Solved

how to remove null values from string array in my C# .net window application??

Posted on 2011-02-16
3
943 Views
Last Modified: 2012-05-11
i have created one dimensional string array ...
for ex.
String[] QuetionOptions = new String[6];
QuetionOptions[0] = null
QuetionOptions[1] = null
QuetionOptions[2] = "option"
QuetionOptions[3] = null
QuetionOptions[4] = "option"
QuetionOptions[5] = null
QuetionOptions[6] = "option"

how can i remove null values from above string array ??
and store it into new string array ....
0
Comment
Question by:Parth48
3 Comments
 
LVL 52

Expert Comment

by:Carl Tawn
ID: 34905858
If LINQ is an option you could use:
            String[] filtered = (from item in QuetionOptions.AsQueryable()
                                 where item != null
                                 select item).ToArray();

Open in new window

0
 
LVL 7

Expert Comment

by:kovilpattiBalu
ID: 34905925
0
 
LVL 7

Accepted Solution

by:
mkobrin earned 500 total points
ID: 34905941
if linq is not an option then do the following
List<string> result = new List<string>
for(int j = 0; j < QuetionOptions.length; j++)
{
    if(QuetionOptions[j] != null)
        result.add(QuetionOptions[ji]);
}
//you now have a list with no nulls if you specifcally want an array then do the following as well:
string[] resultArray = new string[result.count]
int j = 0;
foreach(string data in result)
{
    resultArray[j] = data ;
    j++;
}
0

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Runtime Error 2 28
Error on Add method 1 37
I need help making a collection from a class in VB.Net 3 25
How to make a GridView cell hyperlinked using C# ? 3 12
Problem Hi all,    While many today have fast Internet connection, there are many still who do not, or are connecting through devices with a slower connect, so light web pages and fast load times are still popular.    If your ASP.NET page …
Today I had a very interesting conundrum that had to get solved quickly. Needless to say, it wasn't resolved quickly because when we needed it we were very rushed, but as soon as the conference call was over and I took a step back I saw the correct …
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
This video demonstrates how to create an example email signature rule for a department in a company using CodeTwo Exchange Rules. The signature will be inserted beneath users' latest emails in conversations and will be displayed in users' Sent Items…

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now