VS 2010 : Errors Opening App And Data Won't Load From Access Database That Was Working
Jun 12, 2012
I must have inadvertly messed up my data connection but not sure how to fix it. when I check the table adapters I can view data but when I load the app I get these errors and no data loads, how can I look at this log and make sense of how to fix this?
************** Exception Text **************
System.Configuration.ConfigurationErrorsException: Configuration system failed to initialize ---> System.Configuration.ConfigurationErrorsException: Only one <configSections> element allowed per config file and if present must be the first child of the root <configuration> element. (C:BungeAppsBunge Post InstallerinDebugBunge Post Installer.exe.Config line 7)
[code]....
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Jun 22, 2010
sample code or project on how to load a data of a particular table in access database in to a data grid view
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Jan 4, 2011
We have designed an application designed for storing contact information of students (college study project).The application installed perfectly on Windows XP Home Edition (Service Pack 3). We also installed all the requirements (including .net 4) on the XP machine. But when we tried to work with any form that is linked with data, it pops up an error saying something about invalid casting for system.oledb.data and system.string.What may be the problem? This application runs fine on Windows 7, also loads fine in Windows XP Home Edition SP3. BUT when we open a form that has database linkups the above error pops up. Is it in anyway related to the .net framework? Which is possible our biggest doubt!This is really getting frustrating, as my group has worked really hard on this project. But, our prof., says that the project should work on Windows XP, but he is also stumped, with the reasons.
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Jun 22, 2010
I am trying to import data from an access database to a access database that my project uses I am having problems with combo box fields in the database with the data. I want to import what is displayed instead of the numerical key value. Example: The combo box displays employee names but the value stored is the key value from the employee table so instead of importing John Doe it imports 2 is there a way to make the actual name instead of the number?
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Mar 12, 2011
I am developing an application with VB.net and SQL Express. In my application I have many forms as : some of my forms are :
Mainform
selectmonth_form
Form_report[code]....
Forms load normally and also show all data in form_report. With this code these forms open as new windows, but I want to open windows as child window.
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Oct 7, 2008
Using Access I created a few Data Access Pages. These web pages, once opened, work fine to manipulate data as intended, but they keep generating annoying warning messages.There are two messages that pop up every time the web page is accessed. Before the page opens the first message that pops up states: "This website uses a data provider that may be unsafe. If you trust the website, click OK, otherwise click cancel."After pressing OK on the first, the second message pops up and states:"This website is using your identity to access a data source. If you trust the website, click OK, otherwise click cancel."After pressing OK on both messages the page functionality works just fine.I've tried adding password protection to the database and even signing the project with a digital certificate, but I still get the warning messages. This would be fine except there are multiple end users for the access pages and I am trying to avoid the additional confusion this will create, especially since IT has restricted many of the users from editing the internet options.
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Jan 13, 2011
I have the following code to delete a row in an Access Database Table. It executes with no errors, but the row is not deleted.
Code:
Dim adpMasterRecipe As OleDb.OleDbDataAdapter
Dim dsMasterRecipe As New System.Data.DataSet
Dim iIndex As Integer[code].....
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May 31, 2011
I have an MDI parent screen that loads on startup and a lot of child forms that load when opening. So as the child forms load there's a lot of flashing and it looks really ugly. Once they're loaded all I have to do is use a bring to front, maximized command and it works smoother than closing a form and opening a new one every time a different form is selected. I've tried creating a splash screen, minimizing the forms on load, etc and everything still works in order so first the splash screen then the forms load.
How would you set it up so a splash screen stays on top of all other forms for like 5 seconds while the forms load in the background without seeing them load? Right now the screen shows then when it's done it moves on to step 2 which is loading the child forms. If no splash screen, how do I make it load so you don't see all the child forms opening at once?
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May 19, 2010
I am trying to build a front end for an access database I created I can connect to the database but when I try to pull data into a data grid view I get no results Here is the code what did I do wrong(I'm also new to vb)
search
Private Sub searchbtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles searchbtn.Click
Dim srval As String
Dim type As String
[code]....
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Dec 6, 2011
Dim Conx As String
Dim DBx As String
Conx = "Provider=Microsoft.ACE.OLEDB.12.0; "
[Code]....
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Jul 27, 2010
I'm using this code to update my access database.
[Code]...
If i run the program in debugmode and then do a update it will be saved to the database.(must stop and run again to see the update. How to se the update directly?)
My main problem is that if a build the program and run it outside VS then update never being saved. How can i solve this. I tried using "commit"(maybe totaly wrong) but that didnt work.
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Jul 12, 2010
After i learned how to search in database i will try to update it with more data.I managed to succeed with one form, but with multiple forms i dont.
Public Class laggtill
Private OleDbInsertCommand1 As System.Data.OleDb.OleDbCommand
Private OleDbConnection1 As System.Data.OleDb.OleDbConnection
[code]....
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Apr 20, 2010
I create a database like this:
Sub Main()
Dim wrkDefault As Workspace
Dim dbE As DBEngine
[code].....
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Mar 21, 2011
I have a VB 2010 program with a single-table Access Database.I have selected the option to copy the Access Database to the output directory.When doing so, the program copies the original database to the inDebug folder.I want the original (NOT the copy) to be modified when the program is being tested.Also, when I attempted to publish the program and run it to test, I got an error which was sourced to be a temporary file (which was the database) that was missing.I think this is a reaction from the "Copy Always" option.
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Jun 20, 2012
VB 2010 Express + MS Access 2003
today I successfully configured an interface to work with a test database I created in MS Access 2003. The database consists of only 8 records with 10 fields.
