DB to use instead of pocket access + forms navigation

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  - 1
    - Tab control I have added to a form a Tab control but everytime I open my form, the tab pages are messed yp, they are not in the order i added the Thanks Tag: DB to use instead of pocket access + forms navigation Tag: 27164
  - 2
    - How to create a setup H I need to start testing my app on the PDA, but how can i deploy it there I want to create a setup, but i think i miss the way how to put the compactframework, and the sql server ce in the setup.. can u help me? plzzzzz :) Tag: DB to use instead of pocket access + forms navigation Tag: 27162
  - 3
    - Shifting around forms. Actually, I am having this problem long time ago. It applies to both of my VB.NET programming and the Compact Framework. Like what we can do last time in VB6....instead of closing a form, we can temporarily hide a form and shift to another form. After that, we can get back to that old created form easily by asking it to show. However, this seems not to be the situation to me in .NET framework. I don't know how to refer back to a old created form instance. To create a new instance, I will: Dim frmTest as New frmTest frmTest.Show How about not to close an instance and to refer back to that instance? I am very grateful to someone out there who is willing to help me on this. Thank you. Tag: DB to use instead of pocket access + forms navigation Tag: 27157
  - 4
    - Is the a way to add Quicktime Video into vb.net I have some quicktime video clips is need to add into a program form. Is there a way? Tag: DB to use instead of pocket access + forms navigation Tag: 27156
  - 5
    - How connect GRS internet connection Hi, how can I connect from code a GPRS internet from VBNET connection defined in connections from my PocketPC? Thanks in advance Tag: DB to use instead of pocket access + forms navigation Tag: 27155
  - 6
    - Where can I find RFUtils ? Hello, I've read in this forum that the RFUtils library will tbe included in thne next release of the OpenNetCF. But I would like to test this library now if possible. I cannot find this library over the Internet ? Do you know where I could find this library or when the next release of the OpenNetCF SDF will be released ? than you for your answer Yannick Tag: DB to use instead of pocket access + forms navigation Tag: 27154
  - 7
    - help with datatable I am having trouble with getting at the last record in a datatable. I need to find the id and increment it. int x = logtbl.Rows.Count; string x_id = logtbl.Rows[x]["fldid"].ToString(); //here it tells me that x_id has a null value because no row exists at (x = 8) int id = Convert.ToInt32(x_id); MessageBox.Show(x_id); Is there an easier way to accomplish this. Tag: DB to use instead of pocket access + forms navigation Tag: 27144
  - 8
    - Adding picture/icon in ListView Control I cannot find the way to attach a picture/icon to my items in the listview control even it was set to be shown in small items view. The command I am using is: ListView.Items.Add(New ListViewItem("xxxx", 1) where "xxxx" is a string and 1 is the listing no of my icon in the image list. However, the system is prompting error on that. Other than that, I cannot show a picture on my message box also, like what we could in vb.net, vbquestion/vbinformation.....those kind of pictures. Is there anyways to do it in compact framework? Thanks, to whom are helping me with the above matters. Thank you. Tag: DB to use instead of pocket access + forms navigation Tag: 27142
  - 9
    - Tabpages order in Tab Control In order to speed up my application, I try to apply the tab control more oftenly to reduce forms opening. However, after maybe somewhile of debugging, I found the sequence of tab pages shown up while debugging was not following the way it was designed in the design mode. How could this happen? Is there any ways I can fix the sequences of my tab pages? Furthermore, this situation appear in my listview control also. The icons (in the large icon view) found to be in different sequences as they were designed also. Many thanks to whom is going to help me on the above problems. Thank you. Tag: DB to use instead of pocket access + forms navigation Tag: 27141
  - 10
    - No DNS server Sorry if this is a repost, I don't think the first on sent. I have made a program that runs on a .net PocketPC that talks over a wireless network with a server running a program that is not written in .net. The program works fine here, but gives an error message of "No such host is known" at the customers location. I do not think they have a DNS server at their place. In csharp how do you connect with TCP to a server without causing a DNS lookup. Here is the code I am using now. Not that ServerAddr is a string containing the valid IPAddress of the server. socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); socket.Blocking = true; IPHostEntry IPHost = Dns.GetHostByAddress(IPAddress.Parse(ServerAddr)); string[] aliases = IPHost.Aliases; IPAddress[] addr = IPHost.AddressList; IPEndPoint ipepServer = new IPEndPoint(addr[0], Port); socket.Connect(ipepServer); I can give you the output of IPConfig run from the server if it will help. Also I can ping the server from the pocketPC so I know it can see it. Tag: DB to use instead of pocket access + forms navigation Tag: 27130
  - 11
    - program automatically starts after cab install Can the cab file produced by a .net smart device solution be built in such a way so that the program automatically starts after it has been installed to the CE device? thanks, Jesse Tag: DB to use instead of pocket access + forms navigation Tag: 27128
  - 12
