如何在 Dapper 中插入后读取 SELECT

Question

我是 dapper 的新手。我正在尝试对我的存储过程进行验证。以下是我的代码：

USE [DapperDB]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[sp_blzr_Video_Insert]

            @Title varchar(128), 
            @DatePublished date, 
            @IsActive bit
AS
BEGIN
    SET NOCOUNT ON;
    IF EXISTS(SELECT Title FROM Video WHERE Title = @Title)
        BEGIN
            SELECT 0 as ReturnID, 'Title is already in the database. Please check your data entry' as ReturnMessage;
        END
    ELSE
        BEGIN
            INSERT INTO Video
            (   
                Title, 
                DatePublished, 
                IsActive
            )
            VALUES        
            (
                @Title, 
                @DatePublished, 
                @IsActive
            )

            SELECT 1 as ReturnID, 'Success' as ReturnMessage;
        END
END

这是我的 C# 代码。这就是我被卡住的地方。我不知道如何在插入后使用 Select 语句。

//Add (Create/Insert)
public async Task VideoInsert(Video video)
{
    var result = new ResultFromSP();

    using (var conn = new SqlConnection(_configuration.Value))
    {
        var parameters = new DynamicParameters();
        parameters.Add("Title", video.Title, DbType.String);
        parameters.Add("DatePublished", video.DatePublished, DbType.DateTime);
        parameters.Add("isActive", video.isActive, DbType.Boolean);
        //Stored Proc
        await conn.ExecuteAsync("sp_blzr_Video_Insert", parameters, commandType:CommandType.StoredProcedure);
    }
}

我想消费 ex: "'SELECT 1, 'Success!'"?在我的应用程序中，如果第一列是 1，则表示插入成功。之后我会提示插入“成功”。

Answer 1

您可以将执行更改为

var output = await conn.QueryFirstAsync<dynamic>(“EXEC p_blzr_Video_Insert @Title, @DatePublished, @IsActive”, parameters);

var returnId = (int) output.ReturnID;
var returnMessage = (string) output.ReturnMessage;

这使用query方法读取存储过程的结果和动态结果，因此您不需要创建class。

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