Is Backspace Considered Character

Oct 18, 2010

You need to test for the backspace character, and if it's there, fix up the input.Maybe something like this:

If Right$(TxtQP.Text, 1) = vbBs Then
TxtQP = Left$(TxtQP, len(TxtQP)-1)
End If

Or is the backspace not showing up in the string, but as the input character kicking off your procedure?

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Remove One Character From From One Textbox With Backspace?

May 20, 2012

Private Sub txtInput_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtInput.KeyPress
Dim len As Integer

[Code].....

i want to delete "b" from first textbox and i should delete "King" from second textbox the length of each word is same "Acer" "King" it is always 4 in length

but i am getting following error

"Index and count must refer to a location within the string. Parameter name: count"

i also tried by replacing "len-4" by another variable dim c as integer=len-4

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Possible To Remove A Character From Textbox When Backspace Event Happens?

Nov 8, 2009

[code]The RichTextBox's text would act as if the user pressed backspace while typing in the TextBox.How is it possible to remove a character from the textbox when the backspace event happens?

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[2008] Keypress Backspace - Msgbox When User Press 'backspace' In The Textbox

Feb 28, 2009

I want to have a msgbox when user press 'backspace' in the textbox.

I wrote this:

Private Sub TextBox2_KeyPress(ByVal KeyAscii As Integer)

If KeyAscii = 8 Then
MsgBox("backspace")
End If

End Sub

Why it doesn't work?

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Using Modules In .NET Considered?

Jun 7, 2011

During the design of a new application I was wondering if using a module with properties is considered to be a bad practice. Some example code:

Module modSettings
public property Setting1 as string
public property DatabaseObject as IDatabaseObject
End Module

The code above is just an example to emphasize my question. In the past, this structure was used a lot in VB6. In the past I used it as well in my .NET projects.

But nowadays with buzzwords like Dependency Injection, Testability and Separation of Concerns the above structure smells bad. I can't really describe why, but it just feels wrong. I must admit I'm not very familiar with the keywords above, yet.So I'm wondering whether the above code really is a bad practice. If so, what would you use a Module for?

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What Would Be Considered A .NET Module In C#

Mar 16, 2011

VB.NET has classes and Modules, so my first question is what is the difference? Also, I noticed that C# does not have modules, but just classes, is there something in place of modules or were they removed for C#?

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VB Is Using Structures Considered Good Or Bad?

Oct 10, 2010

I use to use Structures quite a lot in the VB6 days, and try to avoid them now with .NET. Just wondering if using structures in 2010 instead of a Class is considered nasty?

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Which One Cannot Be Considered As A Counter Variable

Feb 15, 2012

which one cannot be considered as a counter variable?

counter = counter +1
counter = counter -1
counter = counter +3
counter = counter *2

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Is Using GoTo<label> ALWAYS Considered Bad Practice

Aug 23, 2011

I'm just wondering why using GoTo<label> is so frowned upon?I'm learning VB, and I want to develop good habits as I go. One thing I don't entirely understand, is why everyone avoids GoTo like its the plague (except in error handling...). I feel like GoTo could be useful in some situations.

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VS 2010 - Timer Event Is Not Considered

Nov 18, 2011

Why after you pressed the button Button1, this application crashes without considering the event timer1??
Public Class Form1
Public timer_event As Boolean
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
timer_event = False
Timer1.Interval = 3000 '3 sec
[Code] .....

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When Was Isnumeric Considered Legacy Code

Jan 3, 2012

When was isnumeric considered legacy code? I guess all that i have learned from my college class last semister is legacy.

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VS 2008 - Are Arrays Considered A Type Of Collection Like Lists

Mar 2, 2010

Ever since I started using VB.Net I have been using the Generic List collection List(Of <Type>). Arrays, I haven't used so much. I used them a lot more when I wrote C code years ago.

1.) Are arrays considered a type of collection like Lists, Dictionary, Queue etc are? Or are they in their own category.

2.) Can I iterate over an array with a For Each loop like I can with other collections or do I stick with the normal For loop for arrays?

3.) There are certain methods that return arrays. Can I set a list object to hold this return value instead of an array?

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Calculate Characters In One Row On Special Defined Numeric Value To Each Character Or Group Of Character?

Aug 25, 2011

How do I write an expression to calculate all characters of each row by my own defined value to each character = all the A and B and C and etc. will be as 2 and all I and J and whatever ... will be 1 so I need an end result of the total.

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MemoryStream Truncating Input - Replace All Instances Of A Certain Character With A Unicode Character?

Jul 10, 2009

I am working on a sub that essentially needs to open a text file, and replace all instances of a certain character with a unicode character. I'm trying to do this by reading the original text file byte by byte, converting it to a character, and then either adding that character to a memory stream or writing the unicode character to the memory stream. Then I'm saving the memory stream to the original file.

[Code]...

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VS 2008 Random - New Character Out Of The String And Then Remove The Character From The List Of Characters

Dec 12, 2010

[Code]...

For each character of this string I want a new character out of the string and then remove the character from the list of characters that still maybe used for other characters. It may not get the same character, you could basically just call this encryption, but it's not what I am making. I don't want to waste my time doing this one hour while VB can do this for me in <1 second.

