I am getting headache analyzing what's causing this error message "Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints."I have 7 different sections, each sections has the same subject component, one of which is CLUB. The error will only display for one particular section but for the rest of the sections, the program work fine. All sections uses the same code that's why I am very puzzled with the error. if the code works for the rest of the section one it fails for the one particular section?I have check my table (sql2005 express) and all the records are intact.The error is pointing on da.Fill(Me.Grading_Rpt_DataSet.tblEnrol)of the code below.
There were three similar questions in StackOverFlow but none gave an answer.. If have found why this error in occurring but don't know the fix. I am using Strongly Typed Dataset for my project which is created as a dll for DAL. I have added the Sql Server Table into this dataset using the designer and has created a DataAdapter
I am using/creating a DataTable so the "enforceConstrains" property is not avilable for DataTable.Error message: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.
Windows Form Load Event:
Private Sub Expenses_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load expensesGV.DataSource = listExpenses() expensesGV.Columns(0).Visible = False End Sub
I keep getting this error message (see image). What's weird is it's coming from a "typed" dataset that is bound to a DataGridView and even though I get this message, the DGV still loads with all the data. I've bound this dataset to the DGV thru the designer. Here is the line of code that is erroring out: Me.adpItemMaster.Fill(Me.JewelryDBDataSet18.tblItemMaster) I checked the table and the primaryKey for the tblItemMaster is unique for each row.
When I use the dataAdapter.fill(ds,tableName), it reports an error: "Failed to enable constraints."Yes, I changed the selectcommand.I know if I modified the selectcommand, and if it will take diffrent columns result, this error will be reported.
I have datagridview1 binded to data Table1 (with binding source) . This data table1 is in relation with his child data table2.When I insert new record to table1 I want to refresh datagridview1.
If I use table adapter fill method I get error.TableAdapter1.Fill(Me.DataSet1.Table1) ' error error: Cannot clear table Table1 because ForeignKeyConstraint FK_Table1Table2 enforces constraints and there are child rows in Table2.
I created a typed dataset a day or so ago, then I added a whole bunch of tableadapter/tables with some relationships etc... suddenly out of nowhere it decides my dataset "is not defined". everywhere in my code where i use this dataset now has an error. I tried not to pull out my hair and do a Clean then Rebuild solution... out of nowhere it just refuses to generate code. Object reference not set to an instance of an Object. It would be nice if it was my object so i could find it but it's not.
Curiously I also lost the little database icon on the dataset in the solution explorer.I can still open it in the designer and preview my queries etc... it just wont make the code. it's driving me insane. anyone got a solution?
I'm using Visual Basic Express 2010 and SQL Express 2008 in Windows XP. At first I couldn't add a datasource (the .mdf file for the database) because of a "Operating system error 32" which I seemed to have resolved by giving myself full permissions for .mdf file (by right clicking on the file and going into properties and then Security) and restarting the SQL SERVER (SQLEXPRESS) service. The dataset for the database is in my solution explorer but when I right click on a table adapter to add a query and attempt to open up the query builder, I get the error in the title above.
Is there anyway to catch or display the request failed with an empty response message somewhere other then in a message box, for a example in a text box? Catch request failed with an empty response message
Suddenly today , when I started my computer and went on to open the VS , I got this strange message: Do you know what it might mean ? I didn't installed anything on my PC for a long time, so I can't think of anything ...
how to create an error message by message box to tell the user to enter a number only if they key in a character value?
I MEAN AFTER THEY PRESS THE CALCULATE BUTTON
Private Sub btnCalcFat_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalcFat.Click Dim intFat As Integer intFat = Integer.Parse(txtFat.Text) lblResultDisplay.Text = txtFat.Text * 9 End Sub
I'm using Visual Basic/Studio 2010 Express to run my VB program using MS Access database. I'm going to convert the Access database to a SQL Server Server Express data base so I downloaded SQL Server 2008 R2 Express onto my pc with Windows 7. The installation went fine and I actually converted my Access database to SQL server. I did not change anything in my VB program.My problem: When I run my normal program with the Access database (no changes), I now get an error when it executes the following code:
dr = cmd.ExecuteReader. I get the error System.Data.OleDb.OleDbException was unhandled; ErrorCode=-2147467259; Message=ODBC--connection to 'SQL ServerBilotta-pcsqlexpress' failed.
[code]....
It appears the ODBC is looking for the SQL server eventhough the program is pointing to the MS Access db. How do I get it to NOT look for the SQL db? Is there a default setting for the
I get this error when I try to publish: Error 2 An error occurred while signing: Failed to sign binReleaseapp.publish\setup.exe. SignTool Error: ISignedCode::Sign returned error: 0x80880253
The signer's certificate is not valid for signing.
