Getting listbox items to array

Question

0.00/5 (No votes)

See more:

public string[] getStopWords()
   {
      string[] stopWordArray = null;
      int itemCount = lbStopWords.Items.Count;

          for (int i = 0; i < itemCount; i++)
          {
              stopWordArray[i] = (string)lbStopWords.Items[i];
          }


       return stopWordArray;
   }

I wrote above method to get listBox items to array and return array but when using that method I am getting exception NullreferenceExeception was unhandle by user code

I couldn't find a way to go throw it.

Is there any other way to do that kind of method

pls help

Posted 16-Aug-10 7:15am

Kasunmit

Updated 16-Aug-10 9:00am

Dalek Dave

v2

Add a Solution

Comments

Dalek Dave 16-Aug-10 15:00pm

Minor Edit for Grammar.

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

saloni15 · Accepted Answer · 2010-08-16T07:28:00

Solution 1

public string[] get()
{
string[] arr = new string[listBox1.Items.Count];
for (int i = 0; i < listBox1.Items.Count; i++)
{
arr[i] = listBox1.Items[i].ToString();
}
return arr;
}

try dis if it solve ur purpose!!

Posted 16-Aug-10 7:28am

saloni15

Comments

Kasunmit 16-Aug-10 13:50pm

thank you very much saloni its working U r doing great help !!! :D

ludemade · Accepted Answer · 2010-08-16T07:48:00

The root cause of your problem is that you are using an array that has not been dimensioned. Try this:

C#

public string[] getStopWords()
{
    string[] stopWordArray = new string[lbStopWords.Items.Count];
    int itemCount = lbStopWords.Items.Count;
    for (int i = 0; i < itemCount; i++)
    {
        stopWordArray[i] = lbStopWords.Items[i].ToString();
    }
    return stopWordArray;
}

AnnieMacD · Accepted Answer · 2010-08-16T08:23:00

Solution 3

I know you already have your answer, but you could also have used:

C#

public string[] getStopWords()
       {
           string[] stopWordArray = new string[listBox1.Items.Count];
           listBox1.Items.CopyTo(stopWordArray,0);

           return stopWordArray;
       }

Posted 16-Aug-10 8:23am

AnnieMacD

Comments

Kasunmit 16-Aug-10 14:39pm

thanx AnnieMacD .. in programming do one thing we r having lot of ways ... i ll keep in touch ur answer also most probably it will be help me another time thanx again ..

Getting listbox items to array

3 solutions

Solution 1

Solution 2

Solution 3

Add your solution here

Preview 0

Existing Members

...or Join us