Get A List Of All Object Names In Program?
Apr 10, 2010For 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 ?
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Create A Form That Accepts Names (or Any Strings) As Input And Stores Them In A List Object?
Oct 6, 2010I'm trying to create a form that accepts names (or any strings) as input and stores them in a object. See attached form sample.Form Image:
Operations: ï Initially the NumericUpDown object on the form should be disabled.The user enters a value (string) in the textbox and clicks the Add button or presses the Enter key to activate that button.The application then stores that name in a List object, and displays the last entry in the Label underneath.The NumericUpDown should become enable after the first entry. The user should be able to move between all the values entered using NumericUpDown.
Find Index Of An Object From List In Program?
Oct 13, 2011Say I have a list and I have an object. I want to find the index of that object in the list.
View 1 RepliesList Of T Find Date Or Other Property In A Object In The List - Then Return Found Object?
Sep 3, 2009After reading all the examples for list of T exists and Find and find first, none show how to handle multi-property objects. Below is bare bones example maybe someone could flesh out to show how this should be done.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim DatePriceList As New List(Of DateAndPrice)
DatePriceList.Add(New DateAndPrice(Date.Parse("1/1/2000"), 10.12))
DatePriceList.Add(New DateAndPrice(Date.Parse("1/2/2000"), 11.12))
[Code]...
VB Code Case Statement - Added A List Box With A List Of Names
Jan 13, 2011I 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]...
Display A List (Of Object) Which Has Single Objects And Child List (Of Object)?
Sep 6, 2011Limited to using v2.0 of .Net framework (we use VB.net) due to environmental constraints on our servers.I've got an ASP.net webpage which pulls data from a webservice that performs checks on user accounts in active directory. Operators can check multiple accounts at one time using the web interface. The webservice returns a list(of AccountCheck) objects which themselves contain single properties like username, email address, and List(of AccountError) objects which contain multiple properties.[code]What I want to do is using some kind of repeater, create multiple panels or divs which contain labels showing the username, email etc, and a gridview which has the accounterror list bound to it to show all the errors. The users could be checking 2, 5, 7 accounts at once, and is dynamic.
View 2 RepliesCast A List Of Object To List Of Interface That Object Implements?
May 19, 2009I am working in VB.net and have a Class, Foo, that implements an interface, IBar.I have a List of Foo's, but I need to pass a list of IBar's into a function, but I keep getting casting errors, even when I use DirectCast.My code is [code]MainWorks works, but it would be really annoying and inefficient to have to do that everywhere I want to call this function.
View 4 RepliesArray With Object Names
Jan 30, 2010I'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 RepliesHow To Quickly Transform A List(Of Object) Into A List(Of "Object.field")
May 29, 2012Suppose I have a list of Cat.
Public Class Cat
Public Property id As Guid
Public Property name As String
Public Property race As catRace
End Class
How can I quickly transform this List(Of Cat) into a List(Of Guid) using the id property?
I could do :
Dim newList As List(Of Guid)
For each item in catList
newList.Add(item.id)
Next
But I think there must be a way to do this faster (1 LOC). I just can't find how.
Construct Object Names At Runtime?
Jul 15, 2011Is it possible to construct the name of an object (in this case, a Panel control) at runtime?
What I want to do is change the Backcolor of one Panel that is a member of about fifty panels. I can get the string of the name from the Sender in a RadioButton CheckedChanged event. So what I want to do is something like:
PanelName = sender.parent.name & ".BackColor"
PanelName = Color.Red
(I realize that the syntax above is invalid. I'm just using it to try to get the idea across.)
I can do what I need with big, fifty-element Select Case blocks, but the code is so repetitive that I was hoping there was a more elegant way.
Using Variables Inside Object Names?
Oct 6, 2008This is my first post here at Xtreme VB Talk. I just started programming 2 semesters ago. I am currently working on a program but I am having a little trouble with the length. I am trying to take the integer entered in a text box and using it inside the name of another object.
[Code]...
VS 2008 Using Variables In Object Names?
Jun 18, 2009project i'm working on for school. Need to make a grade calculator thing but I'm trying to make my code more efficient.
This is what I have at the moment:
txtID.Text = ListBox1.SelectedIndex
txtFname.Text = namesarr(ListBox1.SelectedIndex, 0)
[code].....
File Names In A List Box?
Sep 23, 2009I 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 RepliesList Names From A File?
Feb 14, 2011how 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 RepliesAccess Objects By Using Their Names As A String, Instead Of A Object?
Mar 15, 2012I don't know if I explained this in my title, this is what i want to do. (In VB on a active server page) I have 5 buttons called but1.....but2. Right now I have the following code to make them invisible
but1.Visible=false;
but2.Visible=false;
but3.Visible=false;
but4.Visible=false;
but5.Visible=false,
Is there a way to access the objects by using a string, example
for(i=i;i<6;i++
items("but"+str(i)).visible=false
Use Retrieved Table Values As Object Names?
May 2, 2012I've Created a Table in my Database "T_OPTIONS"
my table looks like this.[code]...
VS 2008 Display All The Property Names Of This Object?
Jul 18, 2009I am trying to view all the properties of this:
Dim IISOBJ = GetObject("IIS://LocalHost/W3SVC/1")
For the life of me I can't figure out how to display all the property names of this object.
VS 2008 Field Names Of A SqlDataReader Object?
Mar 2, 2010I want to write a routine that loads a table (or query) and outputs it to a text file, with the field names in the first row.If I load the data via an adaptor class into a datatable, I can access the field names by something like DataTab.Columns(i).ColumnName.
As I only want to read the data from the table, using SqlDataReader would be more efficient. But how can I then find what the header or column names are? The following code fails with a message that the SqlDataReader class does not have a member called 'Columns ':
Dim sqlCmd As SqlClient.SqlCommand = New SqlCommand(SQL, Connection)
Connection.Open()
Dim Reader As SqlClient.SqlDataReader = sqlCmd.ExecuteReader()
Dim FName0 As String = Reader.Columns(0).ColumnName() '<==FAILS
Is there a way to find the column names of an SqlDataReader object?
Compare List To File Names?
Jan 12, 2011So 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.
Display A List Of Server Names?
Apr 11, 2009I 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.
Get List Of Process Names Running?
Jun 15, 2012I 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.
How To Get Clean List Of All Column Names From MDB
Jun 16, 2011I 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)
How To Populate ComboBox With List Of Names In DB
Nov 7, 2011I 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] .....
LDAP : Getting A List Of Logon Names?
Dec 8, 2009I 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]....
Search List Of Names And Dates?
Feb 2, 2012I 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.
Search Through A List Of File Names?
Apr 10, 2009What 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]...
VS 2008 Add An Array On Names In A List Box?
Jun 28, 2010How 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 RepliesVS 2008 List Of All The SQL Server Names?
Feb 18, 2010I 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
VS 2010 Write Names From A List Box?
Jun 11, 2011I am trying to write names from a list box and it works apart from the first listbox item.So this doesn't work:
My.Computer.FileSystem.RenameFile("D:Renaming2.avi", TextBox4.Text & " " & "1" & " " & "-" & " " & ListBox1.Items(0))
But this does:
MessageBox.Show(ListBox1.Items(0))
So listbox1.items(0) does exist but I just get the error that there are illegal characters in the path.
Asp.net - Iterate Through Custom Object's Property Names And Values
Sep 1, 2009I'm trying to create an export Excel/CSV function that will iterate through a custom object and first output the property names and then output the values. I want to use reflection only where necessary so I'm attempting to save the property names when I output the headers and then reuse them to print the values. Is this possible? I'm a little weary of using reflection in a loop but is there a better way?
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