I have a listbox (ListBox5) and what i want to happen is when, and only when, a USB mass storage device is inserted a list of the files will appear on the listbox - and then when your press the button marked "Remove File" it will delete the selected file off the USB
View 5 Replieshow to read files from an USB mass storage device. I have found plenty of posts regarding drive letter detecting and reading the files. It's OK, but what about a device, where no drive letter is assigned - e.g. my mobile phone is visible under "My Computer" as "Mobile Device". The same situation it with my MP3 player. It's visible under "My Computer" as "Sansa device". Please, could anybody help me? I need to enumerate USB devices, identify, which ones have a file system and finally, I need to read/write a file to the file system.
View 2 RepliesI'm looking for a way to detect when a new USB mass storage device is inserted in one of the pc's USB ports... I need to get it's drive letter and check for the existence of a particular file.
View 39 RepliesI have a system that detects USB mass storage devices. I have a "list of items" listbox (ListBox3) and a list of USB's (Listbox4) When Button4 is pressed it will transfer all files in listbox3 onto the mass storage device selected in listbox4
View 29 RepliesI'm trying to access a USB Storage device, however the device although appearing in the commputer / Drives section, is not allocated a Drive letter, thus when I itterate through the attached drives link text it does not appear, I've taken the "Location" from a file on the drive (properties) and it comes up as COMPUTER/Q1/Datacasts but this doesn't work when I pass it to the FileInfo Object (network drive cannot be found) And I'm at a bit of a loss at which way to procced
View 1 RepliesIs it possible in VB.NET to get the directory of a file copied/moved to a removable storage device?
For example, I have msword document on my desktop and move it to my storage device. A dialog box will appear or anything that will show the directory of the document.
The idea is whenever you move a file into the specific device, it will automatically processed. I will be using this to compress a file automatically when it is moved or copied to the storage device.
how can i make my program feel if any device or usb device plugged into the computer or unplugged.url...
View 3 RepliesA Problem in accessing a device from VB Windows cannot load the device driver for this hardware because there is a duplicate device already running in the system. (Code 42) This error is because i am using 2 devices of the same company which has the mass usb storage on it and when i install one of the device the other hides. So one is detected the Other is not. It also give a error called designed dragnonacally something...
View 2 Repliesso far i have made the layout, now i just need the code so that anyone with an email can use it not just with gmail...
View 3 RepliesThe objects I am trying to mass select are text boxes, and I am trying to select them all, without tediously selecting all of them, to see if any are blank and place in a 0 if any are.
View 4 Repliesim trying to create a mailer to mass mail
the code i wrote is
Private Sub btnSend_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSend.Click
ProgressBar1.Value = 10
[Code].....
the problem is whenever mail.From = New MailAddress("" & txtfromdisplayname.Text & " <" & txtEmail.Text & ">") is entered the mailer wont send out to multiple recipients (when a single recipient is tried it works)
I'm doing a mass email system using Microsoft Visual Studio 2005 and I'm suppose to use my codes to read the Email address from my Sql Server and send messages. My Default Smtp server is already running but my codes still cannot read the data from the sql server and send emails..
Imports System.Data
Imports System.Data.SqlClient
Imports System.Net
Imports System.Net.Mail
[code]....
I'm making an art program involving 8x8 squares on a grid, but there are 64x64 grid square PictureBoxes for each grid square. Meaning there are 4096 picturebox squares to be setup.
I'm having them names like pic0001, pic0002, pic0003, etc... but re-naming them individually would take me forever. Is there a way to mass re-name them at once?
I'm using Microsoft .NET Framework 3.5 to create a web service with VB.NET. I'm using a Stored Procedure in SQL Server 2008 so that SQL can insert all the data that I'm passing. The problem is that in one of the servicse I need to pass around 10,000 records and it's not very efficient to run the stored procedure 10,000 times.
[Code]...
I have a website that has 20,000+ members and i want to send each member a personalized admin update emails.I am currently sending about 200 emails at a time. To send to all the members, it takes me a few hours to complete.This is what I am trying to figure out how to implement.How can i possible build a webservice or something to send all these emails in the backgound at set intervales or something so I don't have to sit and click a button each time to send the emails out?I have seen many opt-in email list sites that when sending email, you get a page that the email was sent to the queue, and i receive an email back when the sending of all the emails is completed. This is something that i want to implement.
View 2 RepliesI want to be able to send emails to users on creation of an event to invite them. However I want the emails to be personalized i.e. each email will contain there name etc. At most the emails will be sent to 50 different addresses. What is the best way to go about this?
View 2 RepliesThe code below updates all cells in a DataGridView column to a value from a textbox. This code works in that all cells in the desired column are updated on screen. The DGC is bound to a dataset. The problem is that when I call the dataset .Update method, sometimes the first row (row 0) does not get updated. I have run SQL profiler and can see that no SQL update command is submitted for the first row. The first row only gets skipped the first time the update is run after launching the app. Subsequent updates run for all rows, until the app is re-launched.
