Writing with Visual Basic.net Even the smallest piece of code with no form and no references and the debugging code removed still seems to use around 6000 k what is .net doing to consume that amount of memory ? how can i stop this from happening ? I'm trying to create a small compact efficien...more >>

Hi al,, I have written a code which displays directory listing of files from FTP server directory.I display all the files in a listview with its associated icons. To display icons, I get the resouce file name and it's index by searching from the Registry entries. I use ExtractIconsEx() Win32API...more >>

I have an application which has been created using visual basic and uses Microsoft Access Database. Till last week it was working fine. But now it is taking lot of time to execute queries. I have also checked that it is not consuming much CPU time (only 3-4%). Can anybody help me regarding...more >>

We have an application with several forms whose command buttons appear just fine the first time the form is opened. The next time it is opened the button disappears. If you click where the button should show the command is processed. The button is just not appearing. Any ideas would be...more >>

I'm trying to load an animated cursor resource directly from the exe file. I have added it in into the assembly and set it's build action to embedded resource. I have a function written as follows: Private Function GetResCursor(ByVal strIdentifier As String) As Cursor Return New Curso...more >>

Can anyone point me to an example of using the GetScrollInfo API call = from VB .NET? I've got it coded based on some stuff I've found, but I = always get error 126 (The specified module could not be found.). I'm = not sure if I've got the Declare wrong or the structure or what... = Thanks. ...more >>

I'm getting a strange error from the following code: With Me.Combobox ' Clear list .Items.Clear() ' Add items to the list .Items.Add("item1") .Items.Add("item2") .Items.Add("item3") ' Select the default item .SelectedItem = "item3" ' <--- This causes...more >>

Anybody have a source for .NET code to zoom a form from a dot to full size? Probably passe since form opaque, but I may have a good use for it. Thanks in advance, Dean Slindee ...more >>

How do you add a single file to an existing zip file with Czip? For instance: I need to add nextkeys.rnd to the mustsave.zip file. Thanks in advance!! Dave ...more >>

Once upon a time, a programmer could send the entire directory tree to a text file by using the command: dir c: >directory.txt Is there a way to do this in VB.NET? I need the text file to contain all of the directories, subdirectories, and files along with file size and total directory size...more >>

Hi All, I have a edit flexgrid, after to fill with different rows manually. How can I insert the rows of my flexgrid to my table (sql server) using ado.net? Any example? I can insert one row with the code below but when I use a for loop to my flexgrid... it doesn't work. Also do you know any ...more >>

I can't figure out how to connect to Microsoft Access. I am a new VB programmer and I am looking for a good API page to help me program. Please help!...more >>

Hi All, I want to create a customized IE Toolbar using either C# or VB.NET. Is it possible? I've come across some samples which show how this can be achieved using Vc++ (and VC.NET). But can this be achieved using C# (or VB.NET) only. Thanking you in anticipation. ...more >>

In VB6 I used to set my applications to automatically look for the = source DB in the program installation directory. If it wasnt found it = was fairly easy to pop a dialog asking the user to specify the path. I am writing an app at the moment which will require the user to connect = to the DB...more >>

I am a VB .Net newbie trying to re-code an application from VB to VB .Net 03. The application starts with a login form(frmLogin) that verify users' identity before loading the main menu form(frmMenu). frmLogin is unloaded once frmMenu is loaded. In VB, this is how I do it: In frmLogin.......more >>

Hi I have a combo box that is bound to a particular database field to fill in the selection items. When it loads up i want it to automatically default to a particular item in the dataset, so i use the following code on the form load: cboRef.SelectedValue = intValue This works fine.....more >>

I have a winform with a checkbox on it. The editor is named CBXE30. I have it bound to a bit field in SQL Server 2000. In design mode, in the databindings section of the control I have the Checked property set to DsMain1 - Contracts.E30. The binding appears to be working correctly because if...more >>

I am designing a class to represent an item in a database (containing model's of products). I need to display a listing of all of these items in a listview to be displayed to the user (so they can select, edit, or delete the item). To follow the right way cause I am new and learning OOP should...more >>

I am creating an object that has quite a few data members and need to create properties for each of them (using get/set). Can VB.Net do this automatically or do I have to type in all of the property functions? -Ivan *** Sent via Developersdex http://www.developersdex.com *** Don't just par...more >>

Greetings! I have never understood how to make docking windows do what I want them to. I now have two instances of VB.Net running. In the main one, I have the main code window in the upper left, the task list window (now with 53 Build Error tasks shown) in the lower left, a tabbed window w...more >>

