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.NET Forum / .NET Framework / New Users / March 2006

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Error adding to the OleDbParameterCollection object

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glenn - 24 Mar 2006 20:54 GMT
Thanks for any thoughts on this

I receive the following error when I run the code snippet below:

An OleDbParameter with ParameterName 'CateroryID_New' is not contained by
this OleDbParameterCollection.

    Private Function CreateUpdateCommand() As System.Data.OleDb.OleDbCommand
       Dim StrSQL As String
       Dim connectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;
Ole DB Services=-4; Data Source=C:\Program File"& _
   
"s\Microsoft.NET\SDK\v2.0\QuickStart\aspnet\samples\data\App_Data\Northwind.mdb"
       Dim dbConnection As System.Data.IDbConnection = New
System.Data.OleDb.OleDbConnection(connectionString)

       strSQL = "UPDATE [Categories] SET CategoryName=?, Description=?
WHERE CategoryID=?"

       Dim cmd As New System.Data.OleDb.OleDbCommand (strSQL, dbConnection)

       Dim pc As System.Data.OleDb.OleDbParameterCollection = cmd.Parameters

       pc.Add("CategoryID_New", System.Data.OleDb.OleDbType.Integer)
       pc.Add("CategoryName_New", System.Data.OleDb.OleDbType.BSTR)
       pc.Add("Description_New", System.Data.OleDb.OleDbType.BSTR)

       pc.Add("CategoryID_Orig", System.Data.OleDb.OleDbType.Integer)
       pc.Add("CategoryName_Orig", System.Data.OleDb.OleDbType.BSTR)
       pc.Add("Description_Orig", System.Data.OleDb.OleDbType.BSTR)

       Return cmd
    End Function
Jim Rand - 24 Mar 2006 22:08 GMT
Comment out the line:

>         pc.Add("CategoryID_New", System.Data.OleDb.OleDbType.Integer)

since there won't be a new id

> Thanks for any thoughts on this
>
[quoted text clipped - 7 lines]
>         Dim connectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;
> Ole DB Services=-4; Data Source=C:\Program File"& _

"s\Microsoft.NET\SDK\v2.0\QuickStart\aspnet\samples\data\App_Data\Northwind.
mdb"
>         Dim dbConnection As System.Data.IDbConnection = New
> System.Data.OleDb.OleDbConnection(connectionString)
[quoted text clipped - 16 lines]
>         Return cmd
>      End Function
Brad Roberts - 26 Mar 2006 23:50 GMT
Try pc.Add(new oledbParameter(...))

The parameters collection expects a parameter object in the Add().
Signature

Brad

> Thanks for any thoughts on this
>
[quoted text clipped - 29 lines]
>         Return cmd
>      End Function

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