Say I have a data file that was created in VB6 like this:
Dim arr As Variant
Dim unit As Integer
Dim i As Integer
unit = FreeFile
Open "SomeFile.dat" For Binary As unit
[Code]...
I am trying to get the data from the text file to load into an array of structures and then be displayed in a listbox on FormLoad with no luck, all I get is a blank listbox.
Code:
Public Class frmMemList
'Create a structure to which data from text file MEMBERPHONES.TXT will be read.
Structure MemberList
[code]....
I am really struggling lately for some reason. I do not know why, but I can not get simple programming code to work, usually due to simple mistakes. Anyway, enough about that.Here is my code, I am trying to get the data from the text file to load into an array of structures and then be displayed in a listbox on F
Public Class frmMemList
'Create a structure to which data from text file MEMBERPHONES.TXT will be read.
Structure MemberList
[code].....
i have an array contains a-z.Then i have a textbox and when click on the button, it will replace the text inside the textbox to the index number of the array.Example, from "abc" will become "0 1 2" The code below do the job.how to do so that i can replace the text inside the textbox from "0 1 2" back to "abc" based on the array?
Dim txtKey As String = readKeyTxt.Text
readKeyTxt.Text = ""
For Each b As String In txtKey[code].....
I have a vb .NET 2005 form that needs to load data based on a selected month by the user. Because there is a large amount of data in the table (60k+ records per month) it is taking the query a long time to pull the dataset back and populate the form. how I can decrease the overhead associated with querying a large dataset to populate a base form?
Note, I have created an identity key on the main table but haven't yet indexed any other fields (Though I could use some suggestions on how I should index).
See the following example of the Stored Proc that is run before my .net form is launched:
Dim cmd2 As New SqlCommand
Dim ConnectionString As String
Dim TheDatabase As System.Data.SqlClient.SqlConnection
[CODE]...
I'm trying to load several grids based on the Type values in my xml file. For example my xml file is in the following format:[code]How do I accomplish this when in the load event of my windows form?
View 2 RepliesI am not sure how to phrase my question properly but I want to achieve something like this.
I have a class named Products public class Products
private ID as Integer
private Name as String
Public Property ProductID()
Get
Return ID
[Code]...
When I do the same, I am getting an error "Object Reference Not Set to an Instance of an Object.
I have a query in Access 07 that identifies the following fields: ContractID, status, start date and end date. For each contract, I've been able to search a network share and upload its corresponding file; however I need to skip the import and write a record to a table for contracts with the same start and end date. I've included a placeholder (in bold below), but how do I make the date comparison work? Do I need to create a multi-dimensional array for that or can it be done with the code I have?
Private Sub cmdRefreshList_Click()
DoCmd.SetWarnings False
'Create an array based on the true-up contract IDs.
[code]....
I am creating a project in VB.NET in which one of the reports require that the name of employees should be displayed as column names and whatever work they have done for a stated period should appear in rows below that particular column.Now as it is clear, the columns will have to be added at runtime. Am using an ODBC Data source to populate the grid. Also since a loop will have to be done to find out the work done by employees individually, so the number of rows under one column might be less or more than the rows in the next column.Is there a way to create an empty data table and then update its contents based on columns and not add data based on addition of new rows.
View 1 RepliesI'm having some more trouble with working with arrays. My assignment is to take an input file of 10 numbers and display the original array, the array reversed (1st element is last element, etc.), the average of the parallel elements (nth element of both arrays), the average of the original array, and the elements greater than the average. I know I need to load the file into an array. However, I can't seem to figure out how to reverse it, nor average the two even if I can get it reversed.
View 6 Repliesi'm tired of searching about Load file from pc to my app. and then read a file in hex.
now i have these code and everything is ok with small file size. less than 1GB files my question is all of us know Hex files reader like (Hex Workshop Editor 6... and Hex Editor Neo) i Download these and i read the hex of file over (36 GB) (39,490,420,735 bytes) without any save bytes in Ram Memory???
IN vb.Net when i try to read Hex of file over 1GB in array.> windows 7 not responding iknow that's because i have 2GB in my machine!! what's the way that (hex workshop) use to load any file Regardless of size this is the code that i use.
[Code]...
On Error Resume Next[code]...
on debug mode, i got the pic array to contain nothing but 0.
i'm tired of searching about Load file from pc to my app. and then read a file in hex. now i have these code and everything is ok with small file size. less than 1GB files
(my question is)
all of us know Hex files reader like (Hex Workshop Editor 6... and Hex Editor Neo)
i Download these and i read the hex of file over (36 GB) (39,490,420,735 bytes)
**without any save bytes in Ram Memory**???
IN vb.Net when i try to read Hex of file over 1GB in array.> windows 7 not responding
iknow that's because i have 2GB in my machine!!
what's the way that (hex workshop) use?
this is the code that i use.
X = String.Join(" ", IO.File.ReadAllBytes("Location of file").Select(Function(b) b.ToString("X2")).ToArray())
I have a form with a listbox that when the form is opened I need it to display info from a file. I don't know what would be easier to work with Excel or a txt file, but it is in this format:
Phillip Frank
3/19/1990
3
999-555-8618[code].......
