Hi! Sorry for my many postings on this Newsgroup. I am new to ADO.NET and I
got Sceppa's book on ADO.NET. It's a great book but covers a lot on the
DataAdapter and Offline Data. Now, if I want to Insert Data into my MSDE
Database, can I do it without using the DataAdapter?
Here are the steps I use to insert the data.
Open Connection
Add Parameters, set direction and specify value.
Call my connection.ExecuteNonQuery()
Close the Connection.
Now, I keep getting this error on the Execute reader. I am in no point
calling a Reader for the table. I just specify my stored procedure (that
only have INSERT statements) and I just want to insert the values, not
retrieve anything.
This is the error I get "Additional information: ExecuteReader: Connection
property has not been initialized."
Do you know what might be causing this? I am using a SQLConnection and
SQLCommand. That's all.
Teo 5 1761
I believe all those methods use the ExecuteReader method in the background,
so that is why the top level in the stack has that.
If you post some specific code, we can be more helpful. It sounds like your
are not setting the Connectio property of your command.
"Teo" <no********@homsany.net> wrote in message
news:u$**************@TK2MSFTNGP12.phx.gbl... Hi! Sorry for my many postings on this Newsgroup. I am new to ADO.NET and
I got Sceppa's book on ADO.NET. It's a great book but covers a lot on the DataAdapter and Offline Data. Now, if I want to Insert Data into my MSDE Database, can I do it without using the DataAdapter? Here are the steps I use to insert the data. Open Connection Add Parameters, set direction and specify value. Call my connection.ExecuteNonQuery() Close the Connection.
Now, I keep getting this error on the Execute reader. I am in no point calling a Reader for the table. I just specify my stored procedure (that only have INSERT statements) and I just want to insert the values, not retrieve anything. This is the error I get "Additional information: ExecuteReader: Connection property has not been initialized." Do you know what might be causing this? I am using a SQLConnection and SQLCommand. That's all.
Teo
Hey Marina, sure, here's my VB code below, I am trying to just do a
ExecuteNonQuery, so all the values I assign before that go into the DB with
the stored procedure.
Here is the code.
Thanks so much,
Teo
Private Sub btnagregar_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles btnagregar.Click
Dim cedula, nombre, apellido, direccion, ciudad, estado, zip, apostal As
String
Dim estudiante, privada, comercial, instrumentos, multimotor, instructor,
atp As Boolean
Dim fechanacimiento As Date
Dim param As SqlParameter
'Asignar valores
cedula = txtid.Text
apellido = txtapellido.Text
nombre = txtnombre.Text
direccion = txtdireccion.Text
ciudad = txtciudad.Text
estado = txtestado.Text
zip = txtzip.Text
apostal = txtapostal.Text
fechanacimiento = CDate(dtpfechanacimiento.Value)
estudiante = chkestudiante.CheckState
privada = chkprivada.CheckState
comercial = chkcomercial.CheckState
instrumentos = chkinstrumentos.CheckState
multimotor = chkmulti.CheckState
instructor = chkinstructor.CheckState
atp = chkatp.CheckState
cn.Open()
param = cm.Parameters.Add("@id", SqlDbType.Char, 15)
param.Value = cedula
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@apellido", SqlDbType.VarChar, 50)
param.Value = apellido
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@nombre", SqlDbType.VarChar, 50)
param.Value = nombre
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@direccion", SqlDbType.VarChar, 200)
param.Value = direccion
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@ciudad", SqlDbType.VarChar, 50)
param.Value = ciudad
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@estado", SqlDbType.VarChar, 50)
param.Value = estado
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@zip", SqlDbType.VarChar, 10)
param.Value = zip
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@apostal", SqlDbType.VarChar, 200)
param.Value = apostal
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@fechanacimiento", SqlDbType.DateTime, 8)
param.Value = fechanacimiento
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@estudiante", SqlDbType.Char, 10)
param.Value = estudiante
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@privada", SqlDbType.Char, 10)
param.Value = privada
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@comercial", SqlDbType.Char, 10)
param.Value = comercial
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@instrumentos", SqlDbType.Char, 10)
param.Value = instrumentos
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@multi", SqlDbType.Char, 10)
param.Value = multimotor
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@instructor", SqlDbType.Char, 10)
param.Value = instructor
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@atp", SqlDbType.Char, 10)
param.Value = atp
param.Direction = ParameterDirection.Input
cm.ExecuteNonQuery()
MsgBox("Su entrada ha sido procesada...")
