Add User To Access Database But It's Doesn't Work?
Dec 21, 2011add user to access database but it's doesn't work the problem here
SavInto.ExecuteNonQuery()
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Loged ON User COde Doesn't Work In Some Computers
Jun 22, 2010I have this code that gives me the user logged on name of a remote computer, but if i run the program in certaing computers, it returns with the error "Not Available Due Restrictions" which is set if the scope cant connect... why it connects fine in some computers and other not..is there something i have to add to the code for it to run fine in any computer
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Text Property On A User Control Doesn't Work?
Feb 24, 2012I created a simple user control with a label, and one property that allows me to set its text.I can call the property Text2 and everything works well, but if I call it Text it doesn't work.
I tried both this:
<Browsable(True)>
Public Overrides Property Text As String
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OledbDataReader Doesn't Work With Union Query In Access DB?
Sep 21, 2011I have two tables say "Table1" and "Table2". I made a UNION query and saved it as "AllTimesFailure". It is worth mentioning, I am using Access DB. When I am trying to fetch the records from AllTimesFailure through oledbDataReader, it says "The Microsoft Jet database engine cannot find the input table or query 'AllTimesFailure'. Make sure it exists and that its name is spelled correctly.". I double checked query name and found correct but the problem still exists. when I run the same query as I pass through my command object, it works fine in Access query analyzer and fetches records normally.
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VS 2005 Change A Datatype In Access, Datagrid Doesn't Work
Aug 18, 2010
I have a VS2005 utility that I'm working on that has an Access 2003 backend. A couple of days ago, my boss asked that I change one field in two tables from TEXT to MEMO, to allow more information to be put in. In doing some final pre-deployment testing, I find when I hit my button to pull up the list of tickets, I get the error
"System.Data.ConstraintException was unhandled
Message="Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.""
The datagrid is based on a query I have in the database. The query runs fine, and when I go through the XSD and go into Query Builder, the QB is also returning data. I have made the various changes to the utlity as suggested by Microsoft, but no luck. When I put the two columns back to TEXT, the Grid works fine.
How the heck do I set it up so that the grid will recognise the new data format? The number of characters for the individual columns is set to 37,627 (I believe, it's whatever the default is). I only have 200 characters in my test data. I need to rebuild the whole dataset - this deployment has to be done by the end of the day tomorrow and I have a whole pile of other stuff left to do.
Database - GetdataBy Date Doesn't Work?
Apr 9, 2010I am trying to pull the data by date in vb.net. It is not throwing the error nor giving any result. Whereas It shows the results in table adapter configuration wizard when I try through query builder. I am using date time picker in the form. But I have formatted the date in the database as date.
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Database Application Does Not Work On User Machine If Database Is Password Protected?
Jan 20, 2011In vb.net I am using password protected database with following connection stringconnetionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:vaivaiDB.mdb;JetOLEDB:Database Password=secret;"Database access works fine on the development machine.
View 2 RepliesExample Code To Work To Access An Access Database Through Automation?
Oct 13, 2010I have a similar problem posted in the forum similar to this : started learning VB. I am not able to get my example code to work to access an Access database through automation. The author of my book suggested that I might not have the correct Jet 4.0 engine. The specs I have are: MSJet40.dll, Dated 7/14/2009, Prod Ver 4.00.9756.0.
View 3 RepliesTooltip On Windows 7 Doesn't Work VB2010 - Thecolor Doesn't Change ?
Jun 12, 2011I am trying to change the background color of a tooltip
I am using tooltip.backgroundcolor = color.colr
No errors but thecolor doesn't change
Data Access - Read And Write Images From A Database Doesn'?
Jul 26, 2009i've download the 101 Visual Basic and C# Code Samples from downloads/details.aspx?familyid=08E3D5F8-033D-420B-A3B1-3074505C03F3&displaylang=en i was going to learn "VB.NET - Data Access - Read and Write Images from a Database" from that 101. the program is written in 2003 the conversion of the problem to 2005 and 2008 failed.
View 3 RepliesPerformClick() Doesn't Work - How To Make It Work
Feb 2, 2011I have an application that requires data be entered, and after entering, a button is clicked to process that data. Clicking the button works just as it should--the data is processed properly. In constructing a test module, I provide a set of data values, followed by:
btnWhatever.PerformClick()
Nothing happens. I have used this syntax for years, and it has always worked flawlessly. I have triple checked everything else and isolated the problem to the failure of the PerformClick(). The PerformClick() is in a test subroutine that does nothing but fill textboxes and labels with default data, then calls the PerformClick() on the button to begin processing. Again, the button works fine, the data is entered as it should be, but the PerformClick() does not fire the click event.
