I made a custom file extension (.varia) and made the value notepad ++. Then I went into notepad++ and added it. Next I saved it as test.varia. But now I don't know how to make the program read it and store text inside of it.[code]
View 6 RepliesI built a custom class and collection for the class for an app that I'm creating. What would be the best way for me to store it so that it will be available on the next startup of the app? It's a pretty simple class with a few strings, etc.
View 12 RepliesI'm developing a "small" warehouse-management WebApplication for few users(5-10 parralel) but with a complex authorization system(checking if pages,menus,TabPanels, UserControls and even single controls are visible or enabled) and permanent and frequent access. Because i've only limited experiences with the ASP.Net MembershipProvider, i'm unsure what's the best approach for following goal:
I want to hold all users, roles and frequently used masterdata in the Cache(in a Dataset). Hence every readonly access should be faster and causes less traffic than always using the database. On updates,deletes and inserts i would update the cached dataset and also the database.
Can i use or extend the SqlMembershipProvider to achieve this goal and if possible how?
We use a custom collection derived from CollectionBase to store our Business objects
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I want to store additional information about a listview item using a custom class, but I can't seem to get it to work.I'm currently using this code to accomplish something similar using a listbox item.I just want to do the same thing with a listview.
Public Class myListboxItem
Public id As String
Public rootFolder As String[code]....
I forgot to add "Inherits ListViewItem" to my class.I'll update the code listed here to serve as an example for others.
I am coding a program that will allow the user to input 5 payrolls for Store 1, Store 2, and Store 3. The total of the 5 payrolls are then added together and shown in the respective Store's labels. A total label is also there to add up all the totals into one number. The numbers in the label must be in currency form. My problem is the numbers don't add correctly when I hit calculate. The first two numbers add together, but then after that the number just seems to subtract a random amount.
So far I have this --
Public Class Form1
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Close()
End Sub
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know how to create a custom file association ( a custom extension ) in VB .Net and how to open it on the application
View 1 RepliesWith VB.net, I'm coding a simple application to get more used to the new .Net format.
I'd like to save all the information to a 'new' database file. how to create a database on the fly, once that is done i'll be able to connect to it no problem, but actually creating the file is proving difficult to work/find out.
Also, with vb.net and the newly created custom file, how can it be made to automatically open that information with the program?
Is there a method in installation to associate the file type with the new program? How can i check when the program loads if a database file has been 'double-clicked' (rather than just running from the .exe of the program) and proceed to load the data?
EDIT1 - Extra InfoThe windows application has many different fields and content etc, then i need to save that to a file that could later be loaded by 'double clicking'. I assumed the easiest way would be to create a mini-database for each unique file
I'm trying to store all my files into one file. I have quote huge file but the file stops at 194,000 KB and it doesn't save beyond that but the problem I've built says that the file has been saved. I would like to know if there is a way to go beyond this limit? And for the file to just keep getting bigger.
View 3 Replieshow to store the .jpg, .bmp or .raw file into clipboard? here is the cope of VB code I need to make it work
Clipboard.SetImage(CType("C:asdf.jpg", System.Drawing.Image))
I am using an .ini file to store my settings, so they are editable. But the thing is, it wont redirect? I had it working some minutes ago, but now, it just gives me a white page.. It didnt do that some minutes ago Here is my whole code, as it would take time to split it all that has with .Ini file to do.
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i know that integer is a variable to store whole numbers and that a string is a varialbe used to store any text, but what variable type would you use to store a number that has decimals?
View 7 RepliesI had 7 picture box which is for creating my digital clock.At first, i put my 7 image at the desktop and store my image as array to call out when the program is running.So my image path is
Public myImg(7) As Bitmap
myImg(0) = New Bitmap("C:UsersDesktop�.png")
Then after i install the program at others desktop.The program cant be run.I think is cause by the file path.Which file path should i put for the image to enable program can run at any desktop.
I need a piece of code that will take info from a textbox and store it as a txt.file. Also how would I go about taking info from a combobox?
View 6 RepliesI have Stored PDF file in a database i want to display this PDF file in my VB.net Window Form
How i display PDF in my Form..
How to store Mp3 Files in Database and display it into a listbox? So that I can load the files and display it into a listbox if I start my MP3 Player.
View 3 Replieshow to store pdf file in data base using visual basic?
View 2 RepliesHow can i store pictures in a .avi file with visual basic 2008 and play it with Windows Media Player or other players
View 4 RepliesI am building an application with an Access database, using Visual Basic 2010 and am not sure where the best place to store that database is. I am looking forward to creating an install file and want to make sure that the database is in the right place.
