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I have a problem making a new Data Source from VS2005. I have made a new
Widows Mobile 5.0 Pocket PC SDK Project. I’m going through Data
-> Add New Data Source… -> Database -> New Connection… -> Microsoft SQL Server Mobile Edition
(or through Server Explorer). I’m creating new database (or browsing existing).
The connection test ends with success and when I press OK I get such message box:
“Unable to find the requested .Net Framework Data Provider. It may not by
installed”
I have installed VS2005 with Widows Mobile 5.0 Pocket Pc SDK – no difference!
What’s wrong?
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I am producing a mobile application using embedded VC++ 4 which contains multiple dialogs.
It was intended to step through the dialogs using a next button which would open the next dialog and close the current dialog. Also a previous button which does a similar thing.
The code used to open the next and close current is
Class2 dlgClass2(this);
nRetCode = dlgClass2.DoModal();
CDialog::OnCancel();
And for the previous button on the dlgClass2 button
Class1 dlgClass1(this);
nRetCode = dlgClass1.DoModal();
CDialog::OnCancel();
However by continually selecting next on the dlgClass1 and previous on dlgClass2 the application crashes after the 11th or 12th attempt.
Does anyone know please why this is happening? Are you able to close the current dialog or does it need to remain open?
SDT
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DoModal creates a nested message loop. Eventually you get a stack overflow.
To avoid this, consider using the dialog's Create function. That creates a modeless dialog - messages are then pumped by the main thread's Run function (if all dialogs are modal) or by the most recent modal dialog on the thread.
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Hello,
I've digged for a while in the CF2.0 msnd documentation, and I couldn't find any way to send mails like with the .NET Framework. I didn't find any class to send mail. Is there any buil't way to send mails with VB.NET using CF2.0 and vstudio 2005 standard?
Thanks,
Jacobo.
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I am developing an application on windows mobile 2003 and I need to call another application on the click of a button. Can anybody help me in that. I will be obliged.
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Mobile Web Application is very new for me. And i tried to make a simple project about it. So i used VS 2003 and created a Mobile Web Application. I used NWB 4.0 to display the page. But the page couldn't be displayed ( the page could be displayed in IE ) . I only saw the earth icon was always moving and nothing more.
So why's that happened? And how could i solve this problem?
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Hi folks,
I have to write a background application for a mobile terminal (equipped with
integrated scaner engine, keyboard, serial port and so on...) with a CE4.2 OS.
The app shall read data from the serial port, do a little magic with this data
(changing some letters against others, deleting carrige returns) and insert the
result into a textbox of the current foreground application.
Serial communication isn't the problem, but inserting the data into the textbox
is a real head-scratcher to me. 
I wrote a similar application for a normal PC. Then I used the SendKeys class
to to the job, but unfortunately this class isn't available in the Compact
Framework. 
I thought about using P/Invoke, but I don't have a clue which function of which
dll I should use... 
Does anyone have an idea how to solve this problem?
Thanks in advance!
Reinhard
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I started reading about synchronizing SQLServer CE. It involves IIS, shadow folders and SQL Server 2000.
What if all our data is on Oracle? Without going too deep, is there a way for IIS to use that instead?
I have no IIS experience. If there is a way to avoid that I'd prefer it.
He was a snowflake, like other "unique" snowflakes, falling down, getting stepped on, and pushed aside to disappear.
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Hi!
I try to develop my first PDA application, and it works fine, until I not use database functionality.
I try to manage an access database via ODBC, but System.Data.ODBC is missing in my mobile solution, what do I need to make this work?
Need solution for Win Mobile 5, and 2003 too.
Or is there better format, or way for databases on PDA?
I have Visual Studio 2005 Professional, and SQLExpress 2005.
If somebody have links for PDA sourcecodes please send to me.
Thanks for help!
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Please read this from MSDN.
In .NET Compact Framework applications, the following options are supported but not working and are currently reserved for future use: AcceptConnection, ReceiveLowWater, ReceiveTimeout, SendLowWater, SendTimeout, and Type.
