FillSchema Doesn't bring SQL Server Default Values

[Programmer]

Hi All

Here is my problem

I'm using a SQLDataAdapter and DataSet

I use the method FillSchema(myDa taset, SchemaType.Sour ce)
The problem is that when i Check the default Values of the Dataset
i can see that the DefaultValue of the columns is system.dbnull!! !!
But in SQL Server i have put as default values in a bigint field the '0' and
the field is also required

The Dataset is bound to a Datagrid and it's totaly disconected from the
server (Custom Control)
So because i handle the event of new row i must perform the AddRow at my
own.
I have capture the event and handle it for many reasons. And i can't change
it.
this is the code
Dim nr As DataRow = myDataset.Table s(0).NewRow
dsData.Tables(0 ).Rows.Add(nr)

Then i have the crash!. And the reason is that no Default Values exists from
the FillSchema call

Where is my default value?????????? ????????
How can i get them from the SQL????

Thank you in advance.

Kind Regards
Dimitris

[Programmer]

Re: FillSchema Doesn't bring SQL Server Default Values

I know that i can get the default values of columns on syscolumns and other
system tables.

IN .NET In DataSet to be exact. Fill Schema should bring the default.
Now I'm just making 2 steps and disconect from the server.
1. FillScehama(MyD ataset, SchemaType.Sour ce)
2. Fill(MyDataset. Tables(0))

And the only proposion is to get a DataReader for example loon in it so i
can get the default values?
I have thowht that. But I don't like it.

Isn't any implimentetion in .NET to do it without running a new select
statement??
Does finally the FillScehama has a bug?



Thank you for your reply.
Kind Regards
Dimitris


"Lishi Liu [MSFT]" <lishil@online. microsoft.com> wrote in message
news:nycUBxdfFH A.2828@TK2MSFTN GXA01.phx.gbl.. .[color=blue]
>
>
>
> If you work on SQL server, you get it by
> execute sp_MShelpcolumn s
> for example:
> execute sp_MShelpcolumn s 'dbo.Authors', null, 'id', 1
>
> The out put one row are for each column of the table dbo.Authors.
> There is a output column "Text", that contain the the default value for
> each column of the table(on each row).
> Another output column "col_defnam e", contains the default object binded
> for
> each column of the table.
>
> Or you can open a table in table designner, see the defaul value or
> binding
> property.
>
> VSData team, Lishi Liu
>
> --------------------[color=green]
>>Reply-To: "Programmer " <seeyou_gr@hotm ail.com>
>>From: "Programmer " <seeyou_gr@hotm ail.com>
>>Subject: FillSchema Doesn't bring SQL Server Default Values
>>Date: Thu, 30 Jun 2005 15:04:14 +0300
>>Keywords: FillSchema , SQL Default Values in FillSchema,Fill Schema Doesn't[/color]
> bring SQL Server Default Values[color=green]
>>Lines: 34
>>X-Priority: 3
>>X-MSMail-Priority: Normal
>>X-Newsreader: Microsoft Outlook Express 6.00.3790.1830
>>X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.1830
>>X-RFC2646: Format=Flowed; Original
>>Message-ID: <eB#WEwWfFHA.37 88@tk2msftngp13 .phx.gbl>
>>Newsgroups:[/color]
> microsoft.publi c.dotnet.framew ork.sdk,microso ft.public.dotne t.general,micro s
> oft.public.dotn et.languages.vb ,microsoft.publ ic.dotnet.langu ages.vb.data[color=green]
>>NNTP-Posting-Host: 212.114.125.86
>>Path: TK2MSFTNGXA01.p hx.gbl!TK2MSFTN GP08.phx.gbl!tk 2msftngp13.phx. gbl
>>Xref: TK2MSFTNGXA01.p hx.gbl microsoft.publi c.dotnet.genera l:45167[/color]
> microsoft.publi c.dotnet.langua ges.vb:95051
> microsoft.publi c.dotnet.langua ges.vb.data:218 5
> microsoft.publi c.dotnet.framew ork.sdk:1779[color=green]
>>X-Tomcat-NG: microsoft.publi c.dotnet.langua ges.vb.data
>>
>>Hi All
>>
>>Here is my problem
>>
>>I'm using a SQLDataAdapter and DataSet
>>
>>I use the method FillSchema(myDa taset, SchemaType.Sour ce)
>>The problem is that when i Check the default Values of the Dataset
>>i can see that the DefaultValue of the columns is system.dbnull!! !!
>>But in SQL Server i have put as default values in a bigint field the '0'[/color]
> and[color=green]
>>the field is also required
>>
>>The Dataset is bound to a Datagrid and it's totaly disconected from the
>>server (Custom Control)
>>So because i handle the event of new row i must perform the AddRow at my
>>own.
>>I have capture the event and handle it for many reasons. And i can't[/color]
> change[color=green]
>>it.
>>this is the code
>>Dim nr As DataRow = myDataset.Table s(0).NewRow
>>dsData.Tables (0).Rows.Add(nr )
>>
>>Then i have the crash!. And the reason is that no Default Values exists[/color]
> from[color=green]
>>the FillSchema call
>>
>>Where is my default value?????????? ????????
>>How can i get them from the SQL????
>>
>>Thank you in advance.
>>
>>Kind Regards
>>Dimitris
>>
>>
>>[/color]
>[/color]