View 1 RepliesI have a config.txt file that has the following lines in it.
[MUSIC_PATH]=X:MultimediaAudio
[MOVIES_PATH]=X:MultimediaVideosMovies
[SHOWS_PATH]=X:MultimediaVideosTV Shows
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I have a data in the below format
number = 4
length = 7
force = 100
Now I want to read it in a format that it will check the string 'number' or 'length' or 'force' or whatever and stores this data into specified arrays or listboxes. Like a force() array or listboxforce.items()
I want to store images like finger prints and data in a single file so i can send that file via mail.
View 1 RepliesAs things are now, I need my program to store x number of file locations. My first approach was to use an array, however as i do now know how many files there will be, i am forced to use redim preserve. That is not very effective and I have therefore started using a StringCollection.
or is there some smart way to store these paths, that I have overlooked?
I have a list of files and all of them have a different size. I need to upload them in chunks of 250Kb (or less if it's a small file or if it's the last chunk of a file).What I would like to do is read a bunch of chunks (lets say 15 chunks), in a separate thread, and then store the chunks of data in some sort of list. This list must be available to other threads.
An upload thread (I don't need help with uploading itself) takes the first chunk from the list and marks the chunk as "currently being uploaded". When the chunk has been fully uploaded, then the chunk is removed from the list. A second upload thread takes the next available chunk in the list that has not been set to "currently being uploaded", etc. There are a total of 10 upload threads working at the same time.
As soon as a chunk is removed from the list, then a new chunk of data is read and added to the list.Does anybody know what kind of list I need or how I should do something like this? I don't expect people to write out the code for me, but I have no idea where to start with this.
I have developed a vb.net dll (.net 3.5) which does the following :
- I have data of several stock market companies.
- They are stored in several folders under a main folder.
- These files are random access files.
- There can be around 4000 files in total for example.
I wrote a program which reads a current csv file and stores contents in array. Then I store name and path of companies in folders (which I was talking about). Then I match one company from csv (stored in array) to companies in user's folder (again reading from array). If found I insert data in the file (random access file). This whole process takes for eg. 2 min my system. A similar program was written years ago by someone in powerbasic which takes slight less time if run one but if run for multiple csv files it takes only a few seconds doing the same thing for other files. When I do the same thing (by writing code to .net dll) and making a dummy app to run it, no matter how many times I run it takes same time. And is way slower than the earlier one (PB) one I was talking about. But if I paste the same code in my win (.net) app and not use .net dll then it runs a bit faster.
I need to show status so if I pass my form's label reference to .net dll and it updates it does that slow down process a lot. As I mentioned I am trying to process the files and it takes longer in .net. What should I do to get best performance? Unfortunately due to unexplainable reasons I cannot change the format or use a db. The files which I am reading/writing (random access files) are use by other products so I have to stick to that format. What I am doing is storing the location of those files in array so that I don't have to search folder again. that is not taking time. But opening reading and writing files is time consuming if I am doing it for few thousand of them. A similar program in powerbasic (developed years ago) runs fast. Running code thru .net dll is slower than running it thru program. Why?
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What is that made in? And how do they store a file inside the calculators executable ?
I have a .txt file i want to read that has states by abbreviation and states by name. In that text file some are territories and some are states.
I want to read from that file and put the abbreviations into one structure array and the states into another structure array.
I then want to lookup up the states by abbreviation or state name. The lookup will simply be selected by a radio button which will flag either the states full name array, or the abbreviation array.
all I have is the structures created:
Public Class Form1
Structure Lookup
Dim Abbreviation As String
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How can I read from the .txt file and store into an array
I have a connection string in my database which I read throughout my VB .Net application. I have another string which is NOT a connection string though. It instead has information about a domain on LDAP. So LDAP string just needs to be stored in the web.config as a string, and also to be retrieved as a string.
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I have a question (suppose to be simple). The question related to reading text file which is in the below format.
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What I want here is to store the first data column in the file to be stored in AreasString and 2nd column in Level, 3rd in Importance and so on untill the end of the data. In addition, How can I check the type of data? For example, if I want to say: If 10.25 is double then msgbox ("it is double") else msgbox ("it is integer")
I'm working on a project right now that basically prints a string to the field that has focus in internet explorer and there's quite a bit of user specified information that needs to load when the vb program loads. Should I use a text file to store and retrieve the settings or a database? I'm a new programmer and I don't really have a clear idea on when I should use a text file compared to a database or the registry to store info. Also, if I use a database like access 2007 for example, wouldn't an end user run into an exception if they don't have that software installed on their comp? Is there a universal database format? I've linked some screenshots of the prog if you want to get an idea of how much info I need to store.
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