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Re: dataset to xmlfile Tom John20-Dec-04 22:04 Tom John 20-Dec-04 22:04  You are probably not closing the file properly after you have written to it. Have a look at the DataSet.ReadXml and DataSet.WriteXml on MSDN, both have examples of how to code it properly: DataSet.ReadXml - MSDN[^] DataSet.WriteXml - MSDN[^] Hope this helps Tom DLL HELP Member 158672020-Dec-04 15:58 Member 1586720 20-Dec-04 15:58  How to know the functions decleared in unknown dll file of some other software Re: DLL HELP Dave Kreskowiak21-Dec-04 1:11 Dave Kreskowiak 21-Dec-04 1:11  You might want to look into PE Explorer, here[^]. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Datagrid abo el ror20-Dec-04 15:01 abo el ror 20-Dec-04 15:01  I would like to ask how can i retrieve data from the selected row of the Datagrid. Thank you. Re: Datagrid Jay Shankar20-Dec-04 16:38 Jay Shankar 20-Dec-04 16:38  Use DataGrid HitTest Method: DataGrid.HitTest method[^] Re: Datagrid ScottSingleton21-Dec-04 8:10 ScottSingleton 21-Dec-04 8:10  DataGrid1.SelectedItem.Cells(0).Text (First Column Value From Selected Row) 'Cause I'm living on things that excite me, be it pastries or lobsters or love... I'm just trying to get by, being quiet and shy, in a world full of push and shove... Jimmy Buffett - The Wino and I know VB6 Simple Question I think dougstratton20-Dec-04 10:56 dougstratton 20-Dec-04 10:56  I have a vb6 app with no forms that is run in dos window. How do I output to the window if I want to send a message. No Msgbox (I don't want things popping up) so I want something like this c:\ingroup c:\You must provide a parameter with ingroupc c:\Example ingroup /i Something like that if possible? thanks Re: VB6 Simple Question I think Dave Kreskowiak21-Dec-04 1:06 Dave Kreskowiak 21-Dec-04 1:06  VB6 couldn't target a console app. You have to call into the Win32 API to create a console and output to it. You might want to try here[^] for a couple of console classes for VB6. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Re: VB6 Simple Question I think dougstratton21-Dec-04 5:27 dougstratton 21-Dec-04 5:27  Thanks I will take a look at the samples. Do you happen to know how I pass a error level code back after terminating the code? I want to check in the batch file for errors in the code. Thanks I found one thing but I put it in the code and tested it and it booted me out of VB and I lost it Forgot to save. Re: VB6 Simple Question I think dougstratton21-Dec-04 5:37 dougstratton 21-Dec-04 5:37  Also wanted to ask if there is an easier way to do this in vb.net? Re: VB6 Simple Question I think Dave Kreskowiak21-Dec-04 6:33 Dave Kreskowiak 21-Dec-04 6:33  All of this is trivial in VB.NET since it, and any other language targeting the .NET Framework, can target a console app. Support for I/O redirection and exit codes are included. Even better support is included in the .NET Framework 2.0 and Visual Studio/Basic .NET 2005. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Re: VB6 Simple Question I think Dave Kreskowiak21-Dec-04 6:28 Dave Kreskowiak 21-Dec-04 6:28  That would be done with the ExitProcess Win32 API function. VB6 can't do it natively. Private Declare Sub ExitProcess Lib "kernel32" (ByVal uExitCode As Long) . . ExitProcess(returnCode) This will have the effect of terminating your app immediately, so you better have everything cleaned up before you call this. Also, when you launch a VB6 app from a batch file, it won't wait for it to complete. Unless, of course, you tell it to using: START /W vbApp.exe ...ERRORLEVEL statements go here RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome Re: VB6 Simple Question I think m_hussein4-Jan-05 21:06 m_hussein 4-Jan-05 21:06  hi i have strange problem in my project the keybord some time hange and you must trun off the keyborad sokt and trun on again for can type again can you help me and how i save picture in database and view in vb6 program Re: how to treat events async.? carlos_rocha20-Dec-04 6:50 carlos_rocha 20-Dec-04 6:50  Hi! Thanks for you reply.I made a little example using the AsyncCallBack class and BeginInvoke() but i reached a result that i didn't expected.I ran the beginInvoke in a different thread and the callback function is located at the form(main thread).After the beginInvoke() my code proceeded(as expected).Then the execution passed to the callback function(in the form) but it wasn´t running neither on the thread or form context, it was in a completly different thread.Strange?For me it was because i was hopping that the callback executed in the form's context.Am i doing anything wrong or is this correct? Re: how to treat events async.? Nicholas Cardi20-Dec-04 7:16 Nicholas Cardi 20-Dec-04 7:16  This is the normal behavoir of the AsyncCallBack class. However, you should not let this tread modify any of the forms controls. This is an Windows UI rule and if