[英]Insert foreign key into database using dapper in c#
I Want to insert into sql table with foreign key in c# using dapper, Here is my code. 我想使用dapper在C#中使用外键插入sql表,这是我的代码。 When I do it this way it gives me a conversion error.
当我这样做时,它给了我一个转换错误。
public class LoanModel
{
public int ID { get; set; }
public CustomerModel CustomerID { get; set; }
public int Amount { get; set; }
public InterestModel Interest { get; set; }
public DateTime Date { get; set; }
}
This is the method that fills the data gridview: 这是填充数据网格视图的方法:
List<LoanModel> Loans = new List<LoanModel>();
public void FillCustomersDataGridview()
{
try
{
DataAccess.ShowLoan(SearchCustomTextBox.Text.Trim());
dataGridView1.DataSource = Loans;
}
catch (Exception ERE)
{
MessageBox.Show($"An error occured: {ERE.Message}");
}
}
This is the method that inserts the data into the database: 这是将数据插入数据库的方法:
public static void GetLoan(int id, int customerID, int amount, int interest, DateTime loanDateDateTimePicker)
{
using (IDbConnection Con = new SqlConnection(Helper.ConnectionString("DatabaseConnection")))
{
LoanModel Loan = new LoanModel { ID = id, CustomerID = customerID, Amount = amount, Interest = interest, Date = loanDateDateTimePicker };
List<LoanModel> newLoan = new List<LoanModel>();
newLoan.Add(Loan);
Con.Execute("spGetLoan @ID, @CustomerID, @Amount, @Interest, @Date", newLoan);
}
}
Why you have pass list to insert data into the database time. 为什么要有通过列表以将数据插入数据库时间。
Your Query 您的查询
List<LoanModel> newLoan = new List<LoanModel>();
newLoan.Add(Loan);
Con.Execute("spGetLoan @ID, @CustomerID, @Amount, @Interest, @Date", newLoan);
Please direct pass only model 请直接通过仅模型
Con.Execute("spGetLoan @ID, @CustomerID, @Amount, @Interest, @Date", Loan);
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