I have a T-SQL stored procedure:
CREATE PROCEDURE [dbo].[GetRequestTest]
@RequestId UNIQUEIDENTIFIER
AS
BEGIN
SELECT
Request.Amount,
Request.Checksum
FROM
Request
WHERE
RequestId = @RequestId
END
C# mapping class:
public class CustomTest : Itest
{
public decimal Amount {get;set;}
public string Checksum { get; set; }
}
I'm calling trying to invoke stored procedure by using Dapper:
public void Load(CustomTest obj, Guid RequestId)
{
using (var con = base.GetClosedConnection())
{
con.Open();
var p = new DynamicParameters();
p.Add("@RequestId", dbType: DbType.Guid, direction: ParameterDirection.Input);
var result = con.ExecuteReader("[dbo].[GetRequestTest]", param: p, commandType: CommandType.StoredProcedure);
while (result.Read())
obj.Amount = (decimal)result["Amount"];
}
}
But result is null
I tried to call to put SQL statement from stored procedure directly into C# code - and it works fine, but it doesn't work with stored procedure.
Any ideas - how to make it work?
You call wrong method:
public void Load(CustomTest obj, Guid RequestId)
{
using (var con = base.GetClosedConnection())
{
con.Open();
//result is list of CustomTest
var result = db.Query<CustomTest>("GetRequestTest", new {RequestId},
commandType: CommandType.StoredProcedure);
}
}
How to use dapper: https://github.com/StackExchange/dapper-dot-net
using (var con = base.GetClosedConnection())
{
var result = conn.Query<CustomTest>("exec [dbo].[GetRequestTest] @id", new {Id = RequestId});
}
Column names stored procedure or query returns should be same as CustomTest`s property names (e.g. Amount, Checksum). As result you will receive IEnumerable filled with appropriate data.