C# asp.net web api c接口数据提供程序
请查看代码,我在调用dataprovider接口时发现了以下错误 错误行:::公共类UserDataProvider:IUserDataProvider 错误文本::“UserDataProvider”未实现接口成员“IUserDataProvider.gettabs” 我会感谢你的 c语言中的webapi代码 接口代码:C# asp.net web api c接口数据提供程序,c#,asp.net,asp.net-web-api,interface,crud,C#,Asp.net,Asp.net Web Api,Interface,Crud,请查看代码,我在调用dataprovider接口时发现了以下错误 错误行:::公共类UserDataProvider:IUserDataProvider 错误文本::“UserDataProvider”未实现接口成员“IUserDataProvider.gettabs” 我会感谢你的 c语言中的webapi代码 接口代码: using System.Collections.Generic; using System.Threading.Tasks; using WebAPIceoTransact
using System.Collections.Generic;
using System.Threading.Tasks;
using WebAPIceoTransaction.Models;
namespace WebAPIceoTransaction.DataProvider
{
public interface IUserDataProvider
{
Task<IEnumerable<TabMain>> Gettabs();
Task<TabMain> Gettab(int fid);
Task Addtab(TabMain Tab);
Task Updatetab(TabMain Tab);
Task DeleteTab(int fid);
}
}
数据提供程序代码:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Dapper;
using Microsoft.EntityFrameworkCore;
using System.Data;
using System.Data.SqlClient;
using WebAPIceoTransaction.Models;
namespace WebAPIceoTransaction.DataProvider
{
public class UserDataProvider : IUserDataProvider
{
private readonly string connectionString = "Server=******;Database=****;Trusted_Connection=True;";
private SqlConnection sqlConnection;
public async Task AddTab(TabMain tabmain)
{
using (var sqlConnection = new SqlConnection(connectionString))
{
await sqlConnection.OpenAsync();
var dynamicParameters = new DynamicParameters();
dynamicParameters.Add("@FName", tabmain.FName);
dynamicParameters.Add("@FCompany", tabmain.FCompany);
dynamicParameters.Add("@FDate", tabmain.FDate);
dynamicParameters.Add("@FAmount", tabmain.FAmount);
dynamicParameters.Add("@FPaid", tabmain.FPaid);
dynamicParameters.Add("@FTransferType", tabmain.FTransferType);
dynamicParameters.Add("@FChequeNo", tabmain.FChequeNo);
dynamicParameters.Add("@FBank", tabmain.FBank);
dynamicParameters.Add("@FAccountNo", tabmain.FAccountNo);
dynamicParameters.Add("@Purpose", tabmain.Purpose);
await sqlConnection.ExecuteAsync(
"spAddTab",
dynamicParameters,
commandType: CommandType.StoredProcedure);
}
}
public async Task DeleteTab(int fid)
{
using (var sqlConnection = new SqlConnection(connectionString))
{
await sqlConnection.OpenAsync();
var dynamicParameters = new DynamicParameters();
dynamicParameters.Add("@Fid", fid);
await sqlConnection.ExecuteAsync(
"spDeleteUser",
dynamicParameters,
commandType: CommandType.StoredProcedure);
}
}
public async Task<TabMain> GetTab(int fid)
{
using (var sqlConnection = new SqlConnection(connectionString))
{
await sqlConnection.OpenAsync();
var dynamicParameters = new DynamicParameters();
dynamicParameters.Add("@fid", fid);
return await sqlConnection.QuerySingleOrDefaultAsync<TabMain>(
"spGetTab",
dynamicParameters,
commandType: CommandType.StoredProcedure);
}
}
public async Task<IEnumerable<TabMain>> GetTabs()
{
using (var sqlConnection = new SqlConnection(connectionString))
{
await sqlConnection.OpenAsync();
return await sqlConnection.QueryAsync<TabMain>(
"spGetTabs",
null,
commandType: CommandType.StoredProcedure);
}
}
public async Task UpdateTab(TabMain tabmain)
{
using (var sqlConnection = new SqlConnection(connectionString))
{
await sqlConnection.OpenAsync();
var dynamicParameters = new DynamicParameters();
dynamicParameters.Add("@FName", tabmain.FName);
dynamicParameters.Add("@FCompany", tabmain.FCompany);
dynamicParameters.Add("@FDate", tabmain.FDate);
dynamicParameters.Add("@FAmount", tabmain.FAmount);
dynamicParameters.Add("@FPaid", tabmain.FPaid);
dynamicParameters.Add("@FTransferType", tabmain.FTransferType);
dynamicParameters.Add("@FChequeNo", tabmain.FChequeNo);
dynamicParameters.Add("@FBank", tabmain.FBank);
dynamicParameters.Add("@FAccountNo", tabmain.FAccountNo);
dynamicParameters.Add("@Purpose", tabmain.Purpose);
await sqlConnection.ExecuteAsync(
"spUpdateTab",
dynamicParameters,
commandType: CommandType.StoredProcedure);
}
}
}
}在您的界面中,您将其定义为
Task<IEnumerable<TabMain>> Gettabs();
但你是这样实现的
public async Task<IEnumerable<TabMain>> GetTabs()
C是一种区分大小写的语言,因此您需要更改实现方法名称或接口方法名称。我会将接口方法名更改为GetTabs,以符合标准命名约定正如错误所述,您的类没有实现方法GetTabs。它确实实现了GetTabs方法,但是由于C是区分大小写的,所以这不是相同的方法。还值得注意的是,在错误消息中引用了gettabs,这与两者不同。套管很重要。谢谢大卫,错误已经解决了。