How to use stored procedure in ADO.NET Entity Framework?
My Table : MyCustomer
Columns:
CustomerID PK int
Name nvarchar(50)
SurName nvarchar(50)
My stored procedure
ALTER procedure [dbo].[proc_MyCustomerAdd]
(@Name nvarchar(50),
@SurName nvarchar(50)
)
as
begin
insert into dbo.MyCustomer([Name], SurName) values(@name,@surname)
end
My C# code
private void btnSave_Click(object sender, EventArgs e)
{
entityContext.MyCustomerAdd(textName.Text.Trim(), textSurName.Text.Trim());
entityContext.SaveChanges();
}
The error:
The data reader is incompatible with the specified 'TestAdonetEntity2Model.MyCustomer'. A member of the type, 'CustomerID', does not have a corresponding column in the data reader with the same name.
Error occured below the last code line (call to ExecuteFunction):
global::System.Data.Objects.ObjectParameter surNameParameter;
if ((surName != null))
{
surNameParameter = new global::System.Data.Objects.ObjectParameter("SurName", surName);
}
else
{
surNameParameter = new global::System.Data.Objects.ObjectParameter("SurName", typeof(string));
}
<b>return base.ExecuteFunction<MyCustomer>("MyCustomerAdd", nameParameter, surNameParameter);</b>
Added is ok. Every added process is ok. But after editing, above error occurs.
I think what you need to do it a function import with the EF tooling and calling the imported function like
DataContext.MyFunctionName(storedProcedureParamer1, storedProcedureParamer2)
To call Stored Procedures for query operations you can use SqlQuery in Entityframework which is very helpful
_dbContext.Database.SqlQuery<EntityType>("sp_name",parameters).ToList();
For Executenonquery Operations(Transactions) you can use
_dbContext.Database.ExecuteSqlCommand(
@"UPDATE tblname SET Rating = 5" +
" WHERE Name LIKE '%Entity Framework%'"
);
Please note that _dbContext object of your Context class inherits from DbContext Class of Entityframework
Just a wild guess (I haven't used EF with stored procs): wouldn't the name of the function used in "ExecuteFunction" have to be the same as the stored proc's name??
return base.ExecuteFunction("MyCustomerAdd", nameParameter, surNameParameter);
ALTER procedure [dbo].[proc_MyCustomerAdd]
Can you try to use:
return base.ExecuteFunction("proc_MyCustomerAdd", nameParameter, surNameParameter);
Does that make any difference?
Marc
try
{
entityContext.MyCustomerAdd(textName.Text.Trim(), textSurName.Text.Trim())
}
catch (Exception ex)
{
;
}
Added Process runs correctly. On the other hand ; after added process, give Above error.But My solution run correct!!!
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