Help with c# variables

  • Thread starter Thread starter Lambert Symth
  • Start date Start date
L

Lambert Symth

How can i use a variable from within a different function in which it was
not set.
Like the example.

using System;

namespace test
{
class class1
{
static void Main()
{
string name = "bob";
start();
}

static void start()
{
Console.WriteLine(name);
}
}
}
 
Lambert Symth said:
How can i use a variable from within a different function in which it was
not set.
Like the example.

using System;

namespace test
{
class class1
{
static void Main()
{
string name = "bob";
start();
}

static void start()
{
Console.WriteLine(name);
}
}
}
Click to expand...

Currently the variable is a local variable - it's only available within
the method. You need to declare it as a static variable:

using System;

namespace test
{
class class1
{
static string name;

static void Main()
{
name = "bob";
start();
}

static void start()
{
Console.WriteLine(name);
}
}
}
 
You could pass it as a parameter like this

using System;

namespace test
{
class class1
{
static void Main()
{
string name = "bob";
start(name);
}

static void start(string name)
{
Console.WriteLine(name);
}
}
}
 
Lambert said:
How can i use a variable from within a different function in which it was
not set.
Like the example.

using System;

namespace test
{
class class1
{
Click to expand...

public string Name=string.empty;
 
John Bailo said:
public string Name=string.empty;
Click to expand...

That still won't compile (start is static) and even if it did, it would
print out an empty string rather than bob, as the local variable would
shadow the static/instance one.

In addition, your variable casing is somewhat odd (why change the OP's
variable name?) and variables shouldn't be public...
 
John Bailo said:
public string Name=string.empty;
Click to expand...

Almost. If you get rid of the double declaration, this would likely work.
Replace this:

with this

(I'm guessing that this was your intent.)

Also, the variable could be declared 'private' instead. That would be
better data hiding.

To the OP: the best solution is to pass the variable as a parameter.
--
--- Nick Malik [Microsoft]
MCSD, CFPS, Certified Scrummaster
http://blogs.msdn.com/nickmalik

Disclaimer: Opinions expressed in this forum are my own, and not
representative of my employer.
I do not answer questions on behalf of my employer. I'm just a
programmer helping programmers.
--
 
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