cn.Close()
End Sub
"Marina" <zl*******@nospam.hotmail.com> wrote in message
news:%2****************@tk2msftngp13.phx.gbl... I believe all those methods use the ExecuteReader method in the
background, so that is why the top level in the stack has that.
If you post some specific code, we can be more helpful. It sounds like
your are not setting the Connectio property of your command.
"Teo" <no********@homsany.net> wrote in message news:u$**************@TK2MSFTNGP12.phx.gbl... Hi! Sorry for my many postings on this Newsgroup. I am new to ADO.NET
and I got Sceppa's book on ADO.NET. It's a great book but covers a lot on the DataAdapter and Offline Data. Now, if I want to Insert Data into my MSDE Database, can I do it without using the DataAdapter? Here are the steps I use to insert the data. Open Connection Add Parameters, set direction and specify value. Call my connection.ExecuteNonQuery() Close the Connection.
Now, I keep getting this error on the Execute reader. I am in no point calling a Reader for the table. I just specify my stored procedure (that only have INSERT statements) and I just want to insert the values, not retrieve anything. This is the error I get "Additional information: ExecuteReader:
Connection property has not been initialized." Do you know what might be causing this? I am using a SQLConnection and SQLCommand. That's all.
Teo
Where is the cm object being instantiated? That is what's important.
"Teo" <no********@homsany.net> wrote in message
news:e2**************@tk2msftngp13.phx.gbl... Hey Marina, sure, here's my VB code below, I am trying to just do a ExecuteNonQuery, so all the values I assign before that go into the DB
with the stored procedure. Here is the code. Thanks so much, Teo
Private Sub btnagregar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnagregar.Click
Dim cedula, nombre, apellido, direccion, ciudad, estado, zip, apostal As String
Dim estudiante, privada, comercial, instrumentos, multimotor, instructor, atp As Boolean
Dim fechanacimiento As Date
Dim param As SqlParameter 'Asignar valores
cedula = txtid.Text
apellido = txtapellido.Text
nombre = txtnombre.Text
direccion = txtdireccion.Text
ciudad = txtciudad.Text
estado = txtestado.Text
zip = txtzip.Text
apostal = txtapostal.Text
fechanacimiento = CDate(dtpfechanacimiento.Value)
estudiante = chkestudiante.CheckState
privada = chkprivada.CheckState
comercial = chkcomercial.CheckState
instrumentos = chkinstrumentos.CheckState
multimotor = chkmulti.CheckState
instructor = chkinstructor.CheckState
atp = chkatp.CheckState cn.Open() param = cm.Parameters.Add("@id", SqlDbType.Char, 15)
param.Value = cedula
param.Direction = ParameterDirection.Input param = cm.Parameters.Add("@apellido", SqlDbType.VarChar, 50)
param.Value = apellido
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@nombre", SqlDbType.VarChar, 50)
param.Value = nombre
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@direccion", SqlDbType.VarChar, 200)
param.Value = direccion
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@ciudad", SqlDbType.VarChar, 50)
param.Value = ciudad
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@estado", SqlDbType.VarChar, 50)
param.Value = estado
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@zip", SqlDbType.VarChar, 10)
param.Value = zip
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@apostal", SqlDbType.VarChar, 200)
param.Value = apostal
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@fechanacimiento", SqlDbType.DateTime, 8)
param.Value = fechanacimiento
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@estudiante", SqlDbType.Char, 10)
param.Value = estudiante
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@privada", SqlDbType.Char, 10)
param.Value = privada
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@comercial", SqlDbType.Char, 10)
param.Value = comercial
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@instrumentos", SqlDbType.Char, 10)
param.Value = instrumentos
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@multi", SqlDbType.Char, 10)
param.Value = multimotor
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@instructor", SqlDbType.Char, 10)
param.Value = instructor
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@atp", SqlDbType.Char, 10)
param.Value = atp
param.Direction = ParameterDirection.Input
cm.ExecuteNonQuery()
MsgBox("Su entrada ha sido procesada...") cn.Close()
End Sub
"Marina" <zl*******@nospam.hotmail.com> wrote in message news:%2****************@tk2msftngp13.phx.gbl... I believe all those methods use the ExecuteReader method in the background, so that is why the top level in the stack has that.
