check Null value in Rdlc Report

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Hi,
I want to check Null value in textbox field,if it 's Null,then print something.I tried Is Nothing but still getting the #ERROR display.

=IIF(Fields!NonTechHours.Value is Nothing,"Null",IIF(Right(Fields!NonTechHours.Value,InStr(Fields!NonTechHours.Value,"."))>0,Fields!NonTechHours.Value,Left(Fields!NonTechHours.Value,InStr(Fields!NonTechHours.Value,".")-1)))

Posted 15-Feb-11 18:08pm

Rajni from delhi

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Sandeep Mewara 16-Feb-11 5:56am

I see you do a repost, why so? Please avoid it in future!

2 solutions

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Abhinav S · Answer 1 · 2011-02-15T18:12:00

Solution 2

If you are using .Net 2.0 or above, you can actually use the null coalesce operator - ??.

This will convert null into "" automatically.
Your code will be something like Fields!NonTechHours.Value?? "".

Posted 15-Feb-11 18:12pm

Abhinav S

Comments

Rajni from delhi 16-Feb-11 0:27am

?? operator is not in RDLC

Abhinav S 16-Feb-11 0:56am

I thought you were writing this line in code as your question tag said C#.

Sergey Alexandrovich Kryukov 16-Feb-11 0:57am

I voted 5 before I was this note -- won't hurt I hope :-)
--SA

Abhinav S 16-Feb-11 1:35am

No it wont hurt at all. :)

Sergey Alexandrovich Kryukov 16-Feb-11 0:56am

What your tag C# means? It is applicable? If not, remove it, don't confuse people!
--SA

Rajni from delhi 16-Feb-11 1:09am

sorry,Act. m new to this code Project site.wht's tag should i use for it?how can i achieve the solution of my problem?

Abhinav S 16-Feb-11 1:35am

You can use a tag that like RDLC or 'report'. This will help others understand your question quicker, besides making sure that people like me dont misread your question. It will also help attract those people who know the topic well, so that gives you a better chance of getting your question answered correctly.

Rajni from delhi 16-Feb-11 1:48am

but when i do like that,it's says 'Please Revise your tag'

Ramalinga Koushik · Answer 2 · 2011-02-15T18:18:00

Solution 3

The text property of the textbox class is a string. It wont even accept System.DBNull.Value as a value. If you set it equal to some other object, it will be cast as string.

Based on this,TextBox1.Text = "" is just as viable as anything else.

Posted 15-Feb-11 18:18pm

Ramalinga Koushik

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Rajni from delhi 16-Feb-11 0:35am

Not Getting.wht should i do to achieve this ?