How To Create Variables Dynamically
May 4, 2012
I want to monitor more than 10 folders on different machines by using SysTemFileWatcher. I create a class called Watcher for doing monitoring. So, for each folder I have to call that class once with a new thread. I want to name each thread with its own name like: T1, T2, T3 ... for easier controlling them. It is not nice if I declare each thread like:
Dim T1 as Thread =new Thread(Address of Watcher.StartWatcher)
Dim T2 as Thread =new Thread(Address of Watcher.StartWatcher)
...
Dim T18 as Thread =new Thread(Address of Watcher.StartWatcher)
How can I declare thread names dynamically with the names just like that. I have tried to use Thread array() but it doesn't work.
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Dec 10, 2009
Is it at all possible to declare variables dynamically? Something like Dim Answers & i As ArrayList. What I'm trying to achieve is putting one or more answers to a question into an array. Or should I really be looking at a mult-dimensional array to store the question number and answer? How would I add to and access a multi-dimentional array? Anyway, here's the section of code:[code].......
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Jun 20, 2009
I need to assign variables dynamically in a loop. In php you would use curly brackets but this doesn't work in vb.
Dim i As Integer
For i = 1 To 12
lblMonth{i}.text = 'whatever
Next
Anyone know how I can escape the the i variable so it becomes part of the string that precededs it?
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Mar 10, 2012
This seems basic but here's my problem. I am trying to build my connect string as a public variable that will connect to either an express version of SQL Server or a non-express version. The app.config defines it as being express or not and is modified to the user's choosing when it is deployed using the a firstRun routine.
The problem is that even though I'm modifying the value of the variable SQLexpress when the app is initiated which in turn should modify the value of the variable g_strConnectionString it doesn't. The value of g_strConnectionString will always take on the initial value of SQLexpress. I know I can define 2 separate variables for the connection string but I'd prefer not to have to change all of the references throughout each of the various programs in this system as they all have the same issue.
So in the following load event I've traced it and when it sets globals.SQLexpress = "", I then look at the value of g_strConnectionString and it still contains "SQLEXPRESS". It seems I need to somehow force vb to refresh this variable after it's been changed.
[Code]...
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Feb 26, 2011
I have a script where I make separate routines with identical code
Example:
sub AddToA {
ATotal += 1
}
sub AddToB {
BTotal += 1
[Code]...
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Aug 11, 2011
We have these xml formatted .config files that come with all our ASP.NET programs. Well they have keys that need to be populated and I am unable to understand how to create a variable in xml and use it. The articles on variables in xml all seem to be talking about some other type of variable than I am familiar with. I am used to working in C or other programming languages.
I want to do something like
MyVariable = "SomeString"
<add key="Key1" value=MyVariable>
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Mar 20, 2010
I need to dynamically create textbox. This is my code, but with this I create only one textbox:
Public Sub CreateTextBox()
Dim I As Integer
Dim niz As Array
[Code]....
So how i can dynamically create textbox?
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Oct 30, 2009
I would like to create a folder dynamically in vb.net.I know System.IO.Directory.CreateDirectory("c:NewFolder") would create folder in the directory but I want folder to be created in the application and visible on my web page.its like when I say create album ..I should be able to create a folder with album name on it.
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Feb 3, 2010
I want to create a form dynamically.I have a section on the form that has 3 combobox and 2 buttons. What I want is when the user clicks on the '+' button it add another 3 combobox and 2 buttons below the first, and so on and so on. Also when the user clicks the '-' button I want to remove the row of 3 combobox etc.
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Jun 5, 2011
I want to create labels dynamiclly (at run time) when user clicks one its click events will excute I want like this : for i as integer=1 to 10 step 1
'' here label creation
end for
[code].....
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Aug 30, 2010
I have created a function that uses the Mailto: vb control, It Works like this: SendEmail("Address@address.com, "subject", "Mail body.")The email address subject are all created dynamicly,and my function works fine when testing.
however, I want to dynamicly create the button and dont know how to make it call a function with params on click, Here is what im trying: Private Sub Form2_load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]...
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Nov 23, 2010
I have a form with a textbox to enter a number and a button called "Create". When a user enters a number and clicks create the form gets populated with the number of buttons entered in the textbox and the title of the buttons are labeled by consecutive numbers. For example if you enter 5 the form will populate with 5 buttons labeled button1, button2, ...button5. When you click on these newly created buttons a messagebox will popup stating the buttons name. Basically I need to know how to create events and populate them with code I guess dynamically.
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Sep 17, 2011
I have a form that I am adding a set of buttons to. I am adding an event to those buttons. I need this event to function slightly to determine what button was pressed.I need the button to simply set a string variable equal to the clicked buttons text so I can determine what button was pressed.How can this be accomplished?
