AutoFormsButtonAttribute FindButtonAttribute(string commandName, ControlList listControl)
{
var domainModelType = listControl.BindingContext.GetType();
var props = AttributeHelper.GetPropertyAttributes <AutoFormsButtonAttribute>(domainModelType);
foreach (var p in props)
{
if (p.Item1.Name != commandName || p.Item2 == null)
{
continue;
}
return(p.Item2[0]);
}
return(null);
}
public static ControlBase CreateControl(ControlConfig config)
{
var attribute = config.Attribute;
var property = config.Property;
ControlBase item = null;
switch (attribute.Type)
{
case AutoFormsType.Group:
item = new ControlGroup(config);
break;
case AutoFormsType.Custom:
var attribCustom = property.GetAttribute <AutoFormsCustomAttribute>();
if (attribCustom != null && string.IsNullOrEmpty(attribCustom.CustomControlType) == false)
{
item = CreateCustomControl(attribCustom.CustomControlType);
if (item != null && item is ControlCustom customControl)
{
customControl.InitializeCustom(config);
}
}
break;
case AutoFormsType.ActionList:
var attribList = property.GetAttribute <AutoFormsListAttribute>();
if (attribList != null)
{
item = new ControlList(config);
}
break;
case AutoFormsType.Entry:
item = new ControlEditor(config);
break;
case AutoFormsType.Combo:
item = new ControlCombo(config);
break;
case AutoFormsType.Checkbox:
item = new ControlCheckbox(config);
break;
case AutoFormsType.Radio:
item = new ControlRadio(false, config);
break;
case AutoFormsType.DateTime:
item = new ControlDateTime(config);
break;
case AutoFormsType.Button:
item = new ControlButton(config);
break;
case AutoFormsType.Label:
item = new ControlLabel(config);
break;
case AutoFormsType.SelectButton:
item = new ControlSelectButton(config);
break;
case AutoFormsType.Auto:
var p = property.PropertyType;
var t = Nullable.GetUnderlyingType(p);
if (t != null)
{
p = t;
}
switch (p)
{
case Type _ when p == typeof(int):
case Type _ when p == typeof(float):
case Type _ when p == typeof(double):
case Type _ when p == typeof(decimal):
case Type _ when p == typeof(string):
item = new ControlEditor(config);
break;
case Type _ when p == typeof(DateTime):
case Type _ when p == typeof(DateTimeOffset):
item = new ControlDateTime(config);
break;
case Type _ when p == typeof(ICommand):
item = new ControlButton(config);
break;
case Type _ when p == typeof(bool):
item = new ControlCheckbox(config);
break;
case Type _ when p.IsEnum:
item = new ControlCombo(config);
break;
}
break;
}
return(item);
}
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 = attribute.Placeholder,
HeightRequest = attribute.HeightRequest,
};
iv.SetBinding(Editor.TextProperty, new Binding(property.Name, BindingMode.TwoWay));
}
else
{
iv = new Entry
{
Style = style,
Placeholder = 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 ImageButton
{
Style = style,
Text = btnAttrib?.Text,
HorizontalOptions = LayoutOptions.CenterAndExpand,
VerticalOptions = LayoutOptions.CenterAndExpand,
};
v.SetBinding(ImageButton.CommandParameterProperty, new Binding("."));
v.SetBinding(ImageButton.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 = "--", Value = -1
});
int index = 0;
foreach (var d in dict)
{
if (d.Value != "Unspecified" && d.Key != -1)
{
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.Start,
HorizontalOptions = LayoutOptions.StartAndExpand,
HorizontalTextAlignment = attribute.HorizontalItemAlignment,
LineBreakMode = LineBreakMode.TailTruncation,
MaxLines = 1,
};
v.SetBinding(Label.TextProperty, new Binding(property.Name, converter: new DisplayConverter()));
break;
}
return(v);
}
void CreateActionButtons(AutoFormsListUIAttribute attribute, ControlList listControl)
{
if (listControl == null || attribute == null || listControl.HasActions == false)
{
return;
}
Style buttonStyle = null;
if (Application.Current.Resources.TryGetValue(attribute.ActionButtonStyle, out object obj))
{
buttonStyle = (Style)obj;
}
// action buttons
_grid.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(ControlList.ActionButtonWidth, GridUnitType.Absolute)
});
var stack = new StackLayout
{
HorizontalOptions = LayoutOptions.EndAndExpand,
Orientation = StackOrientation.Horizontal,
Spacing = 15,
};
Grid.SetColumn(stack, _grid.ColumnDefinitions.Count - 1);
_grid.Children.Add(stack);
if (string.IsNullOrEmpty(listControl.EditCommand) == false)
{
var attrib = FindButtonAttribute(listControl.EditCommand, listControl);
var style = buttonStyle;
var text = "\uE70F";
if (attrib != null)
{
if (Application.Current.Resources.TryGetValue(attrib.ButtonStyle, out object obj1))
{
style = (Style)obj1;
}
text = attrib.Text;
}
var b = new ImageButton
{
Style = style,
Text = text,
Tooltip = "Edit"
};
b.SetBinding(ImageButton.CommandParameterProperty, new Binding("."));
b.SetBinding(ImageButton.CommandProperty, new Binding("BindingContext." + listControl.EditCommand, source: listControl));
stack.Children.Add(b);
}
if (string.IsNullOrEmpty(listControl.ViewCommand) == false)
{
var attrib = FindButtonAttribute(listControl.ViewCommand, listControl);
var style = buttonStyle;
var text = "\uE890";
if (attrib != null)
{
if (Application.Current.Resources.TryGetValue(attrib.ButtonStyle, out object obj2))
{
style = (Style)obj2;
}
text = attrib.Text;
}
var b = new ImageButton
{
Style = style,
Text = text,
Tooltip = "View"
};
b.SetBinding(ImageButton.CommandParameterProperty, new Binding("."));
b.SetBinding(ImageButton.CommandProperty, new Binding("BindingContext." + listControl.ViewCommand, source: listControl));
stack.Children.Add(b);
}
if (string.IsNullOrEmpty(listControl.DeleteCommand) == false)
{
var attrib = FindButtonAttribute(listControl.DeleteCommand, listControl);
var style = buttonStyle;
var text = "\uE74D";
if (attrib != null)
{
if (Application.Current.Resources.TryGetValue(attrib.ButtonStyle, out object obj3))
{
style = (Style)obj3;
}
text = attrib.Text;
}
var b = new ImageButton
{
Style = style,
Text = text,
Tooltip = "Delete"
};
b.SetBinding(ImageButton.CommandParameterProperty, new Binding("."));
b.SetBinding(ImageButton.CommandProperty, new Binding("BindingContext." + listControl.DeleteCommand, source: listControl));
stack.Children.Add(b);
}
}