I have distributed a simple VB 2005 application that generally runs just fine without any installation: the user just inserts the CD and it starts via autorun.inf. The rare problem the users have is if they do not have .Net Framework 2 installed. I want to catch this error in my application, and display an appropriate message. I also want to test this on my own computer (which of course has the Framework installed). So my questions are
1. Should I be using a try-catch-end try in the form load sub, or somewhere else? and
2. How can I test this on my own computer without un-installing the Framwork? If I can raise an error while debugging, what error number should I raise?
My application required .NET Framework 2.0.Currently, if it is not installed the user recieves the following error:The application failed to initialize properly (0xc0000135)'.It becomes extremely tiresome repeating to users that this is because the framework isn't installed. Is there some way to check if .NET framework 2.0 is installed before running, or in some way change this cryptic message so the user knows immediately
Is there a way to check if the necessary version of .NET framework has installed and if it has not installed to display a custom message explaining the user what is the problem and how to download the required version of .NET framework in order to make the application work?
The Enable Application Framework Check Box seems pretty well defined in a number oprevious postings, but leaves one question in my mind. The default is unchecked and the sub-topic Check boxes are:
Enable XP Visual Styles - - Checked
Make Single Instance Appllication - - Not Checked
Save My.Settings On Shutdown - -Checked
There are also 3 Combo Boxes:
Authentication Mode - - "Windows"
Shutdown Mode - - "When startup form closes"
Splash Screen - - (None)
When I un check the Enable Application Framework Check Box all items under it are grayed out. However, if I have changed one of the Comb Boxes my selection is also grayed out...My question is, have I lost the use of those function: Specifically I am mos interested in starting my application from a Sub Main and closing the application when all forms close.My underlying question is . . . are the greyed out selections still valid?
I'm developing an application with visual studio 2008 and compact framework 3.5 who needs to tell users about the compact framework version. If the user don't have the version specified in the application it sends a message but windows check the version before the application runs and send error message. How can i check the version before windows in vb without compact framework?
I am making a little Diagnostic Test app to check that certain folders and files exist.I would also like to list some system specs, i have almost all the ones i need except the currently installed framework version.
I have search the My.Computer libraries and in the help but cannot get the framework version to display in a listbox.How to get the framework version into a string?
Is there a bootstrap program we can download somewhere to bring in the framework 2.0 on machines where we are installing a vb.net 2005 app using the setup deployment project as was done with .net 2003 and framework 1.1?
i use VS 2005 ,so it use ,net framework 2.0 ,so if i look to ,net framework that i have in my computer i see 1.0 1.1 2.0 3.0 and 3.5 so my question is is VS 2005 automatically use the latest version of framework in my pc or i should do it manually ,and if manually how i do it?
I am work on VB.net 2003 Framework 1.1 for last 3.5 years in windows Application.We are currently migrating to VB.net 2008 framework 3.5, but i don't know about the features which related to ADO.net and which is important to performance. I know linq to SQL but our architecture is made in .net 2003 so we should follow this.Any features which is very important to enhance the performance?
I am a one man dev shop and need some outside opinions on how to approach this project.
I need to create a "post office" program that will send html emails thru the system.net.mail framework.
For each job submitted to the postoffice the app would need to read a user created html email string from the database, read a string of email addresses to send to and send out the emails based on a set processing time.
The first step would be to parse out the email addresses to find out how many emails it needs to send out and determine how many it would need to send per minute to complete the job in 20 minutes tops. I.e. if 1000 email addresses are submitted per job it would determine that it needs to send 50 emails per minute to complete the job.
The part I am stuck on is how I should queue the emails. If the app determines it needs to send 50 a minute should I only load up the first 50 on a timer event then get the next 50 queued up for the next timer tick? Or would it be better to load up all 1000 in a loop and build in some kind of wait time after it sends the first 50?
When filling controls on a form, I want to check the DB value of a Field, if it Yes one RB is set to checked, if it is No the other one is set. I know I have doen this before but can't remeber how or find a sample.
vb.net If Not dsSearch.Tables(0).Rows(dbCursor).Item(12) Is DBNull.Value Then If dsSearch.Tables(0).Rows(dbCursor).Item(12) Is "Yes" Then Me.rbtActive.Checked = CBool(CheckState.Checked)
I need to check for a registry cubkey I know how to check for an empty value but not if the subkey is missing In particluar this key
[code]...
here is code that i have for checking an empty registry value for instance a registry value named run. So if the key RUN has no value it returns true on the checkbox. Im not sure how to modify this code to check for an entire subkey as there is other subkeys where the one above is contained.
I am using VS 2005 Professional and writing a guitar tuner app with visual basic. I have a 6 wav files that play in button click events using the My.Computer.Audio.Play() method. I need to animate a picture box meter while a wav file is playing. I have searched in the library, but I can't find any relevant info for checking if a sound is playing for vb. Is there a way I can check to see if the wav file is playing?
I am working on my project as I am trying to create a boolean which I want to check the matched string using with the html tags whether if the strings is matched then display the messageboxes.
Here's the
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Try 'Address of URL
[code]....
What I am trying to do: I want to check the strings in the php page using with the htmltagsstrings and check if the strings is matched or not. If the strings is matched, display the messagebox that says "I am going to ban you", otherwise if it not matched then display the messagebox that says "Ok, let get some details".
I need to check to see what version of windows is running. How do I do this from VB .NET 2005? and how comprehensive can I get... can I also check for Vista and Windows 7?
I'm working on my listview to extract the strings from my php source. I want to check for each array in my listview when i finds the matches of html tags "<span id=""mystrings2"">Enabled", then tick for each checkbox in the listview when the matches are found.
i want to check if the computer is in sleep mode or not...Suppose my project is in normal state..I change the state to sleep mode,I want that now when the computer wakes from sleep mode,I want that my project is in minimized state..How to check dat?
I have searched on the google,But didnt find anything...
I am importing alot of data from a text file into an access database with the code below. (From a Comma delimited text file) The problem is that I do not want to import duplicate records. I have the "IDNr" column in my access database set to "not allow duplicates" and need my code to check if there is already a record in the database before trying to import the data. Otherwise it will just give me an error or not import the rest of the data. I could do to make sure that there are no duplicates for the IDNr column?
Is there any way that I can use to check the datatype of an object??What I want to check is like below (yes, below will not work. Its just a scratch logic).
example:If TypeOf(objPasser) = Integer Then ..... ElseIf
I am working on my project to connect to a site. As I have created a boolean to check in the mysql database whether if the username and password is true or false.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click If Textbox1.Text = Nothing Then
i need to send mail after taking screenshot. If i clicked the mail button first should check whether the file exist or not. Find the code below and tell me how to verify it.
Private Sub SendEmail_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SendEmail.Click Dim objOutlook As Object
I have two list boxes and I need to compare them to check if they are the same. One will be populated with number I set and the other will be populated when the user clicks on certain buttons. But how would I go about comparing the numbers the user enters with the set numbers? For example if the first list was 3241 and the user enters 3241 how could I check that they were the same?
