To have the change buttons disabled when there are no suggestions, unless

the user makes an edit to the query word, implement a custom UI and make

some slight changes.

If you look at our CustomGUIView.cs file in the demo project, you can

easily customize the behaviour of the UI. Eg. change these methods

public object SuggestionsListItems{get{return

this.suggestionsList.DataSource;}

set{

suggestionsList.DataSource=value;

ChangeButtonEnabled = suggestionsList.Items.Count != 0;

//add this

ChangeAllButtonEnabled = suggestionsList.Items.Count != 0;

//add this

}

}

and

private void queryWordPane_KeyDown(object sender, KeyEventArgs e)

{

if (e.KeyCode == Keys.Back && queryWordPane.SelectionStart ==

editableStart)

e.SuppressKeyPress = true;

if (e.KeyCode == Keys.Delete && queryWordPane.TextLength - queryWordPane.SelectionStart == editableEndFromEnd)

e.SuppressKeyPress = true;

if (e.KeyCode == Keys.Enter)

e.SuppressKeyPress = true;

ChangeAllButtonEnabled = true; //add this

ChangeButtonEnabled = true; //add this

}