Can something like this be done? Say I have two buttons a Prepare and Calculate button. when the user hits Prepare, it looks to combo boxes, sees what is selected and displays apprpriate labels and text boxes and hides the ones not needed for example for btnPrepare_Click...... dim v...more >>

Hi Folks, Just a quickie, I am inserting some records (individually) into a SQL Server Table. I am wondering how can I detect primary key violations on this data which I am inserting into the table. My Insert code is as follows (VB.Net): Public Function InsertNewUser(ByVal _ConnString A...more >>

I have a form that has a left and right panel. In the left panel is a treeview. The right panel I want to change dynamically based on the type of node selected. What I'm doing is loading the treeview nodes through an XML file. As part of each node in the XML, I'm using an attribute that ind...more >>

I got the following code from Francesco Balena's site, for disposing of Com objects: Sub SetNothing(Of T)(ByRef obj As T) ' Dispose of the object if possible If obj IsNot Nothing AndAlso TypeOf obj Is IDisposable Then DirectCast(obj, IDis...more >>

Hello, How do I determine which item in a combo box the user selected? Say I have a combo box with All, Some, None and I want to write code for a button like this?... if combobox.userselected = "All" then (20*12) end if I was thinking it would be : if cboselected.items = All then ... ...more >>

as the title of question, I would like to export some properties of excel such as font size ,sheet name and so on into a table of database, especially the names defined in excel , which can respective a cell value or a cell . any helpl will be veryvery appriciated! -- marxi...more >>

Instead of Ctrl+Y redoing what's stored in 'future history', it REPLACES that information (which will then be forever lost) with a new command: delete current line. This shortcut is so ridiculous I actually contemplated that I must have accidentally changed it to this myself, but I don't see ho...more >>

On my Help/About screen, I'd like to display 1) The version number, as it appears in the Publish screen. 2) The version number of the Report Viewer control. How would I do this? Thanks Vayse ...more >>

In VB6 I would use the API "OutputDebugString" so I could view my internal workings using DBView.exe Is there something native in DotNet that can replace OutputDebugString so I can view whats happening inside of my code whike the exe is running? Lou ...more >>

When I send an email (basically a sms to a phone) from ms outlook it works fine. When I try to send it pragmatically I get an error stating that it can’t relay for <the email address> Try If Not strMailSv = "" Then If Not msgTo = "" Then ...more >>

For a long time now I've needed to convert files from one format to another in order to use them in a variety of applications for personal use. I love to read ebooks on my palm pilot for instance. I've found various applications on the web that do this. But currently I have to use up to like 5...more >>

I have a code that reads all the bytes (all of them into an array) of a file that is 457 kb and converts those byte values into hex and writes that data to the HDD as text. When I run the program its literally doing like 3-4 rounds a second (3-4 bytes a second). What is going on? I remember ...more >>

VB 2005 Express. I have an MDI app, and I have a child form loading in the Parent form. On the Child form I have a command button "Close". Upon click of that close, If MessageBox.Show("Are you sure you want to cancel?", _ "Cancel", _ ...more >>

Hi All, Let me present you with list of consultants currently available. Name / Job Title Summary Ramchandran/Java =B7 7+ years experience in the field of Software Development. =B7 Expertise in full Software Development Life Cycle (SDLC) =B7 Expertise in J2EE architecture and applicati...more >>

Are they possible? I am passing in a large array of Bytes, thus I don't want to use ByVal. Zytan ...more >>

Doesn't anyone display the version and revision number in their VB.NET application on the "about" screen or somewhere else? I need to know how to display that information also. Any help would be appreciated ...more >>

I have a program that is reading one of my mailboxes. It is polling the mailboxes ever 5 minutes to see if there is a message or not. Is this how Outlook does it (using Exchange as the server)? It doesn't seem to. When a message gets to Exchange, it seems to do some type of Push to Out...more >>

Hi , i'm looking for code/method to get process list AND order of these processes in task manager. For instance , in task manager ( or on the windows task bar ) you have 5 applications , i would like to recover the order of these applications ( 1 to 5 ) I fould process list in System...more >>

during a windows update i was notified about a visual studio sp1 of about 432mb, which allowed to download. during the installation process i was notified that it was not installed. when i rebooted my system, and loaded vs i did not see sp1 in help/about. if i try help/check for updates, it...more >>

I added textbox controls to a form when user selects amount to create from a combobox as follows: 'Load up the combobox Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim i As Integer For i = 1 To 10 ...more >>

Hello, I need to check if a textbox (of size = 1) contains a specific value (character). I could say something like If txt1.text.equals("X") or txt1.text.equals("Y")... then... Ideally, I would like to do something like Sql --If txt1.text In ("X", "Y", "Z") then... txt1.Text.Contain...more >>

Email Question: When I send an email (basically a sms to a phone) from ms outlook it works fine. When I try to send it pragmatically I get an error stating that it can’t relay for <the email address> Try If Not strMailSv = "" Then If Not msgTo = ""...more >>

I'm working in VS2003 VB.NET environment. I created a based class template (BasePage) and there is a new aspx win form (winform1.aspx) inheriting BasePage. In winform1.aspx I have added a new usercontrol uc1 and in uc1 I have a textbox and a save button (btn_Save). When I click the save b...more >>

Hi, Is it possible to read a file in reverse and only get the last 100 bytes in the file without reading the whole file from the begining? I have to get info from files that are in the last 100 bytes of the file and some of these files are 600Mb -1 GB in size. I am getting "outofMemory.." e...more >>

Hi all, as from object i need to read all byte from a file example c: \myphoto.jpg and recreate the file with another name to another directory c:\photo\recreatedphoto.jpg can someone write a small example to do it? thx a lot men :) ...more >>

As the title, I have a url, how can I check is it avalible any more? Thanks!!! ...more >>

Ok. Maybe I shouldnt post such basic questions here in such an advanced group but my high school programming teacher wont answer any questions outside of his curriculum :( My goal is create a program that will get feeded a url that links direcly to a file [ex. http://www.example.com/video.a...more >>