Hi All We are converting a VB6 app to VB.NET and have come across a little problem In VB6 the following code Private Sub User_txt_KeyPress(KeyAscii As Integer) KeyAscii = Key_Filter_Alpha(KeyAscii) End Sub Calls Function Key_Filter_Alpha(keyc%) As Integer ...more >>

Hi, I like to add to my application a help that has the same behaviour than the microsoft software (index, search,...) Is it possible? any hint please. Thanks. ...more >>

I have developed numerous reports in an app (Windows Database App) that is soon to go into production. When I built each report, CR connected to sql server on my development platform. The connection string is different than it will be at my client. How can I change the connection string so t...more >>

I have an application that needs to run in a server with specific regional settings (South America). In some part of the code, i'm retrieving values like "25,94" (that means... 25 as the integer part, 94 as the decimal part.... using a ","). The problem is that when i concatenate those values ...more >>

Hi all, with dobleclick on a control, the forms designer create a new eventhandler for the actual control. When you need an eventhandler for specific events (for example 'validating') then you have to do it manually? Or exists a way to do it with the designer? Thanks for help Peter ...more >>

Using VS 2003, Vb, MSDE... Option 1 ------------------------------------------- Thread A and B are instantiations of 2 different classes. If thread A raises an event caught by thread B, the delagate in thread B that executes is 1) running under thread A based on the debug threading window and...more >>

Hi Could somebody please explain what the following line of code means String.Format("{0}\{1}.{2:00}", C:\, myfile.txt, 1 It's actually the first argument that I don't understand. What is the purpose of "{0}\{1}.{2:00}"? I've been using VB .NET for a year now, and have never come across anyt...more >>

I looked at the string functions in .net and didnt see anything thats similar to the old vb6 Right string function. Is there another .net way to do this? Here's my suto code for what I'm trying to do: sOldString = "12345678" sNewString = Right(sOldString,4) 'sNewString should be "5678" T...more >>

Using VS 2003, VB, MSDE... I find myself using timers alot. Dosystem times or Thread times carry a much of a resource cost? Or is the cost negligible? It seems to be little resource cost. Thanks. Bob Day ...more >>

Description I have few opened MDI children forms in my MDI parent I've maximized one, work for I while and then closed it with "X" in upper-right corner (the basic way to close a form) Next thing I can see is that all my other forms are maximized even if they are not sizeable ? That happens e...more >>

Using VS 2003, VB, MSDE... I am stoping a thread with the following code: Try Thread.CurrentThread.Abort() Catch ex As Exception MessageBox.Show(ex.ToString) End Try The MessagBox shows, but then after the End Try it traverses the call stack all the way to the top (same thr...more >>

I need to allow someone to communicate by email from my webform without knowing the receivers email...Is there some vb.net code to do that using one of my servers email accounts as the sender of the message? Thanks, Trint .Net programmer trintsmith@hotmail.com *** Sent via Developersdex h...more >>

Hi ! [INTRODUCTION] I have developed a .NET library that references another .NET library. MyLibrary -> OtherLibrary I then create a COMInterop wrapper assembly to use it from a VB6 project: MyWrapper -> MyLibrary -> OtherLibrary They are all signed with the strong key (sn.exe...more >>

I have a small window that I want positioned at the lower right of an open MDI window. I know how to size it and place it (via .Left and .Top during the form load event) but what I can't figure out is how to find the MDI's inner window height/width. In VB6 we used ScaleHeight and ScaleWidth, but ...more >>

Hi All; After creating a new tab if I delete the tab I cannot close my app from the X in the upper right of the window. NE1 have a clue why. Tried stepping through the delete seems to work fine but I can not close the app?????? I am creating a new Tab this way..... ElseIf e.Button Is tbNe...more >>

hi all, I am wondering how I can get the ascii lengh of a string in VB.NET? Especially that the string consists of alpha numerics as well as chinese (double-byte) characters. Say I have a string "¢Ï¢Ð123" with the first 2 characters being double-byte, using Len() on that string would return m...more >>

I am trying to create a custom control and I have the need to implement a collection similar to the Collections that controls like the Listview control uses (ex. ColumnHeader Collection). I have not found and article that really explains how this works. Can anyone help me with this or does any...more >>

Dim Pinfo As ProcessStartInfo = New ProcessStartInfo() Pinfo.FileName = "c:\test.txt" Pinfo.UseShellExecute = True Dim p As Process = Process.Start(Pinfo) ...more >>

I have a dynamically created DataGrid which is on a page below other controls. The problem I am having is that when I enable paging for the DataGrid, it works OK EXCEPT you cannot go back to the first page. All other pages work OK. For the first page of the datagrid, the PageIndexChanged event D...more >>

I would like to see some discussion on what most small-time shops do for protecting there code---obfuscating. I can't afford professional dotfuscator at present, but would like to obfuscate and protect my work and also to be able to have patches for my app as needed. Is this impossible with...more >>

Hello all, I have a working example of Impersonation where I receive a token and a true response for a specific user. However, if I try to access a drive that has only that user's permission to access I get denied. Code below. I tried this on a XP box and a W2K box with the same results. ...more >>

Hello, I am using some external functions supplied by an ERP vendor in a windows.forms application (vb.net, visual studio.net 2003) The functions are defined as follows: ' Max startup and shutdown functions Declare Function InitMAXOrder Lib "MAXORDR2.DLL" (ByRef DataPath As Strin...more >>

