chr() .Net equivalent

[David Griffiths]

Hi all

I thought I would convert an old program to use just .net, removing the
Microsoft.Visual Basic namespace.

I seem to have succeeded except for just one are. What is the .net
equivalent to chr(). I am capturing the keyboard input and if it's a
carriage return I call the Caluculate Subroutine.

Private Sub txtVat_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtVat.KeyPress
If Not (Char.IsDigit(e.KeyChar) Or Char.IsControl(e.KeyChar) Or
e.KeyChar = dp) Then
e.Handled = True
End If

If e.KeyChar = Chr(13) Then
Call Calculate()
End If
End Sub

I have tried replacing the chr(13) with

If e.KeyChar = Environment.NewLine Then
Call Calculate()
End If

No joy. I'm sure there must be a way to do this in .net.

Help please. Thanks in advance

--
DaveG

[Armin Zingler]

"David Griffiths" <da*****@yahoo.nospam.co.ukschrieb

Hi all

I thought I would convert an old program to use just .net, removing
the Microsoft.Visual Basic namespace.

I seem to have succeeded except for just one are. What is the .net
equivalent to chr(). I am capturing the keyboard input and if it's a
carriage return I call the Caluculate Subroutine.

Private Sub txtVat_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtVat.KeyPress If
Not (Char.IsDigit(e.KeyChar) Or Char.IsControl(e.KeyChar) Or
e.KeyChar = dp) Then
e.Handled = True
End If

If e.KeyChar = Chr(13) Then
Call Calculate()
End If
End Sub

I have tried replacing the chr(13) with

If e.KeyChar = Environment.NewLine Then
Call Calculate()
End If

No joy. I'm sure there must be a way to do this in .net.

Microsoft.VisualBasic is part of .Net, so you can keep using Chr(). You
can also use vbCr constant. Or Controlchars.CR. Environment.NewLine is
CR+LF, therefore it does not work. You can also use
"Convert.ToChar(13)".

If you want to handle keys not chars, you should handle the KeyDown
event.
Armin

[Herfried K. Wagner [MVP]]

"Armin Zingler" <az*******@freenet.deschrieb:

Microsoft.VisualBasic is part of .Net, so you can keep using Chr(). You
can also use vbCr constant. Or Controlchars.CR. Environment.NewLine is
CR+LF, therefore it does not work. You can also use
"Convert.ToChar(13)".

I agree, but note that 'Convert.ToChar' is not known by the compiler and
thus the conversion is performed at runtime. If you are using 'ChrW' or
'ControlChars.CR' a char literal is stored in the IL.

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

[David Griffiths]

Thanks for all the input.

I managed to complete the project removing "VB namespace" I went with the
Convert.ToChar() solution.

I take onboard the arguments for keeping the VB namespace and will code
accordingly for the future.

--
DaveG

"David Griffiths" <da*****@yahoo.nospam.co.ukwrote in message
news:Qt*********************@telenor.com...

Hi all

I thought I would convert an old program to use just .net, removing the
Microsoft.Visual Basic namespace.

I seem to have succeeded except for just one are. What is the .net
equivalent to chr(). I am capturing the keyboard input and if it's a
carriage return I call the Caluculate Subroutine.

Private Sub txtVat_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtVat.KeyPress
If Not (Char.IsDigit(e.KeyChar) Or Char.IsControl(e.KeyChar) Or
e.KeyChar = dp) Then
e.Handled = True
End If

If e.KeyChar = Chr(13) Then
Call Calculate()
End If
End Sub

I have tried replacing the chr(13) with

If e.KeyChar = Environment.NewLine Then
Call Calculate()
End If

No joy. I'm sure there must be a way to do this in .net.

Help please. Thanks in advance

--
DaveG

[Bill McCarthy]

Hi Dave,

I tend to avoid the VB helper routines, but in this case I definitely favor
ChrW() as it is in fact compiled as a contant
"David Griffiths" <da*****@yahoo.nospam.co.ukwrote in message
news:YJ*********************@telenor.com...

Thanks for all the input.

I managed to complete the project removing "VB namespace" I went with the
Convert.ToChar() solution.

I take onboard the arguments for keeping the VB namespace and will code
accordingly for the future.

--
DaveG

"David Griffiths" <da*****@yahoo.nospam.co.ukwrote in message
news:Qt*********************@telenor.com...

>Hi all

I thought I would convert an old program to use just .net, removing the
Microsoft.Visual Basic namespace.

I seem to have succeeded except for just one are. What is the .net
equivalent to chr(). I am capturing the keyboard input and if it's a
carriage return I call the Caluculate Subroutine.

Private Sub txtVat_KeyPress(ByVal sender As Object, ByVal e As
System.Windows.Forms.KeyPressEventArgs) Handles txtVat.KeyPress
If Not (Char.IsDigit(e.KeyChar) Or Char.IsControl(e.KeyChar) Or
e.KeyChar = dp) Then
e.Handled = True
End If

If e.KeyChar = Chr(13) Then
Call Calculate()
End If
End Sub

I have tried replacing the chr(13) with

If e.KeyChar = Environment.NewLine Then
Call Calculate()
End If

No joy. I'm sure there must be a way to do this in .net.

Help please. Thanks in advance

--
DaveG