I am trying to set ReceiveTimeout using SetSocketOption, but throwing exception.
Pls advise the alternate way to set socket receive timeout.
Thanks
Aruna
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Hello All,
I'm using cf 2.0 on the emulated ppc 2003 device that is bundled with vs2005. For some reason, when I attempt to connect to my database it throws a sqlexception error with no error message. My code is as follows:
SqlCeEngine engine = new SqlCeEngine("Data Source='\\Program Files\\UCPS\\UPCS.sdf';");
if (!(File.Exists("\\Program Files\\UCPS\\UPCS.sdf")))
engine.CreateDatabase();
SqlCeConnection connection = new SqlCeConnection(engine.LocalConnectionString);
connection.Open();
I can connect to the database on the device just fine. The database has no password. In this code sample, it does indeed find the UPCS.sdf file in the second line and does not try and create a new one. But when I try to open the connection, it errors out with no message. The only data I have is
HResult = -2146233087
StackTrace = StackTrace "at System.Data.SqlServerCe.SqlCeConnection.ProcessResults()\r\nat System.Data.SqlServerCe.SqlCeConnection.Open()\r\nat System.Data.SqlServerCe.SqlCeConnection.Open()\r\nat UPCS.Data.StatusTable.RetrieveStatusRecords()\r\nat UCPS.Main.Main_Load()\r\nat System.Windows.Forms.Form.OnLoad()\r\nat System.Windows.Forms.Form._SetVisibleNotify()\r\nat System.Windows.Forms.Control.set_Visible()\r\nat System.Windows.Forms.Application.Run()\r\nat UCPS.Program.Main()\r\n" string
I would really appreciate any suggestions,
Thanks,
Ryan
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I can connect to an empty database. I created my db through visual studio 2005. Are there any issues creating a db through the ide that would cause it to not work properly?
Thanks,
Ryan
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If File.Exists("\My Documents\pam.sdf") Then<br />
File.Delete("\My Documents\pam.sdf")<br />
End If<br />
<br />
Dim sqlEngine As SqlCeEngine<br />
sqlEngine = New SqlCeEngine<br />
sqlEngine.LocalConnectionString = "Data Source=\My Documents\pam.sdf;password=;Encrypt Database=False"<br />
sqlEngine.CreateDatabase()<br />
<br />
Dim myConnection As New SqlCeConnection("Data Source=\My Documents\pam.sdf;password=")<br />
myConnection.Open()
He was a snowflake, like other "unique" snowflakes, falling down, getting stepped on, and pushed aside to disappear.
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Hello everybody
I am working on PocketPc WM5.0. Uisng Vs2005 C# for the developmen platform.
I want to make ,, my own control which should be transparent .
Normally control's background color is ,what we set to Back color property . But i want this to be transparent so that i can see through it.
How can i do that ...?
Please suggest
Regards
Manish
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using gdi you can draw with transparency
l_Icon is a bitmap
ImageAttributes imageAttr = new ImageAttributes();
// set the transparency of the image to be shown using the selected pixel
imageAttr.SetColorKey(l_Icon.GetPixel(0, 0), l_Icon.GetPixel(0, 0));
// draw the custom graphic
g.DrawImage(l_Icon, dstRect, 0, 0, l_Icon.Width, l_Icon.Height, GraphicsUnit.Pixel, imageAttr);
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Hi! I really hope somebody can help me.
I am doing a school project on vertical handoff. A Linux workstation and a Pocket Pc (windows mobile 2003) are communicating through WiFi and Bluetooth. The system should always choose the connection technology that is best under the current conditions, if for instance the bluetooth connenction is currently being used, and the connection is lost, the system should transparently switch to WiFi, instead and vice versa.
My goal is that the user or an application uses only one ip-connection, hence achieving trancparent handover between the two technologies.
Now let's say the Linux PC has the following adresses:
BT: 10.0.0.1
WiFi: 10.1.1.1
and the PPC has:
BT: 10.0.0.2
WiFi: 10.1.1.2
Then I what to create a virutal IP (VIP):
Linux PC: 10.2.2.1
PPC: 10.2.2.2
The VIP should then "forward" the communication to the active connection.
