How to get output result from stored procedure use Entity Framework in C#?
Solution 1
Declare your store procedure using this syntax:
USE yourDataBaseNAme
GO
CREATE PROCEDURE [dbo].yourStoreProcedureName
@startDate nvarchar(30),
@endDate nvarchar(30)
AS
SELECT Cast(date_rec_slash as datetime) AS 'date_rec_slash', count(code_marz) as total,
CASE
WHEN code_marz = 1 THEN 'a'
WHEN code_marz = 2 THEN 'b'
WHEN code_marz = 3 THEN 'c'
WHEN code_marz = 4 THEN 'd'
WHEN code_marz = 5 THEN 'e'
END AS 'code_marz'
FROM dbo.tbl_bar
WHERE Cast(date_rec_slash as datetime) between @startDate
AND @endDate
GROUP BY Cast(date_rec_slash as datetime), code_marz
ORDER BY Cast(date_rec_slash as datetime) ASC;
GO
Call this store procedure in EF:
db.Database.SqlQuery<yourObjectNameToCAST>("yourStoreProcedureName");
Call store procedure with parameter in EF:
SqlParameter startDate= new SqlParameter("@startDate", "Value");
SqlParameter endDate= new SqlParameter("@endDate", "Value");
db.Database.SqlQuery<yourObjectNameToCAST>("exec yourStoreProcedureName @startDate, @endDate", startDate, endDate).ToList();
your Object to Cast:
public class yourObjectNameToCAST
{
public datetime date_rec_slash { get; set; }
public int total { get; set; }
public string code_marz { get; set; }
}
Solution 2
You can declare your stored procedures using
CREATE PROCEDURE [dbo].YourStoredProcedure
@Start DATETIME,
@END DATETIME
AS
Then you can get rid of the code needed to cast from string
In order to get the results mapped as a c# object, you need to use SqlQuery
or FromSql
depending on the version of Entity Framework that you are using
Entity Framework 6
var result = dbContext.Bar.SqlQuery("EXEC YourStoredProcedure").ToList();
To pass a parameter, you woild do something like
var result = dbContext.Bar.SqlQuery("EXEC YourStoredProcedure @SomeParameter",
new SqlParameter("@SomeParameter", TheParameterValue)).ToList();
And for Entity Framework Core 2
var result = dbContext.Bar
.FromSql("EXEC YourStoredProcedure")
.ToList();
Where Bar
is your C# object declared as a property with type DbSet<Bar>
in your dbContext class
Based on your output you should create a C# object similar to
public class Bar
{
public datetime DateRecSlash { get; set; }
public int CodeMarz { get; set; }
}
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behnam
Updated on September 15, 2022Comments
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behnam over 1 year
I'm working on an ASP.NET MVC project; my goal is to prepare a report from a table so, the first time I've wrote Linq code but it was too slow.
And after that I've written a SQL query it was so fast and I want to use stored procedure for getting report data from my table. In fact my project is so easy: it gets two dates - start date and end date - and displays result in a table.
I want to write my stored procedure to get two parameters - start date and end date - from C# code and then return output in a variable in C#.
The first question: how to convert my SQL query to a stored procedure with two parameters, start Date and End date?
The second question: how to return output result in C#?
SELECT CAST(date_rec_slash AS DATETIME), COUNT(code_marz) AS total, CASE WHEN code_marz = 1 THEN 'a' WHEN code_marz = 2 THEN 'b' WHEN code_marz = 3 THEN 'c' WHEN code_marz = 4 THEN 'd' WHEN code_marz = 5 THEN 'e' END FROM dbo.tbl_bar WHERE CAST(date_rec_slash AS DATETIME) BETWEEN '2017/12/01' AND '2017/12/31' GROUP BY CAST(date_rec_slash AS DATETIME), code_marz ORDER BY CAST(date_rec_slash AS DATETIME) ASC;
C#:
var spResults = db.Database.SqlQuery<tbl_bar>("Report");
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behnam over 6 yearsbut didn't exist FromSql Method I'm using EF 6.
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Andre Lombaard over 6 yearsYes, sorry, I'm using the latest version of EF. Will update my answer for the solutions for both versions
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Hasan Fathi over 6 years@behnam this is helpful for you?
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behnam over 6 yearsHow to pass two parameter from EF SqlQuery db.Database.SqlQuery<yourObjectNameToCAST>("yourStoreProcedureName",paramas);
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behnam over 6 yearsbut there is a little bit issue about it.it was return 246 records but all of them are null value.In fact I need just the same output of sql server.photobox.co.uk/my/photo/full?photo_id=500535291910
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Hasan Fathi over 6 yearsi have not any idea from your data
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Hasan Fathi over 6 yearsprobably your issue about null values related your given data casting, please check your field name equal to names that receive from database
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behnam over 6 yearsI just need three outputs datetime and total and name of them forexample a,b,c,d,e that's all.
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Hasan Fathi over 6 yearsLet us continue this discussion in chat.
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Hasan Fathi over 6 years@benam please check final change
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behnam over 6 yearsLet us continue this discussion in chat.