Give Different Variables In Strings?
Mar 9, 2011I need to create a variable which can symbols for only "1, 2, 3, 4, 5, 6, 7, 8 or 9 " so that I can use to check for a certain text.[code]...
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Give A Value To Multiple Variables?
Aug 12, 2009Is there a way to give a value to multiple variables (integers in this case), instead of all at once?
For instance, I have Dim aceVal, twoVal, threeVal, fourVal, fiveVal, sixVal, sevenVal, eightVal, nineVal, tenVal As Integer and, pending listbox selection, I'd like to assign threeVal fourVal and sixVal all values of -1.
ToString Format Strings Give Enum Value Was Out Of Legal Range?
Sep 15, 2010In the past I've been able to pass a format string to the tostring method.It's not working any more Here's an example from my Watch window:
1.1.tostring String
1.1.tostring("0.00") {"Enum value was out of legal range."} System.ArgumentOutOfRangeException
[code]......
Add 2 Strings Variables
Jul 14, 2011I used to add 2 strings variables and it works but when I tried using VB2008 it didn't work. [code]
View 9 RepliesHow To Create Variables From Strings In ArcObjects
Jun 30, 2010If I have a list box or something that has a list of like 4 years (like 2006 through 2009), how do I programmatically make variables of these years with names like pTable2006, pTable2007, etc (as ITable of course). If this isn't possible and I have publicly declared these tables in the declarations (like pTable2006 as ITable, pTable2007 as ITable, etc), how can I programmatically assign these variables based on user choice?
What I'm asking is, if the user wants to choose years 2006 and 2007, how can I write this:
pTable & ListBox.Items.Item(0) = [table path string] & ListBox.Items.Item(0)
(please ignore the syntax of the "listbox", I'm just trying to come up with an example)
Whenever I put something like pTable & "string", I get an error.
Windows System Variables In Strings
Jun 6, 2009How would I use a system variable such as %userprofile% in a string in VB.net? I have this in my program, but calling the system variable directly isn't working
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Passing Multiple Variables/strings To Background Worker?
Aug 26, 2011I need to pass two variables/strings to a background worker at the same time. he background worker needs to return the first variable, and the time consuming boolean result of the second variable.From what I have read, I can only pass an object that contains multiple variables.This is where I get confused
View 1 Replies2008 - If > Statement - Does It Matter That Variables Are Marked As Strings Vs Integers
Feb 9, 2009I have a "if This > That then" statement, that doesn't seem to work, as it triggers regardless that "This" is smaller than "that". Does it matter that these variables are marked as strings vs integers?
View 8 RepliesChopping Up DatabasTable Values Text(30) To Multiple Strings Variables?
Mar 9, 2012Anyone know right off hand a cleaver way to chop up a Text value from a table... Scenerio is this I have one table with a name (Smith, Timmy Alan) in a table text(30) format. I can pull the value to a string in VB but I want to only take the last name for one string and the first for an other string.
View 4 RepliesWay To Concatenate List Of Strings Into A Comma-separated Strings, Where Strings Are Members Of An Object?
Oct 16, 2009Say I have a List(Of Tag) with Tag being an object. One member of Tag, Tag.Description, is a string, and I want to make a comma-separated concatenation of the Description members.Is there an easier way to do this than to read the Description members into a List(Of String) and then use the Join function?
View 2 RepliesVS 2008 Send An Object Instead Of Strings Which Includes Multiple Unsigned Integers And Strings
Aug 13, 2009I am working on a UDP Client/Server, and currently i have them sending back and forth strings, which i convert to bytes, and then open the bytes to read. I want to now send an Object instead of those strings, which includes multiple unsigned integers and strings.
View 39 RepliesPrepend A String To All Strings In A List Of Strings?
Aug 5, 2010I have a list of strings. For each string in that list, I want to prepend another string. I wrote a method to do it, but I was wondering if there was something already in .NET I could use to do this. It seems like something that could be built in, but I was not able to find anything.
