Problem In Reading The Line Public Mycon As New Sqlceconnection
Feb 19, 2008
Hi Frndz
I am facing a problem with vb.net application which i created to connect with and sqlservermobile edition file (.sdf).
while the connection is declared, its producing the error that "Exception from Hresult : 0x4007000B." and some inner exception error lines.
i imported system.data.sqlceserver and added the references too.
but It is working in my one of the system. i tried the same in some other system,its not working. you frndz have any about this. I think the system is lacking some dll files. any body having an idea about this. pls help me out.
Nahas
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Jun 14, 2007
Hi,
I have a flatfile source. I want to extract a specific row... let say row 2. how do i retrieve that row from the list of rows in my flat file?
thanks,
Cherriesh
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Nov 4, 2005
Which format is assumed for connection string for SqlCeConnection?
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Feb 16, 2006
What is exactly the recommended way of using a SqlCeConnection object in your application?
In all the examples I see (IBuySpyDelivery for example) it opens the connection object in the constructor and leaves it open most of the time until the class gets disposed.
Is that the way to do it? Or should you open and close the connection for each database action (insert/select/delete) you're doing on the local SQL Mobile database?
I'm a bit confused, but maybe I'm messing up the way of working on remote database servers with how it should be done on a local SQL Mobile db.
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Aug 9, 2006
Help!
I am trying to implement a web service that creates and populates a SQL Mobile database file, then returns the created database to a mobile device as a byte array. The database size could be in excess of 500,000 rows, which is why I want to do as much of this preprocessing on the server before it gets to the mobile device. I can't use replication since I have to do some shaping of the data before I can use it on the mobile device.
Unfortunately, the web service is throwing the following exception when I try to instantiate a SqlCeConnection object:
"System.NotSupportedException: SQL Server Everywhere Edition is not intended for ASP.NET development."
Are there any suggestions as to how I can get around this potential limitation? If I refactor out the code that actually performs the SqlCe operations to a separate assembly, but still call that assembly from within the ASP.NET process, will I get the same error?
I know that you can work with Sql Mobile databases from the deskop, and I suppose I could invoke a console application to create the database, but that seems like such a hack.
Thanks for any advice,
Matthew
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Feb 27, 2007
Hi, there;
I have a couple of issue that really frustrates me. I asked a similar question before but I haven't resolved it yet.
My application was developed with VS2003, c#,CF1.0,Sp1.
I found that after my application runs for a couple of hours, my SqlCeDataAdapter.Fill() method throw exception "Error Code: 8007000E Message : Not enough storage is available to complete this operation.". I found a couple of threads on the website said that I have to dispose adapter object (including its command objects.) Yes, I did!!!. And I also dispose my SqlCeConnection before it is out of range and recreate it when I need it. See:http://www.tutorials-se.com/sqlserverce/Keeping-SqlCeConnection/
I also introduced hotfix from http://support.microsoft.com/Default.aspx?kbid=827837.
It looks like I tried everything, but I still has this exception.
At the same time, From thread "http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=426640&SiteID=1", Mr. Ilya said "native DLL (e.g. bar code scanner API) " could cause AV (access violation) issue. Yes, my application is running on Symbol 9062B device which use barcode scanner API, sometimes application will have "0xc0000005" exception when it exists (not when it is running)
A serious problem is that the laser randomly crash in the middle of the scanning without any exception. I am quite sure it is not code logic issue. This happens since I introduced two SqlCeConnections which point to two different .sdf files (run at background threads).
My impression is that the memory or stack are corrupted for some reason.
Hopefully I make myself clear.
So my question is:
1. Will Sp3 help this? (Of course I will do some test)
2. How can I know memory or stack are corrupted/How to trace.
Again, thanks Mr.Ilya, you do a great job here, you are really really helpful!
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Jan 30, 2008
I've got an application uses a WPF GUI, is built in VS2008 final, targets .Net Framework 3.5, and uses a Sql Ce 3.5 database for local storage. After a specific WPF window is rebound the application hangs. Hitting pause on the debugger reveals the offending method is a call to SqlCeConnection.Dispose(). Via Reflector I can see this method calls SqlCeConnection+ObjectLifeTimeTracker.Close() which in turn calls GC.WaitForPendingFinalizers(). Within WPF there are some objects (specifically TextBox) which need to have their resources freed on the main application thread. The finalizer thread is waiting on the main application thread, which is in turn waiting on the finalizer thread, resulting in a deadlock.
You can see some additional discussion of the topic including our temporary resolution in this thread.
