Can anyone help me as how to put the DB conn in a single file/function which i can use across my entire prject(multiple forms and functions) so that i do not have to keep creating the DB connection again n again on each form and action.
how to put the DB conn in a single file/function which i can use across my entire prject(multiple forms and functions) so that i do not have to keep creating the DB connection again n again on each form and action?
How can I call individual parts of this function? I would like to call return Gallons and decPaintCostperRoom as individual entities with a single function.
Is there a way to write a single function that will control validating the input to any textbox? How to pass control of it.
E.g.: My second try was to: Dim CurrentTextBox As TextBox << Declare a global Write a function that uses the global textbox and takes in 2 parameters, one determining the length it has to validate and the second telling it what to do once the input is verified
Public Sub ConfirmInput(length As Integer, which As Integer) If (CurrentTextBox.TextLength < length) Then CurrentTextBox.BackColor = vbRed GoTo DONE ElseIf (CurrentTextBox.TextLength > length) Then CurrentTextBox.BackColor = vbRed [Code] .....
My first try was to pass a textBox parameter to the ConfirmInput function but I believe that's the same problem as above.
I'm facing a problem after installation any software setup that has a database in access(mdb file) How to I transfer file path in our connection string.
The error it has is that when one of the text boxes is changed the code changes all of them triggering every single function to activate. Is there a simpler solution other then recoding it from the start? also each different Private Sub is identical basically.
Public Class Form1 Private Sub K_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles K.TextChanged Dim T As Double[code]...
I know the code is very brute forced & sloppy but its the only way i really know how to do it.
i could write some code in a different file so that i could call it later...like in php you just include the file....my problem is that it is a database program i would like to separate the connection function or not a function(like public)so that i can call it to make my code readable...
I want to perform two hashing operations concurrently on a single file, without reading the file twice. Is there some way to share the FileStream between two synchronized hashing threads? For example:
Dim Stream As New IO.FileStream("...", IO.FileMode.Open) Dim HashA, HashB As Byte() Dim A = New System.Threading.Thread(Sub()
[code]....
Maybe some way of caching a stream? Trouble is, I don't want the entire file in memory at once (it could be many gigabytes in size) and I don't want the file read more than once, due to speed issues. I want the file cached only sufficiently to ensure that both threads can work.For example, suppose at some point in time, thread A had read 100k of the file, but thread B had only read 20k of the file. The portion of the file between 20k and 100k should be cached; but then progressively forgotten as thread B catches up. Then again, if thread B is too slow, we might still end up with hundreds of megabytes being cached.Maybe thread A should be made to wait while thread B catches up. Maybe the ReadByte() function of the stream should block for a while if one of the threads is too far behind?
I have this pretty simple application, it uses a webService to transfer data to my servers DataBase. Now it is very important for me to keep this application as one single file, and not having some XML files needed for it to work, but this is the case. I think the XML file holds the information to this webService, so without it the application crashes. Is there a way to get the application to work without this XML file, or a way to put the XML inside the exe archive?
I have an .exe file which is using a .dll file.I want to make an .exe file which will do the work. The reason I want to do this is to hide that dll file from the user.
extract a single file (WantedFile.xml) from a .ZIP file (THEBIGZipFile.zip) using native VB.NET Code?I think .NET FW 3.5 or 4.0 has "System.IO.Packaging.Package " which can be used? Not sure. Please advice.
Note: I will not be able to install or distribute any other DLLs like (ICSharp or VJ# or cant use process command to invoke winzip etc).
Say I have a code with 3 methods that do some pretty intensive work. Would executing these methods on 3 seperate threads be faster then executing them one after the other on a single core cpu? And what if it's a dual core or HT?
I am trying to make a list, separated by a comma, of entries from a single column in a SQL database. I have been spending the last several days searching for a way to do this, but every thing I found either didn't work, or wasn't exactly what I was looking for.
The query will pull all the email address that are not null. What I need to know is how to take the result of that query and make it look like this:
I use SqlParameters when executing database statements. I know that I can replace a single quote with two single quotes... but in the past SqlParameters took care of this for me. I have two projects.. in one, the SqlParameter does this and it handles single quotes fine, in another, it does not and I'm at a loss why (I even copied and pasted the code):
I have developed some software with no database. I want to create an .exe of my .Net project so I can give only the .exe file to users to use the software.
