String.Substring() Does not exist error

[Duncan Allen]

Hi,

Using C# I'm trying to use the substring method of a string variable but it
just generates an "error: 'variable.Substring' does not exist " exception -
how do I fix this ?

code example:

string creationDateStr = string.Empty;
string anotherStr = "";
creationDateStr = "some string or other";
anotherStr = creationDateStr.Substring(0,2);

This compiles but errors at run time.

Thanks,

[interwanderer]

you have to make sure that there is something in your string variable.

if len(creationdatestr) > 2 then
creationdatestr.substring(0,2)
else
messagebox.show("string not long enough")
end if

this is vb syntax... I'm sure you can change it to c# ;-)

"Duncan Allen" wrote:

Hi,

Using C# I'm trying to use the substring method of a string variable but it
just generates an "error: 'variable.Substring' does not exist " exception -
how do I fix this ?

code example:

string creationDateStr = string.Empty;
string anotherStr = "";
creationDateStr = "some string or other";
anotherStr = creationDateStr.Substring(0,2);

This compiles but errors at run time.

Thanks,

[Duncan Allen]

Thanks, but the string variables are populated and still no joy.

"interwanderer" wrote:

you have to make sure that there is something in your string variable.

if len(creationdatestr) > 2 then
creationdatestr.substring(0,2)
else
messagebox.show("string not long enough")
end if

this is vb syntax... I'm sure you can change it to c# ;-)

"Duncan Allen" wrote:

Hi,

Using C# I'm trying to use the substring method of a string variable but it
just generates an "error: 'variable.Substring' does not exist " exception -
how do I fix this ?

code example:

string creationDateStr = string.Empty;
string anotherStr = "";
creationDateStr = "some string or other";
anotherStr = creationDateStr.Substring(0,2);

This compiles but errors at run time.

Thanks,

[interwanderer]

use one of the following functions. left, right or mid.

"Duncan Allen" wrote:

Thanks, but the string variables are populated and still no joy.

"interwanderer" wrote:

you have to make sure that there is something in your string variable.

if len(creationdatestr) > 2 then
creationdatestr.substring(0,2)
else
messagebox.show("string not long enough")
end if

this is vb syntax... I'm sure you can change it to c# ;-)

"Duncan Allen" wrote:

Hi,

Using C# I'm trying to use the substring method of a string variable but it
just generates an "error: 'variable.Substring' does not exist " exception -
how do I fix this ?

code example:

string creationDateStr = string.Empty;
string anotherStr = "";
creationDateStr = "some string or other";
anotherStr = creationDateStr.Substring(0,2);

This compiles but errors at run time.

Thanks,

[Fitim Skenderi]

I have had no problems with your code (although I am still using VS2005 Beta
2). It returs "so" all the time.

Fitim Skenderi

"interwanderer" <in***********@discussions.microsoft.com> wrote in message
news:92**********************************@microsof t.com...

use one of the following functions. left, right or mid.

"Duncan Allen" wrote:

Thanks, but the string variables are populated and still no joy.

"interwanderer" wrote:

>
> you have to make sure that there is something in your string variable.
>
> if len(creationdatestr) > 2 then
> creationdatestr.substring(0,2)
> else
> messagebox.show("string not long enough")
> end if
>
> this is vb syntax... I'm sure you can change it to c# ;-)
>
> "Duncan Allen" wrote:
>
> > Hi,
> >
> > Using C# I'm trying to use the substring method of a string variable
> > but it
> > just generates an "error: 'variable.Substring' does not exist "
> > exception -
> > how do I fix this ?
> >
> > code example:
> >
> > string creationDateStr = string.Empty;
> > string anotherStr = "";
> > creationDateStr = "some string or other";
> > anotherStr = creationDateStr.Substring(0,2);
> >
> > This compiles but errors at run time.
> >
> > Thanks,
> >
> >
> >
> >
> >
> >
> >

[Duncan Allen]

C# doesn't seem to have Left, right or mid ......

"interwanderer" wrote:

use one of the following functions. left, right or mid.

"Duncan Allen" wrote:

Thanks, but the string variables are populated and still no joy.

"interwanderer" wrote:

you have to make sure that there is something in your string variable.

if len(creationdatestr) > 2 then
creationdatestr.substring(0,2)
else
messagebox.show("string not long enough")
end if

this is vb syntax... I'm sure you can change it to c# ;-)

"Duncan Allen" wrote:

> Hi,
>
> Using C# I'm trying to use the substring method of a string variable but it
> just generates an "error: 'variable.Substring' does not exist " exception -
> how do I fix this ?
>
> code example:
>
> string creationDateStr = string.Empty;
> string anotherStr = "";
> creationDateStr = "some string or other";
> anotherStr = creationDateStr.Substring(0,2);
>
> This compiles but errors at run time.
>
> Thanks,
>
>
>
>
>
>
>

[Cor Ligthert [MVP]]

Interwander,

if len(creationdatestr) > 2 then
creationdatestr.substring(0,2)
else
messagebox.show("string not long enough")
end if

this is vb syntax... I'm sure you can change it to c# ;-)

You can but is is a little bit without sense

Cor

[Cor Ligthert [MVP]]

Duncan,

In my opinion should your code run, is it not something around that.

