Using Textboxes For The Variables?
Nov 25, 2009formula for compound intrest is P(1+r)n Iwould like to know what function procedure would i use to calculae this formula.I am using textboxes for the variables.
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Set The Three Textboxes Text To Different Variables Using Only One Line Of Code?
Dec 18, 20101) Lets say I have three textboxes: TextBox1 TextBox2 and TextBox3.
Public Sub loopthing (ByVal input1, ByVal input2, ByVal input3)
For i = 1 To 3
TextBox(i).Text = input(i)[code]....
I know that the (i)-thing will not work, but my question is if it's possible somehow to set the three textboxes text to different variables using only one line of code (Like my attempt above).
2)How can I do so that when I click a tabpage on runtime, a certain textbox is highlighted and ready to write without a mouse-click?
I've tried the tabpage's GotFocus- and Enter-events, and writing
TextBox1.Select()
there, but it only works the first time I enter that spesific tabpage.
3) - Moved To Its Own Thread In Application Deployment
VB 2008 Receive 4 Character Variables (0-255) All The Time And Put Them In The Corresponding Textboxes?
Nov 21, 2011I Have a problem whit my code.I want to receive 4 character variables (0-255) all the time and put them in the corresponding textboxes:
Public Class Form1
'Dim WithEvents Comm1 As New IO.Ports.SerialPort
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Comm1.Encoding = System.Text.Encoding.GetEncoding("Windows-1252")
[code]....
I Want to send date when I want , but I want to receive data all the time (i want that textboxes 3,4,5,6 to update whenever data is comming an form is load).
VS 2008 - Control Types - Textboxes And Richtextboxes - Isolate The Textboxes Only
Oct 14, 2011On my form, i've got some textboxes and some richtextboxes. I'm using the following code, to search through the text properties of each of the two types of control. see below:-
For Each ctl As Control In Me.Controls
If ctl.Text = "7777" Then
ctl.Text = "found the sevens"
End If
Next
What i'd like to do is isolate the textboxes only, is there a way to do that? I tried this but i got an error:-
For Each box As TextBox In Me.Controls
If box.Text = "7777" Then
box.Text = "Found"
End If
Next
Pull Information From A Websight's Textboxes In IE Into Program Textboxes?
Oct 21, 2010My goal is to, Pull information from a websight's textboxes in IE into my program textboxes. and to later Put changes from into other values on the websight from my program into it. The sight has multiple textboxes, on different frames. within it.I need to keep it as a exsiting open browser instead of making a new one. only gotten as far as finding the open internet explorer window, by useing
[Code]...
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
[code].....
Form With 4 Textboxes. The Textboxes Are Multiline?
Apr 29, 2010I have a Form with 4 Textboxes. The Textboxes are multiline. To write the contents of the 4 textboxes, I did the following.
[Code]...
How do I read to or populate the Textboxes using StreamReader or StringReader or other means?
15 Textboxes Want To Use 5 Only?
Mar 31, 2012I have 15 textboxes i want to put 5 random numbers from 1 to 48 in 5 of this textboxes.
my CODE:
Dim lstInt As New List(Of Integer)
Dim lstTB As New List(Of TextBox)
Dim rndm As New Random
[Code].....
AM I DOING SOMETHING WRONG THERE error message what i get is this: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
Add Several Textboxes To One Row In Gridview .net?
Jul 28, 2011My problem is that I have a gridview with five rows and an unknow number of columns. What I want to do is in row 1 I want each column to be a textbox and in the next row create a button/link to create a report for each column. My problem is only the last column is being changed to a textbox. Here is my code.
[Code]...
Add Values In Textboxes?
Aug 20, 2009I try to calculate some values that I have stored in textboxes..I made 2 variables as double and tried theese two lines of code.
View 2 RepliesAdd Values To SQL From 4 Textboxes?
Mar 16, 2011Im just wondering if some one can take a look at my insert statement, as is not working,
Im trying to add values to SQL from 4 textboxes. Public Sub Insert(ByVal textbox3, ByVal textbox4, ByVal textbox5, ByVal textbox6)
Dim conn As New SqlConnection
Dim comm As New SqlCommand
conn = New SqlConnection("Server=Scott-VaioSQLSERVER;Database=Testing;Trusted_Connection=True;")
conn.Open()
[Code]...
Asp.net - Iterate Through Textboxes In VB Web App?
Aug 15, 2011I have a VB Web Application with a bunch of textboxes on it in Default.aspx (Using the basic template in Visual Web Designer 2010 Express). I'd like to iterate through those textboxes using some sort of VB solution if at all possible and clear them when the user presses a button. I've tried using something like this:
Dim cControl As Control
For Each cControl in Me.Controls
If cControl Is TextBox Then
[Code].....
Clear All Textboxes Except Three?
