how to change selection mode of a checked list box in runtime?

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i have a form containing radio buttons
(button 1----> ISSUED) and
(button 2----> NON_ISSUED

and i have a checked list box which will contain certain items.
i need to enable the user to check multiple items in checked list box only if radio button 1 is checked.
else if radiobutton2 is checked i want to restrict selection mode to SINGLE selection mode.
is it possible??
thanks in advance to those who are interested to help :)

Posted 10-Aug-11 20:29pm

greatreddevil

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walterhevedeich · Answer 1 · 2011-08-10T20:32:00

Why not have 2 sets of list controls, a checkbox list for 1 and a radio button list for 2. If button 1 is selected, hide the radio button list and show checkbox list, else, the other way around.

[Edit]
OK, so 2 controls will not work. Try this then. Let me know if it works for you.

C#

private void checkedListBox1_SelectedValueChanged(object sender, EventArgs e)
        {
            if (radioButton1.Checked)
            {
                for (int i = 0; i < checkedListBox1.Items.Count; i++)
                {
                    checkedListBox1.SetItemCheckState(i, CheckState.Unchecked);
                }
                checkedListBox1.SetItemCheckState(checkedListBox1.SelectedIndex, CheckState.Checked);
            }
        }

[/Edit]

Toniyo Jackson · Answer 2 · 2011-08-10T20:37:00

Solution 3

Unfortunately, for CheckedListBox objects, multiple selection is not supported. You can set the mode to one item or no items.

Read this link for more info.

http://social.msdn.microsoft.com/Forums/en-US/vbbugsubmissionpilot/thread/1a4acbfe-8e1b-42a3-ac27-1ed280d8a9af/[^]

Posted 10-Aug-11 20:37pm

Toniyo Jackson

Updated 10-Aug-11 21:31pm

v2

Comments

greatreddevil 11-Aug-11 3:17am

i have tried a same but its not working as expected.... :(
i get an error that checkedlistbox does not support multipisimple or multiextended selection mode

Toniyo Jackson 11-Aug-11 3:32am

See my updated answer

Praveen Kullu · Answer 3 · 2011-08-10T23:57:00

Multiple selection is not supported in checkedlistbox. But toggling CheckOnClick = true on one radio button click and false on second radio button click could help.

C#

if (RadioButton1.Checked) 
    checkedListBox1.CheckOnClick =true;
else
   checkedListBox1.CheckOnClick = false;

It's not the solution you want, but could make your multiple selection easier.

Suresh Suthar · Answer 4 · 2011-08-10T20:35:00

Solution 2

C#

if (RadioButton1.Checked) 
    ListBox1.SelectionMode = SelectionMode.MultiExtended;
else
    ListBox1.SelectionMode = SelectionMode.One;
endif

Posted 10-Aug-11 20:35pm

Suresh Suthar

how to change selection mode of a checked list box in runtime?

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