Re: system.data.datarowview being displayed in a combo box, pocketPC 5.0 device - Mobile Discussion Boards

Re: programming with HTTP connection through GPRS

a_jhakas11-Dec-06 18:52

11-Dec-06 18:52

Hi George,

I wrote WAP for an example . My motive is to tell u that for making a GPRS u have to make proper setting for that . Actually if u go in device setting->connection u will find that u have 4 option for a connection Like (Work,internet,wapnetwork and secure wap network.)
Now what u need to do is make one new gprs connection. For making that connection follow the steps

(1)Go in Setting->connection->gprs
(2)Click Add in menu
(3)Now chose any name for connection like myconn
(4)In connectto chose the connection that u r using in ur application(I mean work, internet or whatever u r using)for Example Work
(5)Give the other setting like APN and proxy (whtever required)
(6)Press Done and come out
(7)Now in main connection screen click on the menu
->advance
(8).Now if u have set the new connection for work then in combo box for work chose ur connection i.e myconn
(9)click on done

Now check ur application is working fine or not

Re: programming with HTTP connection through GPRS

George_George11-Dec-06 20:11

George_George

11-Dec-06 20:11

Thanks a_jhakas! I have understood your points. Do you have any tricks/approaches to tune/improve the performance of GPRS connection?

Any reference resources (samples/tutorials) will be appreciated.

regards,
George

Windows Mobile5.0

Sri harini7-Dec-06 17:07

Sri harini

7-Dec-06 17:07

Hi,
I am developing an application of windows mobile 5.0 using visual studio 2005 C#.Net.Testing with a emulator windows mobile 5.0 pocket pc Emulator..
I have one doubt, How to identify device Manufacturer(Manufacturer of client's device) and device Model(Model of client's device)using C# code?

Appreciate if you can help..

Thanks

Re: Windows Mobile5.0

Mike Dimmick7-Dec-06 23:32

Mike Dimmick

7-Dec-06 23:32

The only way I'm aware of is to use SystemParametersInfo with the SPI_GETOEMINFO flag. The code we're using:

private const int SPI_GETOEMINFO = 258;

[System.Runtime.InteropServices.DllImport("coredll")]
private static extern int SystemParametersInfo ( 
    int uiAction, 
    int uiParam, 
    System.Text.StringBuilder pvParam, 
    int fWinIni );

public static string GetOemInfo()
{
    System.Text.StringBuilder sb = new System.Text.StringBuilder( 256 );
 
    int result = SystemParametersInfo( SPI_GETOEMINFO, sb.Capacity, sb, 0 );
 
    int error = System.Runtime.InteropServices.Marshal.GetLastWin32Error();
 
    if ( result != 0 )
    {
        return sb.ToString();
    }
 
    return "";
}

Stability. What an interesting concept. -- Chris Maunder

Display the current location's latitude and longitude on the mobile

Ritika S6-Dec-06 23:10

Ritika S

6-Dec-06 23:10

Hi All,

I want to display the current location's latitude and longitude on the mobile screen using some web service or something.
(For India)
I ve explored www.geocoder.us but i want something similar for india

Can anyone please help me on this.

Thanks in Advance.

Regards,

Ritika

Ritika

system.data.datarowview being displayed in a combo box, pocketPC 5.0 device

steve_rm6-Dec-06 5:27

steve_rm

6-Dec-06 5:27

Hello,

I am populating at combo box from a dataset. But when I run the program I find I get system.data.datarowview being displayed in the combo box. What should be displayed is the values in the table. i.e. R4484, G5474.

I am using pocket PC 5.0. I have tried this code in a simple window form, and it works fine, but not in a pocket Pc application. That is why i posted here. Thought maybe there was something wrong with this type of control being used in pocket pc application.