Cor

"Duncan Allen" <Du*********@discussions.microsoft.com> schreef in bericht
news:6F**********************************@microsof t.com...

Hi,

Using C# I'm trying to use the substring method of a string variable but
it
just generates an "error: 'variable.Substring' does not exist "
exception -
how do I fix this ?

code example:

string creationDateStr = string.Empty;
string anotherStr = "";
creationDateStr = "some string or other";
anotherStr = creationDateStr.Substring(0,2);

This compiles but errors at run time.

Thanks,

[interwanderer]

maybe not standard but you can import a namespace that does

in C# it is USE i think?

use Microsoft.VisualBasic

Strings.Left(str, Length)

.....
click yes if this post was helpfull :-D
"Duncan Allen" wrote:

C# doesn't seem to have Left, right or mid ......

"interwanderer" wrote:

use one of the following functions. left, right or mid.

"Duncan Allen" wrote:

Thanks, but the string variables are populated and still no joy.

"interwanderer" wrote:

>
> you have to make sure that there is something in your string variable.
>
> if len(creationdatestr) > 2 then
> creationdatestr.substring(0,2)
> else
> messagebox.show("string not long enough")
> end if
>
> this is vb syntax... I'm sure you can change it to c# ;-)
>
> "Duncan Allen" wrote:
>
> > Hi,
> >
> > Using C# I'm trying to use the substring method of a string variable but it
> > just generates an "error: 'variable.Substring' does not exist " exception -
> > how do I fix this ?
> >
> > code example:
> >
> > string creationDateStr = string.Empty;
> > string anotherStr = "";
> > creationDateStr = "some string or other";
> > anotherStr = creationDateStr.Substring(0,2);
> >
> > This compiles but errors at run time.
> >
> > Thanks,
> >
> >
> >
> >
> >
> >
> >

[Cor Ligthert [MVP]]

Duncan,

The Left, Right, and Mid are just a part of the Visual Basic namespace the
same as other namespace that you use in C#.

However, if it is only for this it has very few sense. (It has inbuild
checking if by instand the second parameter of a substring is not going
outside the string length and make that second parameter than accoording the
length)

However that is not in this case.

I hope that this gives an idea.

Cor

[Duncan Allen]

OK, analysed the problem a bit more and basically no string object is being
treated as an object - so maybe I need to re-register something .... ?

Stuff like ...

myArray[0].ToUpper();
or even myString.ToString()

doesn't work either .....

"Cor Ligthert [MVP]" wrote:

Duncan,

In my opinion should your code run, is it not something around that.

Cor

"Duncan Allen" <Du*********@discussions.microsoft.com> schreef in bericht
news:6F**********************************@microsof t.com...

Hi,

Using C# I'm trying to use the substring method of a string variable but
it
just generates an "error: 'variable.Substring' does not exist "
exception -
how do I fix this ?

code example:

string creationDateStr = string.Empty;
string anotherStr = "";
creationDateStr = "some string or other";
anotherStr = creationDateStr.Substring(0,2);

This compiles but errors at run time.

Thanks,

[Jon Skeet [C# MVP]]

Duncan Allen <Du*********@discussions.microsoft.com> wrote:

Using C# I'm trying to use the substring method of a string variable but it
just generates an "error: 'variable.Substring' does not exist " exception -
how do I fix this ?

code example:

string creationDateStr = string.Empty;
string anotherStr = "";
creationDateStr = "some string or other";
anotherStr = creationDateStr.Substring(0,2);

This compiles but errors at run time.

Could you post a short but complete program which demonstrates the
problem?

See http://www.pobox.com/~skeet/csharp/complete.html for details of
what I mean by that.

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

[Cor Ligthert [MVP]]

Jon,

Duncan gave his own answer on the last line to me.

Cor

[skeet]

Cor Ligthert [MVP] wrote:

Duncan gave his own answer on the last line to me.

But not in a way which really shows the root of the problem. There's
clearly something wrong in how his variables are being set up in the
first place - and a short but complete program would demonstrate that.

Jon

[JasonS]

On Wed, 23 Nov 2005 06:59:09 -0800, Duncan Allen wrote:

Hi,

Using C# I'm trying to use the substring method of a string variable but it
just generates an "error: 'variable.Substring' does not exist " exception -
how do I fix this ?

code example:

string creationDateStr = string.Empty;
string anotherStr = "";
creationDateStr = "some string or other";
anotherStr = creationDateStr.Substring(0,2);

This compiles but errors at run time.

Thanks,

Check in your references that you haven't removed 'System', as this is
responsible for providing the base object types such as String.
Also, check that 'Imported Namespaces' also has a reference to System.

Cheers,
Jason

[Jon Skeet [C# MVP]]

JasonS <ga****@sobell.net> wrote:

<snip>

Check in your references that you haven't removed 'System', as this is
responsible for providing the base object types such as String.
Also, check that 'Imported Namespaces' also has a reference to System.

Slight correction - the System assembly doesn't contain System.String -
mscorlib does.

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