I can successfully create a virtual IP on the Linux PC, and then assign this to the currently active connection.
Can I anyhow do the same thing on the Pocket PC?
I would prefer to do this in C# but C++ is an option.
I hope you understand my problem, my english might be a bit rusty, but i will try to elaborate if needed. Thx in advance.
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Hi,
While working with compact framework i stuck at following queries,If anyone can help me to solve this ,plz answer me.
1. Can we create a copy of database (.sdf files) of PPC to our desktop machine and accesse those files without connecting to PPC ?
2.Is there any unique number associated with the PPC device so that we can Identify it when ever it connected to our desktop?
If yes then how to get that number or is there any other way we can achieve this requirement.
3.i m using dataset for filling the comboboxes on Page Load event but it is throwing an exception .If i fill only one combo then the code works fine but if i m filling 2 combos at the same time ,it gives problem.What will be the problem ?
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Ciao,
is there any managed class or unmanaged API I can call to know the available memory and disk space on a WinCE device (CF 1.0 )
Thanks in Advance
Ciao
Marco
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Howdy,
I'm not sure about managed (.net) functions but the following unmanaged (C/C++) functions may be of interest to you:
Memory:
GlobalMemoryStatus
Disk:
GetDiskFreeSpaceEx
These maybe useful as well:
GetStoreInfo
CeGetVolumeInfo (CE 5.0 only)
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Hello!
I have problems with the IssueVendorTransfer function. All parameters are
correct, the mistakes messages are:
DBGCHK failed in cpipe.cpp line 891
DBGCHK failed in transfer.hpp
What I make wrong!
I use Platform Builder 5.0 with CEPC
EHCI Host Controller
Here my call of the function:
ControlHeader.bmRequestType = USB_REQUEST_DEVICE_TO_HOST | USB_REQUEST_CLASS
| USB_REQUEST_FOR_INTERFACE;
ControlHeader.bRequest = 254;
ControlHeader.wValue = 0;
ControlHeader.wIndex = 0;
ControlHeader.wLength = 0;
dwErr = IssueVendorTransfer( pUMC->UsbFuncs,
pUMC->hUsbDevice,
DefaultTransferComplete,
pUMC->hEP0Event,
(USB_IN_TRANSFER|USB_NO_WAIT|USB_SHORT_TRANSFER_OK),
&ControlHeader,
pBuffer, 0,
&dwBytesTransferred,
pUMC->UsbTimeouts.DeviceIdTimeout,
&dwUsbErr );
Thank you
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Hi,
i m working on application related with PDA ,I want to know "How to access the .sdf file's created in Pocket PC from compact framework emulator Without using PDA ".Is there any way so that we can create the copy of database(.sdf files) present in PDA on our desktop?
Regards,
Asifkhan.
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Cant you just copy the file to your desktop??
But if you really want to work with the DB in your PPC, OK.
Im using VS.NET 2005.
1-Open VS
2-In your server explorer click on add new connection
3-For the data provider choose MSSQL Server Mobile Edition
4-On the datasource choose: "Active sync connected device"
5-Browse for the database or create a new one, if its password protected, write it in the password field
6-Test the connection
And you are done
But again...If I were you, i would create the DB on my desktop (same steps as above but instead of choosing "Active sync connected device" youd choose "My computer") and when you deploy the app to the PPC, you can automatically deploy the DB.sdf as well
Hope this helps you
By the way, this is not the best place to find answers to your questions about mobile devices, it looks like no one here pays atention to this part of codeproject.com Once i posted a problem i was having, and i never got an answer, actualy a had one (One of my own) since i found the answer somewhere else and decided to post it here
Alexei Rodriguez
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hi,
Alexei Rodriguez
Thanks for your help,but the problem is that i am working on VS.NET 2003,so these options will not be there.
As you told that this is not right place to get answers about PPC development then plz send me the links or forum link so that i can get the solutions.
Once Again Thanks for the help.........
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