How to check if a variable is empty in wp7?

Question

In my app, I want to check if a string variable is empty.

I've handled it as follows,

 if ((Name == null) || (Name == ""))
  {
     //Handled
  }

But it passes this condition, if the value is given as " "(whitespace). How can i detect if the variable contains only whitespaces??

Thanks in advance!

score 4 · Answer 1 · answered Dec 11 '13 at 09:24

4

Use String.IsNullOrWhiteSpace:

if (String.IsNullOrWhiteSpace(Name))
{
    //Handled
}

answered Dec 11 '13 at 09:24

Chris Mantle

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score 3 · Answer 2 · answered Dec 11 '13 at 09:24

3

String.IsNullOrWhiteSpace(Name)

And MSDN article about it

answered Dec 11 '13 at 09:24

Anton Sizikov

9,105
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score 2 · Answer 3 · edited Dec 11 '13 at 09:39

2

Use String.IsNullOrEmpty to check null or empty and String.IsNullOrWhiteSpace to check null or whitespace

edited Dec 11 '13 at 09:39

Chris Mantle

6,595
3
34
48

answered Dec 11 '13 at 09:32

A.K.

3,321
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27

score 1 · Accepted Answer · edited Dec 11 '13 at 10:22

1

Use String.IsNullOrEmpty to check if it is null and String.IsNullOrWhiteSpace to chack for whitespace!! For your case String.IsNullOrWhitespace(Name)

edited Dec 11 '13 at 10:22

Anton Sizikov

9,105
1
28
39

answered Dec 11 '13 at 09:57

Aju

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How to check if a variable is empty in wp7?

4 Answers4