<br />
ds = ws.loadSupportContracts(clientID)<br />
<br />
            If (ds.Tables(0).Rows.Count > 0) Then<br />
                Me.cboSupportContracts.DisplayMember = "supportContractID"<br />
                Me.cboSupportContracts.ValueMember = "supportContractID"<br />
                Me.cboSupportContracts.DataSource =ds.Tables("contracts").DefaultView<br />
            End If<br />

I did try and solve this problem by doing the follow. But had an error "value does not fall within the expected range"
[code]
ds = ws.loadSupportContracts(clientID)
Me.cboSupportContracts.DataSource = ds.Tables("contracts").DefaultView

Me.cboSupportContracts.DisplayMember = "supportContractID"
Me.cboSupportContracts.ValueMember = "supportContractID"

I have also tried using a binding source but still the combo box kept on displaying system.data.datarowview.

<br />
ds = ws.loadContacts(clientID)<br />
            bs.DataSource = ds<br />
            bs.DataMember = "contracts"<br />
<br />
            If (ds.Tables(0).Rows.Count > 0) Then<br />
                Me.cboContact.Items.Clear()<br />
                Me.cboSupportContracts.DisplayMember = "supportContractID"<br />
                Me.cboSupportContracts.ValueMember = "supportContractID"<br />
                Me.cboContact.DataSource = bs<br />
            End If<br />

If anyone has any ideas about this please let me know.

Many thanks in advance,

Steve

Re: system.data.datarowview being displayed in a combo box, pocketPC 5.0 device

AlexeiXX36-Dec-06 6:27

AlexeiXX3

6-Dec-06 6:27

This code works fine for me in VB.NET 2005

<br />
Dim da As New SqlDataAdapter("SELECT * FROM Categories", conn)<br />
Dim ds As New System.Data.DataSet<br />
da.Fill(ds)<br />
With Me.cboCountries<br />
   .DisplayMember = "CategoryName"<br />
   .ValueMember = "CategoryID"<br />
   .DataSource = ds.Tables(0)<br />
End With<br />

Alexei Rodriguez

Re: system.data.datarowview being displayed in a combo box, pocketPC 5.0 device

steve_rm13-Dec-06 6:45

steve_rm

13-Dec-06 6:45

Thanks for your reply Alexei,

But I have already tried that.

This works ok in a windows form, but in a pocket pc I can't get it to work. I have done like this many times in windows. This is my first pocket PC so not sure if there is something to do with it.

Many thanks for any suggestions,

Steve

Re: system.data.datarowview being displayed in a combo box, pocketPC 5.0 device

RB@Emphasys19-Aug-07 12:31

RB@Emphasys

19-Aug-07 12:31

Not sure if you still care, but i was getting the same issue, it ended up being the accessors. I changed my struct to be public as oppossed to internal, the bind started working just fine.

Ryan

System.Diagnostics.Process in CF 1.0

Dewald6-Dec-06 0:04

Dewald

6-Dec-06 0:04

OK, so the Process class in System.Diagnostics is not supported in CF 1.0. Is there any other way in CF 1.0 that I can invoke a process and kill a process as the following lines would achieve in CF 2.0?

System.Diagnostics.Process.Start("iexplore", "http://www.codeproject.org");
and

System.Diagnostics.Process procIe = System.Diagnostics.Process.GetProcessesByName("iexplore")[0];<br />
procIe.Kill();

Re: System.Diagnostics.Process in CF 1.0

arcticbrew7-Dec-06 12:06

arcticbrew

7-Dec-06 12:06

You can use the Windows CE CreateProcess API to load a program.

Re: System.Diagnostics.Process in CF 1.0

Dewald7-Dec-06 21:01

Dewald

7-Dec-06 21:01

Excellent stuff! Thanks man, it worked like a charm.

Do you mind if I ask one more questions please?

I assume that killing the process will be done through the TerminateProcess call but I can't seem to figure out how to kill the process that I have just created through CreateProcess. Any pointers here?

Thanks again. You saved me a lot of headaches.

Re: System.Diagnostics.Process in CF 1.0

arcticbrew8-Dec-06 8:52

arcticbrew

8-Dec-06 8:52

Public Structure PROCESS_INFORMATION
Public hProcess As IntPtr
Public hThread As IntPtr
Public dwProcessID As UInteger
Public dwThreadID As UInteger
End Structure

Use the hProcess returned from CreateProcess with TerminateProcess.

sbr extension

Like2Byte4-Dec-06 10:27

Like2Byte

4-Dec-06 10:27

Hi, I'm developing an application on PocketPC 2003 2nd edition.

