I have a list of items that are grouped by their first letter. By clicking a letter the user gets alle entries that begin with that letter.

This does not work for french. If I choose the letter a, items with â are not returned.

What is a good way to return items no matter if they have an accent or not?

                 <%  char alphaStart = Char.Parse("A"); 
                        char alphaEnd = Char.Parse("Z"); %>
                    <%  for (char i = alphaStart; i <= alphaEnd; i++) { %>
                        <% char c = i; %>
                        <% var abcList = Model.FaqList.Where(x => x.CmsHeader.StartsWith(c.ToString())).ToList(); %>
                        <% if (abcList.Count > 0 ) { %> 
                            <div class="naviPkt">
                                <a id="<%= i.ToString().ToUpper() %>" class="naviPktLetter" href="#<%= i.ToString().ToLower() %>"><%= i.ToString().ToUpper() %></a>
                            </div>
                            <ul id="menuGroup<%= i.ToString().ToUpper() %>" class="contextMenu" style="display:none;">
                                <% foreach (var info in abcList) { %>
                                    <li class="<%= info.CmsHeader%>">
                                        <a id="infoId<%= info.CmsInfoId%>" href="#<%= info.CmsInfoId%>" class="abcEntry"><%= info.CmsHeader%></a>
                                    </li>
                                <% } %>                                        
                            </ul>
                        <% } %>

                    <% } %>