I have a listbox and I am drawing my items. For some reason the selected item doesn't show a selection.... this seems to happen even if I tell it to draw focus rectangle. What should I do to so a selected item? Thanks, Shane ...more >>

I have two mixed questions, sorry for the unclear subject line. I downloaded the Visual Basic Resource Kit from MS but I can't get it to work. I have WinXP Home so I don't know if that's part of the problem. If it is, how in the world do I use the kit to learn? (How do I do the tutorials, etc....more >>

Hi i'm wondering if anyone can tell me where i'm going wrong. i have created a class library that allows me to access an oracle database. i have it working in conjunction with a desktop application. however when i use it with a web application i continue to get error message saying that "Could n...more >>

Is it possible to have default and cancel buttons on a UserControl ? ...more >>

hi there, how is vb.net database programming easier compare to php-mysql combination? i'm having trouble understanding how vb.net work compare to php-mysql database accessing. can anyone shed me light for easier understanding? thanks. regards/ jerome ...more >>

When I click a button I don't want the click event to fire. Is this possible? In fact, what I would really like is to be able to intercept the click event, perform some action, and then prevent the click from passing through to the button. Any help or suggestions much appreciated. Charle...more >>

I've been battling with this stupid problem for hours now. WebApp: Trying to do a simple transformation using XSLT to a Web Page, but it just failes without an error message ( In other words, it bums out with a general exeption with no message ). It creates the Ouput.html, but errors and...more >>

Can someone please explain this to me. I am not understanding why this works the way it does. The commented lines are the problems Dim oleEmp as OleDbCommand Dim myFinds as OleDataReader Dim strSearch as String Dim strFound as String strSearch = "select * from employee where [first name]...more >>

I'm writing an app in VB.NET that provides a user-interface to computer simulation model that runs as a console process. I would like to have the console output redirected to my VB.NET program and I've done so with the attached code. The problem is, redirecting its output slows down the code s...more >>

Hi all, Would someone be able to tell me the most 'graceful' way of removing unwanted rows from a dataset based on a condition prior to update? OR, resetting the rows all to unchanged after they are initally added to the recordset. I create a dataset, which begins empty after the initial .F...more >>

I have installed an application that I created and everything works except the Crystal Reports components... I check, they are in the Setup Files, but it seems like the dependancies are not all there... What can I do to force these dependancies to install? ...more >>

Is this language missing the functionality of a C/C++ 'continue' statement? For example: While NOT isEof() If condition ' a C or C++ continue would work here ' but we are forced to use a GoTo GoTo nxt End If ... more statements here ... nxt: End While You CAN rewri...more >>

Does anyone have any samples or references to get me started with WMI for collecting SNMP information? Any help is appreciated. Thanks, Dan...more >>

Hello, How can I create an instance using a System.Type object? Thanks Simon ...more >>

Hello all, I have been able to use a Javascript alert box in my vb.net web application, for example: Dim msg As String = "Hello, world." Dim alertScript As String = "<script language=JavaScript runat=server>" alertScript &= "alert('" & msg & "');" alertScript &= "</script>" RegisterClie...more >>

We are currently in a dead end with a circular reference issue using vb.net, and are hoping someone might help us resolve it. Idea... We have frmmain calling frmperson (dim f as new frmperson) in search (no record) mode. When the search is executed, frmperson calls frmsearchresult (dim f a...more >>

Look my prog. I have combobox where is have all tables names of access file. The user select one table and the content is show in datagrid. The user can add, erase or modify some record or row. Until now is ok but went I want to update access file, VB send me error. Some body can help me ...more >>

Hi Is it possible to change the type of data a column holds in DataTable at runtime? For example, suppose that the table column originally holds Strings, can we, at runtime, change it to Integers? I'm also interested in changing the date/time that may be held in a column. That is, if the da...more >>

Hi, What is the best way to release all resources holded by the Timer (myTimer from class System.Timers.Timer)? Is it: 1- myTimer.dispose 2- myTimer.enabled = false 3- myTimer.close I want to have the timer set to nothing so I can recreate a new one, I want to do this in a second ste...more >>

Is this the default and expected behavior for vb.net? 'C' and 'C++' used to skip b() if a() was not true, because there was no way the IF expression would ever be true. For example, if you did something like: If (NOT atEOF()) AND dataValueOK() Then ' process valid data here ELSE E...more >>

I have an application that I've never had problems debugging in the past. Today, I noticed that my code didn't stop at a particular breakpoint (and yes, I know that the function executed). So I set the breakpoint earlier in the program, and it stopped there! So then I started to step through ...more >>

http://lab.msdn.microsoft.com/ProductFeedback/viewfeedback.aspx?feedbackid=1fe1f257-df20-4700-ac92-c2a2e862c4d7 http://lab.msdn.microsoft.com/ProductFeedback/viewfeedback.aspx?feedbackid=d9482d01-ec71-44ba-9d10-34167ec9d78e http://lab.msdn.microsoft.com/ProductFeedback/viewfeedback.aspx?feedbackid...more >>

Hello, I currently have Visual Basic .NET 2003 Standard Edition. I would like to develop a standard exe which should use the Winsock Control for VB.NET. I found some tutorials about it, started to work, and then found out I couldn't find the winsock control at all. Is it there by default and a...more >>

Hello, I have 2 classes that work great as a windows app to retrieve and process data from an Oracle9i db. When I implement them in a Service program running as Local System, it fails on the .open. I am using OLEDB for Oracle 9.2.0.4. I have verified the Oracle Client install, Local Sys' path...more >>