Anyway, I'm looking in my output folder and I've located the executable, the object files and another bunch of object files with the extension of 'sbr'.

These sbr files have the same name, date-time stamp and number-of obj files. (10 obj files means 10 sbr files, etc...)

Does anyone know what these files are for?

Re: sbr extension

Mike Dimmick7-Dec-06 23:51

Mike Dimmick

7-Dec-06 23:51

SBR files contain Source BRowsing information. They contribute to a final .BSC file. This file is used when you select Tools/Source Browser in eVC, and also when you select some options from ClassView (e.g. Calls, Called By, References, Base Classes, Derived Classes).

The option to generate .sbr files is under Project/Settings, C/C++ tab, Listing Files category. Check 'Generate Browse Info' to generate the files, or uncheck to stop generating them. To turn generation of the .bsc file on or off, go to the Browse Info tab and check or uncheck 'Build Browse Info File'.

I have noticed the two settings get out of sync sometimes. I think it might be after you're prompted to build browse info when using any of the options I listed in the first paragraph, then the environment subsequently crashes before you save the workspace (which saves changes to the project file). This seems to leave the option to build .sbr files turned on, but loses the .bsc setting.

Stability. What an interesting concept. -- Chris Maunder

using C/C++ to read SIM card information

George_George4-Dec-06 3:54

George_George

4-Dec-06 3:54

Hello everyone,

I am wondering whether there are some samples/tutorials for a beginner to learn how to use C/C++ to read SIM card information on Windows Mobile platform?

thanks in advance,
George

Access phone call log

Stefano Alini4-Dec-06 3:36

Stefano Alini

4-Dec-06 3:36

Hi guys,

does anyone know how to export the phone call log in Windows CE 5.0 (maybe in a XML file)? I've tried with Microsoft.WindowsMobile.Status and Microsoft.WindowsMobile.Telephony without results. Thank you.

Stefano

Stefano

IPv6 programming on mobile device with vc2005

fansy_fs3-Dec-06 19:03

fansy_fs

3-Dec-06 19:03

i always failed with create a IPv6 socket on PPC2003/WM5 Cry | :((

. the function like that: socket(AF_INET6, SOCK_DGRAM, IPPROTO_IPV6));

it always return INVALID_SOCKET, and the error code is 10043.

but the IPv4 socket could be success everytimes.

how can i do? whether the IPv6 protocol was not deploy on my device? how to deploy it? Confused | :confused:

cannot establish a connection to the network PocketPC 5.0

steve_rm3-Dec-06 17:19

steve_rm

3-Dec-06 17:19

Hello,

VS 2005

I have created a Pocket that uses a web service to get data from a SQL server.
I have created the web refererence to the web service.

I am developing a pocket PC in WM 5.0

However, when I click a button on the PDA to get the data I get this error message "Cannot establish a connection to the network"

I am using active syn and have and using the emulator. This has been connected ok.

I have also configured the emulator from File | configure | Network and checked host only network. ( I don't think this makes much difference as the pocket 2003 i developed, it did not make much difference, as it worked if it was checked or not).

The code that causes the error is below:

<br />
Try<br />
            Dim ws As New DataIncidents.Service()<br />
            Dim ds As New DataSet<br />
<br />
            ds = ws.getIncidents()<br />
            'Dim cnnStr As String<br />
            'cnnStr = ws.getIncidents()<br />
<br />
            Me.grdIncidents.DataSource = ds.Tables(0).DefaultView<br />
<br />
        Catch ex As Exception<br />
            MessageBox.Show(ex.Message)<br />
        End Try<br />

If I add the Url line in, it works ok

<br />
Try<br />
            Dim ws As New CodeRed.Service()<br />
            ws.Url = "http://1.1.1.1/Incidents/Service.asmx" 'Works with this line<br />
            Dim ds As New DataSet<br />
<br />
            ds = ws.getIncidents()<br />
            'Dim cnnStr As String<br />
            'cnnStr = ws.getIncidents()<br />
<br />
            Me.grdIncidents.DataSource = ds.Tables(0).DefaultView<br />
<br />
        Catch ex As Exception<br />
            MessageBox.Show(ex.Message)<br />
        End Try<br />

Its not good to have this line hard coded in the program as if the location is changed then the problem will no longer function.