    - TypeLoadException Does anyone else have any thoughts on this? ---------------------------------------------------------------------------- I'm using VB. "Chris Tacke, eMVP" <ctacke[at]Open_NET_CF[dot]org> wrote in message news:Oa4amiwNEHA.1340@TK2MSFTNGP12.phx.gbl... > Are you using VB or C#. > > -Chris > > > "Tommy Malone" <tommy@angula.net> wrote in message > news:#Tw93GuNEHA.268@TK2MSFTNGP11.phx.gbl... > > This is not working for me. If, in fact, I have referenced the wrong > > mscorlib.dll file, I cannot seem to find where the incorrect reference > lies. > > Here is what is listed under my mscorlib references property: > > > > E:\Program Files\Microsoft Visual Studio .NET > > 2003\CompactFrameworkSDK\v1.0.5000\Windows CE\mscorlib.dll > > > > If I'm understanding correctly, once the installation of the OpenNETCF is > > done, adding a component to my project and the deploying that project with > > that component requires no additional steps (specifically on the device). > > Can someone confirm this for me? > > > > I have re-installed OpenNETCF twice now. I have had no luck getting my > > application to run with any of the tools included. > > > > I am an idiot, so I'm not suggesting anything is wrong with the tools, but > > only that I am not having much luck making them work. :( > > > > > > > > "Chris Tacke, eMVP" <ctacke@spamfree-opennetcf.org> wrote in message > > news:uARG1KtNEHA.1420@TK2MSFTNGP09.phx.gbl... > > > See this topic: > > > > > > http://opennetcf.org/forums/topic.asp?TOPIC_ID=1371 > > > > > > -- > > > Chris Tacke, eMVP > > > Co-Founder and Advisory Board Member > > > www.OpenNETCF.org > > > --- > > > Windows CE Product Manager > > > Applied Data Systems > > > www.applieddata.net > > > > > > > > > "Tommy Malone" <tommy@angula.net> wrote in message > > > news:%23WgSsItNEHA.1956@TK2MSFTNGP10.phx.gbl... > > > > I got this error trying to run an application with an OpenNETCF link > > > label. > > > > > > > > TypeLoadException > > > > > > > > Could not load type OpenNETCF.Windows.Forms.LinkLabel from assembly > > > > OpenNETCF.Windows.Forms, Version=1.0.2904.0, Culture=neutral, > > > > PublicKeyToken=30C767B29D52D6E6. > > > > > > > > I know these are all my mistakes, but I can't seem to make this work. > > > > > > > > > > > > > > > > > > > > > > > > Tag: DB to use instead of pocket access + forms navigation Tag: 27127
  - 13
    - Networks with no DNS I have written a .net program that runs on a pocketPC that talks wirelessly to a non .net program on a sever though sockets. The program works fine on our network here, but on the customers it gets an exception "No such host is known". I do not think their network has a DNS server. Here is code I use to connect. The string ServerAddr is the IP address of the server in string form. socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); socket.Blocking = true; IPHostEntry IPHost = Dns.GetHostByAddress(IPAddress.Parse(ServerAddr)); string[] aliases = IPHost.Aliases; IPAddress[] addr = IPHost.AddressList; IPEndPoint ipepServer = new IPEndPoint(addr[0], Port); socket.Connect(ipepServer); If it would help I could give you the results of IPConfig when run from the command line on the server. I can also ping the server from the PocketPC so I know that it can see the server. Tag: DB to use instead of pocket access + forms navigation Tag: 27126
  - 14
    - Managed Error - Symbol classes Hi Im referencing a class library provided by Symbol (I have a Symbol WLAN card) and am also coding in VB.NET with the CF Im getting a TypeLoadException when running my app. Ive references the Symbol API (Symbol.dll and Symbol.WirelessLAN.dll) in my project and installed it onto my winCE.net 4.2 device. On a buttons click event ive added the code Dim myWLAN as New Symbol.WirelessLAN.Radi Me.txt_percent.text = myWLAN.Radio.Signal.percent.tostrin but whenever this button is clicked I get the error "A managed TypeLoadException occurred at Application::Run+0xf... Any ideas how to solve this.... Thanks How do I solve it? Tag: DB to use instead of pocket access + forms navigation Tag: 27122
  - 15
    - No application config file?? Any suggestions for an alternative approach to application configurability? Preferably some kind of utility assembly that is wrapped nicely. I downloaded a utility from http://www.codeproject.com/netcf/SmartConfig.asp but it proved to be very difficult to work with. Thanks, Jesse Tag: DB to use instead of pocket access + forms navigation Tag: 27119
  - 16
    - How to resize PictureBox image Does anyone know how to resize an image in a PictureBox? I have been able to resize an image using Graphics.DrawImage in OnPaint, but CF does not support the CreateGraphics method for a PictureBox. I can select SizeMode in a PictureBox and that handles the different mode requirements that I have, but CF does not support SizeMode for anything but a PictureBox. If I could get the image associated with the Graphics object after I draw it and then pass that to the PictureBox, that would suffice, but I can't seem to find how to do that either. Any ideas will be appreciated Tag: DB to use instead of pocket access + forms navigation Tag: 27118
  - 17
    - How to get path to Templates folder? Is there a reliable culture neutral way to get the path to the built in "Templates" folder? Obviously P/Invoking SHGetSpecialFolderPath won't do the trick because it doesn't return the Templates folder path. I have an app that uses templates and documents similar to pocke word so I want to implement the Pocket Word method of sticking templates to the templates folder and regular documents elsewhere, but I have yet to find a reliable way to determine if a folder is the official Templates folder. (i.e. non english platforms obviously won't call it "templates" and a user could easily make a "templates" folder elsewhere confusing the issue) Tag: DB to use instead of pocket access + forms navigation Tag: 27112
  - 18
    - What to Use? I have a large maintenance system running in paper mills. We are moving towards Pocket PCs for the collection of lubrication and inspection information of the equipment. I am a seasoned VB6 programmer and was wonder what should I use to develop these apps. I know that eVB is free but have heard it is dying and has problems. I have VB.Net standard but It does not appear to have any tools for Pocket PC development. First, is eVB a bad choice, and, what version of VB.net (or visual Studio) would I need to develop for pocket PC's? I have visual studio 6 enterprise. What version of VS.net (should/can) I get at a reasonable upgrade price? Thanks, Kim Dobranski > > Tag: DB to use instead of pocket access + forms navigation Tag: 27089
  - 19
    - Marshal function leaking memory Hi, I hope someone can help with this one. I'm using below function but it is leaking memory although an article on MSDN says it should not leak memory. Dim TopHandle As Integer TopHandle = GetForegroundWindow() Dim buffer() As Byte Dim buffersize As Integer = 250 Dim p As IntPtr = LocalAlloc(&H40, buffersize) GetWindowText(TopHandle, p, buffersize) Dim w As String // Take away below line and the memory leak is gone w = System.Runtime.InteropServices.Marshal.PtrToStringUni(p) LocalFree(p) The marshal function is causing the memory leak. What am I doing wrong? Thanks, Jo. Tag: DB to use instead of pocket access + forms navigation Tag: 27088
