VB.NET: backspace button code?

korndevil666

hello.

i have written a calculator program in VB.net as im still new and working things out i have a tiny problem. i have 10 buttons zero to nine, a decimal button, plus button, equals button, textbox display, reset button and a backspace button.

ive done everything except the backspace button. (say if i click a wrong number, i want to go back and click a different 1) but i have no idea what the code is and how i do it.

thanks, help apprechiated :)

albertw

Quote:

Originally Posted by korndevil666

hello.

i have written a calculator program in VB.net as im still new and working things out i have a tiny problem. i have 10 buttons zero to nine, a decimal button, plus button, equals button, textbox display, reset button and a backspace button.

ive done everything except the backspace button. (say if i click a wrong number, i want to go back and click a different 1) but i have no idea what the code is and how i do it.

thanks, help apprechiated :)

hi

backspace is same as Chr(8)

korndevil666

Quote:

Originally Posted by albertw

hi

backspace is same as Chr(8)

okay thanks. but what is the code for the button?, havent used chr before

albertw

Quote:

Originally Posted by korndevil666

okay thanks. but what is the code for the button?, havent used chr before

hi
you can use the _keydown method

Expand|Select|Wrap|Line Numbers

 
Private Sub AnObject_KeyDown(KeyCode As Integer, Shift As Integer)

If KeyCode = vbKeyBack Then

.. enter your code here ...

End If 

End Sub

or the _keypress method

Expand|Select|Wrap|Line Numbers

 
Private Sub AnObject_KeyPress(KeyAscii As Integer)

If KeyAscii = 8 Then

.. enter your code here ...

End If

End Sub

korndevil666

Quote:

Originally Posted by albertw

hi
you can use the _keydown method

Expand|Select|Wrap|Line Numbers

 
Private Sub AnObject_KeyDown(KeyCode As Integer, Shift As Integer)

If KeyCode = vbKeyBack Then

.. enter your code here ...

End If 

End Sub

or the _keypress method

Expand|Select|Wrap|Line Numbers

 
Private Sub AnObject_KeyPress(KeyAscii As Integer)

If KeyAscii = 8 Then

.. enter your code here ...

End If

End Sub

ohh, yeah it works, thats alot for your help :)

gbubeshattur

Hi .. all..
i am working on login page in maa project using vb.net.
in that after enterring the username if i press the enter i need that control should pass to the submit buton ..can any one give me the code plz
thanks in advance
tq

salgaonkarayush

Private Sub txtUser_KeyPress(KeyAscii As Integer)
If KeyAscii < 48 Or KeyAscii > 122 Then
txtUser.Text = ""
MsgBox "Enter only alphabets", vbOKOnly
KeyAscii = 8
ElseIf KeyAscii = 58 Or KeyAscii = 63 Or KeyAscii = 59 Or KeyAscii = 60 Or KeyAscii = 61 Or KeyAscii = 62 Then
txtUser.Text = ""
MsgBox "Enter only alphabets", vbOKOnly
KeyAscii = 8
End If
i want 2 make my backspace key work normally wat code should i modify or any better way 2 proceed

salgaonkarayush

can u reply the inner code 4 this 2
Private Sub AnObject_KeyPress(KeyAscii As Integer)
If KeyAscii = 8 Then
.. enter your code here ...
End If
End Sub

hectorhoney

Quote:

Originally Posted by korndevil666

ohh, yeah it works, thats alot for your help :)

hi i am reading your problem ........
you can make one button in the code view and change name=bbackspace then its text property backspace.in property window.....now clicked backspace button
AND USE FOLLOWING CODE
Private Sub bbackspace_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bbackspace.Click
Dim d As New Integer

If (TextBox1.Text.Length > 0) Then
d = TextBox1.Text.Length
TextBox1.Text = TextBox1.Text.Remove(d - 1, 1)

End If

End Sub

VB.NET: backspace button code?

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re: VB.NET: backspace button code?

re: VB.NET: backspace button code?

re: VB.NET: backspace button code?

re: VB.NET: backspace button code?

re: VB.NET: backspace button code?

re: VB.NET: backspace button code?

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