Can somebody please tell me how to disable Alt-F4 in VB.Net to prevent users from closing forms?...more >>

Dear All, I have upgraded and application I developed on VB6 which uses the Mscomm1 component and reads from COM1 port data send, then sends these records to a table in SQL 2000. I upgraded the application to VB.Net windows form to use the try catch method of trapping errors, the form runs...more >>

In a multi-line text box, how can make sure that the most current line is always displayed? Currently, I have to manually move the scroll bar to the end of the box. Is there a way to automate this? TIA Brad ...more >>

hi there, I'm working on a project in Visual Basic .NET, which makes use of a dll that rquires quite a lot of stack space. Is there a way to increase the available stack space (about 10 mb should be enough :) ) ? My application is currently crashing with an exception (i can't figure out w...more >>

hi. im doing a VB project for school and i need some help. i have visual basic 6.0. here is my code for my menu calculate button, where the problem is happening. Private Sub MNUCalculate_Click() Dim original As Currency Dim salestax As Currency Dim salescharged As Currency Dim totalprice ...more >>

How to you simulate in the program a key being pressed? In this case the "end" key? Thanks, David ...more >>

Hey friends, in vb 6.0, if you wanted to display a form on top of another and, in a way lock the screen on the form, you use form2.show 1 and placing the '1' after the show, will lock the screen on form2. how is it done in vb.net ?? i hope you understood my question. Thanx ....more >>

Hi all, Is it possible to change a bgColor of a row in a datagrid ?. I am developing a windows form based application. Please let me know TIA, Kishor. ...more >>

I have a form, call it SearchCriteria, which opens another form using this code: Dim frmResults As New SearchResults() frmResults.ShowDialog() In the SearchCriteria form the users specify, well, the criteria for conducting a search. SearchResults should use that criteria to query the datab...more >>

How do I get the bounding rectangle of the row header column of the DataGrid control? I have tried using the GetCellBounds with a column value of -1 but an exception is thrown with an "out of range" index. I also tried 0 for the column but that gives the first editable column in the grid...more >>

Is there any way possible to sort the nodes of a TreeView control? Thanks! Yaron...more >>

Hi, I'm trying to implement encryption of connection string using DPAPI User Store. One of the objective is, after reading the connection string from Web.config file, my program has to know if the string is encrypted or a regular connection string, & depending on this my application uses the c...more >>

I am trying to find the definition of "Safe Printing" and cannot find out exactly what this entitles. The reason is that I am trying to print contents from a single textbox to no avail using the PrintDialog control under a security setting with only SafePrinting allowed. I have attached a sam...more >>

I am running XP. Why does part of this code fail?? Dim regVersion As RegistryKey = Nothing regVersion = Registry.LocalMachine.OpenSubKey("SYSTEM\\CurrentControlSet\\Control\\Servic es\\Tcpip\Parameters", True) If (Not regVersion Is Nothing) Then ***always fails regVersion = nothing ....cod...more >>

I have a big array 512*512 elements Wich is the best way to reset the array to 0 on each element? Redim without preserve, I have for loop and clear shared function Wich one is best optimised for speed? -- Cheers, Crirus ------------------------------ If work were a good thing,...more >>

Hello all, I have a function I have written that gets Invoices by a date range. It looks something like this: GetInvoicesbyDateRange(ByVal LBound as Date, ByVal UBound as Date, ByVal CompareTo as ????) as integer The ???? is where I have a problem. When I am using this function in c...more >>

Greetings! I am trying to write a set of macros to generate Property code for private variables. With the cursor on a line that says "Private m_MyThing as Thing", I would run the macro and Public Property MyThing() As Thing Get Return m_MyThing End Get Set(ByVal Value As ...more >>

I am new to VB.NET and I am trying to use a complex bind for a combo box. I have successfully created a data set, I have set my DataSource value to the dataset and the DisplayMember value to the field in the dataset I wish to utilize. When I run the form the combo box has no information. What am...more >>

I draw text in a bitmap and then draw the bitmap on a picturebox and get = text that is not all displayed the same. Note the different text style in the (40, 100) area. Got any insight into what is happening? Cal PS I create a bitmap thusly: Dim lDataBitmapGraphics As Graphic...more >>

I use a WinForm app for users to upload a file to my server. Basically one line of code; Response = WC.UploadData(MyUrl, "PUT", MyByteArray) Works fine except for larger files. After about 104 seconds I get a System.Net.WebException in System.dll. The message is "The operation has timed o...more >>

Hi, I fave this problem with a drop down list: I have a drop down list that work with a database. In the database I have some word with some spaces before like that "Example Example" My problem is that i need this spaces, but when I run my web application the disappear, because the html ...more >>