Hello All! I was wondering how I can go about saving the last string entered into a textbox. I would like to save username or pwd info in textboxes in my forms so that users don't have to continually type them! Thanks! Luis ...more >>

I have a datagrid that I bind to a dataset with two tables. Those two tables have a relationship created, so the datagrid now gives me an option to expand the row, click on the relationship name and view the details. I want to know if it is possible to have the datagrid display those det...more >>

Hi, I have an MDI parent form with an MDI child form. On the MDI child form I have a button which will eventually open a new form. How can I open this new form from within the child form and make the new form an MDI child form of my MDI parent form. I hope this makes sense? Many Thanks ...more >>

Okay, after spending the past 4 1/2 hours trying to figure this out I am getting some answers but I am also getting very frustrated. And again, if this is the wrong forum to post to I apologize. Why can I not use Crystal Reports to show data from a simple dataset? The problem I have is that...more >>

http://www.wizkil-webs.net/NET/DotNET_Code_Samples.htm...more >>

I beleive it is because I have some projects in more than one solution that I develope the following type of errors. Can anyone tell me how to avoid this or what to do when it happens? Thanks A failure occurred while attempting to start the compilation. Warning: The dependency 'CsLibr...more >>

Hi, I know there are a lot of postings out there concerning this subject already, but so far I have not discovered anything that meets my specific needs. Everything I have found populates the combobox column with values from a database. I need to be able to manually set these values in my c...more >>

How to determine if another instance of the application is running so that ir doesn't run multiple instances? Thanks ...more >>

How would I post data from a listbox that allows multiple selections? How do you join the name/value pairs for the posted data? And for extra credit: Where is a page posting to when there is no "action" in the form tag? It just says '<form method=post>'. I didn't think you could do that, but t...more >>

I know datasets have been beaten to death in here, I have what is hopefully a simple question about the integrity of a dataset when used in an application. Scenario: User A and User B are updating data in a SQL database via an application that utilizes a dataset, dataadapter and datagrid. ...more >>

Hi Suppose I have a For Each loop, for example, For Each x As DataRow In drMyData ' Do stuff - calculation 1 ' Do more stuff - calculation 2 ' and even more stuff - calculation 3 Next If after completing calculation 1, I discover that there is no point doing calculations 2 and 3, how d...more >>

How do you format strings? i.e. In VB6: Format("AB34567", "@@@@@-@@") = "AB345-67" In .Net: ???????? ...more >>

Hello All! I have a long string that I need to make sense out of. I have the documentation about what info is between which characters, I just need to somehow parse each 94 character string into it's own section and from there be able to identify what info is in positions 8-11 or 12-24 etc... ...more >>

without using SQLDMO is there another way, i've used the SQLDMO way but have had a few issues with it. is there another way? Cheers, Craig ...more >>

Hello, I created a DTS package VB6 script with DTS from Sql Server 2000. In a vb.net project I add a reference to Microsoft DTSpackage object library and copy the code from the DTS script to a module in the vb.net project. The following lines of code are a few of the lines with syntax ...more >>

Okay, I am totally green to Crystal Reports, however I do have the general concept of how the reports work. I have a dataset being filled by a parametized data adapter, however when I run the call to open the Crystal Report viewer, I have a dialog box appear that wants me to logon to the datab...more >>

I am converting an old application that was printing directly to a specialized printer device (i.e. a special label printer). It was doing this by opening a file with the file path of 'LPT1:' and then using PRINT # to print directly to the printer device. Obviously, this is not going to work u...more >>

Hello, I created an array of files in a directory by doing a: Dim FileArray As String() = IO.Directory.GetFiles(QueueSource, "*.Q") My question is: How can I sort this array on the create-date of the files? Best regards, Jurgen Oerlemans ...more >>

I am new to GDI+.I am drawing a string on the Win form using GDI+. My string content is long and it does not have any "vbcrlf". The whole string is displayed in a single line and is getting truncated. Can anyone tell me how to take the win form bounds and display the long content on multip...more >>

I have a vb6 application that uses DAO and access database. I would like to create a upgrade to this product that does the following if possible: I want to have an application that will run both locally on a LAN/WAN/VPN and an application that runs across the internet like a webpage. If I p...more >>

Hi. When I send a myprintdocument.print a plain looking Printing status dialog is displayed on the screen. I have created a Label Printing program for our warehouse where there might be 200 or more 6x4 inch labels printed in one go. Each label is a page, so I have my own "status" I want to ...more >>

?????????????????????????????????????????????????????????????????????????= ?????????????????????????????????????????????????????????????????????????= ?????????????????????????????????????????????????????????????????????????= ????????????????????????????????????????????????????????????????????????...more >>

Hello, I have added a new row to a dataset as follows: MyMasterTable.Columns.Add("Total") Even though I convert it's value to decimal using ctype, it is not displayed using the £ symbol in my bound grid. I have the format of the specified column set to "c2" in the grid also. Eve...more >>

For my ImageProcessing Application i need to find whether an Image is Color or B/W through code for GrayScale automation purpose, Iam using vb.net and photoshop for developing the application. Image Format is PNG Can any one help in this regard. Thanks, Chellapandian.S...more >>

Hi, I need help with datalist and linkbutton. I need a LinkButton to be visible in datalist only on the condition when datafield "is_measure_customchecklist" in a db table set to true. Here is the code (in parts): <asp:DataList id="dtl1" runat="server" DataKeyField="program_id" OnItemC...more >>