Can anyone tell me why I am getting this error.

Many thanks in advance,

Steve

Re: cannot establish a connection to the network PocketPC 5.0

AlexeiXX36-Dec-06 6:36

AlexeiXX3

6-Dec-06 6:36

Maybe when you added the WebReference to your project you used http://localhost/ws/Service.asmx in the url, you should use the ip address of the pc since localhost when executed in the PPC will be the PPC itself

I hope this can help you, but even if it works, since you dont want to hard code the url, this wont be the best way to do it

Maybe you should write the url in a text file and read the url from that file when you execute the project to establish the ws.url property dinamically

Alexei Rodriguez

Re: cannot establish a connection to the network PocketPC 5.0

steve_rm6-Dec-06 23:40

steve_rm

6-Dec-06 23:40

Thanks Alexei,

I did something stupid, I forgot to change the web reference properties to my computer IP address.

Steve

Re: cannot establish a connection to the network PocketPC 5.0

a_jhakas11-Dec-06 19:01

a_jhakas

11-Dec-06 19:01

Hi Steve,

I think u r getting this msg becoz u have not cradle ur device . In WM 5.0 u have to cradle ur device to make data connection from Desktop PC or laptop.

Ankur

Where the hell is STAThread (CF 2.0)? [modified]

rudiman2-Dec-06 12:52

rudiman

2-Dec-06 12:52

Hi.

I'm writing an application with Compact Framework 2.0 SP 1. I want to apply the [STAThread] attribute to the main method, but there seems to be no such attribute. I get offered the MTAThread attribute, but not STAThread. Of course, the compiler doesn't find either. It just seems to be missing in the referenced assemblies (System.dll). I didn't find anything about this problem on the web, so could anybody help me, please? I'm quite desperate. I already reinstalled the CF 2.0, no success. Nobody else seems to have had this problem, ever. Help!!!

Thanks!
rudiman

PS: Sorry for posting this question in the .NET discussion group, too. Now I think it fits better here.

-- modified at 18:58 Saturday 2nd December, 2006

Re: Where the hell is STAThread (CF 2.0)?

Mike Dimmick7-Dec-06 23:56

Mike Dimmick

7-Dec-06 23:56

STAThread is relevant to COM. There are two versions of the COM runtime available to the OEM for Windows CE. One only supports in-process COM objects, with no marshalling: the objects must support the free-threaded model. The other version is a reasonably full DCOM implementation which supports full cross-apartment and cross-process marshalling (in some versions, also cross-machine connections but I think this was dropped in CE 5.0 and later).

Windows Mobile devices include only the simpler in-process, no-marshalling version. Compact Framework therefore doesn't support the more complete version. There's no point having the STAThread attribute because the underlying support isn't there.

Stability. What an interesting concept. -- Chris Maunder

Performance issues using waveInxxxx() on Pocket PC

stolu1-Dec-06 6:07

stolu

1-Dec-06 6:07

Hi,

I have developed an audio record/playback app using Visual Studio 2005 on i-mate JAM (Windows Mobile 2003 OS). If I record and play back a large single buffer, I get good quality audio. However, if I fragment the buffer into smaller records and use the callback facility provided with waveInOpen(), I get bad quality audio and the audio takes longer to play. This seems to be due to the fact that the overhead in preparing/unpreparing and adding buffers is creating a burden on the system. I find this strange since the micro is a 400Mhz Arm device that has plenty of steam. I have tried using the event-based notification and the windows message notification, even polling the flag in the WAVEHDR structure. I am also using double-buffering.

Without including the actual code, I wondered if anyone else has experienced problems like this using the audio wave function on a Pocket PC ?

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