Error When Retriving Value From Database
May 14, 2012
when I try and run this code it gives me the error that says "Column 'OutwardsRefNumber' does not belong to table ."BUt I am 100% sure this column is in my table. what can I do to correct it?
Dim NewOutwarsDeliveryNoteNumber As Integer
Dim iSql As String = "SELECT MAX(OutwardsRefNumber) FROM NewOutwards"
Dim da As OleDbDataAdapter = New OleDbDataAdapter(iSql, LoginForm1.Conn)
Dim dt As DataTable = New DataTable
da.Fill(dt)
[Code]...
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Feb 3, 2009
with an error message that I am getting when trying to retrieved a record from an MS Access database. I am using VB2005My code is brakinh on the following line of {"Object reference not set to an instance of an object."}Here the code that I am using:
Private Sub RadioSrCecc_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioSrCecc.CheckedChanged
Dim Stores_string As String = ""
[code].....
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Jun 2, 2012
I know this is an easy answer but I'm having trouble finding it online.
I'd like to get the content of a CheckedListBox1 (or ListBox) by specifying a position on the list. For example, retrive the content of the 3rd item on the list?
I know CheckedListBox1.text will retrive the current highlighted content on the list.
I thought CheckedListBox1.SelectedItems(2).text or CheckedListBox1.SelectedItems(2) was the solution, but it doesn't work.
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Oct 29, 2010
I am using VB .Net to connect to an access databse when using several connection sometimes i get this erro "unspecified error microsoft jet database engine" even though i am an administrator on my local machine.
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Sep 16, 2011
this is my code for adding users in my database but it has an error on the INSERT INTO statement.here is the error: Microsoft office access database engine: syntax error in INSERT INTO statement.
vb.net
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
Dim conn As New OleDbConnection(cn)
Dim check As Integer
[code]....
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May 18, 2009
I recently upgraded the MS SQL Server installed on my personal computer from 2005 Express to 2008 Express. Problem is when I try to add an SQL database file to a project using VS 2005 I get an error message saying that the version of my database server is not supported, I must have SQL Server 2005 Beta 2 or later installed. I didn't do it yet but I'm pretty sure that when I open the other projects that I included a database file to it, I'm going to get the same error.
My question is it possible to have two SQL Servers installed on my machine? If so, is it a good idea to have two DB servers in the same machine?
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Jul 20, 2011
When I install my application, some forms are unable to connect to the database.
I say some because, when my login form works totally fine. Authentication happens.
But once I go into the main application, and open other windows, I start to get these error mesages:
[URL]
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Jan 15, 2012
i am using the following code snippet to backup/restore database Backup works fine but when i try to restore i get this error "RESTORE cannot process database 'LIC' because it is in use by this session. It is recommended that the master database be used when performing this operation. RESTORE DATABASE is terminating abnormally."
[Code]...
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Feb 5, 2009
i am building my first VB.net application with a connection to an Access database. Now, this works fine when I debug, however when I deploy the application I get the error saying "Could not find file", which I assume means i have got one of the publishing settings wrong? I don't think it is a code error because it works when I debug, but if anyone wants to see part of it please let me know.
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May 1, 2011
i want to connect a database to my project but i am getting an error on this line
"Data Source=.SQLEXPRESS;
AttachDbFilename="c:userscjdocumentsvisual
studio
[code].....
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Nov 15, 2011
I'm writing an application to update a database with student records. I've used this particular code before, but with just a single column, but i added multiple columns to this one. when i call the sub to save the records it gives me this exception:syntax error in INSERT INTO statement at line 41
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Jun 17, 2009
I'm building a vb.net database program and have run into a small problem that I have not been able to figure out.Imports System.Data Public Class Form1
[Code]...
the line "dataAdapter.Fill(dataSet,"Address") " will cause an error when the program is run. "Syntax error in query. Incomplete Query Clause." is the error shown. If I comment that line out the program runs perfectly. Everything that I have seen (and gone by as a tutorial for Database work) has shown that line of code working fine. have I missed something?
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Dec 7, 2009
I used a code to get the dates between 2 dates from the database (column with dates dd/mm/yy) , I think it works nice first time,[code]as you see , the code let the user to insert a number and minus it form the date of today , then calculates the date that I want , after that I use BETWEEN Clause to get all dates between them But now , this code gets some data and overpasses others , I mean some of the dates is between the tow dates but the code never get it , why that happens ?
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Mar 31, 2010
I have this application that updates information to a database. I had it working but whether I have deleted or changed something accidentally I don't know. This is the error that appears:
See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.InvalidCastException: Conversion from string "SBS-resources" to type 'Integer' is not valid. ---> System.FormatException: Input string was not in a correct format.
[code]....
When JIT debugging is enabled, any unhandled exception will be sent to the JIT debugger registered on the computer rather than be handled by this dialog box.