If you post some specific code, we can be more helpful. It sounds like your are not setting the Connectio property of your command.
"Teo" <no********@homsany.net> wrote in message news:u$**************@TK2MSFTNGP12.phx.gbl... Hi! Sorry for my many postings on this Newsgroup. I am new to ADO.NET and I got Sceppa's book on ADO.NET. It's a great book but covers a lot on
the DataAdapter and Offline Data. Now, if I want to Insert Data into my
MSDE Database, can I do it without using the DataAdapter? Here are the steps I use to insert the data. Open Connection Add Parameters, set direction and specify value. Call my connection.ExecuteNonQuery() Close the Connection.
Now, I keep getting this error on the Execute reader. I am in no point calling a Reader for the table. I just specify my stored procedure
(that only have INSERT statements) and I just want to insert the values, not retrieve anything. This is the error I get "Additional information: ExecuteReader: Connection property has not been initialized." Do you know what might be causing this? I am using a SQLConnection and SQLCommand. That's all.
Teo
Hey Marina, I usually do that on the object itself, not in code. I actually
added the cm.connection = cn where I initialize the connection. But now I
get a System error.
Teo
"Marina" <zl*******@nospam.hotmail.com> wrote in message
news:eR**************@TK2MSFTNGP10.phx.gbl... Where is the cm object being instantiated? That is what's important.
"Teo" <no********@homsany.net> wrote in message news:e2**************@tk2msftngp13.phx.gbl... Hey Marina, sure, here's my VB code below, I am trying to just do a ExecuteNonQuery, so all the values I assign before that go into the DB with the stored procedure. Here is the code. Thanks so much, Teo
Private Sub btnagregar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnagregar.Click
Dim cedula, nombre, apellido, direccion, ciudad, estado, zip, apostal As String
Dim estudiante, privada, comercial, instrumentos, multimotor,
instructor, atp As Boolean
Dim fechanacimiento As Date
Dim param As SqlParameter 'Asignar valores
cedula = txtid.Text
apellido = txtapellido.Text
nombre = txtnombre.Text
direccion = txtdireccion.Text
ciudad = txtciudad.Text
estado = txtestado.Text
zip = txtzip.Text
apostal = txtapostal.Text
fechanacimiento = CDate(dtpfechanacimiento.Value)
estudiante = chkestudiante.CheckState
privada = chkprivada.CheckState
comercial = chkcomercial.CheckState
instrumentos = chkinstrumentos.CheckState
multimotor = chkmulti.CheckState
instructor = chkinstructor.CheckState
atp = chkatp.CheckState cn.Open() param = cm.Parameters.Add("@id", SqlDbType.Char, 15)
param.Value = cedula
param.Direction = ParameterDirection.Input param = cm.Parameters.Add("@apellido", SqlDbType.VarChar, 50)
param.Value = apellido
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@nombre", SqlDbType.VarChar, 50)
param.Value = nombre
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@direccion", SqlDbType.VarChar, 200)
param.Value = direccion
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@ciudad", SqlDbType.VarChar, 50)
param.Value = ciudad
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@estado", SqlDbType.VarChar, 50)
param.Value = estado
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@zip", SqlDbType.VarChar, 10)