My question is why is there a call to GC.WaitForPendingFinalizers() buried within the SqlCeConnection.Dispose() call tree?
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Jul 11, 2006
Hi,
I'm having the problem that my application hangs on SqlCeConnection.Dispose() when I'm closing the app.
public class DatabaseManager : IDisposable
{
private DbConnection connection = null;
// Singleton
private DatabaseManager()
{
this.CreateConnection();
}
~DatabaseManager()
{
this.Dispose();
}
public void Dispose()
{
if (this.connection != null)
{
this.connection.Dispose();
}
}
// ...
}
This only happens when I'm calling Application.Exit(); and Dispose is called through the destructor of the DatabaseManager class. When I'm disposing the connection during normal work the call works as intended. BTW I'm using SQL Server Mobile 3.0.5214.0 on a PPC 2003 AKU2 (Symbol PPT8846 industrial device).
Thanks for support,
Klaus
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Dec 4, 2007
I'm having a problem where I am getting a "Permission denied" exception when I call Open on a SqlCeConnection object using SqlCE version 3.5. It does this when mode is set to Read Only in the connection string. Furthermore it does this on XP, but not Vista. Here is the connection string I'm building:
string connectionString = "Data Source='" + fileName + "';password=" + DBPassword + ";mode='Read Only';Temp File Directory='" + Path.GetTempPath() + "'";
A prompt response with a resolution to this would be greatly appreciated.
Ron
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Nov 13, 2007
Hi
I am developing a program on Visual Basic 2005 to a pocket pc, I want to make the SQLceconnection but It says that the file doesn´t exists, I use this code:
Dim conn As New SqlCeConnection()
Dim Recordset As SqlCeDataAdapter
Dim SQL As String
Dim ds As New DataSet
conn.ConnectionString = _
"Data Source = '.BDDclimatologicos.sdf';"
conn.Open()
SQL = "select [Provincia] from ZonasClimaticas"
Recordset = New SqlCeDataAdapter(SQL, conn)
Recordset.Fill(ds, "ZonasClimaticas")
lstboxProvincias.DataSource = ds.Tables("ZonasClimaticas").DefaultView
I have Dcilmatologicos.sdf on a folder named BD next to the folder of the executable, I don´t know what happends.
My database has one table "ZonasClimaticas" and a column named "Provincia" on that, my other question is:
Is this the right code to show that column on a listbox?
Thank you very much!
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Jan 24, 2008
I know that with traditional SQL systems, it is important to only open connections to a sql server when they are needed. However, since there is no "server" in mobile apps, is it bad practice to leave one open throughout the duration of an application?
The application is going to be constantly reading and writing to the data tables and it seems like it might be a good idea to leave it open.
Thanks!
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Apr 4, 2007
Hi all,
I am trying to access my SQL Server database through SqlCeConnection:
cecon = new SqlCeConnection("Data Source=D:\D_Drive\csharppract\nddbpda\nddbpda\nddbpdadatabase.sdf");
cecon.Open();
I am getting the following error:
System.Data.SqlServerCe.SqlCeException was unhandled
Message="The path is not valid. Check the directory for the database. [ Path = D:\D_Drive\csharppract\nddbpda\nddbpda\nddbpdadatabase.sdf ]"
HResult=-2147467259
NativeError=25009
Source="SQL Server 2005 Mobile Edition ADO.NET Data Provider"
StackTrace:
at System.Data.SqlServerCe.SqlCeConnection.ProcessResults()
at System.Data.SqlServerCe.SqlCeConnection.Open()
at System.Data.SqlServerCe.SqlCeConnection.Open()
at nddbpda.frmCeMain.frmCeMain_Load()
at System.Windows.Forms.Form.OnLoad()
at System.Windows.Forms.Form._SetVisibleNotify()
at System.Windows.Forms.Control.set_Visible()
at System.Windows.Forms.Application.Run()
at nddbpda.Program.Main()
When I tried to get the path from which the database file is being accepted, I got a different path:
string path;
path = System.IO.Path.GetDirectoryName(
System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);
MessageBox.Show(path);
This code gives me this path:
Program Filesddbpda
Then I changed the path in my connection string to this:
cecon = new SqlCeConnection("Data Source=\Program Files\nddbpda\nddbpdadatabase.sdf");
cecon.Open();
When I ran my application it worked (virtually), but the database is not getting updated (for obvious reasons).
What should I do now to correct this?
Thanks in advance.
Saswata.