I used the basic built-ins with VB 2010 to build the interface in a simple form which shows only 6 of the 10 fields. It all seems to work well, that is the connection string built correctly, and I can run the program and view the individual records. My trouble is that when it goes to the 1st record it's actually the 3rd record in the database. And when I go to the last record it's actually the 2nd record in the database and the next to the last record is actually the first record in the database.
why the program seems to start at the 3 record and shifts the first two records to the end. All the records show up, it's just that they are somewhat out of order.
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May 18, 2011
Everytiem I try to access data, like herejust to view it, or edit the table schema or something, the data resets
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May 7, 2012
How to display data from the database (records) in a vb.net application without a datagrid (i.e in textboxes, and labels) ??
I have used "Add data source and connected my database and also associated the data bindings" but still it doesn't work.
I will attach an image to depict what functionality i'm basically looking for..
[URL]
I want to populate the highlighted controls from a database.
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Feb 15, 2012
How to refresh data gridview of an Access 2007 database using Visual Basic 2010?
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Jun 4, 2011
im having a problem i have a startup form now when it load its check the date and check the date that comes from the database now i got i want after the first try now when i try to log out (after log out click the startup form show) and the code does not execute in the startup_load event i use me.hide to close my startup form after login.. is this the problem thats why after 2nd try it does not execute my startup_load event how can i resolve that i use me.dispose but it close all my program..
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Mar 4, 2011
I have the following asp:HyperLink which opens in ColorBox:[code]The above works fine if the Eval("album_name") is without space. The problem is when i have spaces the colorBox doesn't open. For example: delete_album_confirm.aspx?AlbumName=testing album cover& PhotoFilename=resized_ CIMG1426. jpg&AlbumID=41..Can anyone tell me how I can use spaces and still get this working?
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Oct 11, 2011
I have developed a windows forms application in vb.net 4 which connects to a MSSQL database. I have used the built-in tools to add the data source, data connection and data set. (Data->add new data source-> etc.) The application is installed on staff laptops which may or may not have network connectivity and may or may not be able to access the server on which the database is held. Obviously this is causing unhandled errors when the program starts and tries to make a connection to the database. (using windows credentials) Does anyone know where in the code the connection is made so I can go in and add some error handling? Or any settings I can change to get visual studio to handle the errors nicely?
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Feb 2, 2011
I have one DataGridView and im trying for it to show whats in my SQL database. But when i try to open it, it says the file is in use. I found out that SQL Express is using it, but it isnt even open! So how do i close the databse in the SQL Express?
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Nov 22, 2010
I'm new to visual basic 2010 ultimate. I want to make a search button to "search" ms access 2007 database for specific data and display the results in datagridview. I also want to display the data to textboxes.
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Jun 4, 2011
I can save my data to access database and in the access database field I set it to date/time.But problem is when I get the value out from the database.. the format is always month/day/year hour:minutes:seconds example today: 5/2/2011 12:00:00..How to get the value into listview becoming May/2/2011 without the hour..Here's my code to get it from database ListView1.Items(i).SubItems.Add(dt.Rows(i)(14).ToString).The second problem is.When I would like to edit, how can the datetimepicker get the listview value ? [code] info: using access 2003 (.mdb) the Date of Birth field has been set into Date/Time.
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Jun 24, 2009
I'm not sure what happened. I saved my project last night and everything was in working order. I opened it this morning and it's not recognizing a lot of the System methods and functions
MsgBox
Format
FormatCurrency
InputBox
Even the constants like vbTab and vbCrLf aren't appearing. Any suggestions on this? I'm running VS2008 Express Edition.
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Mar 28, 2011
i'm a freshman and was handed this assignment a short while ago and i'm having extreme difficulty figuring out why i keep getting the following error message whenever i click btnGenerate.Click on the form:Error1: Unable to apply this change while debugging. 'Private Sub GroupBox1_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GroupBox1.Enter' was deleted that modifies 'Public Class Form1'. You must revert the change or stop the debugging sessionBasically the assignment is requesting that we build a 'Call Cost Calculator' and since im relatively new to this i've never worked with strings before and also get the follow errors:Warning2Variable 'sCountryBeingPhoned' is used before it has been assigned a value. A null reference exception could result at runtime.Warning3Variable 'sPhonePlan' is used before it has been assigned a value. A null reference exception could result at runtime.
My form codes:
vb
Public Class Form1 'heading Const sFormHeading As String = "Call Cost
[code]....
I reals because it's driving me mad and i'm honestly quite literally stuck and can't move on until i get this sorted.
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Aug 29, 2011
for the first time i am havin this kind of issue, i tried some google'in Private Sub frmMain_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[Code]...
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Jun 21, 2010
I have 1 tabcontrol with 2 tabpages, each tabpage with 1 datagridview (different tables for each), I load these 2 databases on the form load:
Me.AnndepTableAdapter.Fill(Me.HonorDataSet2.anndep)
Me.SysdepTableAdapter.Fill(Me.HonorDataSet.sysdep)
Dim sql1 As String
Dim con1 As New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=C:UsersuserDesktophonor.mdb")
[code]....
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Feb 12, 2010
I am having a problem with using the SQL Server 2008 FileStream function with an Excel 2007 spreadsheet. I can store an Excel 2003 format spreadsheet and bring it back with no problem. When I bring the Excel 2007 format spreadsheet back from the DB I get a message that there are errors in opening the Spreadsheet and the Excel App asks if I want them repaired before it is displayed. I answer yes and the Spreadsheet is renedered perfectly. Could this be a FileStream problem or an Excel 2007 problem?
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Aug 15, 2011
I start program for a library and I have to use Treeview and Access DataBase..I find methode to load database to treeview but the problem is save changes after I run program Access Database load to treeview and I edit tree but how I can save changes before I close program?
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