Nov 29, 2011I want to have a button that clears all textboxes except three. This code I got so far which clears all the textboxes except 1
[code]....
Clearing All Textboxes But One?
Nov 14, 2009I have three textboxes and a button. The button's role is to clear all the textboxes. This one textbox that I don't want to clear keeps clearing. What do I have to do for this one textbox to not clear up when the clear button is pressed ?
View 2 RepliesColors Into TextBoxes?
Nov 26, 2009I got hold of this code to give RGB components of a pixel in a
PictureBox(picPic): Code:Dim pnt As Point = New Point(txtXpos.Text, txtYpos.Text) Dim RGBstring As String = ((TryCast(picPic.Image, Bitmap)).GetPixel(pnt.X,
[code]....
Create XML From TextBoxes?
Jan 3, 2009I am trying to build an XML file using textboxes that users can enter and then hit a button which will generate the XML file.[cod]e...
View 15 RepliesFunction For Many Textboxes
Jun 2, 2010Hello,
So I'm trying to create a function that will remove certain characters (defined by me and may be subject to change later) from a string leaving only numbers. Reason-being is I have some textboxes that I format as phone, SSN, and accounts numbers based on string length, and when I click or tab back into the textbox I need to make sure those formatting characters get removed so when I re-exit the textbox the proper formatting takes place. I am able to accomplish it by calling CleanUp(), below,
Public Sub CleanUp()
TextBox1.Text = TextBox1.Text.Replace(")", "")
TextBox1.Text = TextBox1.Text.Replace("(", "")
TextBox1.Text = TextBox1.Text.Replace("-", "")
TextBox1.Text = TextBox1.Text.Replace(" ", "")
TextBox1.Text = TextBox1.Text.Replace("$", "")
End Sub
but the problem I have it this obviously only works for Textbox1, not any textbox I want to apply it to. I want to be able to call CleanUp() from textbox1.gotfocus, textbox2.gotfocus, textbox3.gotfocus, etc... .
I've tried
Dim Box as Textbox = Textbox.text
Box = Box.Replace(")", "")
Box = Box.Replace("(", "")
Box = Box.Replace("-", "")
Box = Box.Replace(" ", "")
Box = Box.Replace("$", "")
but get the error "Reference to a non-shared member requires an object reference" (blue squiggly under "Textbox.Text" (VB 2010 Express) which I can't seem to find anything relevant to this by searching for that error.
Thanks for your help.
Getting Values From Textboxes?
Mar 15, 2012how to INSERT FROM in vb.net if you are getting values from textboxes?
View 2 RepliesHow Many Numbers Are In Textboxes
Jan 22, 2010i have 20 textboxes and i want in to see in a label how many numbers are in the textboxes (because some of them are empty) not the addition just how many textboxes have numbers.
View 37 RepliesHow To Organize Textboxes
Sep 14, 2011A form has 10 textboxes,The form receives data,based on the data received some texboxes are visible or not with the .Visible Property. lets say for example, 5 textboxes are invisible, the other 5 textboxes will be visible and there will be some space between textboxes and it will look weird.for example in this image:I want to organize the remaining textboxes, so it would look like this:
which textboxes are visible or not can vary, it could be the first, second or fifth, or the last four, etc. So, how can i organize the remaining visible textboxes?
Inserting From Textboxes In VB
Jun 22, 2010Here's the code:
CODE:
I'm getting the error: Syntax error in INSERT INTO statement.
Replace With Textboxes?
Oct 26, 2009Here is the code that I currently have:
Public Class Form1
Private TextBoxes As New List(Of String)
Private CurrentTextbox As Integer
[code]....
Selection Between Textboxes?
Feb 22, 2012I have 3 textboxes TextBox1, TextBox2, TextBox3 and a button, I want to do the followingIf I enter a value in TexBox1 and press the button, some text will be set in textbox2 and textbox3; if I enter a value in TextBox2 and press the button, some data will be displayed in TextBox1 and TextBox3.I have no idea how to make the code check if the textbox1 value is not null and the textbox2 value is null, to execute a certain statement and set a value to Textbox2 and textbox3; and if the value of Textbox2 value is null and the textbox2 value is not null, to excecute a certain statement and set a value to Textbox1 and textbox3
View 1 RepliesSql Data Into Textboxes?
Aug 4, 2010I have a Sql table that has 3 columns and 3 records:
Firstname LastName SSN
joe smith ****
Kim smith ****
henry smith ****
I would like to put these records into textboxes. How would I do this? I tried Binding it, but it only does the first record.
Sub To Clear All Textboxes Value ?
May 22, 2012Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) _
Handles Button1.Click
EmptyTextBoxValues(Me)
End Sub
[CODE]...
This sub is for to clear all textboxes value, i just need to know how did it work ?