  - 20
    - GetTotalMemory, GlobalMemoryStatus Hi Hopefully someone can help me clarify some memory issues and in particular the difference between GetTotalMemory & GlobalMemoryStatus... Apparently GetTotalMemory(false) retrieves the number of bytes currently thought to be allocated. I assume the bytes returned reflect only the managed bytes(objects) that *my* managed code has allocated, is that correct? In other words if I have PInvoke calls that allocate memory that would not be included, right? Is there anything else GetTotalMemory excludes that one would assume is included? I observe a large difference between what GetTotalMemory returns and what GlobalMemoryStatus reports (taking in account the memory used by the system. No other apps running). I am guessing this is because the GlobalMemoryStatus includes the JITed code as used memory whereas GetTotalMemory doesn't; is that correct? Still the discrepancy is large so there must be other factors that I am not aware of... For example when GetTotalMemory returns 446KB GlobalMemoryStatus (or indeed the memory control panel or even the remote system info from eVC) shows 9072KB. What extra bytes is it including? It seems even the simplest CF app (8KB exe) consumes over 1MB of memory. Is that right or is there some flaw in my approach? Also GC.Collect affect the results of GetTotalMemory but not the results of GlobalMemoryStatus... is that in line with your observations? Note that when the above results are observed, I then leave the unit/app running for at least 1 hour (in idle mode) and the results remain the same... I have also used the slider to effectively force a memory load of over 95%... Cheers Daniel Tag: DB to use instead of pocket access + forms navigation Tag: 27086
  - 21
    - OOM component, OutOfMemoryException Hi I have been experiencing the OOM dialog that CE throws up so I am trying to diagnose where the leak in my app is (assuming there is one)... The dialog pops up with the caption "Program Memory is Low". Then there are options to close a form down or "Convert some Storage Memory to Program Memory...". I understand this is the OOM component... I would like to handle this situation in my code rather than have the OS do it not only because that dialog actually goes beyond our (240x320) screen but because I would rather reset the unit (or restart the app) if a GC.Collect doesn't help at that point... So the questions are: 1. Has anybody else done this before? I understand that I will have remove the OOM component and then call SetOOMEvent (just changing the registry values had no effect)... I think I'll pass it a handle and 0s for the remaining 4 values.. Anybody see a problem with that? 2. Shouldn't I get an OutOfMemoryException when the low memory condition occurs? Replicating a low memory condition (using the memory slider) always results in the OOM dialog coming up and never an OutOfMemoryException. Could it be a case of the dialog popping up before the GC has a chance to collect the garbage? Cheers Daniel PS This is with CF 1.0 SP2 on own CE 4.2-based device Tag: DB to use instead of pocket access + forms navigation Tag: 27085
  - 22
    - Printing Invoices I've gone through every post I could find and have found 3 solutions, but none of them are working for me. The situation: My app will be used by field technicians to print service invoices out in the field. They will be printing to HP printers via IrDA. The problem is that I can't format and print my invoices. The first solution I found was FieldSoftware's PrinterCE tool, but my employer is a small pest control business and can't afford to buy this for me. It would work perfectly, as I could format the invoices properly, but it's not an option for me. The second solution I read about was creating an HTML document and somehow printing that. This would be great if someone could explain to me how I could print an HTML file. I found the HP Mobile Printer SDK, but it doesn't support printing HTML files. It only supports a handful of text/picture files and I don't know if I could even convert my HTML file to a format that the printer SDK could even use. Any ideas on this? The third solutions seems to be using PInvoke. I've never used it before, but I poked around have a general idea of how it works. It sounds like I'm supposed to use some methods in coredll.dll, but I can't figure out which ones. I can't even figure out what methods are in that file. Someone mentioned "dumpbin /all coredll.dll", but when I ran that I got an error that said I was missing mspdb71.dll, which Google knows nothing about. Is there a site somewhere that lists the members I could PInvoke in that file? Is that the file I'm even supposed to be using? Any help would be much appreciated. I've been spinning my wheels for several days now, going through forums and websites. Thanks in advance, Deadly_Bait Tag: DB to use instead of pocket access + forms navigation Tag: 27083
  - 23
    - Closing a process(windows app) created with createprocess. Hi All, I have an app that starts up an other windowed app using createprocess. Now when it's time to close i want the other app to close too. How would i do that? I also would like to know if the other app got closed (basicly crashed :-) ), Is there a way to monitor a process if it's still alive? Thanks in advance, Richard. Tag: DB to use instead of pocket access + forms navigation Tag: 27077
  - 24
    - Exceptions in exceptions in webservices Hey Cryptic subject, eh... In my webservice im doing code like this: try { //Some code that might generate an exception } catch { //Im logging all errors to a file here } On my PDA im doing code like this: try { //Calling my webservice here } catch { if the webservice fails the user gets a message and i can see the error in the log file } Now, my question is. What happens if writing to my logfile fails? What i would like to happen is that i can tell the user to contact me, so that i can take action on the issues. Since the logfile is my only way to see that errors has been generated its very important that i can see the errors. So i have tried to make a try catch block inside the catch in the webservice. That should raise an exception if writing to the log file fails. But even though it probably does that, all i can see on my PDA is the same error as when i just wrote to the logfile without using a try catch for that. Am i misunderstanding this?? -- Jimmy Tag: DB to use instead of pocket access + forms navigation Tag: 27069