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Apr 4, 2007
Hi all,
I am trying to access my SQL Server database through SqlCeConnection:
cecon = new SqlCeConnection("Data Source=D:\D_Drive\csharppract\nddbpda\nddbpda\nddbpdadatabase.sdf");
cecon.Open();
I am getting the following error:
System.Data.SqlServerCe.SqlCeException was unhandled
Message="The path is not valid. Check the directory for the database. [ Path = D:\D_Drive\csharppract\nddbpda\nddbpda\nddbpdadatabase.sdf ]"
HResult=-2147467259
NativeError=25009
Source="SQL Server 2005 Mobile Edition ADO.NET Data Provider"
StackTrace:
at System.Data.SqlServerCe.SqlCeConnection.ProcessResults()
at System.Data.SqlServerCe.SqlCeConnection.Open()
at System.Data.SqlServerCe.SqlCeConnection.Open()
at nddbpda.frmCeMain.frmCeMain_Load()
at System.Windows.Forms.Form.OnLoad()
at System.Windows.Forms.Form._SetVisibleNotify()
at System.Windows.Forms.Control.set_Visible()
at System.Windows.Forms.Application.Run()
at nddbpda.Program.Main()
When I tried to get the path from which the database file is being accepted, I got a different path:
string path;
path = System.IO.Path.GetDirectoryName(
System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);
MessageBox.Show(path);
This code gives me this path:
Program Filesddbpda
Then I changed the path in my connection string to this:
cecon = new SqlCeConnection("Data Source=\Program Files\nddbpda\nddbpdadatabase.sdf");
cecon.Open();
When I ran my application it worked (virtually), but the database is not getting updated (for obvious reasons).
What should I do now to correct this?
Thanks in advance.
Saswata.
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Apr 15, 2008
Good day,
I am writing an application using VB.Net 2005 for the Windows CE 5.0 device and it is connecting to a SQL Server 2005 Mobile Edition Database.
The trouble I'm having is establishing a connection to a SQL Server Mobile database on the device.
Here is the code I am using:
Code Snippet
Public gConnectionString As String = "Data Source=Program FilesMobAppMobDB.sdf;Persist Security Info=False;"
Code Snippet
Imports System.Data.SqlServerCe
Public Class DBManager
Public Shared gSQLCEConnection As SqlCeConnection
Public Shared Function OpenDB() As Boolean
If gSQLCEConnection IsNot Nothing Then
Throw New InvalidOperationException("Connection already open.")
End If
gSQLCEConnection = New SqlCeConnection(gConnectionString)
Try
gSQLCEConnection.Open() 'Error occurs here
Return True
Catch ex As SqlCeException
MsgBox(ex.Message & vbCrLf & ex.HResult & vbCrLf & ex.NativeError & vbCrLf & ex.Source)
Return False
End Try
End Function
In the immediate window I recieve the following messages:
A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll
A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll
A first chance exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll
A first chance exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll
A first chance exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll
A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll
A first chance exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.dll
A first chance exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll
A first chance exception of type 'System.Data.SqlServerCe.SqlCeException' occurred in System.Data.SqlServerCe.dll
I believe that the first few lines are caused by the icons/pictures that I have included with my app, but the SqlCeException line occurs when the connection to the .SDF file is trying to be established.
Here is the exception output:
Message: "" (Blank)
HResult: -2147024882
NativeError: 0
Source: SQL Server 2005 Mobile Edition ADO.NET Data Provider
Programs under Remove Programs on the PDA are:
Microsoft .NET CF 2.0 ENU-String R...
Microsoft .NET Compact Framework...
Microsoft SQL Client
Microsoft SQL Mobile 2005
Microsoft SQL Mobile 2005 [EN]
Microsoft SQL Server 2005 Compact...
Microsoft SQL Server 2005 Compact...
Microsoft SQL Server 2005 Compact...
Microsoft SQLCE 2.0
Microsoft SQLCE 2.0 Dev
Any ideas on what could be stopping this connection from being established? It was working before but all of a sudden just stopped. I have warm booted, cold booted, and rebuilt with no luck and also checked that SQL Query Analyzer is not running on the PDA and that the connection string is valid.
The call to OpenDB occurs in the form_load of the startup object.
Thanks in advance,
Leon
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Feb 27, 2007
Hi,
for some AP issue, the file I upload must be without the line feed/carriage return in the last line.
for example:
original fixed-length file (exported from SSIS)
line NO DATA
1 AA123456 50 60
2 BB123456 30 40
3 CC123456 80 90
4 <-- with line feed/carriage return in the last line
The file format that AP request. The file only has 3 records, so it should end in the third line.
line NO DATA
1 AA123456 50 60
2 BB123456 30 40
3 CC123456 80 90
Should I use script component to do it ? I am new for VB . Anyone would help me ?
