How can i add an array on names in a list box And be able to add and delet name in a listbox ps sence i just fond out .net cant mke control array ill use listbox with an array of names in it
View 2 RepliesI am trying to get the list of all the SQL Server names. Using the below code I got the name, but actually my server name is OWNER8SQLEXPRESS and I am getting only OWNER8. How I will get the full name.
vb.net
Private Sub frmGetServerName_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim dT As DataTable = Sql.SqlDataSourceEnumerator.Instance.GetDataSources()
DataGridView1.DataSource = dT
End Sub
The code I have is:
vb.net
Dim zipFiles(0) As String
Dim x = 0
[code].....
I have a button ad a list box, the button when clicked lets the user select a directory on the HDD, and then the app is meant to list all the sub directory's of that folder int he list box. However I cant seem to get it to list just the sub directory names, not the full paths, and also to only scan by 1 folder deep (selected foldersub folder).
View 1 RepliesI'm having some trouble with list boxes at the moment. I need a list box to display the names of directories that are in certain a folder. How can I do this?
View 3 RepliesI am trying to create the following program Store in a 1d array a set of 5 place names and in a 2d array the distances between the places. Ensure that the order of the places is the same in both arrays. When the names are places are input the distance between them is displayed. If they are not both in the table a suitable message is displayed
Dim town(1 To 5) As String
Dim Dist(1 To 5, 1 To 5) As Integer
Dim First As Integer
[CODE]......................
I think the best way forward is pass a parameter to the function findnumber.
I am used to C like languages such as C#. I added a list box with a list of names. In the code behind I added the below code. When I run the code I am getting the MessageBox but it will state "UserName favorite color is " but does not show the color. I thought it might be misspelled or non-matching names but this is not the issue due to the names being correct.
Public Class Form1
Private Sub lstData_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstData.SelectedIndexChanged
'Declare Variables
[CODE]...
I have a program that will compare an array of grocery list items glist and an array of coupon item clist.When I compare the two and if there is a match somewhere in the array I want to have a picturebox visible.When there is no match, I want the picture box not to be visible. [code] The code seems to work great until I come to the else statement.When the code finds a match it displays the picture box and the msgbox without error, but as soon as the message box is cleared, even though i've input it as an ELSE statement, the picturebox goes false again.Does anyone have any idea of how I can "hold" the picturebox to stay visible while the match between the arrays exists?
View 18 RepliesI have an array of filenames, and an array of files in a directory. I use a for loop in a for loop to check if those files are in that directory. Look at the below code to illustrate my problem. [code]
View 8 RepliesI used an array for collecting data throughout my program. With "Redim Preserve" I increase the size along the way. However I understand that this method is not really efficient and recommended is to use: List
So I tried (simplified here):
[Code]...
But the line: "ExtInfo(indx).Done = True" produces an error: "Expression is a value and therefore cannot be the target of an assignment."Clearly I don't understand fully the concept of "List(Of T)"...
new to Arrays/List and not sure how to use them properly
Dim deck() As String = {"Ac", "Kc", "Qc", "Jc", "Tc", "9c", "8c", "7c", "6c", "5c", "4c", "3c", "2c", "As", "Ks", "Qs", "Js", "Ts", "9s", "8s", "7s", "6s", "5s", "4s", "3s", "2s", "Ad", "Kd", "Qd", "Jd", "Td", "9d", "8d", "7d", "6d", "5d", "4d", "3d", "2d", "Ah", "Kh",
[code].....
I am working on a Card game, and i have a little question. I want to put all the cards in a array or list. The problem is that the list need to be shuffled/randomised. But it should also be able to shrink. Witch of those 2 is better to use? And how can i shuffle them?
View 7 RepliesIs it possible to have a two-dimensional array/list/collection such as the following. The first dimension is to have 2 elements, 0 and 1. The second dimension I would like to be able to have a different number of elements for each of the elements in the first dimension. To explain better, I'd like X in array (0, X) to go up to say 4 and Y in array(1, Y) to only go up to say 2.
So there would be:
array(0,0)
array(0,1)
array(0,2)
array(0,3)
array(0,4)
array(1,0)
array(1,1)
array(1,2)
But no array(1,3) or array(1,4).
I'd also need to be able to use Redim Preserve to increase the size of the second dimension for each of the first dimension's elements.
i read data from a textfile into a one dimensional array (string()) and refer to that later on to build a new list with just the lines i want. using chartData as New List (of String) I can load the List collection just fine. Now, I want to send the output to a table so I can bind it to a datagrid. using Split and AddRange breaks the one dimensional data up into new rows but I want this sort of thing:
"Row0 Cell0"->"Row0 Cell1 "->"Row0 Cell3";<line break>
"Row1 Cell0""Row1 Cell1"Row1 Cell3;<line break>
Note I provided for characters that can be used in a split function (-> and vbTab), which works, but the split in the List gives me a one dimensional array.
