public static DualBinding Bind(this Control control, IndirectBinding controlBinding, object objectValue, IndirectBinding objectBinding, DualBindingMode mode = DualBindingMode.TwoWay, object defaultControlValue = null, object defaultContextValue = null)
{
var valueBinding = new ObjectBinding(objectValue, objectBinding)
{
SettingNullValue = defaultContextValue,
GettingNullValue = defaultControlValue
};
return(Bind(control, controlBinding, valueBinding, mode));
}
public static DualBinding Bind (this Widget widget, string widgetPropertyName, ObjectBinding sourceBinding, DualBindingMode mode = DualBindingMode.TwoWay)
{
var binding = new DualBinding (
sourceBinding,
new ObjectSingleBinding(widget, widgetPropertyName),
mode
);
widget.Bindings.Add (binding);
return binding;
}
public DualBinding (ObjectBinding source, ObjectBinding destination, DualBindingMode mode = DualBindingMode.TwoWay)
{
this.Source = source;
this.Destination = destination;
if (mode == DualBindingMode.OneWay || mode == DualBindingMode.TwoWay)
source.DataValueChanged += HandleSourceChanged;
if (mode == DualBindingMode.OneWayToSource || mode == DualBindingMode.TwoWay)
destination.DataValueChanged += HandleDestinationChanged;
// set initial value
this.SetDestination ();
}
public static DualBinding Bind(this ObjectBinding controlBinding, DirectBinding valueBinding, DualBindingMode mode = DualBindingMode.TwoWay)
{
var binding = new DualBinding(
valueBinding,
controlBinding,
mode
);
var control = controlBinding.DataItem as Control;
if (control != null)
{
control.Bindings.Add(binding);
}
return(binding);
}
/// <summary>
/// Adds a new binding with the widget and the the widget's current data context
/// </summary>
/// <remarks>
/// This binds to a property of the <see cref="InstanceWidget.DataContext"/>, which will return the topmost value
/// up the control hierarchy. For example, you can set the DataContext of your form or panel, and then bind to properties
/// of that context on any of the child controls such as a text box, etc.
/// </remarks>
/// <param name="widget">Widget to add the binding to</param>
/// <param name="widgetPropertyName">Property on the widget to update</param>
/// <param name="dataContextPropertyName">Property on the widget's <see cref="InstanceWidget.DataContext"/> to bind to the widget</param>
/// <param name="mode">Mode of the binding</param>
/// <returns>A new instance of the DualBinding class that is used to control the binding</returns>
public static DualBinding Bind (this InstanceWidget widget, string widgetPropertyName, string dataContextPropertyName, DualBindingMode mode = DualBindingMode.TwoWay)
{
var contextBinding = new ObjectBinding(widget, "DataContext");
var valueBinding = new ObjectBinding(contextBinding.DataValue, dataContextPropertyName);
contextBinding.DataValueChanged += delegate {
valueBinding.DataItem = contextBinding.DataValue;
};
var binding = new DualBinding (
valueBinding,
new ObjectBinding(widget, widgetPropertyName),
mode
);
widget.Bindings.Add (contextBinding);
widget.Bindings.Add (binding);
return binding;
}
/// <summary>
/// Adds a new binding with the widget and the the widget's current data context
/// </summary>
/// <remarks>
/// This binds to a property of the <see cref="InstanceWidget.DataContext"/>, which will return the topmost value
/// up the control hierarchy. For example, you can set the DataContext of your form or panel, and then bind to properties
/// of that context on any of the child controls such as a text box, etc.
/// </remarks>
/// <param name="widget">Widget to add the binding to</param>
/// <param name="widgetPropertyName">Property on the widget to update</param>
/// <param name="dataContextPropertyName">Property on the widget's <see cref="InstanceWidget.DataContext"/> to bind to the widget</param>
/// <param name="mode">Mode of the binding</param>
/// <returns>A new instance of the DualBinding class that is used to control the binding</returns>
public static DualBinding Bind(this InstanceWidget widget, string widgetPropertyName, string dataContextPropertyName, DualBindingMode mode = DualBindingMode.TwoWay)
{
var contextBinding = new ObjectBinding(widget, "DataContext");
var valueBinding = new ObjectBinding(contextBinding.DataValue, dataContextPropertyName);
contextBinding.DataValueChanged += delegate {
valueBinding.DataItem = contextBinding.DataValue;
};
var binding = new DualBinding(
valueBinding,
new ObjectBinding(widget, widgetPropertyName),
mode
);
widget.Bindings.Add(contextBinding);
widget.Bindings.Add(binding);
return(binding);
}
public static DualBinding Bind(this ObjectBinding controlBinding, IndirectBinding dataContextBinding, DualBindingMode mode = DualBindingMode.TwoWay, object defaultControlValue = null, object defaultContextValue = null)
{
var control = controlBinding.DataItem as Control;
if (control == null)
{
throw new ArgumentOutOfRangeException("controlBinding", "Binding must be attached to a control");
}
var contextBinding = new ObjectBinding(control, new DelegateBinding <Control, object>(w => w.DataContext, null, (w, h) => w.DataContextChanged += h, (w, h) => w.DataContextChanged -= h));
var valueBinding = new ObjectBinding(control.DataContext, dataContextBinding)
{
GettingNullValue = defaultControlValue,
SettingNullValue = defaultContextValue
};
DualBinding binding = Bind(controlBinding: controlBinding, valueBinding: valueBinding, mode: mode);
contextBinding.DataValueChanged += delegate
{
((ObjectBinding)binding.Source).DataItem = contextBinding.DataValue;
};
control.Bindings.Add(contextBinding);
return(binding);
}
public DualBinding Bind <TObject>(TObject objectValue, DelegateBinding <TObject, TValue> objectBinding, DualBindingMode mode = DualBindingMode.TwoWay)
{
var valueBinding = new ObjectBinding(objectValue, objectBinding);
return(BindingExtensions.Bind(controlBinding: this, valueBinding: valueBinding, mode: mode));
}
