Storedprocedure parameters order/sequence mismatch
--------------------------------------------------
Key: DNET-148
URL: http://tracker.firebirdsql.org/browse/DNET-148
Project: .NET Data provider
Issue Type: Bug
Components: ADO.NET Provider
Affects Versions: 2.5.0 Alpha 1
Environment: XPSP2, VS2008, Firebird-2.1.0.17176-0_Win32
Reporter: Tang ZhiGuo
Assignee: Carlos Guzman Alvarez
Please refer to followed example:
========================================================
In database:
CREATE PROCEDURE TEST_UPDATE (
PARA_1 BIGINT,
PARA_2 VARCHAR,
PARA_3 BLOB SUB_TYPE 1 SEGMENT SIZE 100)
AS
BEGIN
UPDATE TEST_TABLE
SET FIELD_2 = :PARA_2
FIELD_3 = :PARA_3
WHERE FIELD_1 = :PARA_1;
END;
In C#:
FbCommand command = new FbCommand("TEST_UPDATE", dbConn);
command.CommandType = CommandType.StoredProcedure;
command.Parameters.Add("@PARA_2", FbDbType.VarChar);
command.Parameters.Add("@PARA_3", FbDbType.VarChar);
command.Parameters.Add("@PARA_1", FbDbType.BigInt);
command.Parameters["@PARA_2"].Value = "some string";
command.Parameters["@PARA_3"].Value = "some string";
command.Parameters["@PARA_1"].Value = 1;
command.ExecuteNonQuery();
========================================================
Above example will throw the exception "Can't cast object type of Int32 to type
of System.String.".
I study the source code of "Firebird .Net Data Provider Version 2.5.0 Alpha 1
for .NET 2.0", the reason is:
In "UpdateParameterValues()" of "FbCommand.cs", the sequence of parameters in
"this.namedParameters" and "this.statement.Parameters" is mismatched.
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