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我正在重組實踐項目以轉換爲n層和麪向對象,並且我遇到了一些障礙。我有7個產品,每個產品都有多個字段,提交的產品可能有0-7個產品(沒有冗餘實例)。我將所有產品的所有字段數據與相關提交標識存儲在列表中,這是提交對象內的嵌套對象。所有這一切說,我如何從這個列表中拉出特定的領域,並與他們加載我的網頁上的標籤?完整的db數據行列表;如何將字段加載到標籤?
示例:使用Id 109提交產品EPL,並且一個字段Coverage的值爲800.我希望標籤LblEplCov包含該值。下面的代碼。產品
數據層
SqlCommand FidCmd = new SqlCommand(FiduciaryQuery, conn);
SqlDataReader FidRead = new SqlDataReader();
FidRead = FidCmd.ExecuteReader();
Fiduciary TempFid = new Fiduciary();
TempFid.Entity1 = FidRead.GetString(0);
TempFid.PrimEx1 = FidRead.GetInt32(1);
TempFid.Limit1 = FidRead.GetInt32(2);
TempFid.SIR1 = FidRead.GetInt32(3);
TempFid.Att1 = FidRead.GetInt32(4);
TempFid.Premium1 = FidRead.GetInt32(5);
TempFid.Sublim1 = FidRead.GetInt32(6);
TempProdList.Add(TempFid);
SqlCommand CrimeCmd = new SqlCommand(CrimeQuery, conn);
SqlDataReader dr = null;
List<Product> lstProduct = new List<Product>();
dr = CrimeCmd.ExecuteReader();
CrimeFidelity TempCrime = new CrimeFidelity();
TempCrime.Entity1 = dr.GetString(0);
TempCrime.Employees1 = dr.GetInt32(1);
TempCrime.PrimEx1 = dr.GetInt32(2);
TempCrime.LimA1 = dr.GetInt32(3);
TempCrime.DedA1 = dr.GetInt32(4);
TempCrime.PremA1 = dr.GetInt32(5);
TempCrime.LimB1 = dr.GetInt32(6);
TempCrime.DedB1 = dr.GetInt32(7);
TempCrime.PremB1 = dr.GetInt32(8);
TempProdList.Add(TempCrime);
return TempProdList;
業務層
public static class ProductService
{
public static List<Product> getProductById(string x)
{
return ProductDatabaseLayer.GetProductsById(x);
}
}
表示層
Submission sub = SubmissionService.getSubmissionByID(x);
Customer cust = CustomerService.getCustomerById(sub.CustomerId1.ToString());
Broker bro = BrokerService.getBrokerById(sub.BrokerId1.ToString());
sub.Products1 = ProductService.getProductById(sub.SubmissionId1.ToString());
//注意:我想我會使用if!null塊來確定產品是否附加到提交,但如果有更好的方法可以隨意提及它。