Question

I have One CheckBox above the CheckBoxList and its Text as “Show only Selected Items”.

My CheckBoxList has 10 items and three items as Selected.

But when I Check the CheckBox, I want to display only the selected three items in the CheckBoxList.
When I uncheck the CheckBox, I want to display all the 10 items and three items as selected.

How to do this?

Answer 1

in the checked event of checkbox of “Show only Selected Items”, do loop and check which is checked and if checkbox of checkboxlist is not selected then remove/visible false that item from checkboxlist.

void Check_Clicked(Object sender, EventArgs e) 
{
    if(chk.Items[i].Selected != true)
        chk.visibility = chk.checked;
}