DataAdapter/Update problem

[Elmo]

I've got a situation where I'm trying to fix an existing table - - The Fname
Field has both First & Last Names...

So - I've populated a Dataset with the ID, First and Last names - - -

I'm iterating through the datatable, Fixing the datat and assigning the
First and Last name to variables, which I then, want to use to update the
first and last name fields with.

I keep getting an error when I try to do the Update on the row:
"Update requires a valid UpdateCommand when passed DataRow collection with
modified rows. "

So far, here's what I've got :
For Each MyRow in ds.Tables(0).Rows
'Manipulate the data here - - asign First to sFirst and Last to sLast
variables (working perfectly)
'I then populate the update command:
UpDateSQL="Update Registered set Fname = '" & sFirst & "', Lname='" & sLast
& "' where ID = " & iID
Dim upDateCmd as New SqlCommand(UpdateSQL, MyConn)
UpdateCmd.CommandText=UpDateSQL
Trace.Warn ("commandText = " & UpdateCmd.CommandText) <---- this shows up
perfectly - exactly what is needed to update the table

da.Update(ds, "Registered") <-- error occurs here

What's wrong here?

Apparently I'm missing something, but I don't have the slightest idea what
it is.

[S. Justin Gengo]

Elmo,

Skip all the code and just modify your SQL instead.

SELECT (LastName + ", " + FirstName) AS FullName FROM tblNames

With the code above your database will return a column "FullName" to the
dataset and you're done.

Sincerely,

--
S. Justin Gengo, MCP
Web Developer

Free code library at:
www.aboutfortunate.com

"Out of chaos comes order."
Nietzche
"Elmo" <sp**********@yahoo.com> wrote in message
news:uf*************@TK2MSFTNGP10.phx.gbl...

I've got a situation where I'm trying to fix an existing table - - The Fname Field has both First & Last Names...

So - I've populated a Dataset with the ID, First and Last names - - -

I'm iterating through the datatable, Fixing the datat and assigning the
First and Last name to variables, which I then, want to use to update the
first and last name fields with.

I keep getting an error when I try to do the Update on the row:
"Update requires a valid UpdateCommand when passed DataRow collection with
modified rows. "

So far, here's what I've got :
For Each MyRow in ds.Tables(0).Rows
'Manipulate the data here - - asign First to sFirst and Last to sLast
variables (working perfectly)
'I then populate the update command:
UpDateSQL="Update Registered set Fname = '" & sFirst & "', Lname='" & sLast & "' where ID = " & iID
Dim upDateCmd as New SqlCommand(UpdateSQL, MyConn)
UpdateCmd.CommandText=UpDateSQL
Trace.Warn ("commandText = " & UpdateCmd.CommandText) <---- this shows up
perfectly - exactly what is needed to update the table

da.Update(ds, "Registered") <-- error occurs here

What's wrong here?

Apparently I'm missing something, but I don't have the slightest idea what
it is.

[Elmo]

Sorry - it's just the opposite I need - -
The full name is actually in the Fname field (I know - don't ask why - that
was before me) - - now
I'm trying to split that up into the first & last name fields.
"S. Justin Gengo" <sj*****@aboutfortunate.com> wrote in message
news:%2******************@TK2MSFTNGP10.phx.gbl...

Elmo,

Skip all the code and just modify your SQL instead.

SELECT (LastName + ", " + FirstName) AS FullName FROM tblNames

With the code above your database will return a column "FullName" to the
dataset and you're done.

Sincerely,

--
S. Justin Gengo, MCP
Web Developer

Free code library at:
www.aboutfortunate.com

"Out of chaos comes order."
Nietzche
"Elmo" <sp**********@yahoo.com> wrote in message
news:uf*************@TK2MSFTNGP10.phx.gbl...

I've got a situation where I'm trying to fix an existing table - - The

Fname

Field has both First & Last Names...

So - I've populated a Dataset with the ID, First and Last names - - -

I'm iterating through the datatable, Fixing the datat and assigning the
First and Last name to variables, which I then, want to use to update the first and last name fields with.

I keep getting an error when I try to do the Update on the row:
"Update requires a valid UpdateCommand when passed DataRow collection with modified rows. "

So far, here's what I've got :
For Each MyRow in ds.Tables(0).Rows
'Manipulate the data here - - asign First to sFirst and Last to sLast
variables (working perfectly)
'I then populate the update command:
UpDateSQL="Update Registered set Fname = '" & sFirst & "', Lname='" &

sLast

& "' where ID = " & iID
Dim upDateCmd as New SqlCommand(UpdateSQL, MyConn)
UpdateCmd.CommandText=UpDateSQL
Trace.Warn ("commandText = " & UpdateCmd.CommandText) <---- this shows up perfectly - exactly what is needed to update the table

da.Update(ds, "Registered") <-- error occurs here

What's wrong here?

Apparently I'm missing something, but I don't have the slightest idea what it is.