Sql - SQLCE Query Having No Effect?
Aug 28, 2011
I'm attempting to insert rows into an SQLCE database, and it's returning that 1 row is affected, there's no exception, and no syntax error in the query as far as I can see - but it's having no effect, when I look in the table from the Database Explorer.
Here's the code, though it probably doesn't make a difference:
Using conn As New SqlCeConnection(My.Settings.DietSafetyCheckerReportsConnectionString)
conn.Open()
Using cmd As SqlCeCommand = conn.CreateCommand()
[code]....
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Aug 3, 2009
i'm trying to display a certain row from a sqlce DB, what shuld the sql command be? i'm using sqldatareader
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Sep 15, 2009
I am trying to add a new record to a table, well first it checks if there is already a duplicate record in the table, and if not it makes one. If there is a duplicate, it tells the user.[code]
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Nov 10, 2011
First off I would like to apologies for multi posting as I posted this on the SQL forum but someone did suggest putting it here. Here is my problemOkay have developed a form in vb.net cf using sqlce. I know this is the vb.net section but I feel it's a data issue. I have a table called STORES which has a primary key of two columns (ST_STORECODE & ST_CY_CODE)
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Nov 20, 2011
i want to insert onto a SqlCe (sdf) a data that contains a birth date, it reads from a .csv the TextLine(5) is the date in string format: "ddMMyyyy"
i convert to a VB DateTime(), it converts at this way: Day/Month/Year.After that, i insert it to the sql, everything good but the problem is, on the database is always showing as 01/01/1900, what im doing wrong?
Also i put a Console.WriteLine to check if there is any error, no errors as i expected.
apadronado.fecnac is an DateTime also my provider is an cultureinfo is an en-US
[Code]...
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Oct 19, 2009
i have design a window base application by using VB.NET 2008 and use database SQLCE 3.5 SP1. The application is working fine on all the window 32bits system, but if executive on window 64bits (like windows Vista 64) come out this error message.
[Code]...
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Sep 14, 2009
I have used Access databases before so thought I'd try something different. My problem is that when I try to add a new record to one of the tables in the databasethe code runs through fine, but the data is not added into the table :S have probably missed something simple, but it's been a while since I did any projects using a database.Here's my code:
Imports System.Data.SqlServerCe
Public Class Form1
Dim con As SqlCeConnection = New SqlCeConnection("Data Source=C:UsersMattDocumentsVisual
[code].....
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Jun 3, 2009
I get an error using the connection string (url...) to connect to my SQL CE saying that "Provider 'Microsoft.SqlServerCe. Client.3.5' is not registered in the local PC.".In my project I have a table connected (with the wizard) to the same database and it works fine, but when i try to connect with my own code it FAIL. [code]
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Jul 22, 2009
I have filled a DataSet from a SQL Server table and I have also set up synchronisation with a local copy (for offline use). The local copy is saved to a SQL Compact Editon database file.
1. Create the connection string to the SQLCE DB
2. Execute a stored procedure (a copy resides in the DataSet) against the SQLCE database
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Feb 11, 2011
My app currently uses both SQLExpress and SQLCE, depending on the choice of the user.In my database class I have non query command objects for the CE connection and non query command objects for the express version.
Essentially, this is duplicating code as Parameters.Add etc. has to be repeated on both objects.Is there a way just to add do it once on a common object?
Dim MyConnection As SqlConnection
Dim MyCEConnection As SqlCeConnection
Dim MyNQCommand As SqlCommand
Dim MyCENQCommand As SqlCeCommand
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Oct 24, 2011
I am having some issues with an application written in VB.net.
As part of a routine, an sqlce database gets backed up before the routine then if an error occurred gets restored. I am using system.io methods copy and delete.
I have released all the objects (connections, commands, datareaders) asscociated with the sqlce database by disposing them if they are not nothing. I also do a GC.COLLECT however when my delete command runs, an error message says it is open by another process. The PROCEXP.exe process explorer tool says it is attached to 4 undefined processes. After a while in debug mode, these clear and I am able to delete the file. However this is not acceptable as my program cannot "wait around" until they are released! I was under the impression that object.dispose forced an immediate disposal rather than waiting for the garbage collector to clean up (if you were just to use object=nothing), but still there appears to be a finite time before these objects are released.
My question is, is there an alternative way of checking (programatically in vb) for what is holding open an sqlce database (or in fact any other file for that matter) then killing these processes?
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Apr 6, 2009
I'm about to pull my hair out on this guys I do not know where I'm going wrong but basically I receive a web request response formatted in XML and I need to insert that data into an SQLCE database. I have tried using LINQ queries but there are no matching ID fields to Join or Group.
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Aug 20, 2010
I want to access the Windows mobile SQLCE database from the desktop application when device is connected to my PC.
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Sep 15, 2009
In the below code, it is supposed to load the data from the dataset, into the table, so that I can view and navigate the records.My problem is, that when the statement runs, it errors with:
System.Data.ConstraintException was unhandled "Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints."
Here's the code:
[code]...
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Sep 21, 2011
I've been getting this error when I try and use my model container:
No connection string named 'PFModelContainer' could be found in the application config file.
I have my edmx file in a separate project. I checked the app.config file and my model was there, and I also put it in my main project app.config file. Still doesn't work. Here's the connection string:
<connectionStrings>
<add name="PFModelContainer"
connectionString="metadata=res://*/PFModel.csdl|res:
[Code].....
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Sep 15, 2009
I've been messing around trying to get an INSERT statement to work, and because of this, it has created lots of records in my database that I dont need or want.
