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Problem in inserting a new row in MS Access using VB.NET

18 New Member
Hello,
I'm new in vb.net. I have a problem in inserting a new row to a MS Access database table.
There is no error message comes out when i run my program, but when i check my MS Access table, there is no record inserted. So, i don't know which line is incorrect.

Here is my code:
Dim desc, itemID As String

itemID = txtItemID.Text
desc = txtItemDesc.Tex t

Dim myOleDbConnecti on As OleDb.OleDbConn ection
Dim insertCommand As String
Dim myConnectionStr ing As String = "Provider=Micro soft.Jet.OLEDB. 4.0;Data Source=E:\Lectu re\CS220\Progra m backup 3\Ai Ling Ka Salon System\database \login.mdb;User ID=Admin;Passwo rd=;"

insertCommand = "INSERT INTO tblLogin (username, password) VALUES(desc, itemID);"

myOleDbConnecti on = New OleDb.OleDbConn ection(myConnec tionString)

Dim myOleDbCommand As New OleDb.OleDbComm and(insertComma nd, myOleDbConnecti on)

myOleDbCommand = myOleDbConnecti on.CreateComman d

myOleDbCommand. CommandType = CommandType.Tex t

myOleDbCommand. CommandText = insertCommand

myOleDbConnecti on.Open()

Dim temp_num As Integer
Try
temp_num = myOleDbCommand. ExecuteNonQuery
Catch ex As Exception
Trace.WriteLine (ex.ToString)

End Try

myOleDbConnecti on.Close()
Thanks...
Jul 16 '07 #1
15 4103
hariharanmca
1,977 Top Contributor
insertCommand = "INSERT INTO tblLogin (username, password) VALUES(desc, itemID);"
Is this desc and item is an variable of front-end.
because

desc is a key word of back-end for Descending order

you cannot pass that as string
Jul 16 '07 #2
yzlin04
18 New Member
now i change the 'desc' to 'description', the same case happen again...i can't see my record inside the MS Access table...

Dim description, itemID As String


itemID = txtItemID.Text
description = txtItemDesc.Tex t

Dim myOleDbConnecti on As OleDb.OleDbConn ection
Dim insertCommand As String
Dim myConnectionStr ing As String = "Provider=Micro soft.Jet.OLEDB. 4.0;Data Source=E:\Lectu re\CS220\Progra m backup 3\Ai Ling Ka Salon System\database \login.mdb;User ID=Admin;Passwo rd=;"

insertCommand = "INSERT INTO tblLogin (username, password) VALUES(descript ion, itemID);"

myOleDbConnecti on = New OleDb.OleDbConn ection(myConnec tionString)

Dim myOleDbCommand As New OleDb.OleDbComm and(insertComma nd, myOleDbConnecti on)

myOleDbCommand = myOleDbConnecti on.CreateComman d

myOleDbCommand. CommandType = CommandType.Tex t

myOleDbCommand. CommandText = insertCommand

myOleDbConnecti on.Open()

Dim temp_num As Integer
Try
temp_num = myOleDbCommand. ExecuteNonQuery
Catch ex As Exception
Trace.WriteLine (ex.ToString)

End Try

myOleDbConnecti on.Close()









Is this desc and item is an variable of front-end.
because

desc is a key word of back-end for Descending order

you cannot pass that as string
Jul 16 '07 #3
hariharanmca
1,977 Top Contributor
now i change the 'desc' to 'description', the same case happen again...i can't see my record inside the MS Access table...

Dim description, itemID As String


itemID = txtItemID.Text
description = txtItemDesc.Tex t

Dim myOleDbConnecti on As OleDb.OleDbConn ection
Dim insertCommand As String
Dim myConnectionStr ing As String = "Provider=Micro soft.Jet.OLEDB. 4.0;Data Source=E:\Lectu re\CS220\Progra m backup 3\Ai Ling Ka Salon System\database \login.mdb;User ID=Admin;Passwo rd=;"

insertCommand = "INSERT INTO tblLogin (username, password) VALUES(descript ion, itemID);"

myOleDbConnecti on = New OleDb.OleDbConn ection(myConnec tionString)

Dim myOleDbCommand As New OleDb.OleDbComm and(insertComma nd, myOleDbConnecti on)

myOleDbCommand = myOleDbConnecti on.CreateComman d

myOleDbCommand. CommandType = CommandType.Tex t

myOleDbCommand. CommandText = insertCommand

myOleDbConnecti on.Open()

Dim temp_num As Integer
Try
temp_num = myOleDbCommand. ExecuteNonQuery
Catch ex As Exception
Trace.WriteLine (ex.ToString)

End Try

myOleDbConnecti on.Close()
and you never explain what is the error








1. Go to MS access views
2. copy your query and past it in query view
3. then execute it using “!” symbol
4. I think description is also reserved word of database


and copy the error
Jul 16 '07 #4
yzlin04
18 New Member
just like the above, there is no error message comes out, so i don't know what is the error.
after i run using "!" symbol, also no error.


and you never explain what is the error








1. Go to MS access views
2. copy your query and past it in query view
3. then execute it using “!” symbol
4. I think description is also reserved word of database


and copy the error
Jul 16 '07 #5
hariharanmca
1,977 Top Contributor
just like the above, there is no error message comes out, so i don't know what is the error.
after i run using "!" symbol, also no error.
change the name descreption
Jul 16 '07 #6
yzlin04
18 New Member
it is still the same as before even i have changed the name "descriptio n" to "test1"
note: i only have one table (tblLogin) and one query (qryLogin) in MS Access.
both of them are empty.




change the name descreption
Jul 16 '07 #7
hariharanmca
1,977 Top Contributor
it is still the same as before even i have changed the name "descriptio n" to "test1"
note: i only have one table (tblLogin) and one query (qryLogin) in MS Access.
both of them are empty.

Refer post #2

and you never explain why you are using description, itemID


if this description, itemID is a string value then you should pass query like

insertCommand = "INSERT INTO tblLogin (username, password) VALUES(‘desc’, ‘itemID’);"
Jul 16 '07 #8
hariharanmca
1,977 Top Contributor
Refer post #2

and you never explain why you are using description, itemID


if this description, itemID is a string value then you should pass query like

insertCommand = "INSERT INTO tblLogin (username, password) VALUES(‘desc’, ‘itemID’);"

i think this is wrong,
login name = Descreption ot test1
password = itemID

just check that
Jul 16 '07 #9
yzlin04
18 New Member
i already changed the description to test1.

i use:
- test1 as a name for the txtItemDesc text field value
- itemID refers to the txtItemID text field value, and the ID is not integer, but string.

i pass in the query:

insertCommand = "INSERT INTO tblLogin (username, password) VALUES ('test1', 'itemID');"




Refer post #2

and you never explain why you are using description, itemID


if this description, itemID is a string value then you should pass query like

insertCommand = "INSERT INTO tblLogin (username, password) VALUES(‘desc’, ‘itemID’);"
Jul 16 '07 #10

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