CODEWITHSUNDEEP
c#classpropertiesstatic
Abhishek Jain
Abhishek Jain

Reputation: 315

how to pass static variables of class as argument in c#

I am trying access properties of particular inbulit class in c# but i am not getting how to pass a class static variable and pass as an argument to a method.

Here is the class I want to pass as argument:

public class PageSize
{
    //
    public static readonly Rectangle A0;
    //
    public static readonly Rectangle A1;
}

Now I have method where i want to pass the variables of the above class as argument like this:

public void NewExportToPDFforLetter(StringWriter sw, string FileName, PageSize s )
{
    //s = new PageSize();
    StringReader sr = new StringReader(sw.ToString());
    Document pdfDoc = new Document(s.A0, 30f, 30f, 30f, 30f);
}

I am getting error at s.A0. Any help will be appreciated.

Upvotes: 2

Views: 4916

Answers (5)

Abhishek Jain
Abhishek Jain

Reputation: 315

This is the way you can do this

var size= PageSize.A4;
NewExportToPDFforLetter(stringWriter, "Application Approval Letter", HttpContext.Current.Response,(Rectangle)size);

public void NewExportToPDFforLetter(StringWriter sw, string FileName, HttpResponse Response, Rectangle s )
{
    Document pdfDoc = new Document(s, 30f, 30f, 30f, 30f);
}

Upvotes: 0

Jerodev
Jerodev

Reputation: 33186

If you want to keep the properties static, you can access them directly using PageSize.A0 and PageSize.A1.

If you want to access them from an instance, you will have to remove the static declaration of the properties.

Upvotes: 1

InBetween
InBetween

Reputation: 32750

Now I have method where i want to pass the variables of the above class as argument like this: public void NewExportToPDFforLetter(StringWriter sw, string FileName, PageSize s )

And why would you want to do that? PageSize is already accesible inside NewExportToPDFforLetter without the need to pass it as an argument:

public void NewExportToPDFforLetter(
    StringWriter sw, 
    string FileName)
{
      var a0 = PageSize.A0; //accesible as long as `Page` is accesible:
                            //public class, internal in same assembly, etc.

      //...
}

If PageSize is not accesible from wherever NewExportToPDFforLetter is implemented, then you wouldn't be able to pass it as an argument to begin with, so the option you are considering is simply unecessary.

Upvotes: 2

kame
kame

Reputation: 21960

You need to access A0 with PageSize.A0 instead of s.A0

Upvotes: 0

Michel Keijzers
Michel Keijzers

Reputation: 15357

Since static class variables are not part of an instance, you should not use the instance.property syntax but classname.property.

Thus change

Document pdfDoc = new Document(s.A0, 30f, 30f, 30f, 30f);

to

Document pdfDoc = new Document(PageSize.A0, 30f, 30f, 30f, 30f);

However, it's not visible, but probably you do not want to use static. In that case instead of the above change, you have to remove the statics by changing

public static readonly Rectangle A0;
//
public static readonly Rectangle A1;

to

public readonly Rectangle A0;
//
public readonly Rectangle A1;

Upvotes: 1

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