private static void OnSearchModePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
AutoCompleteTextBox source = d as AutoCompleteTextBox;
AutoCompleteSearchMode mode = (AutoCompleteSearchMode)e.NewValue;
if (mode != AutoCompleteSearchMode.Contains &&
mode != AutoCompleteSearchMode.ContainsCaseSensitive &&
mode != AutoCompleteSearchMode.ContainsOrdinal &&
mode != AutoCompleteSearchMode.ContainsOrdinalCaseSensitive &&
mode != AutoCompleteSearchMode.Custom &&
mode != AutoCompleteSearchMode.Equals &&
mode != AutoCompleteSearchMode.EqualsCaseSensitive &&
mode != AutoCompleteSearchMode.EqualsOrdinal &&
mode != AutoCompleteSearchMode.EqualsOrdinalCaseSensitive &&
mode != AutoCompleteSearchMode.None &&
mode != AutoCompleteSearchMode.StartsWith &&
mode != AutoCompleteSearchMode.StartsWithCaseSensitive &&
mode != AutoCompleteSearchMode.StartsWithOrdinal &&
mode != AutoCompleteSearchMode.StartsWithOrdinalCaseSensitive)
{
source.SetValue(e.Property, e.OldValue);
throw new ArgumentException("", "value");
}
// Sets the filter predicate for the new value
AutoCompleteSearchMode newValue = (AutoCompleteSearchMode)e.NewValue;
source.TextFilter = AutoCompleteSearch.GetFilter(newValue);
}
/// <summary>
/// Index function that retrieves the filter for the provided
/// AutoCompleteSearchMode.
/// </summary>
/// <param name="searchMode">The built-in search mode.</param>
/// <returns>Returns the string-based comparison function.</returns>
public static AutoCompleteSearchPredicate<string> GetFilter(AutoCompleteSearchMode searchMode)
{
switch (searchMode)
{
case AutoCompleteSearchMode.Contains:
return Contains;
case AutoCompleteSearchMode.ContainsCaseSensitive:
return ContainsCaseSensitive;
case AutoCompleteSearchMode.ContainsOrdinal:
return ContainsOrdinal;
case AutoCompleteSearchMode.ContainsOrdinalCaseSensitive:
return ContainsOrdinalCaseSensitive;
case AutoCompleteSearchMode.Equals:
return Equals;
case AutoCompleteSearchMode.EqualsCaseSensitive:
return EqualsCaseSensitive;
case AutoCompleteSearchMode.EqualsOrdinal:
return EqualsOrdinal;
case AutoCompleteSearchMode.EqualsOrdinalCaseSensitive:
return EqualsOrdinalCaseSensitive;
case AutoCompleteSearchMode.StartsWith:
return StartsWith;
case AutoCompleteSearchMode.StartsWithCaseSensitive:
return StartsWithCaseSensitive;
case AutoCompleteSearchMode.StartsWithOrdinal:
return StartsWithOrdinal;
case AutoCompleteSearchMode.StartsWithOrdinalCaseSensitive:
return StartsWithOrdinalCaseSensitive;
case AutoCompleteSearchMode.None:
case AutoCompleteSearchMode.Custom:
default:
return null;
}
}
/// <summary>
/// Index function that retrieves the filter for the provided
/// AutoCompleteSearchMode.
/// </summary>
/// <param name="searchMode">The built-in search mode.</param>
/// <returns>Returns the string-based comparison function.</returns>
public static AutoCompleteSearchPredicate <string> GetFilter(AutoCompleteSearchMode searchMode)
{
switch (searchMode)
{
case AutoCompleteSearchMode.Contains:
return(Contains);
case AutoCompleteSearchMode.ContainsCaseSensitive:
return(ContainsCaseSensitive);
case AutoCompleteSearchMode.ContainsOrdinal:
return(ContainsOrdinal);
case AutoCompleteSearchMode.ContainsOrdinalCaseSensitive:
return(ContainsOrdinalCaseSensitive);
case AutoCompleteSearchMode.Equals:
return(Equals);
case AutoCompleteSearchMode.EqualsCaseSensitive:
return(EqualsCaseSensitive);
case AutoCompleteSearchMode.EqualsOrdinal:
return(EqualsOrdinal);
case AutoCompleteSearchMode.EqualsOrdinalCaseSensitive:
return(EqualsOrdinalCaseSensitive);
case AutoCompleteSearchMode.StartsWith:
return(StartsWith);
case AutoCompleteSearchMode.StartsWithCaseSensitive:
return(StartsWithCaseSensitive);
case AutoCompleteSearchMode.StartsWithOrdinal:
return(StartsWithOrdinal);
case AutoCompleteSearchMode.StartsWithOrdinalCaseSensitive:
return(StartsWithOrdinalCaseSensitive);
case AutoCompleteSearchMode.None:
case AutoCompleteSearchMode.Custom:
default:
return(null);
}
}
