Adding the parameters dynamicaly to SP

In our website we have created the reportengine which passes the parameters dynamicaly means whatever parameters are provided in Stored procedure is automaticaly binded to grid from where values are passed to sp as follows
.Actualy this code is written by some other developer
If Not ParameterTable Is Nothing Then
RecordCount = ParameterTable.Rows.Count
If RecordCount >= 1 Then
For Index = 0 to (RecordCount - 1)
ParameterRow = ParameterTable.Rows(Index)
Select Case ParameterRow(1)
Case "231"
RecordType = "SQlDbType.NVarChar"
Case "60"
RecordType = "SQlDbType.Money"
Case "61"
RecordType = "SQlDbType.DateTime"
Case "62"
RecordType = "SQlDbType.Int"
Case "59"
RecordType = "SQlDbType.Float"
Case "104"
RecordType = "SQlDbType.Bit"
Case Else
RecordType = "SQlDbType.Int"

End Select
myCommand.Parameters.Add(ParameterRow(0), RecordType).Value = (ParameterRow(2))

[red]When Sp is executed with link[/red]<A href="http://links.10026.com/?link=Main.aspx?ReportID=1075443551&ReportName=RptAPandARComparative&ReportDescription=RptAPandARComparative"
target="main">

I get the error that nvarchar can not be converted int

Why is is So?
Is anybody having same type of experiance
In above link I got reportid as queries
select id from sysobjects where name='RptAPandARComparative'

Swati Jain:

I get the error that nvarchar can not be converted int

Is your stored procedure parameter declared as an int or varchar?

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I tried all datatypes still I got the same error with sp as well as code

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Swati Jain:

I tried all datatypes still I got the same error with sp as well as code

Can you show us your input parameters for the stored procedures?

You would also have to specify the parameter value size as well to make sure there are no data type mismatch errors.

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alterPROCEDURE [enterprise].[RptAPandARComparative]

@.Year1Int,--nvarchar(8), I tried various datatypes

@.Year2Int--nvarchar(8)

AS

No Code is written for specifying the size of the datatype

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Swati Jain:

alterPROCEDURE [enterprise].[RptAPandARComparative]

@.Year1Int,--nvarchar(8), I tried various datatypes

@.Year2Int--nvarchar(8)

your stored procedures are declared with INTEGER input paramters, so you have to set the type for your parameters toSqlDbType.Int for both input parameters.

You should also set the size as well, I believe int datatypes in SQL Server is 8 bytes.

Adding Externall DLL functions written in Visual C++

Hi,

I'm trying to add exernal functions defined by a third party in a dll. They developed the dll in Visual C++ and is provided as is, with very little additional info about the code. The dll is tested and can be integrated into an application developed with VB.NET but no other experiences are available. I tried to add the functions to SQL Server 2005 Express edition but on attempting to CREATE the ASSEMBLY i get the following error:

CREATE ASSEMBLY for assembly 'ThirdPartyDll' failed because assembly 'ThirdPartyDll' is malformed or not a pure .NET assembly.

Unverifiable PE Header/native stub.

No rows affected.

(0 row(s) returned)

@.RETURN_VALUE = -6

Finished running [dbo].[ThirdPartyDll].

Is there an alternative way to add these functions for non pure .NET assemblies, or in general, is there a workaround to solve the problem?

By the way, do i need to register the dll with RegSvr32 first?

Thanks,

Marco.

Your third party dll is probably a COM dll.

You will have to use interop to create a .Net wrapper for the com dll. Both the dll's will have to be installed on your server (yes - you'll have to regsvr32 the original dll). When creating the assembly on the database you'll have to specify unsafe so that you may access external code.

It is not very recommended that you call C++ COM dll's from sql's clr...