public Where Binding(object value)
{
BindingComponent binding = BindingComponent.Binding();
_components.AddBinding(binding.value, value);
_components.Add(binding);
return(this);
}
public static BindingComponent Binding()
{
BindingComponent binding = new BindingComponent($"@binding{_bindingIndex}");
if (_bindingIndex + 1 == int.MaxValue)
{
_bindingIndex = -1;
}
_bindingIndex += 1;
return(binding);
}
public DataBindingService Bind <T>(string branch, BindingComponent <T> component)
{
if (!string.IsNullOrEmpty(branch))
{
var data = GetData <T>(branch);
if (data == null)
{
AddData <T>(branch, default(T), true);
data = GetData <T>(branch);
}
if (!data.bindedComponents.Contains(component))
{
data.bindedComponents.Add(component);
component.OnValueChanged(data.branch, data.value);
}
}
return(this);
}
private async Task<FrameworkElement> GetControlFrom(BindingComponent bind, Type modelType)
{
PropertyInfo info = modelType.GetProperty(bind.PropertyName);
Control control = new TextBox();
TextBlock label = new TextBlock() { Text = bind.DisplayName };
control.SetBinding(TextBox.TextProperty, info.Name);
if (info.PropertyType == typeof(DateTime))
{
control = new DatePicker() { DisplayDateStart = new DateTime(1960, 1, 1)};
if (!IsEdit)
{
info.SetValue(Item, DateTime.Now);
}
control.SetBinding(DatePicker.SelectedDateProperty, info.Name);
}
if (info.PropertyType.IsEnum)
{
var list = Enum.GetNames(info.PropertyType);
control = new ComboBox();
if (list.Length > 0)
{
(control as ComboBox).ItemsSource = list;
(control as ComboBox).SetBinding(ComboBox.SelectedItemProperty, bind.PropertyName);
if (!IsEdit)
{
(control as ComboBox).SelectedIndex = 0;
info.SetValue(Item, Enum.Parse(info.PropertyType, (control as ComboBox).SelectedItem.ToString()));
}
else
{
var value = info.GetValue(Item);
(control as ComboBox).SelectedItem = Enum.GetName(info.PropertyType, value);
}
}
}
if(bind.PropertyType == PropertyType.OuterPropertyId ||
bind.PropertyType == PropertyType.OuterPropertyIdNonVisible)
{
control = new ComboBox();
string outerPropName = bind.PropertyName.TrimEnd('I', 'd');
var outerProp = modelType.GetProperty(outerPropName);
await allDbContext.Set(outerProp.PropertyType).LoadAsync();
var list = await allDbContext.Set(outerProp.PropertyType).ToListAsync();
if (list.Count > 0)
{
(control as ComboBox).ItemsSource = list;
(control as ComboBox).SelectedValuePath = "Id";
(control as ComboBox).DisplayMemberPath = bind.DisplayMember;
(control as ComboBox).SetBinding(ComboBox.SelectedValueProperty, bind.PropertyName);
if (!IsEdit)
{
(control as ComboBox).SelectedIndex = 0;
info.SetValue(Item, (control as ComboBox).SelectedValue);
}
}
}
control.Margin = new Thickness(0, 5, 0, 0);
label.HorizontalAlignment = HorizontalAlignment.Left;
StackPanel stack = new StackPanel();
stack.Children.Add(label);
stack.Children.Add(control);
stack.Margin = new Thickness(0, 15, 0, 0);
return stack;
}
