how i can get the index of the checkedlistbox item according to the value+C#+VS 2008+Window application

i want to get the index of the checkedlistbox item according to the value, so i have used
string value="hello";
// but all the items the answer is -1, and i sure that there is a item of value equal hello in the list
int getIndex=CheckedListBox.Items.IndexOf(value);
i read a lot of the internet and many people face this problem.

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Easwaran ParamasivamCommented:

In the checkedList_ItemCheck event you can get the index by event arguments.

One more option there, loop through all the items in the checklistbox and if the value is your String then return the index.

if(myCheckedListBox.Count != 0) 
  string s = "YourSring";    
  for(int i = 0; i <= myCheckedListBox.Count - 1 ; i++)  
   if (myCheckedListBox[i] == s
    retrun i;

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Kelvin McDanielSr. Developer/ConsultantCommented:
Since this inherits from the ListBox control you should use FindString(+2 overloads) or FindStringExact(+2 overloads).

You can get more information here: .

I just tested this and got the expected result... check the screenshot.
 Screenshot of CheckedListBox and positions of specific items in list.
Kelvin McDanielSr. Developer/ConsultantCommented:
Just saw that you'll need to be using the v3.5 framework to use the FindString() method... which I assume you are since you're IDE is VS2008.
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