you violate it you will pay the price . If you need to modify the forms controls during the call back do the following in the call back function. Private Sub MyFunct() 'This is your callback function. If Me.InvokeRequired = True Then Me.Invoke("Your Delegate here") 'You can create a delegate that matches the call back 'and pass that in. After the invoke the function will be recalled and you will 'end up in the else part of this block Else 'Do your work here this code is now executing on the UI thread. End If End Sub Forever Developing Re: how to treat events async.? carlos_rocha20-Dec-04 7:29 carlos_rocha 20-Dec-04 7:29  Ok! I made that last question because i have and app that raises an event in a thread and the handler is in the main form. The context of the handler is the thread which fired the event but this isn't happening with the async. Callback, thus my confusion. When i raise and event and check out the name of the current thread it gives me the thread that fired the event, if i check the name with the callback the name isn't from the thread that executed the beginInvoke().But if you say that this is the normal procedure fine by me One less problem for me to handle. But just to know, in what thread is it running? Is it a thread from the thread pool?A system thread?Just out of curiosity... PS:Ye, i know that is a mistake to modify the UI from another thread.I found out the hard way Thanks for your concerne. Re: how to treat events async.? Nicholas Cardi20-Dec-04 7:47 Nicholas Cardi 20-Dec-04 7:47  OK, this is what I belive is happing. The AsyncCallback is creating a new thread to do the work. I am not sure where this tread comes from but I belive it is from the thread pool Dot Net creates on startup. When you call BeginInvoke that tread starts on the function you have told it to execute. When it is finished it will call your finshed call back. Forever Developing Re: how to treat events async.? carlos_rocha20-Dec-04 21:58 carlos_rocha 20-Dec-04 21:58  Thanks a bunch. That was what i though. How to build a COM or Win32 in .NET IDE kmaclean20-Dec-04 6:48 kmaclean 20-Dec-04 6:48  Help! We're getting ready to deploy and I'm trying to build a Launcher application that will run on non-.NET platforms (COM or Win32). Is there any way to build or compile a VB .NET application to output COM or Win32 code, or do I have to re-write this thing in Visual Studio 6 or InstallShield? We're shipping tomorrow! Please help! Re: How to build a COM or Win32 in .NET IDE Nicholas Cardi20-Dec-04 7:24 Nicholas Cardi 20-Dec-04 7:24  This depends on the Level of the Visual Studio Dot Net you have installed. If you have the ability to create C++ applications then you can create byte code exe's "Win32" in C++. If you are asking if a VB.Net application can be compiled as byte code, the answer to that is NO. If you use VB 6.0 then you will get semi-byte code but you will still need the vb runtime. The vb 6 runtime is installed by default for Windows 2000 and greater. For a very simple launch I would create a native C++ program. For a more complicated on I would probably use InstallShield. However, I am not sure what you mean by Launcher since InstallShield is a installer application. Best of Luck Forever Developing Excel Interop with Existing File? halhamilton20-Dec-04 3:59 halhamilton 20-Dec-04 3:59  I've found numerous examples on doing interop by creating a NEW Excel file, but would like to open an existing Excel file from VB.NET and interop with that. I've tried "guessing" how to modify the examples, but with no luck. Can anyone point me to an example of how to open an existing Excel file in VB.NET so I can interop with it? Thanks for any help on this... Hal in AZ Re: Excel Interop with Existing File? Jim Matthews20-Dec-04 6:30 Jim Matthews 20-Dec-04 6:30  hey hal, try... myExcel.Workbooks.Open(pathToFile) hope this helps -jim Re: Excel Interop with Existing File? halhamilton22-Dec-04 6:15 halhamilton 22-Dec-04 6:15  Jim, Worked fine. Thanks very much! Funny that out of 3 different books no one mentioned this. Thanks again, Hal Hal in AZ how to treat events async.? carlos_rocha20-Dec-04 3:17 carlos_rocha 20-Dec-04 3:17  Hi! I have a doubt about how to handle an event asynchronously.I have an event and a handler for that event, but after the raiseevent instruction the handler runs synchronously and my thread has to wait for the handler to terminate it's code.How can i treat this event asynchronously using the raisevent instruction? And what about delegates?Is it easier to perform with delegates? Re: how to treat events async.? Nicholas Cardi20-Dec-04 5:24 Nicholas Cardi 20-Dec-04 5:24  I am not sure but I don't think you can accomplish this with RaiseEvent. However, you can use the AsyncCallback class. Check your local help files for more information on how to use this class. Best of Luck Forever Developing

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