I have an array of integers (5 x 5). Is it possible for an index to have a a list of numbers?For example, Row3, Column 4 has 10, 4 52,10 Array (3,4) = 10,4,52,10
View 4 RepliesI have this .txt file with 5 lines, let's say:
I
Have
An
Easy
Question
If I wanted to add those lines to an array list position, how would I do that?
I have seen and used Text.split with a single delimiter such as " ",-","-".". However I cannot find a method which allows multiple delimiters. I need to be able to split a richTextBox's text into an array list.
View 14 RepliesI am using the following to poulate a list box with the file names in a certain directory...lstImages.DataSource = IO.Directory.GetFiles("C:UsersLBDesktopSTRImagesPumps")This works, and does populate the list box, but it shows the full path on each line...
View 2 Replieshow to list names from a file, as you enter (spell) the name. eg if you enter 'b' all 'b' names will appear. If you next enter 'e' then all 'be' names will appear. repeating this until the last letters are entered. eg 'bell' will show all names starting with 'bell'. You can then select from the list the correct name?
View 2 RepliesI'm having problems regarding using arrays on object names. for example, i have a textbox named txtBox1.text and a array declared as a(2). I what to transfer the value of the textbox to the array using loop.[code]
View 2 RepliesWhat i'm trying to do is to open a dialog box which from there i will be able to select files and their names will go into an array.
View 7 RepliesSo in my Textbox I have a list of (folder) names, such as:
Folder1
Folder2
Folder3
I want to compare THAT list to another folder somewhere in someones documents (no specific folder). So let's say we compare it to the 'Arts' folder, which contain these folders inside:
Folder1
Folder2
I want to put all of those folder names in the Art folder into a list. And then I want to compare the folder names in my Textbox to the folder names in the Arts folder, and Folder3 is missing in the Art folder, so I want the textbox to contain:
Folder3
...to tell you that you are missing Folder 3 in your Art folder.
I am using VB.NET in VS 2008 Professional. I wish to have my user select the server where the SQL Database resides. I can get a list of the SQL databases, but I am stuck on how to display the servers currently available to the user? I want to add the list of servers available into a list box and have them select the server.
The thing I am trying to duplicate is the drop down list of server names when you are doing an Add Connection from the Data Connections node of the Server Explorer.
For my assignment i need to list all the objects and their names. Surely i can get a list because typing out 150 names seems a bit ?
View 7 RepliesI am trying to find out if an instance of an application (not vb.net) is already running - because I will want to start it but I don't want to start it if it is already running. I have found a solution to check if a process is running:
Dim proc As Integer = Process.GetProcessesByName(ProcessName).GetUpperBound(0) + 1
and return True if >=1 (or just the process number). My problem is, this is a third-party application, and its process name is not just a name but it contains a version number (which I may not know at run time), and it also seems to add a *32 (so probably a *64 if it is installed in x64 ?).
I need to get a list of running processes, by name, and test if "processname" is a substring of the name.
But I haven't been successful in getting a list of names, only process id's.
I have a table in a Access Database that I'm loading into a VB.NET program and I want a way to get the name of each of the columns into a list of Strings. Googling has shown that this is much easier with a SQL database, but that doing so in Access is much more difficult. I came across this question Is there a query that will return all of the column names in a Microsoft Access table? Which gives a way to do it, but when I try the code it just populates my list with a bunch of "System.Collections.Generic.List'1[System.String]"
This is my adapted code.
Public Function GetColumns(ByRef database As String, ByRef table_name As String, ByRef columns As List(Of String)) As Integer
Dim com As OleDbConnection
Try
com = New OleDbConnection(database)
com.Open()
[Code] .....
My for each loop isn't printing the right string. Should be Console.WriteLine(holding)
I want to populate my combobox with the list of banknames available in my database.. I tried doing so but I am getting a blank list. i.e.. shows no value in combobox!
Here is what I tried...
Private Sub ComboBox4_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox4.SelectedIndexChanged
Try
'MsgBox("Open")
cn = New OleDbConnection("Provider=microsoft.jet.oledb.4.0;Data Source=E:\Project-Hemtech\HemDatabase1.mdb;")
[Code] .....
I have the need in my program to get the list of user logon names in a group. This is what I have so far but it only returns all the users...which I need cut down to those in a group, of which i have the name of.
Option Explicit On
Imports System.DirectoryServices
Imports System.DirectoryServices.ActiveDirectory
[code]....
I have a list of File_Name, File_Date.
I need to check this list sometimes against a file name and sometimes against both a filename and a file date.
I've been doing a for each loop and checking each value, I've tried a hash table keyed on file_name which is much faster, however I also need to check to see if the file_name and File_Date combination exist.
Is it possible to have a list that I can do a quick search on using either the filename or both the filename and filedate.
What I am trying to do is search through a list of file names looking for files with the same File name the following code is run from a button on the form The code seem to work ok up to the Array the line marked with ### is the line that the code stops at run time.
[code]...