I have a 1-dimensional array that is essentially is written to a csv file. My problem is that after I have loaded the entire array...I wish to write it to the csv file and I'm not sure how to set it up.[code]...
View 6 RepliesIt's been ages since I've done any coding (not that this is much excuse for my stupidity!). What I want to do is to be able to loop through a directory and list, for instance, all of the txt files in there.I can get the length of the files with the following:
For Each zFile In System.IO.Directory.GetFiles("c:fileloop", "*.txt", IO.SearchOption.TopDirectoryOnly)
MsgBox(zFile.Length)
Next
But I'm stuck on actually returning the file name.
I'd like to go through all the items of a ListView control in order to ... well execute some code. I suppose I have to use the "For i=1 to ..." statement , but I am not familiar at all with this control. As I said , I'd like to check all of the items (the elements in the first column) and for each of them that has "Yes" on the third column , I would like to run the rest of the code .
View 9 Repliesi 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 am working on a code that should capture the color of a pixel in a bitmap and then check if the 8 surrounding pixels have the same color. If the checked surrounding pixel HAS NOT the same color it will be ignored, otherwise if it HAS the same color, it should check for its own 8 surrounding pixels and so on.
To do that, I have created an array that starts with a single entry (the x,y coordinates of the initial pixel). So, when a pixel with the same color is found it is pushed to the end of the array. I used a for each loop supposing that VB would keep looping until the end of my array - and since it is growing, the last position of the array would be always pushed until I have not more pixels to be checked.
The problem is that VB is not respecting it, and is considering my array as if it had just 1 entry. Seems that it catch the size of the array when it enters the loop, and regardless the fact I have pushed new items to the array it doesnt keep looping it.
How can I force VB to update the end of array position while looping it? Although I think it wouldnt be necessary, here it goes the code I have so far...
Code:
I have an arr of sPNoListDefintion.[code]How can I cycle through the elements?Something like For Each i As integer In sPNoList.
View 10 RepliesI'm working on a Connect 4 game. I created a rectangle with 42 holes punched out of it (drawn in Panels Paint event) and I have 42 circles (created with PowerPacks) placed in each punch out. Right now I'm just trying to get the game pieces to drop into place by looping through each column and coloring each punch out sequentially. Here is my
vb.net
Public Class Form1 Private Sub Panel1_Paint(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Panel1.Paint e.Graphics.SmoothingMode = Drawing2D.SmoothingMode.HighQuality Dim dimension As Integer = 50 Dim
[code]....
The problem I'm having is with my array of OvalShapes. I declared it as object and I don't think that's right. The for loop under the click event is not producing anything.
I'm making a card game and I want to try and design my own card deck.
Dim X As Integer
Dim currentCard As Integer, currentCard2 As Integer
Dim RandomNumbers As New Random()
Dim NumberofCards As Integer
[code]....
I started a basic vb.net class for my fall semester of high school, and although I've learned a lot, my goal since the start of the semester has been to do this. I realize there are simpler way of assigning card values than writing 52 if then statements, but I'm planning on doing other things with the statements. As you can see, my main plan of action is to generate a random number for each card, loop through the array list to make sure the random number representing that card hasn't been assigned before, use the value to select the card, and then add the randomly selected number to the array list so it won't be used again (non-repeating random numbers).
1) I'm trying to represent all the numbers with Numberlist.Item(X) and that doesn't work because either a) x represents any one number or b) x always represents only 0, which means it only checks the first number.
2) I think I've read something about using this method for generating random numbers in a loop, that it doesn't work for some reason.
Is there a way to write the content of the clipboard to a file on the PC. I'm currently using window7 and i got a tool horst.exe that seems to do something like this. But the tool always crashes on windwos7. So Any program which can be called from shell that writes the content of the clipboard to a file.
View 1 RepliesIs it possible to write the contents of a TextBox to memory so it is available in e.g. WORD or NOTEPAD and can be pasted using CTRL-V?
View 1 RepliesEmpNoteFileName = EmpFileDir & SEmpID & ".TXT"
FileOpen(EmpNoteFileNum, EmpNoteFileName, OpenMode.Output)
txtAddEmpNote.Text = "LAST UPDATED ON " & DateString & vbCrLf & txtAddEmpNote.Text
[code].....
I need the code when i write something in a textbox and when i click on save, it is save in a folder and in that folder will be the text file. How do i do that?
View 4 RepliesI'm struggling to write the contents of a dictionary to a message box. Ideally I'd like to write the contents to an XML file, but I'm having difficulty even writing the contents to a message box!Im using basic code to get me started....
Dim users As Generic.Dictionary(Of Integer, String)
Dim x As New Dictionary(Of Integer, Users)
x.Add("1", New Users("1", "Joe"))
[code]...
