mark one checkbox from checklistbox problem

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hello to all,
i m working on checklistbox.
i want only to mark one item at a time from checklistbox and if user select another checkbox ,the previous checkbox get unmarked.
how could i do that.

Posted 2-Aug-11 22:09pm

neeraj24may

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Herman<T>.Instance 3-Aug-11 4:13am

use the oncheck changed event and iterate over the checkboxes

4 solutions

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Abhinav S · Answer 1 · 2011-08-02T22:18:00

Solution 1

You can use a RadioButtonList.

However, if you still want to continue with a check box, see http://social.msdn.microsoft.com/Forums/en-US/winforms/thread/5333cdf2-a669-467c-99ae-1530e91da43a[^].

Posted 2-Aug-11 22:18pm

Abhinav S

YvesDaoust · Answer 2 · 2011-08-02T23:28:00

Keep a trace of the currently checked item in a variable.

In the SelectedIndexChanged handler, reset the currently checked item, and set the new one.

C#

if (SelectedIndex >= 0)
{
    checkedListBox1.SetItemChecked(SelectedIndex, false);
}
SelectedIndex = checkedListBox1.SelectedIndex;
checkedListBox1.SetItemChecked(SelectedIndex, true);

UJimbo · Answer 3 · 2011-08-02T23:38:00

Set the checklistbox's CheckOnClick attribute as True on form load.
Use the SelectedIndexChanged event like so:

private void checkedListBox1_SelectedIndexChanged(object sender, EventArgs e)
{
   if (checkedListBox1.GetItemChecked(checkedListBox1.SelectedIndex))
   {
      foreach (int item in checkedListBox1.CheckedIndices)
      {
         if(item != checkedListBox1.SelectedIndex)
            checkedListBox1.SetItemChecked(item, false);
      }
   }
}

manoharnch · Answer 4 · 2011-08-03T00:20:00

Solution 4

You can use Radio Button's for best you of it.........

Posted 3-Aug-11 0:20am

manoharnch

mark one checkbox from checklistbox problem

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