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Jan 20, 2010
I would like to know if how can I update my database using oledbCommandBuilder below here is my code:
'save changes made and store it to our database
newDataRow = ds.Tables("employeeTable").NewRow()
newDataRow.Item(0) = comboPosition.Text
[Code]....
The error that I get is "Syntax error in INSERT INTO statement." It almost took me 1 day but I cant configure how it still become error. below here is the part where the error came from
da.Update(ds, "employeeTable")
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Apr 3, 2009
i am new to Visual Basic, my operating system is Vista. I started a new project, tried to connect to a database, but keep getting the following error:"cannot open log for source 'VBExpress'. You may not have write access."
I searched the internet for an answer, but only found answers if I were running Windows Server 2003.
Has anyone encountered this problem before? If so, do you have a solution?
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Aug 15, 2011
Continuing on from my adding data to the db I am using the following to try and update the db[code].....I get error while updating record on table...Incorrect syntax near ','? I can't see where it is getting this from? the the dropdownlist.text ="RC1
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May 14, 2012
Dim NewOutwarsDeliveryNoteNumber As Integer
Dim iSql As String = "SELECT MAX(OutwardsRefNumber) FROM NewOutwards"
Dim da As OleDbDataAdapter = New OleDbDataAdapter(iSql, LoginForm1.Conn)
[code]....
when I try and run this code it gives me the error that says "Column 'OutwardsRefNumber' does not belong to table ."BUt I am 100% sure this column is in my table. what can I do to correct it?
View 1 Replies
Oct 13, 2011
I am working on a school project but I am getting an error when I attempt to save an altered dataset.
[code]...
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Mar 9, 2009
When I try to add item -> select Database -> this is my error: <cannot open log for source 'vbexpress' , you may not have write access>I have checked my permissions under the security tab for each poss program SQL2008 and VB.Net 2008 Express, also have opened the VB.Net Express as admin, none of these fix it.
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May 14, 2012
I have simple application with MS SQL (.mdf) database. It's all works fine on my computer, but when I run app on another computer, and when I try to add new data I get error: "Failed to update c:\program files\..database.mdf because the database is read only".
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Sep 5, 2011
I have done a windows application VB.NET with access Database. while working on it, i had the database path
Private ConStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source= C:\LBCvehicles.mdb;Persist Security Info=True"
But since i wanted to deploy this project and install it on another pc i dint want the DB file to stay on C so i added a new folder to my project "DB" and added to it the access file.
Private ConStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source= .\DB\LBCvehicles.mdb;Persist Security Info=True" and i tried it before deployment everything worked fine.
I deployed the application and when running the setup file i got the following error :
"The folder path'.' contains an invalid character"
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Oct 7, 2010
Code:
Private Sub RandomID()
Dim conn As MySqlConnection
conn = New MySqlConnection
conn.ConnectionString = cnString
conn.Open()
[Code] ....
I am getting error here
LastID = comm.ExecuteScalar()
When db is empty, but if db has records it is working fine.
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Jan 17, 2009
This is what I'm getting when I try to connect my MS Access mdb database to my program. It keeps asking me to enter a connection string and when I do this is the error I'm getting."Format of the initialization string does not conform to specification starting at index 0.
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Mar 21, 2011
I want to record from listbox with the following code into a sql database.But,it's gives me error.Here is my code.I show error line the following code.[code]
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Dec 28, 2011
Dim ds As New DataSet
Dim da As OleDb.OleDbDataAdapter
Dim dbProvider As String = "PROVIDER=Microsoft.ACE.OLEDB.12.0;"
[code].....
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May 27, 2010
i can't find anything's wrong but the the program keeps prompting syntax error
Code:
sql = "UPDATE tblclients WHERE Key_Contact_Person ='" & txtclientname.Text & "' SET (" & _
"[position] ='" & txtposition.Text & "'" & _
", [Deptment] ='" & txtDept.Text & "'" & _
[code].....
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Sep 19, 2011
I have an html string that is dynamically created server side.
strHTML = "<td><a href""google.com"" onclick=""SaveToDatabase('" + arrString(0) + "','" + arrString(1) + "')""
The value of arrString(1) is javascript:OpenDoc('ProductManual.pdf','vbShowDoc')
Error Message: Expected ')'
How can I encode this value to save in the database, and decode it when retreving it from the database ?
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Feb 11, 2011
Is there a way to catch a database exception and then redirect to an error page? I have a data access class that I use to make a sql connection and then functions that call it to execute my SQL commands. My problem is that if my database is not available I cannot catch that error. Here is the code I am using in my class[code]...
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Apr 23, 2012
I'm trying to update a record in MS Access database with the code below. But it says 'Syntax error in UPDATE statement and highlights cmd.ExecuteNonQuery()'.
[Code]...
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