  - 25
    - RAS.Dial + WebRequest -> Error? Dear NG, i need to make a RAS.Dial in my App. But due to some circumstances i also need to make a WebRequest to a page. If i call Ras.Dial and then make the WebRequest, the System tries to make another connection on its own and gives me an Error, saying that it cant establish a connection. If i put the Timeout to 5 Seconds the WebRequest also throws a timeout-exception. I wrote a small app which reproduces this issue and which i put at the end of this post. Please remember to fill in your custom connection, user and passwort for the RAS.Dial. If anyone knows the problem and can tell me how to solve it, i will appreciate it. Greetz Jens Code: using System; using System.Data; using System.Xml; using System.Windows.Forms; using System.Collections; using System.Text; using System.Net; using System.IO; using System.Net.Sockets; using System.Diagnostics; using System.Text.RegularExpressions; using System.Globalization; using System.Runtime.InteropServices; using System.ComponentModel; namespace WeichenTest { /// <summary> /// Zusammenfassung für Form1. /// </summary> public class Form1 : System.Windows.Forms.Form { private System.Windows.Forms.Button button1; private System.Windows.Forms.Button button2; private System.Windows.Forms.Button button3; private System.Windows.Forms.MainMenu mainMenu1; private System.Windows.Forms.Button button4; int con = 0; public Form1() { InitializeComponent(); } protected override void Dispose( bool disposing ) { base.Dispose( disposing ); } #region Vom Windows Form-Designer generierter Code private void InitializeComponent() { this.mainMenu1 = new System.Windows.Forms.MainMenu(); this.button1 = new System.Windows.Forms.Button(); this.button2 = new System.Windows.Forms.Button(); this.button3 = new System.Windows.Forms.Button(); this.button4 = new System.Windows.Forms.Button(); // // button1 // this.button1.Location = new System.Drawing.Point(80, 16); this.button1.Size = new System.Drawing.Size(88, 24); this.button1.Text = "RAS.Dial"; this.button1.Click += new System.EventHandler(this.button1_Click); // // button2 // this.button2.Location = new System.Drawing.Point(80, 64); this.button2.Size = new System.Drawing.Size(88, 24); this.button2.Text = "Make Request"; this.button2.Click += new System.EventHandler(this.button2_Click); // // button3 // this.button3.Location = new System.Drawing.Point(80, 112); this.button3.Size = new System.Drawing.Size(88, 24); this.button3.Text = "RAS.Hangup"; this.button3.Click += new System.EventHandler(this.button3_Click); // // button4 // this.button4.Location = new System.Drawing.Point(80, 160); this.button4.Size = new System.Drawing.Size(88, 24); this.button4.Text = "EXIT"; this.button4.Click += new System.EventHandler(this.button4_Click); // // Form1 // this.Controls.Add(this.button4); this.Controls.Add(this.button3); this.Controls.Add(this.button2); this.Controls.Add(this.button1); this.Menu = this.mainMenu1; this.Text = "Form1"; } #endregion static void Main() { Application.Run(new Form1()); } private void button1_Click(object sender, System.EventArgs e) { string connection = "T-Mobile GPRS2"; string user = "t-d1"; string pw = "t-d1"; Cursor.Current = Cursors.WaitCursor; RAS.Dial(connection, user,pw, ref con); Cursor.Current = Cursors.Default; } private void button2_Click(object sender, System.EventArgs e) { HttpWebRequest hwrRequest; HttpWebResponse hwrResponse; string strUrl = @"http://www.microsoft.com/"; bool bConnected = false; try { hwrRequest = (HttpWebRequest)WebRequest.Create(strUrl); hwrRequest.Timeout = 5000; hwrResponse = (HttpWebResponse)hwrRequest.GetResponse(); if(hwrResponse.StatusCode == HttpStatusCode.OK) { MessageBox.Show("WebAccess() -> true"); bConnected = true; } } catch(WebException we) { MessageBox.Show("WebAccess Error: "+we.ToString()); bConnected = false; } catch(Exception ex) { MessageBox.Show("WebAccess Error: "+ex.ToString()); bConnected = false; } finally { hwrRequest = null; hwrResponse = null; } MessageBox.Show("WebAccess -> "+bConnected.ToString()); } private void button3_Click(object sender, System.EventArgs e) { RAS.HangUp(con); } private void button4_Click(object sender, System.EventArgs e) { Application.Exit(); } } public class RAS { [DllImport("coredll.dll", CharSet=CharSet.Unicode)] private static extern int RasDial (int dialExtensions, int phoneBookPath, IntPtr rasDialParam, int NotifierType, int notifier, ref int hRasConn); [DllImport("coredll.dll", CharSet=CharSet.Unicode)] private static extern int RasHangUp (int hRasConn); [DllImport("coredll.dll", CharSet=CharSet.Unicode)] private static extern int RasGetConnectStatus (int hRasConn, ref Object lpRasConnStatus); private struct rasDialParams { public int dwSize; } public struct VBRasDialParams { public string EntryName; public string PhoneNumber; public string CallbackNumber; public string UserName; public string Password; public string Domain; public long SubEntryIndex; public long RasDialFunc2CallbackId; } public static bool Dial(string szRasConnection, string szUsername, string szPassword, ref int hRasConnection) { rasDialParams p = new rasDialParams(); int dwSize; IntPtr strPointer; char[] bRasConnection = new char[szRasConnection.Length]; //char[szRasConnection.Length] bRasConnection; IntPtr offset; int hrasconn = 0; char[] bUsername = new char[szUsername.Length]; char[] bPassword = new char[szPassword.Length]; int ret; dwSize = Marshal.SizeOf(p); dwSize += Marshal.SystemDefaultCharSize * 21; dwSize += Marshal.SystemDefaultCharSize * 129; dwSize += Marshal.SystemDefaultCharSize * 49; dwSize += Marshal.SystemDefaultCharSize * 257; dwSize += Marshal.SystemDefaultCharSize * 257; dwSize += Marshal.SystemDefaultCharSize * 16; bRasConnection = szRasConnection.ToCharArray(); bUsername = szUsername.ToCharArray(); bPassword = szPassword.ToCharArray(); strPointer = GPRSConnect.AllocHLocal(dwSize); offset = new IntPtr(strPointer.ToInt32() + Marshal.SizeOf(p)); Marshal.Copy(bRasConnection, 