in VB 2010 how do I display the contents of a 2 dimensiomal array. As a VB6'er, I miss the flex grid control and I can't seem to adapt to the Data Grid view for displaying array data.
View 13 Replies
I have an array of info with each element containing a structured variable. Once the array is full of info it is passed to a procedure "DisplayStructure" which I'm trying to get display a MessageBox with the info in it, separating each element on a separate line. I can't get it to display even one element on one line. The structure is called Employee and what comes up in the MessageBox is Employee.Example or Example.Employee, can't remember which.[code]...
View 3 RepliesI need a program that will display the contents of an array in two labels. I'v been having problems. Does anybody know how to debug my code?
HTML
' displays the first and last names in label controls
Dim names() As String = {{"Mary", "Jones"}, _
{"Susan", "Washington"}, _
[Code].....
I have an Array called myDat
It contains Name and date of birth;
Joe
12/15/80
Tom
7/11/65
and so on ... Keeping the same order so they match I want to put the names in one array and dob in another
Is it possible to display the contents of a two dimensional array vertically on a form in vb.net using listview, and if so how would I do it? So, if my array is declared as dim myarray (2,10) how would I display the contents vertically in listview.
View 2 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 RepliesIs there a way to display the contents of a drive (C:/) in a way similar to that of windows - pretty much just like this[url]...
Except that i need to show the files and - this is the part i really have no clue on - using the icon maybe using the Icon.ExtractAssociatedIcon method ?
So suppose there is a string: StringRamdom and you display it's contents in a listbox.
so listbox.Items. Add(StringRandom) but it should be displayed as A, B, C
not
A
B
C
Am 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]....
Does anyone know a way to have a list box perminatlty placed on an application form that shows the contents of a specific folder?
View 8 RepliesI've got another problem. This time I am Trying to display the contents of a folder into a textbox:
Public Class Form1
Private Sub browseFolder_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles browseFolder.Click
FolderBrowserDialog1.SelectedPath = _
My.Computer.FileSystem.SpecialDirectories.MyDocuments
[Code]...
I know the line TextBox1.Text = FolderBrowserDialog1.SelectedPath is not what I want to be doing, but thats the only thing I can get to work, but that just displays the folder path obviously. What I want is to display the contents of the selected folder into TextBox1
how to display richtextbox contents in Datagridview. Wat i am doing is on button_click1 i am loading text files to richtextbox and on button_click2 i am saving it in a Drive and loading from there to Datagridview is there a alternate way to directly load from richtextbox to Datagridview
View 3 RepliesDoes variable total have to be converted back to string ie..Cstr(total) in order for the result of total to be displayed in the text box txtdisplay? I notice It will work if I convert it to string or If I leave total a double it will still display the result as a double. what is the correct programming practice? [code]
View 1 RepliesSo far I can access the Recycle Bin to empty it with this:
#Region "Empty Recycle Bin (SUB)"
Private Declare Function SHEmptyRecycleBin Lib "shell32.dll" Alias "SHEmptyRecycleBinA" (ByVal hWnd As Int32, ByVal pszRootPath As String, ByVal dwFlags As Int32) As Int32
[code].....
I am currently going through Murachs Beginning vb.NET and have come across an problem with one of the exercises at the end of the chapter on collections. I basically have to update a simple Invoice application that was developed in an earlier chapter.It requires me to update the app such that everytime a new invoice object is created ( via pressing the new invoice button) this object is added to a queue. I am ok with this part.However I then have to edit the exit procedure so that the invoice objects are dequeued and displayed in a message box. This is where I am having my trouble. My code so far is shown below. This consists of the form.vb and the and the Invoice class.[code]I have also added a diagram of the format for the message displayed in the message box. I know I have to iterate through the queue but how can display the invoice customer name and invoice total?
View 4 RepliesI am going to display all vb files except AssemblyInfo.vb and files whose starting letters are frm(ex. frmReport.vb).