Hi, I fave this problem with a drop down list: I have a drop down list that work with a database. In the database I have some word with some spaces before like that "Example Example" My problem is that i need this spaces, but when I run my web application the d...more >>

Maybe I'm just not understanding these SQLReaders. When I get to trying to read a column's value: Result = SQLReader.Item("ColumnName") , I get an exception of trying to read value when no value is present. Here is the code.... Public Function GetEncounterFormID(ByVal strName As ...more >>

is it possible to create a column in a datagrid control that has button controls embedded in each of the cells of the column?...more >>

when i try to use the DataAdapter wizard and use a view instead of table i get this error. any help that can solve this problem? thanks in advance...more >>

Hi I am a Newbie to .Net can anyone let me know the diffrence between Windows.Forms and Winforms they are different version of totally different and are some methods different too Thanks...more >>

I'm using the following code to load a form based on the name of the form: Dim myType As Type = Type.GetType("SysName.CallingForm") Dim myForm As Object = System.Activator.CreateInstance _ (myType) myForm.mdiparent = MainMDIForm myType.GetMethod("Show").Invoke(myForm, Nothing) ...more >>

I'm having a strange problem with a service I developed. After installing the service on the target machine, I'm trying to start it using the Services admin window. I get the "Windows is starting" status window, but it times out - even though the application's log file says that it did start. The se...more >>

Anyone knows how to add an Application.Idle handler in VB .Net Private WithEvents ?????????? As ???????? Public Sub IdleEvent(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Application.Idle Application.DoEvents() End Sub Thanks ...more >>

Hello I activate my vb6 application from vb.net .Now user want to be able to call vb.net form from vb6 exe How do I call vb.net from from vb6 source? Do I hit some perfomances issue? Can you show me an example of code ? Thanks Shell("c\folder\vb.exe", vbMaximizedFocus) ...more >>

I have been assiging a background color to a grid in design mode. The color name I have been using is Control. On my machine the Control color is a kind of light grey. Now I want to assign the color in code but the code does not recognize color.control. It only recognizes things like color.gr...more >>

I would like to control the appdomain that my application starts up in. Is there any way to change these initial settings (IE - Shadow copy assemblies) without calling another assembly first to load the application I really want to run in another AppDomain? Thanks! ...more >>

How can I tell if my program is already running in memory? Code is appreciated. Thanks ...more >>

Hi, I know there is an autodocument feature in C# which translates in-code comments and parameterinformation, etc... into xml documentation. Ideal stuff for documenting a framework. Does such a tool exist for vb.net as wel? i'd appreciate all help on this topic! Bonna ...more >>

Ok, ADO.NET is confusing the heck out of me. If I want to just do a Transact-SQL SELECT Statement to a SQL Server 2000 Database in Visual Basic, should I even use ADO Recordsets anymore. I was looking at the SQL Server Specific stuff: (SQLClient.SQLConnection, SQLClient.SQLCommand and SQLC...more >>

I have developed a program that sends a command through the serial port to our business system and then reads from the buffer looking for a number. Everything worked great on my WinXP system, but when I tried the program on the Win98 system it will be running on, I get the following error: ...more >>

I have an ASP.Net application that I have been developing on my local machine for some time now. At this time, I need to deploy it to a development server since it has now become a multi-developer project and we need to integrate SourceSafe with IIS to allow for the source control for it. I k...more >>

HI PLEASE HELP Im making a program, that makes a process (OCR process) so i reach to automate it in order to open a file ("c:\image.bmp") and then executes the ocr process ok.. it is working fine.. i just need to change that static route ("c:\image.bmp") for a parameter and generate a dll ...more >>

Hi, Been looking around for ages, but to no avail!! Has anyone any ideas on how to retreive the File Summary information, as shown on the File Properties / Summary tab. I have seen references to the iStream interface, but nothing specific. Thanks Terry C. ...more >>

Is there a way to get a collection of file system objects in a directory and filter on the file creation date? I have seen the DirectoryInfo.GetFileSystemInfos, and I know that it will take in a filter, but it appears that this filter is only for the name of the file. I want to avoid havin...more >>

Hi, I am trying to generate in XML the data structure of a SQL Server 2000 database. What I need is a means of programmatically generating a comprehensive XML representation of the data structure relationships and all. Is there a simple way of achieving this? Thanks,Sean...more >>

Hi, I've noticed a few bugs like with the datetime control with the checkbox, the checkbox doesn't not work properpy by code. Setting it to false sometimes does nothing. As well tab orders seem to change randomly with tab controls. If you have the same letter as a shortcut on a button it ...more >>