I would like it to populate the list box when the form is loaded, but if I have to use a button to tell it to load that is fine also.On the same form I have 4 textboxes that ask for each of the above items (name, DOB, Level, PH#) and a button that when pushed I want it to save it to the same file where the above info was pulled from in the same format.The Show Contacts button doesn't have to be used if it is not needed.
VB 21010 How to load an array from a txt file and write to it also?
View 4 RepliesI am trying to code a delete button for a browsing program based on data from a txt file. I have coded the buttons to sort(ascending and descending), append to the text file, search the text file, but I can not seem to get the delete function working. I am using VB 2010, this is what I have so far:
Code:
Dim deleline As String
Dim line As String
Dim isFound As Boolean = False
sr4 = IO.File.OpenText("Students.txt")
[code]....
I am working on an assignment where I need to have a product list that is loaded into a list box upon the form loading. This is generated from a txt file in the /debug folder upon loading. Now my question is how do I have the product names show up in the list box when there are 3 separate parts to each product. The product, the cost, and the quantity in inventory, and all I want to show up is the product in the listbox, where the rest show up elsewhere.
CODE:
'This procedure loads the data for the array from txt file. As well as loading the Product.txt file into the system when the program loads.
CODE:
I have a text file, with several lines of comma delimited data. The easy part is that each item fits into the same field, so I can use a 2 dimensional array. I would like to use .net classes to do this, not the old file handling functions I was used to.How can I take the text file and load the data in the text file into a 2 dimensional array.Here is example data in test.txt
1,1,1,2,2,2,1,1,1,3,3,3,4,4
2,3,4,5,1,1,1,2,3,4,5,1,1,1
2,3,4,5,6,1,1,1,1,2,2,3,3,4
So this would go into a (14,3) array.I would like to make sure, that the array is automatically sized to the size of the data also.
I have a text file with the following information:
-----------------------------------------------
Model: Accord
Manufacturer: Honda
Year: 2004
VIN: FJ235FJSLO323434DJS
[Code].....
how to setup my loop to insert the text data into my struct array.
I have a datagridview which have 5 columns. The name of the columns are T,C,F,S,H. [cod]e...
So i want to display this data in datagried view. I must display the number beside T to T column, the number beside C to C column and so on. It should only display number in the respective column. It should not display the T,C and so on. [code]...
I want to reading in a excel file and extract the sCodenumber sDescription ans the sStatus and store them in a array : StatusComposeArray(5200) As MyCompose. After this I need this array for comparing outside this class. But as can you see the array is defined inside the sub: ReadingIn_ExcelFilesCompose [Code]
View 2 RepliesIf it's 0-based, how can we add a placeholder to make it 1-based?
View 4 RepliesI am trying to load a xml file into a data set by loading the information into a data row. when i try to complete the task it throws a nullReferenceException. the row has data in it and i used the code earlier and it work.
[URL]
Imports System.IO
Imports System.Xml
Public Class frmMain
[Code].....
[VB 2008 express edition] i am doing a application data grid view bound data from MS access (.mdb) as my dataset. the dataset have 5 tables, each table consist of ID, Items, Rates, And Amount, i face some problem here:
a) cannot delete row from the table, (using binding navigator but error)
b) how can make a opendialog to load the .mdb file dataset table in to the datagridview?
c) how do i save table in the datagridview into the MS Access file ?
I have an issue where I need to load a fixed-length file. Process some of the fields, generate a few others, and finally output a new file. The difficult part is that the file is of part numbers and some of the products are superceded by other products (which can also be superceded). What I need to do is follow the superceded trail to get information I need to replace some of the fields in the row I am looking at. So how can I best handle about 200000 lines from a file and the need to move up and down within the given products? I thought about using a collection to hold the data or a dataset, but I just don't think this is the right way.[code]....
View 1 RepliesLet's say I got a Dictionary type object holding some important info. Well, my user wants to close the program and work on it later.
How do I save the Dictionary and other variables in one single file, which can only be read by my program itself?
I have a directory with xml files inside, inside each xml file is the following data:
<Email>Abella@hiphopfan.com</Email>
<UserName>Abella1203810</UserName>
<PassWord>oxqzobbr23</PassWord>
I need to loop through each xml file in the directory and use the xml nodes <Email> & <PassWord> to programmaticly log into an account.
vb
Dim directory = New DirectoryInfo(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) & "Accounts")
[Code]....
I have an image and I have a method that when you click the image it draws an ellipse I am wanting to save the x and y coords to file and then reload them (maybe later on be able to click the ellipse in future to delete them) and I have no idea how i could do this if anyone could start me off or point
View 12 Replieshow to auto load data content from a file (primarily containing rtf)when the file is opened. I want to create a system like Microsoft word where you create docx/doc files and double clicking them opens word software and loads the files.
View 3 RepliesThe program is finished I am on testing part. But I cant run the program. What happened was since I did this I got new PC so I had to install everything from scratch.. So now after downloading the mysql .net connector to connect to database and installing it i keep getting this error
"Could not load file or assembly 'MySql.Data, Version=6.1.3.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies. The system cannot find the file specified."
I tried everything Installed every single past version of the .net connector but I still keep getting error. I tried this on my laptop and even my new pc (which is 64bit so I thought thats the problem) but since I get the same error on laptop I don't know what else to do.