SignTool Error: An error occurred while attempting to sign: binReleaseapp.publish\setup.exe MITS 2008
I downloaded the .net 3.5 sp1 and it performed a repair but it still will not publish.
I tried to update the button text on a form from a backgroundworker.do_work event, and it failed, with the usual cross-thread exception message.However, by pure chance, I also tried to update text in a system.windows.form.toolstripstatuslabel also from this backgroundworker.do_work event, and it DOES work. Question: why is this? Is it perhaps because theres some kind of implicit shared behaviour with system.windows.form.toolstripstatuslabel?
When i click on my installed VB.net application icon on the desktop,i receive the message : 'Application failed ti initialize property ox700000000000000 ..... click ok to terminate application'.
I created a SQL DB named MainDB.mdf and a small VB 2010 application with some forms and datasets.Everything was working OK until i got a new computer and re-installed Visual Studio 2010 and SQL server 2010 on it. I copied my DB from the old to the new computer and also copied by VB 2010 project to it. I used Windows Authentication to connect to the DB in the old computer and also in the new one, i am using different Windows user account names though.
I was able to connect to the DB in the new computer in the Server Explorer section, i created a new connection string to the DB and i can seed there is data in the tables. When i run my VB 2010 application created in the old computer get error:
"Cannot open database "MainDB" requested by the login. The login failed. Login failed for user 'D630Admin'."
I need to get rid of that error and be able to add/mod/del data from my DB using my VB application as i used to.
(VB.NET) I get this error as soon as I open the application. It works fine on my machine, but when we installed it on a test machine, we get this error.
46 PM -- An error occurred creating the form. See Exception.InnerException for details. The error is: Retrieving the COM class factory for component with CLSID {857C49E7-ADC6-11D1-98C1-0060948CAA0A} failed due to the following error: 80040154. at SLSClaimantWorkbook.My.MyProject.MyForms.Create__Instance__[T](T Instance) in 17d14f5c-
I am writing a program to try and centralise alot of data i have on my network so i can use them as templates and guides. My intension was to have an easy to browse program with links in the program which open the particular file (eg. Word document, excel spreadsheet, pdf file etc).I have very limited programming knowledge and in my research i came across this code in VB which allows the program to open the determined file:
Public Class _010101ProgramTemplate Dim procstart As New ProcessStartInfo("explorer") Private Sub btnProgTemp01_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProgTemp01.Click Dim winDirProgTemp01 As String = System.IO.Path.GetDirectoryName("g:Project Management SystemPMS TemplatesSetupProgramDD-IFC PROGRAM.xls")
I am getting this error. An error occurred creating the form. See Exception.InnerException for details. The error is: Retrieving the COM class factory for component with CLSID {662A2901-FF10-11D1-BE10-00A0C9204FDC} failed due to the following error: 80040154. i tried many thing such as register dll , modfing CPU to 32 and i still see it.
I have completed a VB.NET app .its working very fine from vs2005. Now I am trying to publishing app. My problem is that i got an error when i tried to run exe.I was using five VB6 dll in my app.1)
So i've coded a simple vb project in MS VB 2008. I then copied the contents of the 'bin/release' folder, and tried running the program on another machine. I'm getting 'the application failed to initialize' error. I'm assuming this is because i'm missing certain files, dll's or something. Or should I have copied the obj/release folder?
im using the query builder to create my sql queries I have made many SELECT statements but when i try and use UPDATE i get this error
"Failed to get Schema fro this Query"
I am able to create a "NonQuery" but i dont know how to implement The query will execute when i build in the query builder but when i try and save it the error appears?
I downloaded and installed Visual Basic 2005 Express Edition and it was successfully installed in my system but when I run the application and create a new project then select a template of my choice the status bar displays:Creating project '...'... project creation failed. I tried to reinstalled it again and also repair the installation of Visual Basic 2005 Express but I have the same error all over again.
I get this error:"the type initializer for MyProjectName.MyClassName threw an exception"..My program runs fine on my computer (the one it was developed on) but i get this error on other computers. All are using the same operating system, all have the same .net framework. the class thats giving the error is this:[code]
I am facing another error "An error occurred trying to load the page. Member not found. (Exception from HRESULT: 0x80020003 (DISP_E_MEMBERNOTFOUND) )" performing the following scenario:- Opened a sample VS 2010 WPF project that I receiveved from a co-worker (Project compiles, and run on his machine)I tried to open project properties (Project --> Properties)The project properties panel/window didn't open, all it had was an error symbol (red/white X) and the error message above(HRESULT: 0x80020003).I am unable to view niether the designer window nor the code window (no messages are reported) but the pane where the code/design shoud display is empty, all you can see is the background color.