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ASP.NET: Backspace Key Behavior?

Jun 29, 2011

I'm writing an in-house intranet application in ASP.NET and VB.NET. My 'customers' are beginner to medium-level users. All of our browsers are IE8 and above, standard.The application works great, except for one thing. The backspace key. When a user types an invalid number into a textbox, a RegularExpressionValidator and ValidatorCalloutExtender fire off and notify the user. Perfect. Except that, when the user closes the popup warning and notices the cursor is still flashing in the textbox, he/she feels it's time to hit the backspace key and delete that pesky field value.

Unfortunately, the browser interprets this action as a desire to go 'back' into the page history. My boss is screaming. His bosses are screaming. I have a headache.So, how can I turn off this behavior? I still need the backspace to eliminate characters in the textbox, but nothing else. Company policy here: Backspace is to delete characters from the screen. Nothing more, nothing less.

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How To Disable Backspace In RTB

Jan 3, 2012

can i disable backspace in my keyboard in vb 2005.

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TRying To Replace One Specific Character Of String With New Character Entered By User

Feb 17, 2011

I am writing a hangman type game and I am displaying the word to the user in a label as all *'s, but I cannot figure out how to have just one of the *'s changed in the label to the correct letter when the user inputs the correct letter into the text box and clicks the check letter button.Everything else in the program works perfectly, except for this part.[code]When I use the .Replace it changes all of the *'s to the correct selected letter.

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Get Input String And Put Its Character Into List / And Replace Character With Other

Feb 16, 2012

the coding is to 'Get input string and put its character into List, and replace the character with other.'but having problem putting each character into List and also replacing it,[code]

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Read A Text File Character By Character Into A Database?

Nov 11, 2009

I want to read a text file(.txt) character by character into a database.There are 28 characters on each line and I want to read the first 16 into a column in a database and the rest in another column in the database.

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Treat Unicode Character Plus Diacritic As A Single Character?

Aug 23, 2010

In my VB.NET application I compare words that are recorded using IPA, many of which have many diacritic marks. In one of the comparisons, I compare the words character by character. But when I iterate over the characters, the diacritic marks come out as separate characters (as I would expect since this is unicode)However, a u character is different than a u plus an accent for the purposes of this program and needs to be distinguished.

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Creating A Backspace Key For A Calculator?

Dec 2, 2010

i am creating a backspace key for a calculator. first of all a currency needs to be chosen by clicking a button, when for example the is clicked the text is entered into the texbox. But when i use the backspace it deletes here is my code..

Private Sub btn_pound_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_pound.Click
'Enable the keypad when the pound sign is clicked,Disable the curency buttons after'
pnl_numbers().Enabled = True[code]....

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.net - SendMessage (backspace) Not Working?

Feb 23, 2011

Private Const WM_KEYDOWN = &H100
Private Const WM_KEYUP = &H101
Private Const VK_BACKSPACE = &H8

[code].....

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Allow Only Numbers Backspace And - Sign?

Nov 28, 2009

I got this nice piece of code from someone on this forum which only allows user to input numbers or backspace i need to modify it to allow the - sign so user can input a negative number Can someone share with me the code to modify this

If Not Char.IsDigit(e.KeyChar) Then e.Handled = True
If e.KeyChar = Chr(8) Then e.Handled = False 'allow Backspace

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Backspace Function For Program?

May 14, 2009

I need a backspace function for my program .. Basically I have a textbox where I can put numbers .. what I want is when I press a button it deletes the last character of the textbox

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Exchange Backspace With Delete Key?

Jul 7, 2009

Is there any way to exchange backspace with delete key. I hav used this code in key_down event of rtb

if e.KeyCode = Keys.Back then
SendKeys.Send ("{DELETE}")
endif

but now it works as both backspace and delete.

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Represent Backspace In A String?

May 9, 2011

Below is the code I am using to restrict user from entering any other characters except for the predefined ones. But using my code I cannot hit backspace.

How to include backspace also ?

Dim s As String = "0123456789$"
If s.IndexOf(e.KeyChar) = -1 Then
e.Handled = True
End If

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Simulate Backspace In RichTextBox?

Nov 11, 2009

My problem is that I have this code to paste text from my Web Browser into a richtextbox, but when the text is pasted, a new line is started (as if the text pasted in was a string and then the "enter button was used") So if I consistantly paste in the word "code" for example, I would get[code]...

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Textbox Not Accepting Backspace Key

Aug 10, 2009

I have built an addin for outlook that has a usercontrol shimmed into the interface. Everything works wonderfully EXCEPT for one textbox on one subpanel of the control. I have tried everything I can think of, but have not been able to resolve the issue:

The textbox *(A regular System.Windows.Forms.Textbox) functions as you would expect in any application with one exception. It will NOT accept the backspace key. So much so that the KeyDown, KeyPress, KeyUp events will not even fire when I press the backspace key. There does not seem to be any parameter suppressing it, and the control has focus. What is even stranger is that it works completely fine if you hold down the shift key while pressing the backspace key.

[code]...

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Use Numeric Values Only But Also Allow The Backspace?

Mar 31, 2011

I am using Visual Basic Express 2008.I have added the following code to my text box:

Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
If Not IsNumeric(e.KeyChar) Then

[code]....

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