Storing Value In Module
May 10, 2010
I have a login menu when the user has entered the correct password and username. I assigned Username = txtusername.text. I created a module call general which I stored the value for later use. However my problem is I found that my program would crash every time it tried to pass the value from the username text box into variable username when being deployed on windows vista or windows 7 but have no problem at all running on windows xp. When I removed passing the value from Username = txtusername.text there was no crash.
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Aug 16, 2010
how we can declare a connectionstring in a module and call that module
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Apr 27, 2012
I have a VB.Net interface that communicates with an Access 2k3 Database using this module:
Module MOD_ENGINE
'Declare Database connections controls
Dim con As New OleDb.OleDbConnection
Dim dbProvider, dbSource As String
[code]....
I want to call EngineConnect procedure from MOD_ENGINE module into popCboBox module so I can ignate the engine!
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Dec 21, 2009
If I have two arrays: 1st array="hello" and the 2nd array="there" How can I store these two arrays in a 3rd array ? The answer should be>> hellothere in the 3rd array.
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Jan 16, 2009
lets say the following is entered into a textbox: 2 + 5, I need to store the 2 in a variable, ther operator, and the 5,
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Jun 2, 2011
I need to store data in a grid like this:
{0,1,2,3}
{4,5,6,7}
{8,9,10,11}
{12,13,14,15}
I know I can use multi dimensional arrays, but Is there any easier way to do it? Also I need to get values from it like myData.Item(0,1) would return 1.
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Aug 19, 2010
What is the best way to store 4 bits from a byte in VB.Net? Where best means:Most straightforward method of storage from a Byte type.The easiest to work with while performing bitwise operations.Straightforward conversion of the bits to other types.Storing them in a BitArray via it's constructor reverses the order of the bits. This means that attempting to get the value of the first bit will require looking for that value in the last entry in the BitArray.
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Mar 21, 2012
I have a vb .net ArrayList that I would like to store in one field on my Ms SQL 2008 database. Is it possible to put it in and get it back out as an ArrayList? I'm guessing i need to break down the Array some how and store it as a string, then rebuild it when reading back as i dont see any datatypes for sql that are for arrays. Which is a bummer for me! edit - The ArrayList stores a set of quote ID's. There is no limit to how big it is so it could hold 1 or 1001 different ID's
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Oct 6, 2011
Im working on an Asp.net / VB.net website and coming from a C# / WPF background things are still a little new to me. I have declared a DataTable like so: Public notificationList As DataTable And I have then used the Page_Load event handler to populate it and bind it to a control on my page, which all works fine
[Code]....
However in another method i need to be able to access this DataTable, yet whenever I do it always appears as nothing. Do I need to be storing this value elsewhere like in the session etc?
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Feb 6, 2010
Basically, I want to have a database that's lightweight and I won't need to install amillion other things on my clients computers for them to access this.I just need a simple method of reading and writing values so that they're not hardcoded into the program. I could do MySQL (which is what I'm very familiar with), but it doesn't need to be making calls remotely.
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Aug 15, 2011
i am making a project and in that getting storing and loop problems there are two fields serial no and quantity when quantity is entered serial number must be asked then only and the number of times quantity is entered that many times serial number must be asked also serial number is from to too like 1 to 6 or 1 to 5 so i have to taken 2 textboxes serialfrm and serialto to store but now the problem is that i am not able to write proper code for it either it doesn't get saved to the particular name to which both fields belong or it keeps saving without stopping.
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May 28, 2009
In my application i am having lot of functions and now i want them to be public function i mean that where and what is the best method of keeping this function in one file or control where i can call them from any where in the VB application , i am using visual studio 2005?
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May 18, 2011
I am trying to retrieve a 'tag'(Is it called that?) from an XML webpage. Once I make a post request from my vb.net app it sends a command to my online webserver and redirects me to a page that has entries that change each time. The page that im redirected to that changes each time looks something like this:
<mainpage> <id>hello</id> <random>176</random> </mainpage>
What vb.net code would I use to retrieve the id (In this case 'hello') and store it in a variable.
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Aug 21, 2009
As I learn more about programming, I've discovered that I'd like to occassionally save bits of code for either later use or scrutiny.I was considering just pasting it into Word, but that seems inefficient when it comes to finding it later.
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Feb 12, 2010
I have the following code that I use to convert a picture into bytes.
Code:
Dim strImageFilePath As String = _
LblPicture.Text
Dim fsImageFile As New FileStream(strImageFilePath, _
[code]....