DataTableAdapter.Update Doesn't Insert New Records In The Linked Access Database
May 20, 2010I am writing an application that does a number of different things with data downloaded from hardware which is monitoring the power used in my home and produced by my PV Solar array. I have run into a roadblock early on, because I cannot seem to get new data into an Access database that I have linked to my application by means of a DataSet. I have checked the DataAdapter's InsertCommand, DeleteCommand, and UpdateCommand definitions (created by the DataSet Wizard), and they seem to make sense, and nothing is throwing exceptions or otherwise making VB complain, but new rows added to the dataset are not being added to the database.
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Access Database Connection And Work With It Using ADO Objects?
Oct 11, 2009I opened vs 2008 and used the server explorer for the first time to create a connection to my SQL 2005 db. The solution explorer pulled in all the tables, the database diagram etc. My question is how do I access that database connection and work with it using ADO objects? Do I need a reference to ADO?
View 4 RepliesRun Computer But Program Does Not Work As It Cannot Access Database
Mar 18, 2012I made a program that i want to run on computers at school and it utalizes a MySQL database. When i try to run it the program does not work as it cannot access the database. I open the code up on my computer at school and it has errors saying ti does nto recognize the MySQL code as it does not have it in its .Net library. So i try to download it into the library but that does not work. So my question is, will programs using any kind of database not work unless the user installs the needed add on, weather it be a .Net library add on or a java add on for MySQL? That cant be right it.
View 4 RepliesUpdate Access Database Error (save Button Not Work)?
Mar 10, 2011my save button not work
Private Sub btn_save_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_save.Click
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Making A File That The User Doesn't Have Access To And Changing The Location Of The Configuration File?
Jun 25, 2011on my program i have an activation in it and in order to activate the program you need to enter a code that is stored in the settings. so i was looking through my computer and i found the programs config file. and so I opened it and i found all of the codes for the activation. I need to find out how to make the file so the user doesn't have access to it and then how to move it to a more hidden place in the C: drive.
View 3 RepliesCreated An Access Database - Display Items In The Database Base On The Criteria Selected By The User
May 29, 2009I have created an access database which i want to search with vb.net, I tried a few thing but it didnt work as desired.
Firstly the program is suppose to display items in the database base on the criteria selected by the user. what i've succefssfully done so far is I've added a datagrid 2 combobox, 1 (searchcbo) with the columns in the database and the other (searchcbo1) will autoload the items under the column selected in and a button (searchbtn) but i have no clue of the code to put in the button. i also tried the fill method but that didnt work as i wanted to. ultimately i want a combobox with the list of columns and a textbox to enter criteria and of course a search button.
The searchbtn should act as the "WHERE" sql command, e.g. SELECT EmployeeNumber, Firstname, LastName, Phone, Location....etc FROM CallLog WHERE searchcbo.text = searchcbo1.text And display the results in the datagrid.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'CallLogDataSet.CallLog' table. You can move, or remove it, as needed.
Me.CallLogTableAdapter.Fill(Me.CallLogDataSet.CallLog)
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User Either SQL2005 Or MS Access Database?
Mar 6, 2009I am new in programming and I am using VB2005 and I can user either SQL2005 or MS access database.Here my scenario:I have created a project where the user can add a new record, (Support Desk) there are times when a new record is added, it may need a backup (Pictures, Document)to be included in regards the problem.
I need to know if anyone has some sample code on how to attached any type pf file (jpeg, BMP, doc, txt, PDF, excel) and be able to save it to the database.
Alert Allow User To Select Access Database?
Apr 4, 2011i want to allow user to select or find access database file when the software is executed/opened for the first time. after user selects the file and as he clicks open the software shows the full path of the file and then stores it with the provider and datasource in a txt file for future use.
View 3 RepliesUser Credential Lookup In VB To Access Database
Mar 11, 2011I have a program which I am securing with a Username and Password box, in which the user enters their credentials. In the database, the username is a number field (VB would not accept this as a string and was looking for it as Int32). And the password is a text field. I have the form linked to the database by an OleDbConnection with a DataAdapter (DaUser) and DataSet (DsUser). I am using a datarow which I have declared at the top of my code i.e. Public drUser As DataRow. The problem arises when the user enters their username and password.
The following code searches the primary key row of the database (Username)
drUser = DsUser.Tables("User").Rows.Find(txtUsername.Text)
When the Username entered does not exist, I'm getting this error when trying to display on the form the users email:
NullReferenceException was unhandled - Object reference not set to an instance of an object.
I've tried both if statements and try/catch to basically say if the Username doesn't exist... display an error message etc.
VS 2008 - Adding New User To Access Database
Jul 10, 2009My aim is to try to add a new user to a access database. Im doing this using from a form named frmRegister. It seems like the code is working perfectly, and I get no expectations that indicate if any errors occurred. However, the user doesn't get added to the database.