param.Value = zip
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@apostal", SqlDbType.VarChar, 200)
param.Value = apostal
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@fechanacimiento", SqlDbType.DateTime, 8)
param.Value = fechanacimiento
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@estudiante", SqlDbType.Char, 10)
param.Value = estudiante
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@privada", SqlDbType.Char, 10)
param.Value = privada
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@comercial", SqlDbType.Char, 10)
param.Value = comercial
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@instrumentos", SqlDbType.Char, 10)
param.Value = instrumentos
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@multi", SqlDbType.Char, 10)
param.Value = multimotor
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@instructor", SqlDbType.Char, 10)
param.Value = instructor
param.Direction = ParameterDirection.Input
param = cm.Parameters.Add("@atp", SqlDbType.Char, 10)
param.Value = atp
param.Direction = ParameterDirection.Input
cm.ExecuteNonQuery()
MsgBox("Su entrada ha sido procesada...") cn.Close()
End Sub
"Marina" <zl*******@nospam.hotmail.com> wrote in message news:%2****************@tk2msftngp13.phx.gbl... I believe all those methods use the ExecuteReader method in the background, so that is why the top level in the stack has that.
If you post some specific code, we can be more helpful. It sounds like your are not setting the Connectio property of your command.
"Teo" <no********@homsany.net> wrote in message news:u$**************@TK2MSFTNGP12.phx.gbl... > Hi! Sorry for my many postings on this Newsgroup. I am new to
ADO.NET and I > got Sceppa's book on ADO.NET. It's a great book but covers a lot on the > DataAdapter and Offline Data. Now, if I want to Insert Data into my MSDE > Database, can I do it without using the DataAdapter? > Here are the steps I use to insert the data. > Open Connection > Add Parameters, set direction and specify value. > Call my connection.ExecuteNonQuery() > Close the Connection. > > Now, I keep getting this error on the Execute reader. I am in no
point > calling a Reader for the table. I just specify my stored procedure (that > only have INSERT statements) and I just want to insert the values,
not > retrieve anything. > This is the error I get "Additional information: ExecuteReader:
Connection > property has not been initialized." > Do you know what might be causing this? I am using a SQLConnection
and > SQLCommand. That's all. > > Teo > >
Nevermind, it's working now!!! It's a good feeling when you get something to
work!!! I'll throw a party now ;-)
Thanks so much Marina!
Teo
"Marina" <zl*******@nospam.hotmail.com> wrote in message
news:Oc**************@tk2msftngp13.phx.gbl... What is a 'System' error? That really doesn't tell us much.
"Teo" <no********@homsany.net> wrote in message news:en**************@TK2MSFTNGP11.phx.gbl... Hey Marina, I usually do that on the object itself, not in code. I actually added the cm.connection = cn where I initialize the connection. But now
I get a System error.
Teo "Marina" <zl*******@nospam.hotmail.com> wrote in message news:eR**************@TK2MSFTNGP10.phx.gbl... Where is the cm object being instantiated? That is what's important.
