session["toExcel"] = dtexcel;

                    if (dtout.Rows.Count <= 0)
                    {
                        btnExcel.Enabled = false;
                    }
                    else
                    {
                        btnExcel.Enabled = true;
                    }
                }
                UcPageView1.MyDataGrid.PageSize = 30;
                DataView dvOut = new DataView(dtout);
                this.UcPageView1.MyDataSource = dvOut;
                this.UcPageView1.BindGrid();
            }
            catch (Exception er)
            {
                this.clog.WriteLine(er);
                this.SetErrorMsgPageBydir("查询错误,请重试!");
                return;
            }
        }