Solved

Oledb   command text

Posted on 2013-06-07
9
336 Views
Last Modified: 2013-06-08
Visual Studio 2010  Vb.net

I want to write these values to the database

using this  but I am not sure of the sintax

cn = New OleDb.OleDbConnection
        cn.ConnectionString = (My.Settings.cnStringAdo1)
        command = New OleDb.OleDbCommand
        command.Connection = cn
        command.Connection.Open()
        command.CommandText = ("UPDATE [3320Monitor].MASTERSCHEDULE (BOXES,CUT,CODE) where CODE='" & txtcode.Text + "'")
        command.ExecuteNonQuery()
        command.Connection.Close()

I want to overwrite the records  based on teh TXTCODE.TEXT

The fields I want to update BOXES, CUT, CODE   their values come from a TXTBOXES.TEXT and TXTCUT.TEXT and TXTCODE.TeXT


AGAIN is WINDOWS FORMS 2010 VB
0
Comment
Question by:teogos
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 3
  • 2
9 Comments
 
LVL 25

Accepted Solution

by:
Ron Malmstead earned 500 total points
ID: 39229609
command.CommandText = "UPDATE [3320Monitor].MASTERSCHEDULE SET BOXES='" & TXTBOXES.TEXT & "',CUT='" & TXTCUT.TEXT & " where CODE='" & txtcode.Text & "'"

..also, if you do

Dim RecordsCount as integer = command.ExecuteNonQuery()

You'll get the number of records affected.
0
 

Author Comment

by:teogos
ID: 39229643
command.ExecuteNonQuery()  error here unclosed quotation mark after the character string
0
 
LVL 25

Expert Comment

by:Ron Malmstead
ID: 39229731
Sorry... I forgot a single quote
TXTCUT.TEXT & "' where
0
Salesforce Made Easy to Use

On-screen guidance at the moment of need enables you & your employees to focus on the core, you can now boost your adoption rates swiftly and simply with one easy tool.

 

Author Comment

by:teogos
ID: 39229835
Error converting data type varchar to numeric    BOXES AND CUT ARE numeric on the database I can't change that
0
 
LVL 75

Expert Comment

by:käµfm³d 👽
ID: 39229879
You would be better served if you used parameterized queries.

e.g.

command.CommandText = ("UPDATE [3320Monitor].MASTERSCHEDULE SET BOXES = ?, CUT = ? where CODE= ?")
command.Parameters.AddWithValue("?", Convert.ToInt32(TXTBOXES.TEXT))
command.Parameters.AddWithValue("?", Convert.ToInt32(TXTCUT.TEXT))
command.Parameters.AddWithValue("?", Convert.ToInt32(TXTCODE.TeXT))

Open in new window


There's no error handling in the above, so if either text box does not contain a valid integer, then you will encounter an exception. You would want to account for this, of course. Also, it's not clear from my example above, but the order that you add the parameters to the command object must be the same as how they appear in the query (for future reference).
0
 
LVL 25

Expert Comment

by:Ron Malmstead
ID: 39229883
Then you must have non-numeric characters in the textboxes?

You'll need to check for that in code.
0
 
LVL 75

Expert Comment

by:käµfm³d 👽
ID: 39229885
@xuserx2000

No, you need to remove the single quotes you added in the query from around the numeric values  ; )
0
 
LVL 25

Expert Comment

by:Ron Malmstead
ID: 39230077
ahhh... you're right sir.  But I agree with using the parameratized method though, which you posted.
0
 

Author Comment

by:teogos
ID: 39231855
I got to it work using this
command.CommandText = "UPDATE [3320Monitor].MASTERSCHEDULE SET BOXES='" & Val(txtboxes.Text) & "',CUT='" & Val(txtcut.Text) & "' where CODE='" & txtcode.Text & "'"
0

Featured Post

Major Incident Management Communications

Major incidents and IT service outages cost companies millions. Often the solution to minimizing damage is automated communication. Find out more in our Major Incident Management Communications infographic.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

It seems a simple enough task, yet I see repeated questions asking how to do it: how to pass data between two forms. In this article, I will show you the different mechanisms available for you to do just that. This article is directed towards the .N…
More often than not, we developers are confronted with a need: a need to make some kind of magic happen via code. Whether it is for a client, for the boss, or for our own personal projects, the need must be satisfied. Most of the time, the Framework…
This video Micro Tutorial shows how to password-protect PDF files with free software. Many software products can do this, such as Adobe Acrobat (but not Adobe Reader), Nuance PaperPort, and Nuance Power PDF, but they are not free products. This vide…
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …

724 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question