My partial code is
Private Sub BrowseButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BrowseButton.Click
If FolderBrowserDialog1.ShowDialog() = Windows.Forms.DialogResult.OK Then
DirectoryTextBox.Text = FolderBrowserDialog1.SelectedPath
[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.
I am having a hard time displaying the contents of a text file that i read into an array. I read the text of the text file into an array but then i need to display it but i can't seem to get it. I also need to create a criteria to match whatever letter is entered into the textbox and display the contents of the file only beginning with that letter. I know i have to use a substring to read only the first letter but I can't even display the contents of the file from out of the array. Here is what i have so far.
Dim sr As IO.StreamReader = IO.File.OpenText("CRAYONS.TXT")
Dim color(50) As String
Dim arrynum As Integer
[Code].....
I've got an array of type double with about 30 entries(numbers) in it.I need to multiply them all together. Sort of like "=product(A1:A30)" in Excel (formula).
View 1 RepliesWhat is the best way to print contents of an array?[code]...
Is there a way to have a loop that finds the columns and then prints the contents?
I'm a sorta newcomer to visual basic and programming in general and I'm having a hell of a time trying to figure out how to put a listbox into an array. And just so we don't make any assumptions yes this is for school and no I'm not looking for anyone to do my homework for me. I just need some direction on how to do this step so I can make progress.
Anyway, the program is a data of students and I gotta do the code for alphabetically sorting by last name in ascending and descending order. I have to make it so whenever the A-Z button is pressed it will sort whatever is in the listbox, be it 1 record or all.[code]...
Am 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.
Private Sub btnclick_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnclick.Click
Call Clearlist()
[Code]....
I need some help displaying the contents of a cell in excel into a combo box. I've been able to display if the contents of excel are numbers but can't seem to figure out how to display text.
View 1 RepliesI got 2 Forms. Form1 has a textbox1 & a button1, which when clicked takes you to Form2. Form2 has a Button2.The user types some text into textbox1 & clicks button1.I would like to display the contents of textbox1 on Button2 in Form2.
View 6 RepliesI need to add the contents (integers) of two textboxes and display the result in a label. I've been trying like this within a button click event:
Private
Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
TextBox1.Text + TextBox2.Text = Label.Text
End Sub
But it doesn't compile, and I dont know why. I've used arithmetic operators before, but now I'm just confused.
I'm working on a program that has to get a set of images and then scan them to find pixels that match colors in an color array. Anyway I think I got everything working but how to load the images in as bitmaps. See the images are dynamic, they change there filenames so I can't call them with a static call like Dim bmp2 As New Bitmap("c:button.gif").
So I am using a loop to feed the images into an array for bitmap but thats not working, anyway that I can do this as, right now the program gets all the filenames for the images from a text file that is sent in to us. All I need to do is have the program check each image for pixels that match our color list. But I cant get the images into the bitmap array.
I am having a hell of a time figuring out where I am going wrong in copying the contents of arrays to listboxes.
I am using textboxes to input team numbers and team names.
The code for that is as follows (used in a button after the data has been entered in the text boxes:
Teamname, Teamnumber and numteams have been previously declared as public variables (string,integer and integer) in a module as they are used throughout the project. Numteams has had a value ascribed to it in a previous form
ReDim Teamname(Numteams)
ReDim Teamnumber(Numteams)
Dim thisteam As Integer
[Code]....
I have had to put in the "" for the Teamname variable as otherwise I was getting an error saying "Value cannot be null". I am also not sure what is causing that.
When I do that, I get 0 in the listboxes for all the teamnumbers except the last one which is right and blank strings for the team names except for the last one which is also right.
I'm trying to teach myself arrays as I have not extensively worked them. So I thought of a basic program to hash the contents of an array and list the output of the array word next to the hash value of it.
[Code]...
I have this:
Dim split As String() = temp_string.Split(",")
''#feed all info into global variables
patient_id = split(0)
doc_name = split(1)
lot__no = split(2)
patient_name = split(3)
How do I clear all the contents of split() ?