0, offset, szRasConnection.Length); offset = new IntPtr(offset.ToInt32() + Marshal.SystemDefaultCharSize * 21); Marshal.Copy("".ToCharArray(), 0, offset, "".Length); offset = new IntPtr(offset.ToInt32() + Marshal.SystemDefaultCharSize * 129); Marshal.Copy("".ToCharArray(), 0, offset, "".Length); offset = new IntPtr(offset.ToInt32() + Marshal.SystemDefaultCharSize * 49); Marshal.Copy(bUsername, 0, offset, szUsername.Length); offset = new IntPtr(offset.ToInt32() + Marshal.SystemDefaultCharSize * 257); Marshal.Copy(bPassword, 0, offset, szPassword.Length); offset = new IntPtr(offset.ToInt32() + Marshal.SystemDefaultCharSize * 257); Marshal.Copy("".ToCharArray(), 0, offset, "".Length); try { ret = RasDial(0, 0, strPointer, 0, 0, ref hrasconn); if (ret == 0) { hRasConnection = hrasconn; return true; } else { return false; } } catch (Exception) { return false; } } public static int GetConnectStatus(int hrasconn, ref object lprasconnstatus) { return RasGetConnectStatus(hrasconn, ref lprasconnstatus); } public static bool HangUp(int hrasconn) { int ret; try { ret = RasHangUp(hrasconn); if (ret == 0) { return true; } else { return false; } } catch (Exception ex) { return false; } } } public class GPRSConnect { [DllImport("coredll.dll", CharSet=CharSet.Unicode)] private static extern IntPtr LocalAlloc (int uFlags, int uBytes); [DllImport("coredll.dll", CharSet=CharSet.Unicode)] private static extern IntPtr LocalFree (IntPtr hMem); [DllImport("coredll.dll", CharSet=CharSet.Unicode)] private static extern IntPtr LocalReAlloc (int hMem, int uBytes, int fuFlags); private const int LMEM_FIXED = 0; private const int LMEM_MOVEABLE = 2; private const int LMEM_ZEROINIT = 64; private const int LPTR = LMEM_ZEROINIT; //(LMEM_FIXED || LMEM_ZEROINIT); // Allocates a block of memory using LocalAlloc public static IntPtr AllocHLocal(int cb) { return LocalAlloc(LPTR, cb); } // Frees memory allocated by AllocHLocal public static void FreeHLocal(IntPtr hlocal) { if (!hlocal.Equals(IntPtr.Zero)) { if (!IntPtr.Zero.Equals(LocalFree(hlocal))) { throw new Exception("win32 error"); } hlocal = IntPtr.Zero; } } // Resizes a block of memory previously allocated with AllocHLocal public static IntPtr ReAllocHLocal(int pv, int cb) { IntPtr newMem = LocalReAlloc(pv, cb, LMEM_MOVEABLE); if (newMem.Equals(IntPtr.Zero)) { throw new Exception("out of memory"); } return newMem; } // Copies the contents of a managed string to unmanaged memory public static IntPtr StringToHLocalUni(string s) { if (s == null) { return IntPtr.Zero; } else { int nc = s.Length; int len = 2 * (1 + nc); IntPtr hLocal = AllocHLocal(len); if (hLocal.Equals(IntPtr.Zero)) { throw new Exception("out of memory"); } else { System.Runtime.InteropServices.Marshal.Copy(s.ToCharArray(), 0, hLocal, s.Length); return hLocal; } } } } } Tag: DB to use instead of pocket access + forms navigation Tag: 27068
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    - how to create a VB/C# CF helper dll Hi, I program in eVB 3.0 and Pocket PowerBuilder for WinCE devices. I started looking into the CF using VB/C# recently in order to create some a DLL that does some simple things like memory available, battery status, get handheld name, uniques ID, ... I have found many example of how to implement these APIs and have a working VB.net executable. What I would like to do is create a class library (DLL) that would expose these methods to another application. My problem is I don't think I'm doing it properly. I have created a VB.net Class library project, (see below) which compiles fine, and I have created public functions for a couple methods I want exposed. Ideally, I would like to access these methods like a standard API call. I would declare the function as coming from this DLL I wrote with a return of a particalur type. Can this be done? I couldn't find any information on how to explicitly expose the methods other than making their definitions Public. The DLL does not appear to get registered in HKCR to expose the class "Support". Any help would be greatly appreciated. Thanks, Bob Public Class Support <System.Runtime.InteropServices.DllImport("coredll.dll", _ SetLastError:=False)> _ Public Shared Sub GlobalMemoryStatus(ByRef ms As MEMORY_STATUS) End Sub <System.Runtime.InteropServices.DllImport("coredll.dll", _ SetLastError:=False)> _ Public Shared Function GetSystemPowerStatusEx(ByRef lpSystemPowerStatus As SYSTEM_POWER_STATUS) As Int32 End Function Public Function Get_Battery_Percent_Remaining() As Int16 Dim p As New SYSTEM_POWER_STATUS GetSystemPowerStatusEx(p) Return CInt(p.BatteryPercent) End Function Public Function Get_Memory_Total() As String Dim p As New MEMORY_STATUS GlobalMemoryStatus(p) Return p.dwTotalPhys.ToString() End Function Public Function Get_Memory_Available() As String Dim p As New MEMORY_STATUS GlobalMemoryStatus(p) Return p.dwAvailPhys.ToString() End Function Public Structure SYSTEM_POWER_STATUS Public ACLineStatus As Byte Public BatteryFlag As Byte Public BatteryPercent As Byte Public Reserved1 As Byte Public BatteryLifeTime As Int32 Public BatteryFullTime As Int32 Public Reserved2 As Byte Public BackupBatteryFlag As Byte Public BackupBatteryPercent As Byte Public Reserved3 As Byte Public BackupBatteryLifeTime As Int32 Public BackupBatteryFullTime As Int32 End Structure Public Structure MEMORY_STATUS Public dwLength As UInt32 Public dwMemoryLoad As UInt32 Public dwTotalPhys As UInt32 Public dwAvailPhys As UInt32 Public dwTotalPageFile As UInt32 Public dwAvailPageFile As UInt32 Public dwTotalVirtual As UInt32 Public dwAvailVirtual As UInt32 End Structure End Class Tag: DB to use instead of pocket access + forms navigation Tag: 27058
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    - Shareware financial techniques? Does anyone have experience with selling shareware? If so, how did you handle the finances? How did you implement the change from 'try' to 'paid for' in the code? ====== Richard Lewis Haggard Tag: DB to use instead of pocket access + forms navigation Tag: 27056
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    - can not delete excutable in Pocket PC hi all, We are developing an pocket pc application for months, and we often see a weird bug: since deploying informs to be failed, we try to delete the executable but we can not delete it in pocket pc sometimes, then we have to reset device!!! This event often happen when we stop debugging in VS.NET 1.1 2003, and occur both in device and emulator. Any advice would be very appreciated. FYI: developing machine: P4, WinXP pocket pc: Fujitsu Pocket LOOX Wireless Model（FLX3AW） Normally, we do the exact steps : rebuild, connect, deploy and debug. Many thanks, Khanh Tag: DB to use instead of pocket access + forms navigation Tag: 27046
