switch keyword...

[Colin Basterfield]

Hi,

Coming back to C# after a foray back into Delphi 7, and I wanted to use the
switch keyword to do the following:

switch (pwdChar)
{
case "a".."z":
case "A".."Z":
case "0".."9":
// do something
// break
default : break;
}

But it doesn't recognize that a..z means any letter between a and z, is this
possible?

TIA
Colin

[Jason Newell]

Colin,
I don't think switch\case will do that for you. You might take a look at the RegEx class.

You might look at these functions too.

char.IsLetter();
char.IsNumber();
char.IsUpper();
char.IsLower();

Jason Newell, MCAD
Software Engineer

Colin Basterfield wrote:

Hi,

Coming back to C# after a foray back into Delphi 7, and I wanted to use the
switch keyword to do the following:

switch (pwdChar)
{
case "a".."z":
case "A".."Z":
case "0".."9":
// do something
// break
default : break;
}

But it doesn't recognize that a..z means any letter between a and z, is this
possible?

TIA
Colin

[Octavio Hernandez]

Colin,

a) There are no subranges in C#. You'll have to list explicitly all cases or
use nested if statements instead of the switch.
b) Careful! You've writtten "a", "z", etc. (string literals), and you
probably meant 'a', 'z', etc.(char literals). They're not the same thing.

Regards,

Octavio

"Colin Basterfield" <co**************@hotmail.com> escribió en el mensaje
news:%2****************@TK2MSFTNGP15.phx.gbl...

Hi,

Coming back to C# after a foray back into Delphi 7, and I wanted to use
the switch keyword to do the following:

switch (pwdChar)
{
case "a".."z":
case "A".."Z":
case "0".."9":
// do something
// break
default : break;
}

But it doesn't recognize that a..z means any letter between a and z, is
this possible?

TIA
Colin

[Colin Basterfield]

Hi,

I also see Char.IsLetterOrDigit is a valid function, that looks useful,
thanks for the pointer, no not ^! :-)

Cheers
Colin
"Jason Newell" <no****@nospam.com> wrote in message
news:OZ**************@TK2MSFTNGP10.phx.gbl...

Colin,
I don't think switch\case will do that for you. You might take a look at
the RegEx class.

You might look at these functions too.

char.IsLetter();
char.IsNumber();
char.IsUpper();
char.IsLower();

Jason Newell, MCAD
Software Engineer

Colin Basterfield wrote:

Hi,

Coming back to C# after a foray back into Delphi 7, and I wanted to use
the switch keyword to do the following:

switch (pwdChar)
{
case "a".."z":
case "A".."Z":
case "0".."9":
// do something
// break
default : break;
}

But it doesn't recognize that a..z means any letter between a and z, is
this possible?

TIA
Colin

[Colin Basterfield]

Hi,

That makes sense, see my other reply, but thanks for differentiating the "
against the ', I hadn't realised that, it is iall these little things that
make these languages so much fun ay? :-)

Cheers
Colin

"Octavio Hernandez" <do****@danysoft.com> wrote in message
news:eX**************@TK2MSFTNGP09.phx.gbl...

Colin,

a) There are no subranges in C#. You'll have to list explicitly all cases
or use nested if statements instead of the switch.
b) Careful! You've writtten "a", "z", etc. (string literals), and you
probably meant 'a', 'z', etc.(char literals). They're not the same thing.

Regards,

Octavio

"Colin Basterfield" <co**************@hotmail.com> escribió en el mensaje
news:%2****************@TK2MSFTNGP15.phx.gbl...

Hi,

Coming back to C# after a foray back into Delphi 7, and I wanted to use
the switch keyword to do the following:

switch (pwdChar)
{
case "a".."z":
case "A".."Z":
case "0".."9":
// do something
// break
default : break;
}

But it doesn't recognize that a..z means any letter between a and z, is
this possible?

TIA
Colin