Here is the method I wrote:
Private Function PrependToAllInList(ByRef inputList As List(Of String), ByRef prependString As String) As List(Of String)
Dim returnList As List(Of String) = New List(Of String)
For Each inputString As String In inputList
returnList.Add(String.Format("{0}{1}", prependString, inputString))
[code].....
It works, but I would rather use built in functions whenever possible.
VS 2008 Using List Of Strings Or Array Of Strings?
Oct 16, 2009I'm migrating from VB6 to VB.NET, in hence my questions below:
I have to write a function that returns array of strings.
How can I initiate it to empty array? I need it since I have to check if it's empty array after it returns from this function.
Is list of arrays better for this purpose? If I use a list - Is it empty when it firstly defined? How can I check it it's empty?
VS 2008 - Take A String Of Variables With A Common Delimiter And Break It All Back Out Into Separate Variables
Dec 11, 2011Last year (2010) I came across a FANTASTIC command that allowed me to take a string of variables with a common delimiter and break it all back out into separate variables (possibly an array) with one statement.
[Code]...
As long as the delimiter was a unique specifiable character, this one-statement command could break it out into elements. my memory and point me in the right direction.
Passing Multiple Byref Variables / Variables Fail To Change Calling Funct W/ Invoke
Sep 27, 2010I have code, shown below, that works all except for 1 thing: The variables being passed byRef get passed, but once modified in the else section of the "if me.invokerequired" code of RecordData, the variables are never updated in the calling function. To reiterate, the calling function does not receive the updated data that is in the variables custid and amt.When debugging, I see the data change in the else section of "if me.invokerequired", but once it returns from the callback the data is missing.[code]
View 15 RepliesDefine Some Global Variables Of A Class - Variables Occupy Memory?
Mar 23, 2012I define some global variables of a class as follows:
Private Class MyClass
Private var1 as Decimal
Private list1 as List(Of string)[code].....
But I found that after this form is closed, all above variables, var1, list1, list2 still exist in memory. I thought they should be collected by gc since the form is already disposed as I confirmed.
Add: I have monitored half an hour after the form is closed. But these variables are not collected by gc. I have an automatic update procedure on the form which uses above variables.Since the above variables still hold values, the automatic update procedure is always called which causes exception. (One quick fix is to check if form.isDisposed in update procedure. But I do not think this is elegeant. Besides, these variables occupy memory.)
Memory Used In Declaring Variables Are Reclaimed By The OS When These Variables Go Out Of Scope?
Jan 7, 2010Does the memory used in declaring variables are reclaimed by the OS when these variables go out of scope?Does the memory used be released by setting thier value to nothing? if not, then how can I force the garbage collector to run or excecute at a certain/desired time..How about in Windows Forms..How can we make sure that the memory used in initializing and showing forms be released if those forms were closed?
View 13 RepliesMultithreading: Reading/setting Variables, And Passing Variables?
Mar 8, 2011Question 1: What is the difference between "Background Worker" and "Worker Pool" as indicated within the MSDN samples provided.
Question 2: I noticed while using, AddressOf _Function_, variables cannot be passed; what would be an efficient solution to this?
Question 3: While using multithreading is it required to invoke before setting variables, or only form properties?
Question 4: While using System.Net.Sockets is it safe/efficient to use Application.DoEvents while waiting for new data; or would be using a Do While loop be fine without DoEvents since the action would be multithreaded? Note: there can be up to 2000-3000 sockets in use at a time.
Use Variables Or Properties, And Global Or Static Variables In A Class?
Jun 9, 2012I'm new in .NET programming.I have a class Form1 that includes Button1_Click event.Button1_Click creates a multiple Text Boxies at run time)Here is the class:
Public Class Form1
Dim shiftDown As Integer
Dim counter As Integer
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Find Strings Inside Strings?
