Why the code inside foreach doens't run?

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I have problem with foreach. The code inside foreach doesn't run, im put a Console WriteLine inside and it doesn't show up.

C#

List<string> targetStatus = properties.GetTargetStatus(); //This give not null value

C#

foreach (string status in targetStatus)
            {
                Console.WriteLine("Hello boss!"); //This message doesn't show up
            }

After run console application my code inside foreach doesn't show. someone can explain or give solutions for me?

What I have tried:

All i try at above....... And i dont know why :(, if List of targetStatus count = 0 the foreach will run?

Posted 12-Dec-16 23:07pm

EADever

Updated 12-Dec-16 23:55pm

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OriginalGriff · Accepted Answer · 2016-12-12T23:16:00

The most obvious reason is because there are no items in the collection.
Use the debugger: put a breakpoint on the line

C#

foreach (string status in targetStatus)

And run your code in the debugger. When it reaches the line, it will stop and hand control to you. You can then examine variable contents, single step lines, and so forth.
If it is an empty collection, then it's up to you to find out why: put another breakpoin on the line

C#

List<string> targetStatus = properties.GetTargetStatus();

And run your code in the debugger again. This time, when it reaches the line step into the method and follow closely what happens there.

CPallini · Accepted Answer · 2016-12-12T23:19:00

Solution 2

Quote:
if List of targetStatus count = 0 the foreach will run?

No, of course. You cannot enumerate an empty set. What would be the value of status?

Posted 12-Dec-16 23:19pm

CPallini

Comments

F. Xaver 13-Dec-16 5:50am

5ed

CPallini 13-Dec-16 5:54am

Thank you.

EADever 13-Dec-16 7:29am

`properties.GetTargetStatus();` get List<string> value from [XmlAttribute("")]

#realJSOP · Accepted Answer · 2016-12-12T23:55:00

Solution 3

targetStatus may not be null, but it doesn't necessarily mean that there are any items in the collection.

Posted 12-Dec-16 23:55pm

#realJSOP