''
'Adding the buttons
''
For Each dr In dtMenus
Dim strMenuName As String
[code]....
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Nov 15, 2011
Is it possible to dynaically create table name in MS Access:
Below is my CODE:
strSQL = "CREATE TABLE" + Me.Text + "( ID Counter," & _
"Name TEXT(50) NOT NULL," & _
"PRIMARY KEY(ID) )"
But, I am getting a run time error that syntax is wrong.
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Mar 11, 2010
[code] .i am using oracle as database. i want to create table at run time that will remains in database to store info permanatly later.
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Dec 15, 2009
Is it possible to dynamically create properties, something like this method in a class:
public sub addproperty(byval property_name as String)
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Sep 9, 2009
I have a page where the page loads with the code as shown below. Pretty much every other sub on the page uses the variables gFilename, gPicType and gPicPath. In every other routine I have to go through the process of recreating gPicPath (as per the if/then block in the code). How do I create these variables ONCE, and then store them so that all the other subs can access them?
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
' check to see if this is the first time the page is loaded.
If IsPostBack = False Then
[code]....
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Jul 12, 2010
I am looking to create a function in which I can pass in an integer (count) and create an amount of picturebox's based on the count.For example if I pass in an integer count, it should do this, only I don't know the correct syntax for it.[code]I am making a huge list of pictureboxes that will scroll on a form, 5 showing at a time.Also, if there are a huge amount of pictureboxes, will I be better off keeping like 7 pictureboxes on the form and keep rotating images throughout? Images are coming from a folderlist in a listbox (so I can easily pull the path of the image from an index).
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Dec 3, 2008
I need to create a label for every cell in excel that has a value depending on search criteria.Depending on what number is searched i need to display all cells in the row in different labels. There could be one label that needs to be created or many.Do i have to have each variable named differently or can i just use one label tag and give each label a different label.location = (x, y).
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Mar 22, 2012
I've a dropdownlist to start.
When the index change event of this first dropdownlist fires, I need a second dropdownlist (populated according the value of the first ddl).
It's ok to generate the second ddl but what about a third? I actually need it to be dynamically created (it should be able to create an infinite number of dropdownlist)
How can get the index change event of the 2nd dropdownlist, 3rd, 4th and so on?
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Jul 15, 2010
How dan I dynamically create some public properties on a custom webcontrol.
For example, web control has 5 TextBox controls. I need a public property for each TextBox control to be able to set a specific property of the TextBox control.
I want to be able to loop the controls in the webcontrol and create a public property for each TextBox control.
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Sep 1, 2010
i am trying to figure out how to go about creating dynamic checkboxes on my form when i do not know axacctly how many boxes i will need.The problem is that i do not know how to DIM more than one object. This is my code for creating one checkbox
Dim heckBox As New CheckBox()
Form1.Controls.Add(checkBox)
checkBox.Location = New Point(10, 10)
[code]....
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Aug 20, 2011
Is there a way to write an application in VB.NET that will create a Compact 3.5 database on my desktop and then fill it with data from a SQL 2000 database?
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Jun 11, 2009
How do you create an access database dynamically?
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Mar 22, 2012
I know how to create textbox dynamically but the problem now is that I want it below my previous created textbox[code]...
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Dec 31, 2011
A while back I asked a question on how to create EXEs at dynamically at runtime. This time, I wanted to know how to add code to your program dynamically at runtime too. Like if I had a textbox on a form, and I typed whatever code into it, then it would add the code to a subroutine and it would be executed. How can this be done?
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Feb 10, 2009
In my application developing using VB .Net, i want a create HTML elements dynamically. I want to create as given below ,
<div class="contact">
<dl class="user">
<dt>
[code]....
The above code works fine. Now how do i append a img element. Also how do i mention the class ?
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Jun 16, 2010
I want to create labels in my page dynamicly, for example the user will choose in a textbox the number of labels, and I will display the number of this label with .text = "XYZ".
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Mar 7, 2011
I need to create a pdf file dynamically in vb.net. It needs to contain several images and lines of text. I am using VS 2003, so whatever solution I use will need to be compatible with the .net 1.1 framework. The current method I am using is wpcubed, but this requires that all images be converted to bmp format before adding them to the pdf, which can be extremely slow when dealing with a large number of images.
I am aware that there are an awful lot of other 3rd party products that claim to do this, and I have had a search through them. But without registering, downloading, installing and writing code to use each of them in turn, it is very difficult to differentiate between them. So far I have looked into evo pdf and pdfsharp,tallcomponents, [URL] but none seem to work with .net 1.1. (Although they don't make this abundantly clear.)
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Apr 25, 2010
I have a table with fields player1Name,player2Name..etc. How does one create the field names dynamically. I tried this..doesn't work obviously.[code]....
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