This then gets used to store into an SLQL 2000 VarBinary field.I thought the above would work but its only letting me save pictures that are under 8k in size, but I need to be able to save much bigger files than that.
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Mar 23, 2010
I'm creating an application in Visual Basic 08 for a friends company, and im trying to store a unique reference number after it being entered in the textbox.I've been messing about with classes, objects and arrays but can't get it right so far
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May 6, 2012
In lack of a Value property I planned to use Classes for storing Text and Value properties for my ComboBox items. So far I've succeeded.Here is my class:
Public Class clCombobox
Public cname As String
Public cvalue As Integer[code]......
It seems like this works so far. But how do I get data back. Like if I want the value of the selected CheckBox item? I tried using:
CType(cmbCombobox.SelectedItem, clCombobox).Value() Did not work.
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May 2, 2011
I've linked the two using the standard data sourcing method and I now need to use the data that is read in to it on another form. The idea of this is that I'm creating a wage calculator and the employees are stored in a database and can be viewed on a vb form, however, I now need to use the data of their pay/hr to be used on another form to calculate the wage.I have tried to declare a public variable across the two separate forms, and on the button that takes you to the other to set this variable as the contents of the text box which is displaying the pay/hr using the following
Public Class ManageUsers
Public HrlyRate As Decimal 'Declaring global variable to use between forms
'Some other code in between relating to rest of the stuff on the form
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
RatePerHourTextBox.Text = HrlyRate 'Saving private variable to global variable
Calculation.Show()
End Sub
End Class
Then on the other form I have used this code to do the calculation:
Public Class Calculation
Private Sub calculation_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
[code]....
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Dec 4, 2009
I have a quiz I am building that randomly picks the questions from the database and displays them to the page. It seems like it might be hanging with the logic I have on the page_load.I am storing the questionid in a session comma delimited and keep looping through to get the next randomly generated number that isn't in the session. [code]
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Apr 25, 2011
I need to construct a small program that "stores" entered test scores into the program then when a button is clicked, it will display the scores with the appropriate names in the box below. The values are the names "Brian" "james" "jimmy" "jock" and "gok" and there are two test scores "main test" "small test".. I need to be able to "store" these in a "database" and then when the user clicks "show marks" it displays all the names with the marks in a table format. I'm totally screwed and i dont know where to start..I already have done a little coding for the gui such as a password entering system and all that works, all I need now is this storing thing.
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Jun 23, 2011
i am generating a barimage and storing in a database i am able to create a barimage and store in a local drive but while transferring i am facing difficulties my code is
con.Open()
barcode = New BarcodeLib.Barcode.Linear.Linear()
barcode.Type = BarcodeLib.Barcode.Linear.BarcodeType.CODE39
barcode.Data = TextBox1.Text
[Code]....
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Jan 9, 2011
i am using vb 2010 i was working with images.....i extract a pixel from the image using getpixel()...but wen i assign it to an array of colors i am getting a run-time error.
"Object reference not set to an instance of an object."
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May 15, 2009
I'm having trouble trying to put together some code for an array. What I'm trying to do is get data entered from a text box and store it in an array.What I then need to do is take the entered data and make it appear in reverse order to what it's been entered and show this.
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Apr 22, 2011
storing data into an array. I understand how to place information in one record eg in index 0, but how do i place data into several records(indexes).
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Apr 25, 2012
I have propetie get set classes, and a constructor to quickly set them all.The only concern I have is that the byval in the constructor class and the byval in the set() properties, might be inefficient because the parameter is copied twice? Should I use ByRef? Or is that too dangerous?
'Config data for an Environment.
Public Class Environment
Private msEnvName As String
[code].....
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Jun 23, 2011
I'm trying to learn visual basic and i've made my application all work and now I just need to make the listview save data.As far as I know, I can create a database with all the relavent tables in it for each column in the listview. For example in a database, I will have a table that will have four columns because I have a four column listview. Each row must be tied together though.
The other option is to create a text file and use some xml or seperate them with commas. which one should I go with? I'd rather do the database one, but I really have no idea how to go about it.
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Jul 5, 2010
How can i store data accquired from an Ip address within the LAN into my database?
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Oct 14, 2011
this is the dataset:
[Code]...
however when i run the below, i got an error:
[Code]...
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Dec 18, 2009
how to store images in database using VB.Net?
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Mar 23, 2011
I am trying to create a program that takes cd information (ARTIST TITLE COUNTRY COMPANY PRICE AND YEAR) and saves it onto a XML file.The info is entered into separate text boxes.The program should also store 3 cd in memory before batch writing it to the xml file?
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