Hi I am just trying to load an old style dll, not trying to pass anything to it yet but get the error below An unhandled exception of type 'System.Runtime.InteropServices.MarshalDirectiveException' occurred in dll_test.ex Additional information: PInvoke restriction: can not return variants It is ...more >>

I'm building a SQL String and I want to choose only the records that are part of the current contractID. My Variable Dim contrID = Request.Params("oId" I put it into the SQL String WHERE (JS_CRM.dbo.cntrct_cntct.ContractId = '" & contrID & "') And I get the error message Syntax error c...more >>

Hi, I have a Crystal Report in which I want to add a new IFieldObject. I make the datasource dynamically, and it works with a XML Dataset. I updated the dataset, and I am able to see the new Field in the Field Explorer -> Database Fields. But I'm just not able to add the new IFieldObject ...more >>

would there be a reason why i cannot set the backcolor on lables to be transparent. it is set to be transparent, but it does not work for some reason. any help would be greatly appreciated tony ...more >>

Does anyone know how I can determine how many visible rows there are in a vb.net Listview? There is no listview "visible row count" property like there is for a datagrid. Tks in advance for any feedback. *** Sent via Developersdex http://www.developersdex.com *** Don't just participate...more >>

I need to rename file names with a specific naming convention which includes adding a SKU number at the end of the file name and I would like to use a regular expression to do this, but I don't even know where to start on this one. For example say my file name is MyFileName.jpg and my SKU nu...more >>

I am using a third-party .Net component that raises an event with arguments as a result of a method call. Is it possible to catch this event in a mid-tier vb class, rather than a webform's code-behind class? Thanks Craig Buchanan ...more >>

Hey anyone know of a good (and possibly even low cost) bug tracking software? Preferably web based... -CJ ...more >>

Hello! Is it possible to use XP Style Buttons with Images? I can change buttons to XP Style easily, but when adding ... myButton.FlatStyle = FlatStyle.System .... button images just disappares - why? I placed images to the buttons like ... myButton.Image = ImageList1.Images(0) -...more >>

Hi there, i want to be able to print some text on an angle, so that some is hozizontal and some is vertical, is there a way to do this or am i just beign stupid even thinking about it. It would be really useful if i could do it, just not sure what i should be looking for. Any ideas would be great ...more >>

Hi, I would like to do this in VB Languague. I have an executable file in DOS mode. This executable returns informations and display them to the DOS window. Unfortunately, I have to process theses informations. The way to do that, is to redirect standard input and output, insn't it ? This ...more >>

Hello, Does anyone have any ideas how I can accomplish this using properties. I'm trying to create a property, that acts like a structure. Basically I'm trying to create a property that I could do this with. myCompanyIndex = currentCompany.Index myCompanyName = currentCompany.Value "cur...more >>

Hello, I have to read and write around one million records from an external data source to Sql Server2k every night. That's a lot of I/O. I am using VB6 for this (takes hours). I am connecting to the external data source with API's from its object library (as opposed to ODBC in which ...more >>

I found this code and it works great. Is there any way to up date the code to export attachments to (c:\Exports)? =================================================== Dim olFolderCalendar As Integer = 9 Dim olfFolderConflicts As Integer = 19 Dim olFolderContacts As Int...more >>

Has anyone stumbled upon any FREE code for ping hosts from vb.net? Any links would be greatly appreciated. Thanks in advance, -- Tim Gallivan I know I'm a great teacher because when I give a lesson, the person never comes back. ...more >>

hi, i create an excel application (MS Excel 2000 installed) in vb.net. At the end, i close all workbook and quit from excel aplication. I also set them nothing and call garbage collection. But excel application does not end, stays resident in memory so my applications gives memory error. ...more >>

I have a new Desktop Gateway PC with Windows XP Professional. Unfortunately, my scroll button does not work in any VB6 code. Does anyone know where and what driver I need, or is there another issue why the scroll isn't working now? The mouse is P/N: 7004269. Thanks. ...more >>

1) When using images for an application (such as in an ImageList or as the image for a button), are the images embedded in the application or must the image files be included in the setup package? 2) Is there a way to adjust the individual column widths of a DataGrid which has no TableStyles o...more >>

a lot of articles here flame the .NET architecture. Especially VB (classic) programmers saying how crap it is and that Microsoft has butchered the language. There are also a lot of articles asking whether or not they should make the move to VB.Net from VB6. The problem with these articles, esp...more >>

I want to iterate over fields declared like this, using reflection (and there are good reasons for that): Protected WithEvents Foo1 As Bar Protected WithEvents Foo2 As Bar .... I use the following code to get an array containing the fields (wrapped in PropertyInfo objects): Dim objs As ...more >>

Can anyone help me on how i can create a line control just like vb6?? i had try some line control created by experts on the internet which is quite similar to the one in vb6 but when creating a diagonal line , the object box becomes very big. is there any line control for vb.net where it is just...more >>

Hi, When we create customEventArgs, we also derive the classes from eventArgs( ) and I dont understand the advantage of this inheritance. This is neither an interface nor applied as attribute. I have seen similar stuff in remoting also where we derive from marshallByRef object in SAO to cr...more >>