ADO.NET decimal parameter

When i update my table i get some annoying rounding.
The SQL table has been set with a scale of 2 (ie 2 to the right of decimal point) If i set it manually in the DB it stays as expected.

Eg. 81.5 stays as 81.5

but when i try and update from my app it gets rounded... 81.5 becomes 82. the dataset its held as i set it via the bound controls. I confirmed this by msgboxing it out..

So the problem lies with the parameters. At first i used the line below.
daProd.UpdateCommand.Parameters.Add(New SqlParameter("@PaymentForefit", SqlDbType.Decimal)).SourceColumn = "PaymentForefit"

Then i tried this other idea which incorporates the scale (set to 2). Still does work.
daProd.UpdateCommand.Parameters.Add(New SqlParameter("@PaymentForefit", SqlDbType.Decimal, _
                                                            9, ParameterDirection.Input, False, 18, 4, "PaymentForefit", _
                                                            DataRowVersion.Current, Nothing))

I printed out @PaymentForefit from the storedprocedure... by then it has been rounded so its 82.

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hi DSE,
could you try this

        Dim x As New SqlClient.SqlParameter("@PaymentForefit", SqlDbType.Decimal)
        command.Parameters("@out_arg").Direction = ParameterDirection.input
        command.Parameters("@out_arg").Precision = 10
        command.Parameters("@out_arg").Scale = 2

        Dim x As New SqlClient.SqlParameter("@PaymentForefit", SqlDbType.Decimal)
        x.Direction = ParameterDirection.input
        x.Precision = 10
        x.Scale = 2
DSEAuthor Commented:
Hi Ronald,

I will try that...

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DSEAuthor Commented:
alas that hasnt worked.

Is there any specialties i need consider when declaring the parameter in the stored procedure?


@PaymentForefit as decimal

Strange, I had the same problem, although for an output parameter, and that solved it.
I will try to recreate your problem and I'll get back to you.

DSEAuthor Commented:
Thanks for your persistance...

CREATE PROCEDURE [dbo].[UpdateEDUspecific]

@PaymentForefit as decimal =null


print @paymentforefit

.... Its this print that shows me that its been rounded

I tried this and this worked,

in my stored procedure i defined my decimal like this

@testje decimal(18,2),

and my parameter looked like this

daProd.UpdateCommand.Parameters.Add(New System.Data.SqlClient.SqlParameter("@testje", System.Data.SqlDbType.Decimal, 9, System.Data.ParameterDirection.Input, False, CType(18, Byte), CType(2, Byte), "testje", System.Data.DataRowVersion.Current, Nothing))

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DSEAuthor Commented:
Hi Ronald!...

i was just about to post my findings of the same!

Thanks for your help.

The points are yours!


DSEAuthor Commented:
For future readers id like to add that ive found that you dont need to specify precision and scale in the client side parameter declaration.
Aslong as the receiving procedure's parameter declaration has precision and scale defined it works fine!

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