Thank you all.
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May 4, 2012
I need the Trend line for the following data in Line chart they are the following data. The following are the graph are my output and i need the trend line for these Key_gap value.
This is the link [URL] ....
I need the same trend line for the Bar-Chart in SSRS 2005.
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Aug 31, 2007
I hope I'm posting this in the correct forum (forgive me if I'm not) since I'm not sure if this is an issue with inserting an item into a db or the processing of what I get out of it. I wrote a basic commenting system in which someone my post a comment about something written on the site. I wanted to keep it very simple, but I at least want the ability for a user to have newlines in their comment without having to hardcode a <br /> or something like that. Is there a way for me to detect a newline if someone, for example, is going to their next paragraph?
Let me know if you need a better explanation.
Thanks in advance!
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Nov 8, 2006
G'day everyoneThat's a space between the ticks.It's all part of a longer script but seeing as the failure occurs online 1if exists (select * from dbo.sysobjects where id =object_id(N'[dbo].[config]') and OBJECTPROPERTY(id, N'IsUserTable') =1)drop table [dbo].[config]GOThat's three lines only. Does it matter that they're in Unicode?Any ideas?Kind regards,Bruce M. AxtensSoftware EngineerStrapper Technologies
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Feb 7, 2007
We have a line graph which plots the actual data points (x,y), everything is working fine with this graph. Now we need to add a trend line to this existing graph after going thro. the articles we came to know that there is no direct option in SSRS to draw a trend line. So we need to calculate the trend values ourselves which we need to plot as atrend line. This trend line is similar to the trend line which comes in Excel chart, do anyone know how to calculate the trend values from the actual data points. We got through several formulas, but were not clear, have anyone tried out exactly the same, if so please help us out by providing an example to calculate the trend values.
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Oct 26, 2007
I have a line graph which shows positive and negative values. Is it possible to have the line one color when its negative and another when its positive?
kam
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Sep 29, 2001
HEllo can anybody tell me how to monitor a long store procedure
line by line. Also how to put progress bar in it to tell user how
much is done.
Sabih.
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Dec 12, 2007
Hi,
When creating a line chart, I would like to be able to show Markers for the data points, but no line between these points (as you can do in excel).
I have set the line setting to none (for the lines of interest), however the lines still show.
Is this a bug, or am i missing something obvious settings-wise?
Cheers,
M
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Dec 28, 2007
HiIt's my stored procedure 1 CREATE PROCEDURE singleSearch2
2 @SQ nvarchar(30),
3 @pType nvarchar(11),
4 @pCol nvarchar(11)
5 AS
6 BEGIN
7 DECLARE @SQL NVarChar(1000)
8 SELECT @SQL='SELECT *,'
9 SELECT @SQL=@SQL+' CASE RTRIM(LTRIM(op))'
10 SELECT @SQL=@SQL+' WHEN '+CHAR(39)+'e'+CHAR(39)+' THEN '+CHAR(39)+'اجاره'+ CHAR(39)
11 SELECT @SQL=@SQL+' WHEN '+CHAR(39)+'r'+CHAR(39)+' THEN '+CHAR(39)+'رهن'+CHAR(39)
12 SELECT @SQL=@SQL+' WHEN '+CHAR(39)+'f'+ CHAR(39)+' THEN '+ CHAR(39) +' Ù?روش '+CHAR(39)
13 SELECT @SQL=@SQL+' WHEN '+CHAR(39)+'e r'+CHAR(39)+' THEN '+CHAR(39)+ 'اجاره - رهن '+CHAR(39)
14 SELECT @SQL=@SQL+' WHEN '+CHAR(39)+'e f'+CHAR(39)+' THEN '+CHAR(39)+'اجاره - Ù?روش '+CHAR(39)
15 SELECT @SQL=@SQL+' WHEN '+CHAR(39)+'r f'+CHAR(39)+' THEN '+CHAR(39)+' رهن - Ù?روش '+CHAR(39)
16 SELECT @SQL=@SQL+' WHEN '+CHAR(39)+'e r f'+CHAR(39)+' THEN '+CHAR(39)+'اجاره - رهن - Ù?روش'+CHAR(39)
17 SELECT @SQL=@SQL+' ELSE op END AS xop, CASE LTRIM(RTRIM(type)) '
18 SELECT @SQL=@SQL+' WHEN '+CHAR(39)+'z -'+CHAR(39)+' THEN '+CHAR(39)+'زمین'+CHAR(39)
19 SELECT @SQL=@SQL+' WHEN '+CHAR(39)+'m -'+CHAR(39)+' THEN '+CHAR(39)+'مسکونی'+CHAR(39)
20 SELECT @SQL=@SQL+' WHEN '+CHAR(39)+'t -'+CHAR(39)+' THEN '+CHAR(39)+'تجاری'+CHAR(39)
21 SELECT @SQL=@SQL+' ELSE [type] END AS [xtype] FROM [data] '
22 SELECT @SQL=@SQL+' WHERE ([type] LIKE %'+CHAR(39)+@pType+CHAR(39)+'%) AND ('+@pCol+' LIKE %'+CHAR(39)+@SQ+CHAR(39)+'%)'
23 Exec (@SQL)
24 END
25 GO
and i face this error: Line 1: Incorrect syntax near '-'.
