ASP.net DropDownList with no selected item.

Question

I have a ASP DropDownList with item added to it. all what I want is to make the selection after the page loaded empty so there should not be selected item.

How can I do that.

Answer 1

You can set the SelectedIndex property to -1 or you can add an empty entry as the first item in the data source and validate the selection on form submission.

Answer 2

yourDropDownList.Items.Clear()

To repopulate, you can either add items statically as per womps suggestion (substituting params in the insert() method, or you can populate it dynamically from a data source. The backing store for list items is the ListItemCollection.

Answer 3

You can add an empty item to the top of your dropdownlist programmatically like this:

myDropDown.Items.Insert(0, new ListItem(string.Empty, string.Empty));
myDropDown.SelectedIndex = 0;

Answer 4

Not sure I understand your question but try this:

DropDownList1.ClearSelection()

or

DropDownList1.SelectedIndex = -1;