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    - class to class Hey I was under the impression that it was possible to return an object of a class from a webservice, and then assign it to an instance of the same object on the PDA program receiving the returned object. Example webservice: namespace WS { [WebService(Namespace=http://whatever)] public class WS : System.Web.Services.WebService { retClass retObj = new retClass(); ... ... ... [WebMethod] public retClass Get_Value(){ ... ... ... retObj.retInt = some value; retObj.retString = "some string" retObj.retDS = some dataset; return retObj; } } public class retClass { public int retInt = 0; public string retString = ""; public DataSet retDS = null; } } And the following is my PDA app.: { public class retClass { public int retInt = 0; public string retString = ""; public DataSet retDS = null; } mainclass{ WS ws = new WS(); retClass retObj = new retClass(); retObj = ws.Get_Value(); //This is where VS tells me that it cant convert ws.Get_Value() into a retObj } } Well i left some code out (guess you allready figured out). Ok, what is going wrong? Why cant i do this? -- Jimmy Tag: DB to use instead of pocket access + forms navigation Tag: 27044
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    - Enable SIP without having a mainmenu or taskbar Hi @ all, after reading a lot of stuff, I couldn't find a solution. I have an application, written in VB.NET, which needs to run in kiosk mode without any tasbar, main menu or something else. As it is an application, where data has to be entered, I really need a small keyboard, which could be activated if needed. Does anybody know how to split the SIP from being dependent on a menu/taskbar? Does anybody know another possible solution like a keyboard-control? Thanks in advance for your help, Bastian Tag: DB to use instead of pocket access + forms navigation Tag: 27042
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    - Starting a process after the form is visible? Hi All, I want to do the following, show the form and after the form is visible do some processing, so i can show the process on the form. But the problem is that i can't seem to find an event that get fired after the form is visible. Am i missing something? I'm using c# for this. Please help, thanks in advance, Richard. Tag: DB to use instead of pocket access + forms navigation Tag: 27037
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    - Help needed with SQL CE Ok, first of all I'd like to know if this statement is true : The basic integer data type can handle data values ranging from -2,147,483,638 through 2,147,483,647 in SQL i mean... And is there some limit in the number of rows in a CE database ??? Because i'm trying to read in a database which has 2 tables. One with 4 columns and like 80 rows, the second has 4 columns and about 39000 rows. When I try to fill the databse I get the following error : System.Data.SqlServerCe.SqlCeError : The data is truncated so I guess or that i'm using too big of a number to be contained in the int field, or I'm using too big of a string in the nvarchar field ??? So what is bigger than int in SQL ??? Thought I saw bigint somewhere but I just cant seem to find it :( thanx... Tag: DB to use instead of pocket access + forms navigation Tag: 27031
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    - How to find out the Processor type prgramaticaly Dear All, How to find out the type of the proccessor of my Pocket PC like ARM or SH3 or MIPS etc Programatically.. The thing is I want to install the CAB file deppends upon the processor.So runtime i want to know which is the processor. One more thing how can i download the application from web depends upon the processor. Thanking you all. Regards Joby M.Chacko Tag: DB to use instead of pocket access + forms navigation Tag: 27028
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    - General access to Windows Directories on PPC, C# Hi all, During installation of my PPC app (C#), I install a custom font file (TTF) into the \Windows\Fonts directory on the PPC. This is achieved in the .INF file by specifying its location as %CE15%, a macro string. However, in my C# code, I hard-code this path in one of my global strings, as follows: public static string strFontPath = @"\Windows\Fonts\"; I have now found that international versions of Windows do not use the English name "Fonts" as a folder name. Are there macro-like strings in C# that I can use to access the specific Font folder without the need to hard-code it? Or is there a more "international" standard of accessing these folders without knowing the local language? In fact, this question will apply to all sub-folders under \Windows. I understand that the word "Windows" is used as a folder for all languages but I am not 100% sure of this. Regards, Neville Lang Tag: DB to use instead of pocket access + forms navigation Tag: 27024
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    - CF.Net TCP client I hope that this is just a really easy question. Why does this command work on the emulator, but causes a 'host not found' exception on a device, when the device can ping the ip address listed and the server program is running? Connection i via 802.11b network. TcpClient client = new TcpClient("192.168.0.100", 11000); Tag: DB to use instead of pocket access + forms navigation Tag: 27020
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    - .net cf & webservices Hi, Can anybody tell me does .net cf support sessions when using a soap web service? If not, can you tell me where it says so in the documentation or point me to some other info or work around?? Thanks Josh Tag: DB to use instead of pocket access + forms navigation Tag: 27019
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    - InputPanel Hi How to use an InputPanel without including mainmenu? Is it possible to include the InputPanel on a status bar? Thanks Tag: DB to use instead of pocket access + forms navigation Tag: 27015