"Teo" <no********@homsany.net> wrote in message news:e2**************@tk2msftngp13.phx.gbl... > Hey Marina, sure, here's my VB code below, I am trying to just do a > ExecuteNonQuery, so all the values I assign before that go into the
DB with > the stored procedure. > Here is the code. > Thanks so much, > Teo > > Private Sub btnagregar_Click(ByVal sender As System.Object, ByVal e
As > System.EventArgs) Handles btnagregar.Click > > Dim cedula, nombre, apellido, direccion, ciudad, estado, zip,
apostal As > String > > Dim estudiante, privada, comercial, instrumentos, multimotor, instructor, > atp As Boolean > > Dim fechanacimiento As Date > > Dim param As SqlParameter > > > > > > > > > > > > > > > > 'Asignar valores > > cedula = txtid.Text > > apellido = txtapellido.Text > > nombre = txtnombre.Text > > direccion = txtdireccion.Text > > ciudad = txtciudad.Text > > estado = txtestado.Text > > zip = txtzip.Text > > apostal = txtapostal.Text > > fechanacimiento = CDate(dtpfechanacimiento.Value) > > estudiante = chkestudiante.CheckState > > privada = chkprivada.CheckState > > comercial = chkcomercial.CheckState > > instrumentos = chkinstrumentos.CheckState > > multimotor = chkmulti.CheckState > > instructor = chkinstructor.CheckState > > atp = chkatp.CheckState > > > > cn.Open() > > > > param = cm.Parameters.Add("@id", SqlDbType.Char, 15) > > param.Value = cedula > > param.Direction = ParameterDirection.Input > > > > param = cm.Parameters.Add("@apellido", SqlDbType.VarChar, 50) > > param.Value = apellido > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@nombre", SqlDbType.VarChar, 50) > > param.Value = nombre > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@direccion", SqlDbType.VarChar, 200) > > param.Value = direccion > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@ciudad", SqlDbType.VarChar, 50) > > param.Value = ciudad > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@estado", SqlDbType.VarChar, 50) > > param.Value = estado > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@zip", SqlDbType.VarChar, 10) > > param.Value = zip > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@apostal", SqlDbType.VarChar, 200) > > param.Value = apostal > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@fechanacimiento", SqlDbType.DateTime, 8) > > param.Value = fechanacimiento > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@estudiante", SqlDbType.Char, 10) > > param.Value = estudiante > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@privada", SqlDbType.Char, 10) > > param.Value = privada > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@comercial", SqlDbType.Char, 10) > > param.Value = comercial > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@instrumentos", SqlDbType.Char, 10) > > param.Value = instrumentos > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@multi", SqlDbType.Char, 10) > > param.Value = multimotor > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@instructor", SqlDbType.Char, 10) > > param.Value = instructor > > param.Direction = ParameterDirection.Input > > param = cm.Parameters.Add("@atp", SqlDbType.Char, 10) > > param.Value = atp > > param.Direction = ParameterDirection.Input > > > > > > cm.ExecuteNonQuery() > > > > > > > > > > > > MsgBox("Su entrada ha sido procesada...") > > > > cn.Close() > > End Sub > > "Marina" <zl*******@nospam.hotmail.com> wrote in message > news:%2****************@tk2msftngp13.phx.gbl... > > I believe all those methods use the ExecuteReader method in the > background, > > so that is why the top level in the stack has that. > > > > If you post some specific code, we can be more helpful. It sounds like > your > > are not setting the Connectio property of your command. > > > > "Teo" <no********@homsany.net> wrote in message > > news:u$**************@TK2MSFTNGP12.phx.gbl... > > > Hi! Sorry for my many postings on this Newsgroup. I am new to ADO.NET > and > > I > > > got Sceppa's book on ADO.NET. It's a great book but covers a lot on the > > > DataAdapter and Offline Data. Now, if I want to Insert Data into my MSDE > > > Database, can I do it without using the DataAdapter? > > > Here are the steps I use to insert the data. > > > Open Connection > > > Add Parameters, set direction and specify value. > > > Call my connection.ExecuteNonQuery() > > > Close the Connection. > > > > > > Now, I keep getting this error on the Execute reader. I am in no point > > > calling a Reader for the table. I just specify my stored
procedure (that > > > only have INSERT statements) and I just want to insert the
values, not > > > retrieve anything. > > > This is the error I get "Additional information: ExecuteReader: > Connection > > > property has not been initialized." > > > Do you know what might be causing this? I am using a
SQLConnection and > > > SQLCommand. That's all. > > > > > > Teo > > > > > > > > > > > >
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