I'm writing a piece of video software, sort of like a webcam, that's meant to show a preview on the screen from any WDM capable cam. I want to give the user RGB sliders, and process each frame by running it through a color matrix before it's displayed on the screen. So far I've succesfully...more >>

I'm a very noobie to VB.NET, just went through the Microsoft Intro class. I'm trying to write a simple app that connects to a remote PC and makes a modification to hklm\software\microsoft\windows nt\currentversion\winlogon However, it always gets a "System.UnauthorizedAccessException" "Can...more >>

Does anyone have any code for floating a textbox or combo over a cell in ListView to simulate a cell edit function? Thanks -Jerry ...more >>

I all of a sudden lost my abilty to compile using VBC.EXE. what are the required files to use this handy command line tool. Thanks Paul ...more >>

I'm new at ASP and I'm trying to query an MS SQL database (Northwind). I want the page to be setup with a textbox where the user inputs a list of comma separated numbers and the query would be something like: select * from categories where categoryid in ('1','2','3','4','5') and the resul...more >>

All, I have an image (bitmap) that I want to change all of the blue pixels to red, for example. Is this possible to do? Thanks in advance! Dave Wurtz ...more >>

I have a list of pc names that I need to go out and pull information from. If they are all online, great! But when a PC is turned off (not online), the program hangs for a good 40 seconds before moving on. Is there a way for me to quickly see if a host is online or not? I'm hoping for someth...more >>

Hello all, Im stumpped. I have a small app i wrote in VB.NET which takes in a file name, and a bunch of other params, runs the file with the params, and then exits. At the end of the program, it can optionally echo back all the params it received in a msgbox. When the app is run from a co...more >>

I am trying to create graphics with GDI+ that include transparency. However, the transparency never seems to show up, even though my colors have an alpha value of 0. How can I generate a graphic that is completely transparent in certain areas (so that the web page background shows through)? I ...more >>

I am trying to upgrade an old VB 6 project to .Net. One of the things this application has is a series of 6 tabs in a tabcontrol...BUT the tabs themselves arent visible when you run the application...instead the only way to go from one tab to the next is programatically. I have looked throug...more >>

Hi, I have a problem. I am trying to connect to a port so that I can send inforamtion through that port to something else. I thought sockets was the way to go but I don't know how to accomplish this task. Thanks Brian ...more >>

I have a collection of objects that I am trying to display in a Windows Forms Datagrid. I have had problems doing this before, so the first time around I went and did a Grid.TableStyles.Clear before naming my collection as the DataSource. In this scenario, the collection's members come up ...more >>

Hi all. I have a datagrid that has several columns including the Primary Key as the first column. When I add records to the grid the Primary Key column show "Null". This would not be a problem, but I want my users to be able to delete the column right away if they made a mistake with the en...more >>

as a learner, I made many mistakes in developing classlib and com component from a number of failed.dotnet projects. Now I end up severely cluttered registry of useless entries. I wonder if there is a project out there that I can use to clean up based of application ID like Someclass.* ...more >>

Hi, I have written a program that reads certain rows from a table in a local JET database file. I use SQL strings to select the rows that I want to read. Everything works fine on my development computer and all the SQL strings in the program return the desired rows from the database. but wh...more >>

I have the following System.Text.RegularExpressions.Regex that is supposed to remove this predefined list of garbage characters from contact names that come in on import files : Dim _dropContactGarbage As New Regex( _ "([" & Chr(0) & "-" & Chr(31) & "]+)|" & _ "([" & Chr(33) ...more >>

I have create a simple module and a couple forms. I have it set to run the module when the application starts. Several variables are set and then a form object is instantiated and displayed. The problem is that the application doesnt pause when the form displays...instead it simply quits ...more >>

ControlRichTextBox1.SelectedText = String.Format("{0} {1}", strExt, x.szTypeName) & vbCrLf Three questions: 1) How can I insert a tab between {0} and (1} so the richtextbox tabs x.szTypeName into a nice column? 2) How can I insert spaces so as to line up x.szTypeName into a nice col...more >>

I have a situation where I am filling two datasets and I need to print out the names that appear in both datasets. I initially converted them to dataviews, sorted on last name and performed a dataview.find on the view. This indeed found the people that appeared in the two seperate databases ...more >>

I have data stored in an array in this format: Str(0) = "AUG" Str(1) = "10" Str(2) = "13:44:38" (24 Clock) I need to re-assemble this into a valid date variable. What is the best algorythm to do this? Right now I'm converting AUG to an 8 and then 10 to a day and assuming that the year is...more >>

Hi I have a list of orders which currently Dispalyed on a Datagrid. Now, I want to add functionality to the user of selecting one or more orders. How do I enable choosing one or more records ? ...more >>

