C# .NET - C# - Change item check state to item in checkedListbox

I am working with a checkedListBox, and having the following problem:

I just want to Check or Uncheck the selected item, when clicking on it repeatidly.

If the item is unchecked, and I click on it, I get it "Checked".

If now I click again on the same item, the state doesn't change.

If I click on another item and then I click the first one, I get it Unchecked as wanted.

What is the problem?

Thanks.

Here there is a example where we have checked and unchecked items depending on some condition. So have a look here;

private void CheckEveryOther_Click(object sender, System.EventArgs e) {
    // Cycle through every item and check every other.

    // Set flag to true to know when this code is being executed. Used in the ItemCheck
    // event handler.
    insideCheckEveryOther = true;

    for (int i = 0; i < checkedListBox1.Items.Count; i++) {
        // For every other item in the list, set as checked.
        if ((i % 2) == 0) {
            // But for each other item that is to be checked, set as being in an
            // indeterminate checked state.
            if ((i % 4) == 0)
                checkedListBox1.SetItemCheckState(i, CheckState.Indeterminate);
            else
                checkedListBox1.SetItemChecked(i, true);
        }
    }       

    insideCheckEveryOther = false;
}

May be this will give you an idea.

Go thr this for the same;

http://msdn.microsoft.com/en-us/library/system.windows.forms.checkedlistbox.objectcollection(VS.71).aspx

also see this;

http://msdn.microsoft.com/en-us/library/system.windows.forms.checkedlistbox.checkedindexcollection(VS.71).aspx

Best Luck!!!!!!!!!!!!!!!!!!!!
Sujit.

clbToFilter.checked ? something is missing...

clbToFilter is the checked list box.

void checkedListBox1_Click(object sender, System.EventArgs e)

{
      

    for (int i = 0; i < checkedListBox1.Items.Count; i++)

{
        
               if(checkedListBox1.item[i].checked)

checkedListBox1.item[i].checked = false;

else

    checkedListBox1.item[i].checked = true;           
   
}

}

Yeap Alice, you are right.

Thanks!