Spliting of strings in Propertis

Question

3.14/5 (7 votes)

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Is it possible to split a string in properties.

I write the core for this as like bellow

C#

public Facility facility { get; set; }

public FOBillLineItem LineItem { get; set; }
public Facility facility { get; set; }

public string Name
       {
           get
           {
               facility = CoreManager.DC.Facilities.FirstOrDefault();
               if (facility.TaxMethodpersent == 1)
               {
                   string[] n = LineItem.Name.Split('@');
                   return n[0];
               }
               else
               {
                   return LineItem.Name;
               }
           }
       }
      public decimal Discount
      {
          get
          {
              if (LineItem != null)
                  return LineItem.Discount;
              else
                  return 0;
          }
          set
          {
              LineItem.Discount=value;
          }
      }

But it give an exception "Object reference is not set to an instance of object" at LineItem.Name

Posted 16-May-11 0:11am

ajitha.pusapati

Updated 16-May-11 0:21am

Kim Togo

v4

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Comments

Sergey Alexandrovich Kryukov 16-May-11 6:33am

You did not explain for format of input string...
--SA

ajitha.pusapati 16-May-11 6:39am

FoBillLineItem is a table name column haveing the values like 'luxry @ 5%' or 'Service @ 6%'.
In previous i send as it is by using "public string Name { get; set; }" its working now i want not display tax details. i.e. 'luxry @ 5%' will display 'luxry'

2 solutions

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Kim Togo · Answer 1 · 2011-05-16T00:22:00

Solution 1

Yes you can.
But you have to check LineItem and LineItem.Name is null and if .Spilt gives any results.
It is therefore you will get "Object reference is not set to an instance of object".

Try this code

C#

if (LineItem != null && !string.IsNullOrEmpty(LineItem.Name))
{
  string[] n = LineItem.Name.Split("@");
  return n.Length > 0 ? n[0] : string.Empty; // Check if string array is empty, if not return first row else return empty string.
}
else
{
  return string.Empty;
}

Posted 16-May-11 0:22am

Kim Togo

Updated 16-May-11 0:40am

v4

Comments

ajitha.pusapati 16-May-11 6:33am

LineItem.Name does not have any value.
but discount property working

Sergey Alexandrovich Kryukov 16-May-11 6:34am

OK, here is the reason of the exception.
--SA

Sergey Alexandrovich Kryukov 16-May-11 6:36am

You know what? Just stop it. Go run under debugger and locate the line where the exception is thrown, examine values of variable at this moment. If you still did not find a problem, add this info to your question... use "Improve Question"...

Sergey Alexandrovich Kryukov 16-May-11 6:40am

So what? LineItem.Name is one thing, LineItem.Discount is another.
Read my lips:
Debugger!!!!!!!!!!!!!!!!
--SA

Kim Togo 16-May-11 6:40am

See updated answer.

Sergey Alexandrovich Kryukov 16-May-11 6:33am

I think you missed "?" in second line.
--SA

Kim Togo 16-May-11 6:35am

You are right SA. Brain compiler error. Fix.

Sergey Alexandrovich Kryukov 16-May-11 6:39am

I voted 5, but OP's comments some "but"... it makes no sense; I advices to check things under debugger; exception stack can also help...
--SA

Kim Togo 16-May-11 6:55am

Thanks for the 5, SA

Shahdat Hosain · Answer 2 · 2011-05-16T00:36:00

Solution 2

string[] n = LineItem.Name.Split('@');

please check LineItem may be null,

Where do you assign the value of LineItem before applying split operation?

Posted 16-May-11 0:36am

Shahdat Hosain