View CreateControlView(
PropertyInfo property,
AutoFormsListItemAttribute attribute,
ControlList listControl)
{
Style style = null;
if (string.IsNullOrEmpty(attribute.ItemStyle) == false &&
Application.Current.Resources.TryGetValue(attribute.ItemStyle, out object obj))
{
style = (Style)obj;
}
View v = null;
switch (attribute.Type)
{
case AutoFormsType.DateTime:
v = new DatePicker
{
Style = style
};
v.SetBinding(DatePicker.DateProperty, new Binding(property.Name, BindingMode.TwoWay, new DateTimeConverter(), property.PropertyType));
break;
case AutoFormsType.Entry:
var maxLength = property.GetAttribute <AutoFormsMaxLengthAttribute>()?.Length ?? 0;
InputView iv;
if (attribute.HeightRequest > 0)
{
iv = new Editor
{
Style = style,
Placeholder = ControlBase.GetLocalizedString(attribute.Placeholder),
HeightRequest = attribute.HeightRequest,
};
iv.SetBinding(Editor.TextProperty, new Binding(property.Name, BindingMode.TwoWay));
}
else
{
iv = new Entry
{
Style = style,
Placeholder = ControlBase.GetLocalizedString(attribute.Placeholder),
};
iv.SetBinding(Entry.TextProperty, new Binding(property.Name, BindingMode.TwoWay));
}
if (maxLength > 0)
{
iv.MaxLength = maxLength;
}
v = iv;
break;
case AutoFormsType.Checkbox:
//v = new Checkbox
//{
// HorizontalOptions = LayoutOptions.Center,
//};
//v.SetBinding(Checkbox.CheckedProperty, new Binding(property.Name, BindingMode.TwoWay));
break;
case AutoFormsType.Button:
var btnAttrib = property.GetAttribute <AutoFormsButtonAttribute>();
if (btnAttrib != null &&
string.IsNullOrEmpty(btnAttrib.ButtonStyle) == false &&
Application.Current.Resources.TryGetValue(btnAttrib.ButtonStyle, out object btnObj))
{
style = (Style)btnObj;
}
v = new Button
{
Style = style,
Text = ControlBase.GetLocalizedString(btnAttrib?.Text),
HorizontalOptions = LayoutOptions.CenterAndExpand,
VerticalOptions = LayoutOptions.CenterAndExpand,
};
v.SetBinding(Button.CommandParameterProperty, new Binding("."));
v.SetBinding(Button.CommandProperty, new Binding(property.Name));
break;
case AutoFormsType.Combo:
v = new Picker();
var propertyType = property.PropertyType;
var t = Nullable.GetUnderlyingType(propertyType);
if (t != null && t.IsEnum)
{
propertyType = t;
var dict = EnumHelper.ToDictionary(propertyType);
var items = new List <ControlCombo.EnumItem>();
items.Add(new ControlCombo.EnumItem {
Title = "Please Select", Value = -1
});
int index = 0;
foreach (var d in dict)
{
items.Add(new ControlCombo.EnumItem {
Title = d.Value, Value = index++
});
}
var picker = v as Picker;
picker.ItemsSource = items;
picker.SetBinding(
Picker.SelectedIndexProperty,
new Binding(property.Name, BindingMode.TwoWay, new ControlCombo.EnumItemConverter(), propertyType));
}
else if (property.PropertyType.IsEnum)
{
var picker = v as Picker;
var dict = EnumHelper.ToDictionary(property.PropertyType);
picker.ItemsSource = dict.Values.ToList();
picker.SetBinding(
Picker.SelectedIndexProperty,
new Binding(property.Name, BindingMode.TwoWay, new EnumConverter(), property.PropertyType));
}
break;
default:
style = style ?? listControl?.LabelStyle ?? null;
v = new Label
{
Style = style,
VerticalOptions = LayoutOptions.CenterAndExpand,
VerticalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.Fill,
HorizontalTextAlignment = attribute.HorizontalItemAlignment,
LineBreakMode = LineBreakMode.TailTruncation,
MaxLines = 1,
};
v.SetBinding(Label.TextProperty, new Binding(property.Name, converter: new DisplayConverter()));
break;
}
return(v);
}
protected void RecreatControl()
{
_grid.Children.Clear();
_grid.RowDefinitions.Clear();
_grid.ColumnDefinitions.Clear();
ControlValidation = null;
var listControl = GetParentListView();
if (listControl == null)
{
return;
}
var domainModelType = listControl.GetListItemType();
_grid.ColumnSpacing = 0;
_grid.Padding = new Thickness(25, 5, 25, 5);
var props = AttributeHelper.GetPropertyAttributes <AutoFormsListItemAttribute>(domainModelType);
ControlValidation controlValidation = new ControlValidation(() => { _grid.ForceLayout(); });
foreach (var p in props)
{
var property = p.Item1;
var attribute = ControlBase.GetFilteredAttribute(listControl.Filter, p.Item2);
if (property == null || attribute == null)
{
continue;
}
_grid.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(attribute.Value, attribute.GridType)
});
var v = CreateControlView(property, attribute, listControl);
Grid.SetColumn(v, _grid.ColumnDefinitions.Count - 1);
_grid.Children.Add(v);
var validations = property.GetAttributes <AutoFormsValidationAttribute>();
if (validations != null && validations.Length > 0)
{
foreach (var validation in validations)
{
controlValidation.AddValidation(validation, v, string.IsNullOrWhiteSpace(attribute.Label) ? attribute.Placeholder : attribute.Label);
}
}
}
CreateActionButtons(listControl);
if (controlValidation.Size > 0)
{
_grid.RowDefinitions.Add(new RowDefinition {
Height = GridLength.Auto
});
Grid.SetRow(controlValidation, 1);
Grid.SetColumnSpan(controlValidation, _grid.ColumnDefinitions.Count);
_grid.Children.Add(controlValidation);
ControlValidation = controlValidation;
}
//_grid.DebugGrid(Color.Red);
}