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    - Pocket PC software licensing I've developed a couple consumer-oriented Pocket PC programs. How does one go about implementing Pocket PC software licensing? --TWestley Tag: DB to use instead of pocket access + forms navigation Tag: 27010
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    - COMPACT FRAMEWORK HELP!!! I've made a compact framework program. It will invoke some web service methods. The program can be run perfectly in PocketPC.NET. But it can NOT be run in PC. When it invokes web service methods, error will occur. Can you help me ? Thanks! The error message : See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box. ************** Exception Text ************** System.InvalidOperationException: Method WSvc_PL.AddNewFromNewfile can not be reflected. ---> System.IO.FileNotFoundException: File or assembly name System.Web.Services, or one of its dependencies, was not found. File name: "System.Web.Services" at System.Reflection.CustomAttribute.GetDataForPropertyOrField(Boolean& isProperty, Object& value, Type& type, Boolean isLast) at System.Reflection.CustomAttribute.GetObject() at System.Reflection.CustomAttribute.CheckConsistencyAndCreateArray(CustomAttri bute caItem, Type caType) at System.Reflection.CustomAttribute.GetCustomAttributes(MemberInfo member, Type caType, Boolean inherit) at System.Reflection.RuntimeMethodInfo.GetCustomAttributes(Type attributeType, Boolean inherit) at System.Web.Services.Protocols.LogicalMethodInfo.GetCustomAttributes(Type type) at System.Web.Services.Protocols.SoapReflector.GetSoapMethodAttribute(LogicalMe thodInfo methodInfo) at System.Web.Services.Protocols.SoapReflector.ReflectMethod(LogicalMethodInfo methodInfo, Boolean client, XmlReflectionImporter xmlImporter, SoapReflectionImporter soapImporter, String defaultNs) === Pre-bind state information === LOG: DisplayName = System.Web.Services, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=969db8053d3322ac (Fully-specified) LOG: Appbase = C:\Debug\ LOG: Initial PrivatePath = NULL Calling assembly : (Unknown). === LOG: Publisher policy file is not found. LOG: Host configuration file not found. LOG: Using machine configuration file from C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\config\machine.config. LOG: Post-policy reference: System.Web.Services, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=969db8053d3322ac LOG: Attempting download of new URL file:///C:/Debug/System.Web.Services.DLL. LOG: Attempting download of new URL file:///C:/Debug/System.Web.Services/System.Web.Services.DLL. LOG: Attempting download of new URL file:///C:/Debug/System.Web.Services.EXE. LOG: Attempting download of new URL file:///C:/Debug/System.Web.Services/System.Web.Services.EXE. --- End of inner exception stack trace --- at System.Web.Services.Protocols.SoapReflector.ReflectMethod(LogicalMethodInfo methodInfo, Boolean client, XmlReflectionImporter xmlImporter, SoapReflectionImporter soapImporter, String defaultNs) at System.Web.Services.Protocols.SoapClientType..ctor(Type type) at System.Web.Services.Protocols.SoapHttpClientProtocol..ctor() at OneSail.Demo01.PresentationLayer.WSvc_PL_Web.WSvc_PL..ctor() in \\daimy\Projects\Demo01\PresentationLayer\Demo01App\Web References\WSvc_PL_Web\Reference.cs:line 30 at OneSail.Demo01.PresentationLayer.FormMain.Download_Click(Object sender, EventArgs e) in \\daimy\Projects\Demo01\PresentationLayer\Demo01App\FormMain.cs:line 432 at System.Windows.Forms.MenuItem.OnClick(EventArgs e) at System.Windows.Forms.MenuItemData.Execute() at System.Windows.Forms.Command.Invoke() at System.Windows.Forms.Control.WmCommand(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at System.Windows.Forms.ContainerControl.WndProc(Message& m) at System.Windows.Forms.Form.WndProc(Message& m) at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) Tag: DB to use instead of pocket access + forms navigation Tag: 27005
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    - Unable to debug on the device :-( Hi all When I try to debug (F5) on the device I get this Error. -------------------------------------------- Launching Application Error while trying to run project: Unable to start debugging. Unable to start program <programDir>><fullpath> ------------------------------------------------------- If I start with out debugging (Ctrl+F5) the application run successfully. ??? On the Emulator I have no problem to debug. Any idea? I saw that for some pepole, installing "Windows CE .NET utilities v 1.1 for VS.NET 2003" solve this problem. It didn't solve my problem... I tried to reinstall the VS.Net 2003, the PPC 2002 SDK; PPC 2003 SDK, Active sync 3.7.1 .... My girl friend suggest to throw the computer and the IPAQ from the window, this will solve the problem, but it is a bit expensive :-) do any one have a better idea ? Thanks, Ofer Tag: DB to use instead of pocket access + forms navigation Tag: 26999
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    - Bridge between eVC++ and .NET Framework I'm working first time in eVC++ while my partner is working in C# .NET. He created some methods to access SQL CE Server, and I wrote an Today Screen Application. I need to call those methods, to get data to show in Today Screen Item. I saw some articles talking about COM interop, but always between .NET and Visual C++, not embedded VC++. My teacher said, maybe the only way is using sockets. It is possible to do that? If it is, how. Or, if is possible more than one, how (or what) is the easiest way to do that. My project ends at 28th May, so thats why the hurry. Thanx a lot Ricardo Veloso Portugal Tag: DB to use instead of pocket access + forms navigation Tag: 26995
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    - TypeLoadException I got this error trying to run an application with an OpenNETCF link label. TypeLoadException Could not load type OpenNETCF.Windows.Forms.LinkLabel from assembly OpenNETCF.Windows.Forms, Version=1.0.2904.0, Culture=neutral, PublicKeyToken=30C767B29D52D6E6. I know these are all my mistakes, but I can't seem to make this work. Tag: DB to use instead of pocket access + forms navigation Tag: 26994
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    - What would prevent 3rd party .Net classes from working in CF? Has anyone used the Infragistics .Net form classes in CF? What issues might arise trying to use those controls in CF? Tag: DB to use instead of pocket access + forms navigation Tag: 26973
