public static Func <object, PropertyInfo, Func <object>, Action <object>, object> ChoicesWithRadioButtons(
IEnumerable <object> choices, NullableOptionInclusionKind nullKind, Func <object, string> toString = null) =>
(o, p, gv, sv) =>
{
var group = Guid.NewGuid().ToString();
var v = gv();
var radioButtons =
choices
.Select(x => new RadioButton(@group, toString?.Invoke(x) ?? $"{x}", x.Equals(v), b => sv(x)))
.ToList();
var nullOption = new RadioButton(@group, NullString, v == null, _ => sv(null));
switch (nullKind)
{
case NullableOptionInclusionKind.IncludeAtStart:
radioButtons.Insert(0, nullOption);
break;
case NullableOptionInclusionKind.IncludeAtEnd:
radioButtons.Add(nullOption);
break;
}
return(Util.HorizontalRun((bool)true, (IEnumerable)radioButtons));
};
public static Func <object, PropertyInfo, Func <object>, Action <object>, object> ChoicesWithHyperlinqs <T>(
IEnumerable <T> choices, NullableOptionInclusionKind nullKind, Func <T, string> toString = null) =>
(o, p, gv, sv) =>
{
var preceding = new object[] { gv(), "[" };
var trailing = new object[] { "]" };
var values = choices.Select(x => new Hyperlinq(() => sv(x), toString?.Invoke(x) ?? $"{x}")).ToList();
var nullOption = new Hyperlinq(() => sv(null), NullString);
switch (nullKind)
{
case NullableOptionInclusionKind.IncludeAtStart:
values.Insert(0, nullOption);
break;
case NullableOptionInclusionKind.IncludeAtEnd:
values.Add(nullOption);
break;
}
return(Util.HorizontalRun(
true,
Enumerable.Concat(
new object[] { gv(), "[" },
choices.Select(x => new Hyperlinq(() => sv(x), toString?.Invoke(x) ?? $"{x}")))
.Concat(new[] { "]" })));
};
public static Func <object, PropertyInfo, Func <object>, Action <object>, object> ChoicesWithRadioButtons <T>(
IEnumerable <T> choices, NullableOptionInclusionKind nullKind, Func <T, string> toString = null) =>
ChoicesWithRadioButtons(choices.OfType <object>(), nullKind, o => toString((T)o));