The code I'm using is:
Public Class Register
Dim connectionString As String
Dim connection As OleDbConnection
Dim OLEDBAdapter As New OleDbDataAdapter
Dim OLE As String
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VS 2008 VB Database New User From Access 2007?
Sep 29, 2009I have decided to quit using Access and trying my hand a VB.I am wanting to create a database with Forms for entering Address's.
View 1 RepliesVS 2010 Check The Access Database For The User
Mar 20, 2011I need help with the code to make it so when a form loads it will check the Access database for the user and if that user is present, then it will load their selections. Otherwise, if no user is present it will add a new row to the database and display nothing.
View 2 RepliesInsert LoginForm User ID And TimeString Into Access Database?
May 29, 2010cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and SettingsKashifDesktopDesktop itemsvalid.mdb;")
View 2 RepliesDatabase - Replacement For Ms Access Db For Multi-LAN User Purpose?
Apr 27, 2012I have been using access for my applications from over 4 years now. I realize its time to move on now and i need suggestions for a new database. Here are my requirements :should be able to connect it with Vb.net windows form frontend GUI - all database functions such as add/delete/edit/update will be done through the vb.net front-end only.Should be able to place the db on LAN and each client on the LAN can then access the centrally stored db through their individual front-ends.At the most 5-6 users will be reading/writing to the database at the same time , so the database should not crash or slow down Since i come from MS access background, i would like something thats similar to it so that i can learn and adapt to it quickly.Not very important, but i think its worth mentioning. This db will be the main central db for my .net application.My .net application will also be interacting with quickbooks and magento via some apis but ultimately all this data will go to the central db. So just curious, will there be any compataibility issues with the database that you suggest Should handle about 10 tables and around 10k records in each table Should be secure - just that i should be able to lock it up or anyhow prevent it being accessed from anywhere else other than the vb.net front-end.
Lastly, I would prefer it to be free to use if possible but not essential. I realize there are some topics like mysql vs sqllite and on databases, but pls understand i need suggestions for one that will be apt for the purposes i have listed above.
Edit : Just curious - Would i pushing the limits if i still stick to access - i understand access won't be good for multi-user access but i guess 5 users is not much ?
Get Informations From A Database To Manage The User Access Level?
Sep 3, 2008I'm writing a form that get some informations from a database to manage the User Access Level.The way i do that is to Fill a Dataset by using a DataAdapter and the Bind some controls to the Dataset.The controls i binding are a ListBox, a Textbox, and five Checkboxes.All are fine with this controls. I can delete values and update values, i can choose a record from my ListBox and the values of this record to be desplayed on the othrer binded controls and so on.
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Making An Access Database Shared By Multiple User
May 8, 2009Not sure if this is the right Forum to post this question. If not guide me where to post... I have an Access database that I would like to be able to share with Multiple user cuncurently... I have seen it is being done but I am not sure how? Or may be I should be using SQL Express.
View 1 RepliesOpen Access Database Based On User Input?
Dec 3, 2009I've been working on an application for awhile that, basically, allows the viewing and printing of a maintenance database. It allows the user to view basic information for the object and then view the maintenance history. My approach for the maintenance history is simply to have unique tables per object since a history has to be kept for each, however, I'm running into a problem in the application that allows the user to view the general information from one DB and the Maintenance history from the other DB.
Say you have Object ID BG1. I can enter the object ID into a search field, pull the data from the general DB and display the data, but I also need it to pull the information from the maintenance history and display. If maintenance history for this object is not found, then create a new table within the DB, fill the columns with the required fields and allow for the user to edit the history.
Search Or Get User Data From Access Database (Tables)?
Apr 17, 2011I have a form with 5 fields(inputs). When I entered data in the form and click submit, the data is entered into an Access 2007 Database(Table). All the set up (connection) is working because the data table is getting populated with the user info. However, I also need to search the database by entering a name in the name text box and clicking a button.
This is suppose to populated all the fields with information from the data base if the user exist. The search part is not working. I have no more hair to pull. :) Here is the code:
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.net - Datagridview Doesn't Work
Sep 13, 2010Possible Duplicate: Datagridview doesnt work! I have written code to show records in a datagridview but it shows nothing. I have tried to debug & when it step into GetData function following codes
Catch ex As Exception
returnData = Nothing
If connection.State = ConnectionState.Open Then
connection.Close()
End If
become gray & it shows error sign. When I take my mouse pointer on it it shows message. It says "Cannot open database SUIMT requested by the login. The login failed. Login failed for user 'MY-PCJames'".
Imports System.Data.SqlClient
Public Class Form34
Private Const ConnectionString As String = "Server=.SQLEXPRESS;" & _
"Database=SUIMT;Trusted_Connection=True"
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