Re: How to get Variable Names from a method. - C# Discussion Boards

Mirko198010-Jul-09 4:08

Mirko1980

10-Jul-09 4:08

That's right, the padding is related to strings, if you convert back the string to int, you will lose al format you have applied to it.

musefan10-Jul-09 3:18

musefan

10-Jul-09 3:18

I really like the logic you have used in getting a value with 8 digits, it's great to see people thinking along those lines rather than expecting things to be done with a simple 'out the box' line of code (and thus never really learning how things are actually acheived).

But in instances like this one-liners are the way to go, so hope this helps...

int newNumber = lastReceiptNumber + 1;
string displayNumber = newNumber.ToString("D" + receiptDisplayDigits);

Life goes very fast. Tomorrow, today is already yesterday.

kKamel10-Jul-09 3:37

kKamel

10-Jul-09 3:37

Thanks man i really appreciate it, we ask question so we could learn how to solve them other wise we are not programers we are just people who ask questions

musefan10-Jul-09 4:07

musefan

10-Jul-09 4:07

Exactly, and questions like yours will always be welcome in The Code Project forums Wink | ;)

Life goes very fast. Tomorrow, today is already yesterday.

kKamel10-Jul-09 3:53

kKamel

10-Jul-09 3:53

Man it worked great but could you explain what is the use with "D" i did not know what did it do.

How to get Variable Names from a method.

musefan10-Jul-09 4:05

musefan

10-Jul-09 4:05

some data types (such as int) have the option to overload the ToString method and provide a string containing format information. 'D' followed by a number ensures that the string contains as many preceding zeros as dictated by the number. have a look here[^] for more information

Life goes very fast. Tomorrow, today is already yesterday.

Anir198210-Jul-09 1:51

Anir1982

10-Jul-09 1:51

I am using Relection to get Methods from an Assembly.
I want to display the local Variable names in a method.

I have a test method called Test.

public void Test()
{
string myString = string.Empty;
int myInt = 0;
}

So I am using the following code:

MethodInfo[] methodInfo = type.GetMethods(BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static);

List<MethodInfo> methods= new List<MethodInfo>(methodInfo);

foreach (MethodInfo method in methods)
{
MethodBody methodBody = method.GetMethodBody();
IList<LocalVariableInfo> localVariables = methodBody.LocalVariables;
}

My problem is, even if I loop through the localVariables collection, I am not able to get the name of the variables of Test Method.

Kindly let me know how do I get the variable names.

Thanks in Advance.

Luc Pattyn10-Jul-09 1:56

10-Jul-09 1:56

Hi,

AFAIK local variables are not available in the meta data, except for the method's parameters.

Smile | :)

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Nagy Vilmos10-Jul-09 2:56

Nagy Vilmos

10-Jul-09 2:56

Correct. Reflection only exposes the interface, not the implimentation.

Panic, Chaos, Destruction.
My work here is done.

Anir198210-Jul-09 3:04

Anir1982

10-Jul-09 3:04

Agreed, I know that,
but I could see the variable names in the method in ildasm so I thought there might be a way to get those. I know ildasm is DISASSEMBLER Smile | :)

but took a chance.

Thanks for reply,
Aniruddha

Luc Pattyn10-Jul-09 7:39

10-Jul-09 7:39

Hi,

forget Reflector, it won't tell you about locals. You need either the source files or, maybe, the PDB file.

Smile | :)

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Nagy Vilmos10-Jul-09 3:01

Nagy Vilmos

10-Jul-09 3:01

Anir1982 wrote:
Kindly let me know how do I get the variable names.

You can't and that is the end of it. It would require that reflection exposes the implimentation of the method rather than the interface.

What use would it be if you could in the long run? You cannot [or should not] be able to change the state of internal variables. Local variables only have scope within the life of a single call to the method. How or when would you be able to constructively use the instance or local variables of a class or method?

Panic, Chaos, Destruction.
My work here is done.

DataGridView

sanforjackass10-Jul-09 1:29

sanforjackass

10-Jul-09 1:29

How Can I Select any Row In DataGridVeiw

stancrm10-Jul-09 1:39

stancrm

10-Jul-09 1:39

example :
dataGridView1.Rows[3].Selected = true;

sanforjackass10-Jul-09 2:06

sanforjackass

10-Jul-09 2:06

Thanks But How Can I MOve The ScrollBar To That Row

stancrm10-Jul-09 2:11

stancrm

10-Jul-09 2:11

dataGridView1.FirstDisplayedScrollingRowIndex = 3; // set the index of row here..

A simple event that takes no arguments

sanforjackass10-Jul-09 2:18

sanforjackass

10-Jul-09 2:18

I Am Greatfull.
Thanks Again Thumbs Up | :thumbsup:

Tobias Norlund10-Jul-09 1:27

Tobias Norlund

10-Jul-09 1:27

Hello!

I have a very simple question. If I want to create an event to my class I can use the EventHandler delegate like this:

public event EventHandler OnLog;

But the EventHandler delegate takes two arguments (the sender and an EventArgs object). If I don't want to have those arguments in my event, is there any other event handler delegate that takes zero arguments or so, or do I have to create the delegate myself?

Regards

stancrm10-Jul-09 1:32

stancrm

10-Jul-09 1:32

Just use:

if(OnLog != null)
{
  OnLog(null, EventArgs.Empty);
}

Luc Pattyn10-Jul-09 1:58

10-Jul-09 1:58

or define your own delegate.

or use an Action<type> so you can have exactly one argument with a type you choose.

Smile | :)

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Tobias Norlund10-Jul-09 2:17

Tobias Norlund

10-Jul-09 2:17

Okey nice! Thank you!

Luc Pattyn10-Jul-09 7:40