Unfortunately I don't know how to create an .exe of my project in .Net.
i got 3 text files with me. one has the emails another one has the hash.. i want to merge them both into a single file.[quote]first file contains : [URL]..second file contains hash which corrsponds to the password of the users in the text file 1 :which i have to merge like: [URL]..There is a trailing space at the beginning and end of each line in both the files. just a single space i got to remove that too..
I am trying to update a row or a single cell in ms access through vb.net. But when i update the text box named NRIC, say for example i want to update "s4522147B" to "tr4521856C" and mean while leaving the other fields the same.
But the thing is when i make the changes in nric.text (textbox), the dataset actually updates the whole column in the table instead of the selected textbox.
I want to combine two projects into one i.e. image and audio steganography with a single .sln file. How do I connect them? I'm using Visual Studio 2008.
In my contact manager program I have been storing information by reading and writing comma delimited files for each individual contact, and storing notes in a file for each note, and I'm wondering how I could go about shrinking them all into one file effectively. I have attempted using data entry tools in the visual studio toolbox and template class, though I have never quite figured out how to use them. What would be especially convenient is if I could store data as data type IOwner (a class I created) as opposed to strings.
I'd also need to figure out how to tell the program what to do when a file is opened (I've noticed in the properties how to associate a file type with the program though am not sure how to tell it what to do when it's opened).
Edit:
How about rephrasing the question: I have a class IContact with various properties some of them being lists of other class objects. I have a public list of IContact. Can I write Contacts as List(Of IContact) to a file as opposed to a bunch of strings?
Second part of the question: I have associated .cms files with my program. But if a user opens the file, what code should the program run through in an attempt to deal with the file? This file is going to contain data that the program needs to read, how do I tell it to read a file when the program is opened vicariously because the file was opened?
I'm trying to figure out how to create a single .dll file in VB.NET that will contain multiple custom controls. Basically I have a .dll / single VB.NET program that will include a custom control for a Button, a Label, and a Text Box. I've figured out how to make a single custom control, but I can't seem to get it to work if I have more than one in there. It just keeps using the one I had in there originally.
Having problems with this downloader. Its a single file downloader (the file location is in the code) and it only downloads the file as 0kb (it debugs fine). Also, i think my directory finder is not working, as i did it the simple way, because i dont know the environment code. (please note i have changed the website link, but the actual link works fine )
Imports System.Net Public Class Form1 Dim Directory As String
I'm using Visual Basic Professional 2010, I have two directories of XML files. The naming convention in directory one is a user's name, a six digit date and ending in ".xml_CREATE.xml". So, I perform some work on a file in directory two. During the course of that processing I discover that a file exists in directory one called "Mike" an unknown six digit date and ending with ".xml_CREATE.xml", so while I have no way to know the date, I know it exists and would look something like Mike030312.xml_CREATE.xml. So, now I want to load that file as an XElement that I will eventually incorporate into an XDocument, so I need to perform a Load similar to: myXMLFile = XElement.Load(My.Settings.XMLDir & "" & Mike030312.xml_CREATE.xml), However, since I don't know the date, I need to insert wildcards at that spot. How do I make that happen?
A VB.NET program needs to create a single PDF file from several PDF files.Is there a way to do this with a VB.NET or C# program?If not, is there a free add-on product that .NET can use to do it?
I am using vb 2010 and a windows form in my Web Browser project. In my favorites bar I need to be able to import my users favorites (that he may add) through a .txt file. I realize one way of doing this is creating multiple files stored in one master folder and reading the whole file of each which would contain the URL, but I would much rather have them all in one .txt file, but for that to happen i must read line by line from that file to import the favorites. Therefore, my question is how can I code my project to read through a .txt file line by line and return each line in possibly an array? "We are what we repeatedly do. Excellence, therefore, is not an act but a habit."
basically im looking to have two textboxs with 3 buttons
TextBox1.text contains the path to the new file and
TextBox2.text contains the path folder to subdirectories
i have everything i need working, haha i know not much, this is only my second day with vb.I just needed a button now to carry out the function of copying the file i tried using simple file copy but i had to specify a file output in that and it only gave me option to copy it to one directory.For instance
C:index.php TextBox1.text <- loaded in from button 1
C:www* TextBox2.text <- button 2 loading subdirs
now i need a button 3 that would carry out the function of copying textbox1.text to all subdirs in textbox2.text.i thought i would have been able to use simple copy as stated above with wildcard in my program but no joy