I've some problems while merging a string retrieved from a stream and re-built with the encoding. To be short. The first time string will be concatenated, all works fine, from the second time, it get only the first string ... the second part won't never added, and I really don't understand the...more >>

I am working with Distributed Components with VB.NET for the first time (pretty much), and am having the following problem. My components have been added and are visible in component services manager. They have also been added to the GAC. On seeking to set a reference to these components on...more >>

The code is below but I'm 99.9% sure that the code is okay and that maybe the schema has become corrupt somehow and im not sure how to fix it? Private Function LoadXMLSchema() 'Dim fileName As String = "C:\Documents and Settings\marc.mcguckian\My Documents\Visual Studio Projects\M...more >>

I know that this probably isn't the best place to post this but I already posted it in the exchange.devolopment group, and have not gotten any responces, so I thought that I would post it here. I am having trouble accessing exchange via a WEBDav SEARCH query. I am getting the OWA Frameset p...more >>

I have a very simple app that has one form (form1) and on the form is a progressbar (progressbar1). My issue is when the app runs, the progress bar beging updating before the complete form is loaded (i.e. I see the progress bar fillin in, and the title bar of the form, but the rest of the for...more >>

Hi! I am designing an application, and I need some pointers. I have a database that has 5 tables: a table "Items" and 4 other table that has relationship to "Item". I have to retreive all the records, and browse through it. I know how to populate a dataset with all the records, but what I ne...more >>

Sorry for another query, but I'm have trouble handling a simple modal form. The form (Form2) has only one textbox and two labels on it and I can show it modally by including the following code in a button click event: Private Sub Button1_Click(ByVal....) Dim testDialog as New Form2 test...more >>

Just making sure I'm not missing the boat here, but are there any special routines for doing currency math (fixed precision stuff) in .NET? The wonderful problems of doing math on decimals tend to shine when writing accounting software :-) How are others dealing with this? -- - Mitche...more >>

Come on someone must have experience of writing code in .NET to encrypt the content of a simgle XML File Element. The code I've found on the web is rubbish. This is the final and very last thing I am doing with this application so please contribute as much you can and I promise I'll buy you a...more >>

hi, how can i copy code of event of usercontrol in form on which it is placed automatically. whenever control is dragged to the form. ...more >>

I have a RadioButton which executes some code on its MouseDown event. I would like to use the same RadioButton's KeyPress event to trigger its own MouseDown event when the Enter Key is pressed. I naively thought the following would work: Private Sub RadioButton7_KeyPress(ByVal sender As Ob...more >>

Hi, I have to process a large data loading in my form. In order to give a feedback on the loading status, I'd like to display a progressbar in a popup, in the middle of the screen. How can I do that, as the progressbar is not in the same form as my data structures? Thx ...more >>

Dear members, I'am thinking about the "best" way to connect to my sql-server via ADO.Net (if there is a best way). My application uses the sql-server very intensively. At the moment every database-operation opens a connection, executes and then closes the connection. Another way would be...more >>

Hi, I have a datagrid which contains a combobox column bound to a datatable(I'm using VS2003 but it's a custom control). For each of the combobox I would like to achieve the same behaviour as for the font selector in word, that is the most recent chosen fonts are added to the top of the list. ...more >>

Hello you all, I want to store all kind of files (pdf, doc, xls, txt) in a database. This is no problem. The real problem is opening the files from within a .Net application. I tried several ways to do it: 1. Creating an object of e.g. word to open a document. 2. Taking care of the proble...more >>

Dear all, is it possible to open .NET shell programmatically? Thanks, Boni ...more >>

Please Help Me.. Is there anyone who knows how i can make a Custom WebControl Textbox, which can take my native Language (Farsi) on a webPage. I can do that very easily on a windows Form, but how can i do that on a Webpage. On Windows.... InputLanguage.CurrentInputLanguage ...more >>

Hi all, In my VB windows application, I have created a User Control that contains a few buttons and a text box. This control is then placed on several forms. What I would like to do is capture the click event of each specific button within the control at the form level, but I am not sure how...more >>

How would you guys handle this? We have an app that needs to keep an open connection to a SQL 2000 Server, (no it cant be disconnected because of what we are doing uses it so frequently, its a waste to constantly connect and disconnect every other second littearly)... but we have some systems ...more >>

Hi I am looking for sample code to print an image file from VB code image can be .jpg, .bmp etc. Thank you in advance, Shmuel Shulman ...more >>

How to get text box handle from an external application? I mean textbox is not in my form(s). TIA for your reply -- Saber S. http://maghalat.com ...more >>