Variable does not exist - but does?

[tshad]

Using VS 2005:

Here is a piece of code that is saying that a variable doesn't exist which
obviously does:

public string UpdateTables(TableFieldList tableFields,
UnmappedNamesCollection unmappedNames, DataView dv)
{
bool newSection = false;
bool parameterExists = false; <---- Here is defined
foreignKeys = new ForeignKeyCollection();

using (conn = new SqlConnection(ConnectString))
{
try
{
conn.Open();

foreach (TableField tf in tableFields)
{
parameterExists = false; <--------
Error
....

The error is:

The name 'parameterExists' does not exist in the current context

How can that be?

It is global for the function so how can that error be there?

Is the "using" causing a problem?

Or am I just having a brain fade here?

Thanks,

Tom

[Peter Duniho]

On Sun, 01 Jun 2008 16:33:37 -0700, tshad <ts***@dslextreme.comwrote:

[...]
The error is:

The name 'parameterExists' does not exist in the current context

How can that be?

Surely the fraction of code that you posted is not exactly the same as the
code actually suffering the error.

If you can post a concise-but-complete code sample that demonstrates the
error, it's probably possible to point out the problem. Otherwise, I
don't think so.

If I had to guess, I'd guess typo somewhere, either in the declaration or
the use. Much less likely (but still possible) is the possibility that
you're coding in Unicode and managed to get a typographically aliased
character into the variable name. Suffice to say, if the name as used was
actually exactly the same as the name as declared, and the structure of
the code was exactly as you've posted here, you wouldn't be getting the
compiler error.

Pete

[=?Utf-8?B?VGFyaXEgQWJkdWwgS2FyaW0=?=]

I did not find any problem in the given piece of code. However since you are
having a compile-time error, I can reduce the area of investigation by
assuring you that "using" construct does not change the scope or life of a
variable. It is similar to other language structures as foreach or while
loop. Thus if you could paste the complete code, probably we could help you
better.
--
Tariq Abdul Karim

http://tariqkarim.blogspot.com/
"tshad" wrote:

Using VS 2005:

Here is a piece of code that is saying that a variable doesn't exist which
obviously does:

public string UpdateTables(TableFieldList tableFields,
UnmappedNamesCollection unmappedNames, DataView dv)
{
bool newSection = false;
bool parameterExists = false; <---- Here is defined
foreignKeys = new ForeignKeyCollection();

using (conn = new SqlConnection(ConnectString))
{
try
{
conn.Open();

foreach (TableField tf in tableFields)
{
parameterExists = false; <--------
Error
....

The error is:

The name 'parameterExists' does not exist in the current context

How can that be?

It is global for the function so how can that error be there?

Is the "using" causing a problem?

Or am I just having a brain fade here?

Thanks,

Tom

[tshad]

"Tariq Abdul Karim" <Ta*************@discussions.microsoft.comwrote in
message news:2A**********************************@microsof t.com...

>I did not find any problem in the given piece of code. However since you
are
having a compile-time error, I can reduce the area of investigation by
assuring you that "using" construct does not change the scope or life of a
variable. It is similar to other language structures as foreach or while
loop. Thus if you could paste the complete code, probably we could help
you
better.

Well, it is working now and I don't know why.

I did comment it out to get it to build, which it did and when I came back
to copy it to paste in the code here, I uncommented it and it worked fine.

So I don't know what was causing it, but it works now.

Thanks,

Tom

--
Tariq Abdul Karim

http://tariqkarim.blogspot.com/
"tshad" wrote:

>Using VS 2005:

Here is a piece of code that is saying that a variable doesn't exist
which
obviously does:

public string UpdateTables(TableFieldList tableFields,
UnmappedNamesCollection unmappedNames, DataView dv)
{
bool newSection = false;
bool parameterExists = false; <---- Here is
defined
foreignKeys = new ForeignKeyCollection();

using (conn = new SqlConnection(ConnectString))
{
try
{
conn.Open();

foreach (TableField tf in tableFields)
{
parameterExists = false; <--------
Error
....

The error is:

The name 'parameterExists' does not exist in the current context

How can that be?

It is global for the function so how can that error be there?

Is the "using" causing a problem?

Or am I just having a brain fade here?

Thanks,

Tom