Aug 15, 2011I have been looking for examples to find the string between two strings. This top one works fine;
Public Sub ReadData(ByRef keywordStart As String, ByRef keywordEnd As String, ByVal filename As String)
Using reader = New StreamReader(filename)
[Code].....
Now the first one is fine - Ext_Volume is result of the string between the strings <Volume> and </Volume>. <Volume> and </Volume> are unique so this is straight forward.
However the second one - "^FDExp:" is unique, but "^FS" is not unique. There are occurances of "^FS" before and after "^FDExp:".
How do I get the string to search AFTER the occurrence, not before etc?
How To Extract The Strings Out Of An Array Of Strings
Jun 24, 2011Dim str As String
Dim str2 As Array
str = "blabla duhduh"
str2 = str.Split(" ")
Use Regular Expression To Get Strings Between 2 Strings?
Apr 6, 2012Say the string is something like
bla bla bla bla (cat) bladfdskdfd dsgdsdksf (dog)
dfdshfdskdskfsdfkhsdf sdkfhdsfkdf (kathy) fdsfhdskfhdsfkd (doggy)
I want a generic.list (of string) containing
cat
dog
kathy
doggy
How to do that with regular expression in vb.net
Later I want to do something more complicated like getting all strings between "url":" and ", from this strings
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VS 2010 Finding Strings Within Strings?
Jan 8, 2012Is there an easy way to find a certain string within a string and then return the strings that you find as an array?I have written this:
Public Function FindStrings(ByVal strSourceString As String, ByVal strStartString As String, ByVal strEndString As String) As String()
Dim StringStartposition As Integer
Dim StringEndPosition As Integer
Dim Currentposition As Integer = 1
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VS 2010 Separate Strings Into Other Strings?
Jan 16, 2011I have this string called time. It's value is in this format: HH:MM:SS The numbers change, but the format stays the same. I want to separtate the code into 3 strings Hour, Minutes, Seconds.
View 2 RepliesDataGridView - Convert Nulls To Empty Strings And Display It In The Grid As Empty Strings
May 14, 2009I have a DataGridView that has some columns with dates. It binds to an in-memory Datatable which gets loaded from an string array of data passed back from the backend Some of the rows returned have nulls for the date columns. Solution 1: If I define the Date column in the DataTable as "string" I can easily convert those nulls to empty strings and display it in the grid as empty strings (desired results). However, if the user clicks on the date column header to sort by date, it doesn't order the rows as you want. You get a purely string sort order. Not acceptable
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Give An App Its Own Sandbox?
Jan 11, 2010How can I make my program operate in a sandbox for security? I am using Visual Basic 2008 Express.
View 6 RepliesHow To Give A Header
Oct 15, 2009i am new to this forum, hope u people will help me out.i need to add header to a text file which is created using my code.
View 4 RepliesHow To Give A Thread A Name
Jul 23, 2011I have a question. I'm using visual studio 2010 and I am making a windows application and I set the framework for the app to .net 3.5..I have some threads in my app and when I run it on my output screen it says: ' The thread '<no name>' (0x***) has exited with code 0 (0x0).Does anyone know how to change the '<no name>' ? MatthiWare N°1 .NET Freeware & Shareware site! Title: Project leader, Owner @ MatthiWare Current project: MW Virtual Desktop Contact: Admin@matthiware.net.ms Website: MatthiWare " MatthiWare... What else?!? "
View 2 RepliesApp Freezes When Should Give Error
Aug 24, 2009I have a datagridview which fetches data from a local SQL server. Now, I have a setting called My.Settings.database_url which indicates the hostname of the SQL server.
Now, the problem is that if the host name is incorrect, instead of getting an error, the app just freezes. So what must I change in order to fix that?[code]...
Give A Message As Modal?
Jun 23, 2011Sometimes the app is working in a long time process, and I wnat to tell the user something like "Wait a moment, please"
I though to use a modal form but if I show this form, the process I said is not initiated.
How can I give this kind of messages?