How to convert this from vb to csharp

[Aaron Prohaska]

Can anyone tell me how I can convert the following code to csharp? I'm
having problems with this because it seems as though KeyChar.IsDigit
doesn't exist in csharp.

----------------------------------------------------
Private Overloads Sub TextBox1_TextChanged(ByVal sender As
System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs)
Handles TextBox1.KeyPress
Dim isKey As Boolean = e.KeyChar.IsDigit(e.KeyChar)
Dim isDecimal As Boolean = e.KeyChar.ToString = "."
If Not isKey And Not isDecimal Then
e.Handled = True
End If
End Sub
----------------------------------------------------

Regards,

Aaron Prohaska

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Wrench Science Inc.
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[Jon Skeet [C# MVP]]

Aaron Prohaska <NO***********@wrenchscience.com> wrote:

Can anyone tell me how I can convert the following code to csharp? I'm
having problems with this because it seems as though KeyChar.IsDigit
doesn't exist in csharp.

It's a static method in the Char class. It's an aberration (IMO) that
you can call it "on" a specific character in VB.NET. In C#, static
methods can't be called using references - they have to use the
typename (unless they're in the current class or an ancestor, of
course).

So, you'd have:

bool isKey = Char.IsDigit(e.KeyChar);
bool isDecimal = e.KeyChar.ToString()==".";

if (!isKey && !isDecimal)
{
e.Handled = true;
}

However, I'd write the isDecimal test as:

bool isDecimal = (e.KeyChar=='.');

or actually just inline both:

if (!Char.IsDigit(e.KeyChar) &&
e.KeyChar != '.'))
{
e.Handled = true;
}

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Jimi]

First, I changed one line to:
Dim isKey As Boolean = char.IsDigit(e.KeyChar)

Then I ran it through the Instant C# VB to C# converter:

//INSTANT C# TODO TASK: Insert the following converted event handlers
at the end of the 'InitializeComponent' method for forms or into a
constructor for other classes:
//TextBox1.KeyPress += new
System.Windows.Forms.KeyPressEventHandler(TextBox1 _TextChanged);

private void TextBox1_TextChanged(object sender,
System.Windows.Forms.KeyPressEventArgs e)
{
bool isKey = char.IsDigit(e.KeyChar);
bool isDecimal = (e.KeyChar.ToString() == ".");
if (! isKey & ! isDecimal)
{
e.Handled = true;
}
}