The problem is, when I open up the table by right clicking on it in the database explorer and selecting "Show table data", I click on the record I want to delete and the following error comes up in a message box[code]...
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Mar 23, 2010
I have an issue that I can't seem to tackle. Going on 3 weeks. I have a VB.NET app with an sqlce 3.5 database. I have created several tables in this database. I have attached them to my form using DataSet then BindingSets and so forth. Done this many time before. VS automatically created a TableAdapterManager for me.I was having an issue getting the Refresh of the primary key value of a newly inserted row. Ok, find out that sqlce does not do big transaction, or multiples rows at a time, found Beth Massi's blog on how to work around this:Ok, got it somewhat to work, but I had to take one of the tables out of the tableadaptermanager so I can update it by itself so insted of doing this:
frmMain.Validate()
frmMain.bsRunInformation.EndEdit()
frmMain.TableAdapterManager1.UpdateAll(frmMain.DS1)
[code].....
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Oct 23, 2009
Getting some errors with a loop. It's a log-in app that has username, passwords & account type stored in a SqlCe database. I would like it to sync with a larger database for updates that has not been made so i left it out but I have started to make a loop that would connect it to the larger DB and if connection failed would try a set number of times before stopping the program. I'm coding this project with Visual Studio 08 pro
Dim conndb As New SqlCeConnection("Data Source = |DataDirectory|\Mydb.sdf")
Dim x, y, z As Double
x = 1
y = x + 1
z = 5
[CODE]...
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Aug 19, 2010
Here is the code:
Function getData(ByVal id As String)
Dim reader As SqlClient.SqlDataReader
Dim statement As String
[code].....
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Mar 3, 2010
I'm designing a PC-based app that has a little local database. I'm using VB.NET with SQL Server Compact Edition. The user will only ever have access to one database file, because it's all about storing a user specific data. However I'm thinking of the situation where there could be multiple users that access the PC, each with their own Windows account. So ideally I'd need separate database files for each User.
I'm not sure how to implement this. I was hoping to deploy the 'empty' database as a ClickOnce deployment, but I can't see how I can have a database per user doing this. Also I'm not sure where to store the database files anyway. perhaps in MyDocuments for each user? Or perhaps I need to stick to just one database, but add a 'User' column into every table, so it can hold data for every user. I didn't want to do this though - because I wanted to keep the nice separation between the data offered by physically separate files.
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Feb 29, 2012
When Creating a query using the sear Criteria Builder . I keep getting the error : "The schema returned by the new query differs from the base query" what does that mean and how do i avoid this problem in future
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Nov 20, 2010
I have a SQL CE database (SDF) that I tried to edit with Database.net v3, but it is now not opening in Visual Basic Express 2010.[code]I've installed SQL Server Compact 4.0 ENU CTP1, but it is still not working.Is there any way to revert the version back? Or anything else I can do to fix this error?
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Aug 22, 2011
Wrote a custom stand alone engineering program to do some very basic repetative design calculations. This program also does pricing by taking each design element and asigning pricing to it based on the parameters given. All the individual elements are added together to get a unit cost. (All this works well without any problems or issues)
[Code]...
My eventual goal once I can prove that my changes work is to control the pricing by using the YEAR so that the program increases the cost by a set multiplier based on the actual YEAR the system is set for. ie: 2011
10% increase, 2012 5% increase, 2013 5% increase, etc.
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Aug 15, 2009
I have fields with " monday, tuesday,wed, thu, fri, sat and sun". I am trying to add the hours of each day on a separte field " week total hours "..Everything works fine but say if i make any changes again to "monday hours" it does not take effect on " tot hours "
eg.. mon 2hrs, tues 1 hrs, wed 1 hrs, thur 0, fri o, sat 0 and sun 0, then the total hours is 2+1+1 = 4 and it displays well ....but if i change ( mon= 1 ) then it should be 1+1+1 = 3 but it remains 4
[Code]...
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Jun 30, 2010
I want to add a wait process form instead of the wait cursor effect while the method block execute codes.[code]...
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Feb 23, 2010
I have to create a slot machine. i have 3 picture boxes and i need to know how the program can randomly select from the 7 pictures i have but still create a short delay where there is the effect of spinning. my teacher said that it would be easy to assign each picture a number but i didnt get what he means.
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Jun 12, 2009
When I use a control button on a switchboard to open my form which has subforms, the subforms open in datasheet view. When I open the form directly the subforms open in single form/continuous form view - which is what I want. Is there something I can do to the event procedure to make the subforms open properly?
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Nov 1, 2006
I was recently asked a multiple choice question: According to the sample code, which one of the following statements has NO effect and should be moved to another line to accomplish its purpose?
dim tb as New TextBox
g_row as Integer = 0
tb.Text = CType(g_row, String)
[code]....
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Dec 22, 2009
I am not an advanced VB programmer as I create applications for fun at home, so am hoping someone can help me with this. I would like to add a mouse over glow type effect to a control (doing this on a picturebox at the moment). I did this very simplistically by creating a user control and having a picturebox within a picturebox, one of which is not visible. On the mouse over, I just make it visible and it does look cool as it has rounded edges and all that. But I assume this is not a good technique and really limits you. I would like to do it so I can define the color, glow size, etc... kind of like the glow effect in Flex.
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May 5, 2010
I have a few routines that they loop forever if they are not interrupted.Selecting any of them sets the "seq" to True.This would leave them in the tight loop to do whatever they do.Its different patterns of LED flashing.I use another button to stop and that makes the "seq" go False.Interesting that I need to click the stop twice to take effect.I can click the stop now and the 2nd click could be after a long time but there is always the 2nd click on Stop that takes effect.
[code]....
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