I have verified the row state is Unchanged with: Msgbox(DataGridView1.Rows(r).State.ToString).
The 2 commented lines below are other things I have tried that still cause the first row to be skipped.
Private Sub btnUpdateAll_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdateAll.Click
If IsNumeric(Me.tbUpdateAll.Text) Then
[Code]....
Basically, I want to be able to write all listbox items names to textfiles names, so if I have the following listbox items:
dog
cat
catdog was a good show
1 3 4 4 6
I want them to be all textfiles. NOT make a textfile then have that text in them, i want to make individual textfiles for each item.
I'm making an art program involving 8x8 squares on a grid, but there are 64x64 grid square PictureBoxes for each grid square. Meaning there are 4096 picturebox squares to be setup.
I'm having them names like pic0001, pic0002, pic0003, etc... but re-naming them individually would take me forever.
Is there a way to mass re-name them at once?
I am working in Visual Basic 2008 and am trying to create an application that calculates body mass index. I have the entire form complete as well as much of the source code, but I am having trouble creating the code for input validation. On the form I have a text box for entering weight and a text box for entering height, which are both used to calculate the body mass index. Therefore, both text boxes input information cannot be negative or an illegal character ( $, @, !...) The input validation is supposed to present a Message Box that displays something along the lines of "Please enter numeric values" when input values are illegal characters "Please enter a positive number" when input values are negative "Invalid Entry" when input values equal 0
Here is my code:
Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
' Declare local variables
[Code].....
I am doing a project on sending mass email. My codes should be able to read contacts/email from the SQL Server 2005 database and send mass email with attachments.Below are my codes for sending email. My windows application limitation is that it can only send email from a valid email address to a valid address one at a time with the help of a relay server. Also, it doesn't allow the user to attach attachments and could not read from the sql server database.[code]
View 1 RepliesI am doing a project on sending mass email. My codes should be able to read contacts/email from the SQL Server 2005 database and send mass email with attachments.
Below are my codes for sending email. My windows application limitation is that it can only send email from a valid email address to a valid address one at a time with the help of a relay server. Also, it doesn't allow the user to attach attachments and could not read from the sql server database.[code]...
I am currently editing a big mass of items, which is taking very long to do. Even loading up my Treeview from a file is faster. What I currently have is this:
vb.net
Private Sub IncrementTreeviewNodes(ByVal Position As Integer)
While (Position < treeMeshList.Nodes.Count())
treeMeshList.Nodes(Position).Text = "Mesh #" + Position.ToString
Position += 1
[Code] .....
i have an array of booleans whose current boolean values I want to preserve but add additional length to the array? How can I achieve that? My code looks like this:
Dim Array() As Boolean
Dim ArrayInterimShort() As Boolean
ReDim Array(119)
[code]....
I am trying to create a code where I placed sets of numbers in an array.I'll use a masktextbox to have the user enter the numbers to match what's in the array. If the user enters the number, ex: social, and the data is correct (matches the numbers in the array), something happens if the number entered in the masktextbox does not match any of the number sets in an array then another thing happens.The masktextbox so far only validates format and gets number only, however, I want the number entered to match whats in the array.
View 1 RepliesI need some input how to storage some information.The information I wish to store is a list (1-300) that contains the following:
-Raw material (string)
-An array of Value (double or long)
-An array of Date (string preferably)
My first approach to this was looking at the structure statement but I couldnt figure how to use the array within the structure statement.
Almost every one hour, when I run the project
View 12 RepliesI am using a MySQL Server on the net and a Windows Forms client program, which connects to this server.
I want to use SSL and have prepared everything, that this can be used. My primary question now is as follows:Where / how to store the files for the SSL certificate as best way? As embedded resource? as external file? As part of the My.Settings environment?
I have been trying to do this for about a month now (hard to get answer quick because of school), but i need to decrypt a file into memory. I know you have to "write all bytes to memory" but i have two problems with that, 1. I have never touched on that itself and don't know how to write the bytes of an executable to memory, 2. I still wouldn't know how to decrypt it in memory. Right now my code is:
ElseIf entype = "rc4" Then
If File.Exists(thepath & exerandname) Then
Kill(thepath & exerandname)
[code]....
it checks if the file exist then deletes it, then it opens the file and decrypts (_4reversecr.enc) the file(Cutter(1)) with the key (key)?
I'm making an installer that needs to have information stored inside the exe itself.I cannot use my.settings because it is stored outside the application and if it is changed and the exe is moved to another computer it will reset to default.
And I cannot use resources since I cannot add/edit resources after the application is build.
Is there any way I can store and change info even if the application is moved to another location?