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Jan 16, 2008
Hi
Anyone have any idea how to make a line style dashed or dotted in a line chart please?
If I change the series style to dashed or dotted it still appears as a solid line, yet the legend displays a dashed or dotted line....
Thanks
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Apr 18, 2008
My question is about coding style for specifying constraints when creating tables.
Two styles for defining constraints:
In-line:
CREATE TABLE Fruit
(
FruitID INT IDENTITY(1,1)
CONSTRAINT PK_fruit PRIMARY KEY CLUSTERED,
FruitName NVARCHAR(50),
FruitTypeID INT
CONSTRAINT FK_fruit_fruit_types FOREIGN KEY
REFERENCES FruitTypes (FruitTypeID) ON UPDATE CASCADE,
DateCreated DATETIME DEFAULT GETDATE()
)
Out-of-line:
CREATE TABLE Fruit
(
FruitID INT,
FruitName NVARCHAR(50),
FruitTypeID INT,
DateCreated DATETIME
)
ALTER TABLE Fruit ALTER COLUMN FruitID INT NOT NULL
ALTER TABLE Fruit ADD
CONSTRAINT PK_fruit PRIMARY KEY CLUSTERED (FruitID),
CONSTRAINT FK_fruit_fruit_types FOREIGN KEY (FruitTypeID)
REFERENCES FruitTypes (FruitTypeID),
CONSTRAINT DF_fruit_date_created DEFAULT
GETDATE() FOR DateCreated
Which style do you prefer and why?
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May 13, 2002
I am new at this and we encountered a problem. Can names in the public role be deleted? We have some names that need to go - however the delete option does not high light?
I would appreciate your help..
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May 14, 2008
Hi Guys,
I am unable to deny DMV rights to public. I have already ran the SQL query successfully:
"DENY VIEW SERVER STATE TO public" and "DENY VIEW DATABASE STATE TO public"
However when I check my master DB, the public still have rights to all the dm_***** objects. Am I doing it wrong or is there any steps I missed out? Can anyone help please?
Thanks a million.
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Is there a way to make a report public, to outside your domain users? We have a web application the users are authenticated in that is not in .NET and not using NT authentication and we want to have a report linked from inside the application that will pass the parameters in the URL. This is not very sensitive data and the report is using SQL authentication. We also don't want then to log in a second time for the report.
Can this be done easily?
Thanks
Linda
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Feb 23, 2007
Hi,
I'm actually using global public variables in the custom code of my reports.
Is there a "chance" that , if the report is executed at the same time by two users, values calculated for an user will be crushed by other user's execution ?
Thanks in advance.
Grégory.
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Are there any restrictions, limitations or anything to prevent the use of SQL Express database being used with my ASP.NET 2.0 application on a public web host?
If so, what are they?
Thanks.
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Mar 16, 2004
While connecting to the DB through a public IP from my system i'm getting an SQL Server does not exist or access denied.But while using localhost its working fine.DB setting in the web.config file.The Code is
<!-- application specific settings -->
<appSettings>
<!-- <add key="connString" value="data source=10.1.1.228;initial catalog=ACE;password=XXXX;persist security info=True;user id=sa;packet size=4096" />-->
<add key="connString" value="packet size=4096;user id=sa;data source=EBIZ;persist security info=True;initial catalog=ACE;password=password" />
</appSettings>
What to do for this error.
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Apr 26, 2001
Can I grant rights to "public" role ( customize it). Our app uses it.
thanks,
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Apr 4, 2000
Is anyone using SQL server to navigate their public web site?
We are concerned about having a database hit every time the user chooses a different page from our navigation bar.
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