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DataReader / DataTable question...
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This message was discovered on ASPFriends.com 'aspngdata' list.


Francesco Sanfilippo

I have a SQL sproc that returns 10 result sets. I grab it into a
DataReader. I want to loop through the result sets, and for each one, dump
the result set contents into a separate DataTable. I can't find a
DataReader equivalent to the DataAdapter Fill() method. Can someone show me
how this can be done?

TIA, Francesco

while (dr.read())
{
// loop through result sets and dump into DataTables
}

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Sherlock Bryan P Contr OC-ALC/LIP
Try using NextResutl()

        Dim fNextResult As Boolean = True

        DataGrid1.DataSource = objDataReader
        DataGrid1.DataBind()
             
        fNextResult = objDataReader.NextResult()

        DataGrid1.DataSource = objDataReader
        DataGrid2.DataBind()

[Original message clipped]

-----Original Message-----
From: Francesco Sanfilippo [mailto:Click here to reveal e-mail address]
Sent: Monday, June 03, 2002 2:51 PM
To: aspngdata
Subject: [aspngdata] DataReader / DataTable question...

I have a SQL sproc that returns 10 result sets. I grab it into a
DataReader. I want to loop through the result sets, and for each one, dump
the result set contents into a separate DataTable. I can't find a
DataReader equivalent to the DataAdapter Fill() method. Can someone show me

how this can be done?

TIA, Francesco

while (dr.read())
{
// loop through result sets and dump into DataTables
}

_________________________________________________________________
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http://www.hotmail.com

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Alex Dresko
Perhaps this would help.
http://www.dotnetjunkies.com/tutorials.aspx?tutorialid=247

Alex Dresko
Three Point Oh!

-----Original Message-----
From: Francesco Sanfilippo [mailto:Click here to reveal e-mail address]
Sent: Monday, June 03, 2002 3:51 PM
To: aspngdata
Subject: [aspngdata] DataReader / DataTable question...

I have a SQL sproc that returns 10 result sets. I grab it into a
DataReader. I want to loop through the result sets, and for each one,
dump
the result set contents into a separate DataTable. I can't find a
DataReader equivalent to the DataAdapter Fill() method. Can someone
show me
how this can be done?

TIA, Francesco

while (dr.read())
{
// loop through result sets and dump into DataTables
}

_________________________________________________________________
Join the world's largest e-mail service with MSN Hotmail.
http://www.hotmail.com

| [aspngdata] member Click here to reveal e-mail address = YOUR ID
| http://www.asplists.com/asplists/aspngdata.asp = JOIN/QUIT
| http://www.asplists.com/search = SEARCH Archives
Reply to this message...
 
    
Michael Pizzo
Why are you getting back a DataReader? You can use Adapter.Fill in
order to populate multiple tables using the results from the Stored
Procedure. Using TableMappings in order to map the results to the
proper tables. For example:

SqlDataAdapter adapter =3D new SqlDataAdapter(
    "SP_GetCustomersAndOrders",cnn);
adapter.SelectCommand.CommandType =3D CommandType.StoredProcedure;
adapter.TableMappings.Add("Table1","Customer");
adapter.TableMappings.Add("Table2","Orders");
adapter.Fill(myDataSet);

-----Original Message-----
From: Francesco Sanfilippo [mailto:Click here to reveal e-mail address]=20
Sent: Monday, June 03, 2002 12:51 PM
To: aspngdata
Subject: [aspngdata] DataReader / DataTable question...

I have a SQL sproc that returns 10 result sets. I grab it into a=20
DataReader. I want to loop through the result sets, and for each one,
dump=20
the result set contents into a separate DataTable. I can't find a=20
DataReader equivalent to the DataAdapter Fill() method. Can someone
show me=20
how this can be done?

TIA, Francesco

while (dr.read())
{
// loop through result sets and dump into DataTables
}

_________________________________________________________________
Join the world's largest e-mail service with MSN Hotmail.=20
http://www.hotmail.com

| [aspngdata] member Click here to reveal e-mail address =3D YOUR ID
| http://www.asplists.com/asplists/aspngdata.asp =3D JOIN/QUIT
| http://www.asplists.com/search =3D SEARCH Archives
Reply to this message...
 
    
Francesco Sanfilippo
What if the DataTables aren't in a DataSet? Fill() doesn't work on
individual tables unfortunately.

FS

[Original message clipped]

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Francesco Sanfilippo
I did what you said, and I get an error that the DataSet cannot be null, on
the line where da.Fill() is attempted. What else do I need to do to
initialize it before Filling? I think it has to do with the source table
name. My sproc is returning a result set which is the result of a complex
join, it is not a simple SELECT * from a table, so the result set table
doesn't really have a name. Relevant code below...

TIA, Francesco

public DataSet MemberData;
SqlDataAdapter da = sql.ExecSPRetDA("Member_Initialize_All");
da.TableMappings.Add("PersonAddress","PersonAddress");
da.TableMappings.Add("PersonEmail","PersonEmail");
da.TableMappings.Add("PersonPhone","PersonPhone");
da.TableMappings.Add("PersonCommunity","PersonCommunity");
da.TableMappings.Add("PersonForum","PersonForum");
da.TableMappings.Add("PersonGallery","PersonGallery");
da.TableMappings.Add("PersonLanguage","PersonLanguage");
da.TableMappings.Add("PersonNewsletter","PersonNewsletter");
da.TableMappings.Add("PersonPerson","PersonPerson");
da.TableMappings.Add("PersonCategory","PersonCategory");
da.Fill(MemberData);

[Original message clipped]

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System.Data.CommandType
System.Data.Common.DataAdapter
System.Data.DataSet
System.Data.DataTable
System.Data.SqlClient.SqlDataAdapter




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