c# - 将对象列表传递给 SQL Server 存储过程并使用 asp.net core 插入记录

Question

我正在开发 asp.net 应用程序。我正在使用 ado.net 访问 SQL Server 数据库并执行 CRUD。我想一次性插入多条记录。为此，我在数据库中添加了一个自定义类型和一个存储过程，如下所示:

CREATE TYPE [dbo].[UserTableType] AS TABLE
(
    [FirstName] [nvarchar](100) NULL,
    [LastName] [nvarchar](100) NULL,
    [UserName] [nvarchar](100) NULL,
    [Password] [nvarchar](100) NULL,
    [IsActive] [bit] NULL,
    [IsDeleted] [bit] NULL,
    [CreatedBy] [int] NULL,
    [CreatedAt] [datetime] NULL,
    [UpdatedBy] [int] NULL,
    [UpdatedAt] [datetime] NULL,
    [Email] [nvarchar](100) NULL
)
GO

存储过程是这样的:

CREATE PROCEDURE [dbo].[sp_InsertUser] 
    @UserTableType UserTableType READONLY
AS
BEGIN
    INSERT INTO tblUser
        SELECT * FROM UserTableType
END

在 C# 中，我使用的是这段代码:

public void CreateMultipleUser()
{
    var cs = "Server=.;Database=Clicon;Trusted_Connection=True;";

    using (SqlConnection con = new SqlConnection(cs))
    {
        SqlCommand cmd = new SqlCommand("exec sp_InsertUser @UserTableType", con);            

        var pList = new SqlParameter("@UserTableType", SqlDbType.Structured);
        pList.TypeName = "dbo.UserTableType";
        pList.Value = GetAddUserList();              
        cmd.Parameters.Add(pList);

        con.Open();
        cmd.ExecuteNonQuery();
        con.Close();
    }
}

此函数用于创建 SqlDataRecord 列表并传递给存储过程:

private List<SqlDataRecord> GetAddUserList()
{
    List<SqlDataRecord> datatable = new List<SqlDataRecord>();
    SqlMetaData[] sqlMetaData = new SqlMetaData[11];
    sqlMetaData[0] = new SqlMetaData("FirstName", SqlDbType.VarChar, 100);
    sqlMetaData[1] = new SqlMetaData("LastName", SqlDbType.VarChar, 100);
    sqlMetaData[2] = new SqlMetaData("UserName", SqlDbType.VarChar, 100);
    sqlMetaData[3] = new SqlMetaData("Password", SqlDbType.VarChar, 100);
    sqlMetaData[4] = new SqlMetaData("isActive", SqlDbType.Bit);
    sqlMetaData[5] = new SqlMetaData("isDeleted", SqlDbType.Bit);
    sqlMetaData[6] = new SqlMetaData("CreatedBy", SqlDbType.Int);
    sqlMetaData[7] = new SqlMetaData("CreatedAt", SqlDbType.DateTime);
    sqlMetaData[8] = new SqlMetaData("UpdatedBy", SqlDbType.Int);
    sqlMetaData[9] = new SqlMetaData("UpdatedAt", SqlDbType.DateTime);
    sqlMetaData[10] = new SqlMetaData("Email", SqlDbType.VarChar, 100);
    SqlDataRecord row = new SqlDataRecord(sqlMetaData);

    row = new SqlDataRecord(sqlMetaData);
    row.SetValues(new object[] { "Asif", "hameed", "asif371", "123", true,false,1,DateTime.Now,1,DateTime.Now, "asif1@gmail.com" });
    datatable.Add(row);
    row = new SqlDataRecord(sqlMetaData);
    row.SetValues(new object[] { "Asif1", "hameed1", "asif372", "123", true, false, 1, DateTime.Now, 1, DateTime.Now, "asif2@gmail.com" });
    datatable.Add(row);
    row = new SqlDataRecord(sqlMetaData);
    row.SetValues(new object[] { "Asif2", "hameed2", "asif373", "123", true, false, 1, DateTime.Now, 1, DateTime.Now, "asif3@gmail.com" });
    datatable.Add(row);
    row = new SqlDataRecord(sqlMetaData);
    row.SetValues(new object[] { "Asif4", "hameed4", "asif375", "123", true, false, 1, DateTime.Now, 1, DateTime.Now, "asif5@gmail.com" });

    datatable.Add(row);
    row = new SqlDataRecord(sqlMetaData);
    row.SetValues(new object[] { "Asif5", "hameed4", "asif376", "123", true, false, 1, DateTime.Now, 1, DateTime.Now, "asif6@gmail.com" });

    datatable.Add(row);

    return datatable;
}

但我遇到了这个异常:

An exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.SqlClient.dll but was not handled in user code

Additional information: Invalid object name 'UserTableType'

请提出解决方案。

Answer 1

您是从类型定义中进行选择，而不是从参数中进行选择。试试这个:

CREATE PROCEDURE [dbo].[sp_InsertUser] 
    -- Add the parameters for the stored procedure here
    @UserTableType UserTableType READONLY

AS
BEGIN
    INSERT INTO tblUser
        SELECT * FROM @UserTableType
END