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    - GIF or JPEG? Hi, is there a .NET CF control for displaying a JPEG or GIF image? Thanks! Tag: DB to use instead of pocket access + forms navigation Tag: 26967
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    - What does this build error mean? Error: The dependency 'mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=969db8053d3322ac' in project 'MohawkProfit' cannot be copied to the run directory because it would conflict with dependency 'mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. And how can I fix it? Tag: DB to use instead of pocket access + forms navigation Tag: 26958
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    - side by side i'm a little scared to try this, because i've got some needed working apps ... but what happens when i deploy a Whidbey CF V2 app to my device? it is going to need to deploy the new runtime bits to my device: will they work side-by-side? or will my V1 be overwritten? if it is not side-by-side for the tech preview, will it be when it is released? i'm asking this question with 2 device in mind: 1) HP PPC 2003 2) rede SP 2003 Thank you, casey Tag: DB to use instead of pocket access + forms navigation Tag: 26955
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    - Compression, Can It Be Done? hi, What i'm doing is grabbing the image from a picturebox, which is getting stored into a memory stream. The problem with getting the bitmap data this way is i can only get 16bit and 24bit images. This would be fine but i then want to send this data over the internet to a remote pc. Which is all do-able except the size of the bitmap data is around 57k!!! which is far far too big! So wot i need to do is compress the data. However i've searched around for the examples of how to do is and i'm not too optimistic that it can be done! The only other info you need to know is that i'm programming in VB.Net CF Thanks, Craig. Tag: DB to use instead of pocket access + forms navigation Tag: 26953
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    - Data and the .NET CF Hi, I am just wondering, do most people serve data up via XML, SQL Server CE, or what? There is no built in support for Access databases correct? Tag: DB to use instead of pocket access + forms navigation Tag: 26946
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    - How to get PocketPC's Processor type Dear All, How to find out the type of the proccessor of my Pocket PC like ARM or SH3 or MIPS etc. The thing is I want to install the CAB file deppends upon the processor. One more thing how can i download the application from web depends upon the processor. Thanking you all. Regards Joby M.Chacko Tag: DB to use instead of pocket access + forms navigation Tag: 26945
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    - String or Integer? Hi Im a relative newbie to the .NET CF and am writing in VB.NET I have a class (class A) that could hold a potential of 15 different classes in its "data" member field. I have added a field called "dataobjectname" which I set whenever I add the data member. Whenever I look to call the "convertToBytes" of on class A I read the "dataobjectname" and cast the object accordingly and call its "convertToBytes" member method I looking to optimise my code and thought that Id replace the field "String - dataobjectname" with "Int16 - dataobjectname" and use an enumeration list" before casting. Will this reduce the amount of memory used in my application? Will there be performance improvements E. Class .. .. Dim data As Object ' Can hold any 1 of 15 different objects Dim dataobjectname As String Im open to suggesting in case anyone knows of how to do away with the dataobjectname field altogether so that I save even more memory whilst my app is running Tag: DB to use instead of pocket access + forms navigation Tag: 26941

hi all,
I have to convert an existing app from eVB to VB.net and I'm asking:
what i have to do with the DB?
i know that the "pocket access + ADOCE" solution is no longer
supported (well, i don't want to use InTheHand because i'm looking for
a free solution)...
does this mean that i have necessarily to use SQL server CE?
isn't there a lighter solution?
i read on some group that "One possible replacement for Pocket Access
would be the DataSet object in ADO.NET"... what does it mean? Do i
have to create a local XML database?
any help or suggestions?

another topic: form navigation
i read an article where MS suggest to use a form caching system and a
form call stack... does anybody use this system? is it really useful
to increase application performance?
or do you use the old eVB trick with 1 real form = N frames as logical
forms?

thank you
matteo gabella

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Re: DB to use instead of pocket access + forms navigation by Ginny

Ginny
Wed May 12 09:30:05 CDT 2004

Matteo,

You could certainly create an XML "database" and use it easily with a
DataSet, but I would only recommend this approach if your data volume will
be small - maybe only a few K. For a similar but faster solution, consider
using the CSV data adapater on www.opennetcf.org. And of course SqlCe is a
great choice for large amounts of data.
--
Ginny Caughey
.Net Compact Framework MVP

"Matteo Gabella" <gabu2000@tin.it> wrote in message
news:bda2e795.0405120537.2b041373@posting.google.com...
> hi all,
> I have to convert an existing app from eVB to VB.net and I'm asking:
> what i have to do with the DB?
> i know that the "pocket access + ADOCE" solution is no longer
> supported (well, i don't want to use InTheHand because i'm looking for
> a free solution)...
> does this mean that i have necessarily to use SQL server CE?
> isn't there a lighter solution?
> i read on some group that "One possible replacement for Pocket Access
> would be the DataSet object in ADO.NET"... what does it mean? Do i
> have to create a local XML database?
> any help or suggestions?
>
> another topic: form navigation
> i read an article where MS suggest to use a form caching system and a
> form call stack... does anybody use this system? is it really useful
> to increase application performance?
> or do you use the old eVB trick with 1 real form = N frames as logical
> forms?
>
> thank you
> matteo gabella

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