Does anyone know how to get a cash drawer to open using VB? I'm doing a Point of Sale program and figured this was the easiest way to figure it out. If you know just email me. Thanks!...more >>

I think I have found a memory leak using the DIR function and also using the System.IO.File.Exists. Create a new windows application, place a timer on the form, in the Timar1_Tick event put: If Dir("C:\SomeFile.txt") = "" then End If The "C:\SomeFile.txt" doesn't need to ex...more >>

Hi, I am using MSDN examples to help write a component using VB.NET. The sample code is written in C# which, on the whole is not giving me too difficulties when translating to VB. However, there are a couple of code snippets I don't quite know how to translate into VB. These are: st...more >>

Does anybody have a good VB coding standards documnet? I need to generate one and I am looking for examples. Thanks email: dschaertel@hotmail.com ...more >>

Hello, We have a vb.net application we are using for our field inspectors. We want to integrate a camera capturing tool into the application. Does anyone have any suggestions? The idea is that the camera is attached to the tablet (running windows 2k) on the tablet they can view and take pi...more >>

I am trying to convert a computers local time to Pacific time, I can get it back to UTC pretty easy but I actually want to convert whatever the local time is on the computer I want to calculate what it would currently be in Pacific time. Taking in account Daylight Savings Time Thanks, Ed,...more >>

Hi, I would like to change the behaviour of the datagrid when the user hits Enter. The usual behaviour is the cursor move down, but I want it to move right, and at the last column to move to the next row first column. I just don't capture the data grid key events, to change the way keys ar...more >>

Hello all - I have a form that has several checked list boxes. I want to maintain a static (Shared) array to make looping through them easier. I have tried several things unsuccessfully. I wanted to declare a the array like this: 'private shared foo() as checkedlistbox = {item, item, ...more >>

I have a multi-dimensional byte array, private someArray(,,) as byte and it's huge redim someArray(100,640,480,3) after populating the array, I write it to a text file to save it. (so I don't run out of memory). I will retrieve from the file later. What I do is use streamwriter.write...more >>

I load a bitmap using GDI+ now, I want to collect all the pixel values, (in RGB but without the A component) onto a color array, say... dim btmp1(,) as color is there a method that can help me collect the pixel values as quickly as possible (like one row at a time)? what about setting (or ch...more >>

I open a file with FileOpen in the main thread, and try to read from it and close in another thread. All filr operations in another thread fail with message "bad file name or number". But they work properly in the main thread. How can I work with files in different threads? ...more >>

I want to check for available physical memory at any one time. what is the best way to do so? is there a .net framework method that can do this? if not, then vb...? ...more >>

Hi, I am a little rusty with vb.net so, i hope anyone can help. I would like to know where i can get information on how to bind data to a datagrid programmatically and also bind and format the columns to reflect the data that is friendly to the users. for example, i have a dataset ready t...more >>

Can i package and deploy my project using VisualBasic .net Standard, or is it only the professional that will allow you to deploy? I have been searching for the past couple of days and can not find a thing. Thanks for your help Chris. ----== Posted via Newsfeed.Com - Unlimited-Unce...more >>

I am wanting to do drag and drop between labels. But I really want more of a swap. This is part of the GUI: http://www.ch010a0005.pwp.blueyonder.co.uk/extreme/dragdrop.jpg So if A was moved to B then B would then swap. Is this possible to do with Labels or is this to much to ask of v...more >>

Hi, I've bound some drop down lists to a dataset, but if the iexplorer window is resized the contents of the lists are lost? Why is this happening? AutoPostback is set to true. TAI Lionel...more >>

I have written a small procedure that opens a dialog that I pass it. Sub MyOpen(txtForm as string) Dim frm As Object Dim frmType As Type frmType = Type.GetType(txtForm) frm = Activator.CreateInstance(frmType) frmType.InvokeMember("ShowDialog", BindingFlags.InvokeMethod, Nothing, f...more >>

Greetings, I used article Q317109 (http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q317109) to solve the problem of Excel prcocess does not stop after close. The problem I faced with the solution provided is that between the export of data to Excel and destryoing of Excel's objects (...more >>

Im not a beginner in vb.net, but I never asked myself what is the difference between folowing lines of code: 1.)You add a object to an array/arraylist/collection (lets take arraylists) myArrayList.add(myobject) Question: what is the difference if you handle myobject form myArrayList like ...more >>

Dear friends My app load the startup form and all of its controls step by step and its indeed not nice. Do somebody know how to hide the form until the painting is finished? Regards Able ...more >>