I am trying to loop an array in a sql insert statement but i can't get it working. Below is a demo i'm trying to get it running. I think i am having problem with the declaration of variable in sql statement.
Public Class Form1
Dim arrayValue(5) As Integer
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click[code]......
I am trying to create a multi dimension array that will search each row of the array and total up the number of 0's 1's, 2's, and 3's. I believe that I need to create some sort of looping structure that will search through each row of the array.I have created a listbox that will allow the user to pick which row of the array the program will search.This is what I have created so far, but I am only just learning and I am having trouble wrapping my head around how arrays work. So I'm not sure if I am on the right path or not.
Dim racescores(,) As Integer = {{0, 1, 0, 3, 2},
{1, 0, 2, 0, 0},
{0, 3, 0, 1, 0},
[code].....
Would I be able to for example, write the contents of Textbox1 (say it's labeled First Name) and Textbox2 (Last Name) and make it write to a database. The on the next screen, form, window, whatever....have it say Hello (First and Last name that was put in on the previous screen).
View 2 RepliesThis code has changed and will be applied to another question
View 3 Repliesi have 6 text boxes on a form the contents of which changes depending on a list box, i also have a button which will be used to create a log file, my question is how do i write the contents of the 6 textboxes to a new text file, and on separate lines in the txt file when the log button is pressed.
EDIT: preferably also needs to use the save file dialog so user can choose file name and location to save to.
im having some trouble with my loop code. When the isnumeric code detects it not a number it throws the msgbox error message but moveson to the next array for the user to enter a value via inputbox. Is there a way for the program to send the inputbox asking for the value again before moving to the next array?
[Code]...
how to get an array of string from certain datagridviewcolumn,i try using this code,it doesn't work..
For Each row As DataGridViewRow In dgvPaketRow.Rows
If Not row.IsNewRow Then
Dim str() As String = New String() {row.Cells(0).Value}
Dim strRes = String.Join(", ", modCommon.str)
msgbox(strRes)
End If
I have declared and array
[Code]...
I have created a SWAP function that does the swapping if the index value is greater than the index+1 value, with a loop that will iterate through the array (assuming that you dont have to specify how many iterations are required) until the array is sorted.
In VB6 I could set up code to loop through say 10 option buttons to check their values. The code would be something likie this:[code]But in VB .NET it seems that if I use the Controls command as above I cannot use/check the Checked property as Control does not take that as a property of Control. It seems also that I may have to use the Find property of Control as in "Controls.Find" etc.How can I do this in VB .NET? I have a very control intensive application and I must be able to easily loop through controls and check their values without writing out 10 x the code required.
View 8 RepliesIs there a way of merging (importing or whatver is the correct terminology is) the data from an Array in to a DataTable woithout looping. I already know how to loop through the array to populate the DataTable with new DataRow but I'm looking for something much faster if it exists. I've got a 1 dimensional String array i.e. 'String()' that I need to populate a DataTable with new DataRows.
View 4 RepliesI'm using VB.NET 2005 Pro to write a batch file to empty folder contents, but I'm having problems putting quotations around the parameters.Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnTNFCleanup.Click Create an instance of StreamWriter to write text to a file.
[Code]...
I'm trying to write a program that detects the contents inside a textbox, and if empty displays a warning, and does not input anything into a rich text box. However, if something is detected, it would not display the warning and input the textbox's text into the rtb.
I got everything else, just need help with the textbox detection code.
I have 4 list boxes and I am trying to write the contents to a .txt file to load back into the list boxes. I am having trouble with the code to write all the contents into the file. Should I make a file for every list box individually? Or just one file? Here is the code I have so far...
Private Sub SaveButton_Click(sender As System.Object, e As System.EventArgs) Handles SaveButton.Click
Dim FileString As String = "F:Microsoft Visual Studio 2010Advanced VBVB Auto
[Code].....
I save the client data into an array list. How to find part of data(currentIP) inside the array list(clientList) with fast method? [code]
View 1 RepliesAm learning arrays at the moment and I have the below piece of code that goes through drive C: and displays the files in in a list box.
I want to try and expand it to use array.sort so that it gets the files, puts them into an array, and then I can sort by filename or file size. I have been rattling my brain over this - as to how do I put the files into an array.
Would like an explanation if possible as more interested in learning it rather than the answer.
Private Sub btnclick_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnclick.Click
Call Clearlist()
[Code]....
I am getting an error that I can't track down.
Elsewhere in the project:
Public teamname (numteams) as string.
In this form as a form load event
For i = 1 to numteams
Listbox1.items.add (teamname(I))
next i
I get an error message to try new but I can't figure out what it means.