c# - Textbox, search without accents (ignore accents) -

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In my Windows Phone app, there is a ListBox (populated from a JSON) and a textbox that searches for items in the list box.

This code works fine, but I need to be able to find "lapis" and find "lapis". Therefore, I need to ignore the tone on my search.

How to do this? 

  Private zeros txtSearch_TextChanged (Object Sender, TextChangedEventArgs e) {if (Items! = Null) {it.list 1. Item Source = Item Where (w = & gt; w.descricao.ToUpper (). (SearchTextBox.Text.ToUpper ())); }} Private Zero WatermarkTB_GotFocus (Object Sender, RoutedEventArgs E) {If (SearchTextBox.Text == "Pesquisar Produto ...") {SearchTextBox.Text = ""; Solid Caller Brush Brush 1 = New Solid Collar Brush (); Brush 1 Color = color SearchTextBox.Foreground = Brush 1; }}

change 

  w.descricao ToUpper (). In this (SearchTextBox.Text.ToUpper ())

To 

  CultureInfo.CurrentCulture.CompareInfo.IndexOf (w.descricao, SearchTextBox.  unknown The meaning of non-space  
 
 
 indicates that string comparison characters should be ignored, such as diacritics

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