/// <summary>
/// Binds to the specified child <paramref name="binding"/> of this binding.
/// </summary>
/// <remarks>
/// This can be used to bind to child objects of your view model, for example
/// <code>model.SomeProperty.ChildProperty</code>.
/// </remarks>
/// <example>
/// Use this like so:
/// <code>
/// public class MyChild { public SomeChildProperty { get; set; } }
/// public class MyModel { public ChildObject { get; set; } }
///
/// var model = new MyModel();
/// Binding.Property(model, (MyModel m) => m.ChildObject).Child(Binding.Property("SomeChildProperty"));
/// </code>
/// </example>
/// <returns>The binding to the child property accessed through the current binding.</returns>
/// <param name="binding">Binding to get the child value from this binding.</param>
/// <typeparam name="TValue">The type of the child property value.</typeparam>
public DirectBinding <TValue> Child <TValue>(IndirectBinding <TValue> binding)
{
object childBindingReference = null;
EventHandler <EventArgs> eventHandler = null;
EventHandler <EventArgs> valueChanged = (sender, e) =>
{
binding.RemoveValueChangedHandler(childBindingReference, eventHandler);
eventHandler?.Invoke(sender, e);
childBindingReference = binding.AddValueChangedHandler(DataValue, eventHandler);
};
return(new DelegateBinding <TValue>(
() => binding.GetValue(DataValue),
v => binding.SetValue(DataValue, v),
addChangeEvent: ev =>
{
eventHandler = ev;
DataValueChanged += valueChanged;
childBindingReference = binding.AddValueChangedHandler(DataValue, ev);
},
removeChangeEvent: ev =>
{
binding.RemoveValueChangedHandler(childBindingReference, ev);
DataValueChanged -= valueChanged;
}
));
}
/// <summary>
/// Binds to the specified child <paramref name="binding"/> of this binding.
/// </summary>
/// <remarks>
/// This can be used to bind to child objects of your view model, for example
/// <code>model.SomeProperty.ChildProperty</code>.
/// </remarks>
/// <example>
/// Use this like so:
/// <code>
/// public class MyChild { public SomeChildProperty { get; set; } }
/// public class MyModel { public ChildObject { get; set; } }
///
/// var model = new MyModel();
/// Binding.Property(model, (MyModel m) => m.ChildObject).Child(Binding.Property("SomeChildProperty"));
/// </code>
/// </example>
/// <returns>The binding to the child property accessed through the current binding.</returns>
/// <param name="binding">Binding to get the child value from this binding.</param>
/// <typeparam name="TNewValue">The type of the child property value.</typeparam>
public new BindableBinding <T, TNewValue> Child <TNewValue>(IndirectBinding <TNewValue> binding)
{
object childBindingReference = null;
EventHandler <EventArgs> eventHandler = null;
EventHandler <EventArgs> valueChanged = (sender, e) =>
{
binding.RemoveValueChangedHandler(childBindingReference, eventHandler);
eventHandler?.Invoke(sender, e);
childBindingReference = binding.AddValueChangedHandler(DataValue, eventHandler);
};
return(new BindableBinding <T, TNewValue>(
DataItem,
c => binding.GetValue(DataValue),
(c, v) => binding.SetValue(DataValue, v),
addChangeEvent: (c, ev) =>
{
eventHandler = ev;
DataValueChanged += valueChanged;
childBindingReference = binding.AddValueChangedHandler(DataValue, ev);
},
removeChangeEvent: (c, ev) =>
{
binding.RemoveValueChangedHandler(childBindingReference, ev);
DataValueChanged -= valueChanged;
}
));
}
/// <summary>
/// Binds to the specified child <paramref name="binding"/> of this binding.
/// </summary>
/// <remarks>
/// This can be used to bind to child objects of your view model, for example
/// <code>model.SomeProperty.ChildProperty</code>.
/// </remarks>
/// <example>
/// Use this like so:
/// <code>
/// public class MyChild { public SomeChildProperty { get; set; } }
/// public class MyModel { public ChildObject { get; set; } }
///
/// Binding.Property((MyModel m) => m.ChildObject).Child(Binding.Property("SomeChildProperty"));
/// </code>
/// </example>
/// <returns>The binding to the child property accessed through the current binding.</returns>
/// <param name="binding">Binding to get the child value from this binding.</param>
/// <typeparam name="TNewValue">The type of the child property value.</typeparam>
public IndirectBinding <TNewValue> Child <TNewValue>(IndirectBinding <TNewValue> binding)
{
object bindingReference = null;
object childBindingReference = null;
object context = null;
EventHandler <EventArgs> eventHandler = null;
EventHandler <EventArgs> valueChanged = (sender, e) =>
{
binding.RemoveValueChangedHandler(childBindingReference, eventHandler);
eventHandler?.Invoke(sender, e);
childBindingReference = binding.AddValueChangedHandler(GetValue(context), eventHandler);
};
return(new DelegateBinding <object, TNewValue>(
c => binding.GetValue(GetValue(context = c)),
(c, v) => binding.SetValue(GetValue(context = c), v),
addChangeEvent: (c, ev) =>
{
context = c;
eventHandler = ev;
bindingReference = AddValueChangedHandler(c, valueChanged);
childBindingReference = binding.AddValueChangedHandler(GetValue(c), ev);
},
removeChangeEvent: (c, ev) =>
{
binding.RemoveValueChangedHandler(childBindingReference, ev);
RemoveValueChangedHandler(bindingReference, valueChanged);
}
));
}
/// <summary>
/// Binds a control property to a <see cref="BindableWidget.DataContext"/> property
/// </summary>
/// <param name="control">Control to bind to.</param>
/// <param name="controlProperty">Control property.</param>
/// <param name="sourceProperty">Source property from the data context.</param>
/// <param name="mode">Mode of the binding.</param>
/// <param name="defaultControlValue">Default control value, if the control value is null.</param>
/// <param name="defaultContextValue">Default context value, if the context value is null.</param>
/// <typeparam name="TWidget">The type of control.</typeparam>
/// <typeparam name="TContext">The type of the data context object.</typeparam>
/// <typeparam name="TValue">The type of the property.</typeparam>
public static DualBinding <TValue> BindDataContext <TWidget, TContext, TValue>(this TWidget control, Expression <Func <TWidget, TValue> > controlProperty, Expression <Func <TContext, TValue> > sourceProperty, DualBindingMode mode = DualBindingMode.TwoWay, TValue defaultControlValue = default(TValue), TValue defaultContextValue = default(TValue))
where TWidget : IBindable
{
IndirectBinding <TValue> controlBinding = Binding.Property(controlProperty);
IndirectBinding <TValue> sourceBinding = Binding.Property(sourceProperty);
return(control.BindDataContext(controlBinding, sourceBinding, mode, defaultControlValue, defaultContextValue));
}
/// <summary>
/// Executes a command retrieved using the specified <paramref name="commandBinding"/> from the <paramref name="dataContext"/>.
/// </summary>
/// <remarks>
/// This helper method is useful for binding general events to fire an <see cref="ICommand"/> that is in your view model.
/// The command will only be executed if its <see cref="ICommand.CanExecute"/> returns <c>true</c>.
///
/// Most controls (e.g. <see cref="Eto.Forms.Button"/>) have a special Command parameter that can be set instead,
/// which takes into account the enabled state of the command and will enable/disable the control automatically.
/// </remarks>
/// <example>
/// This example will fire the MyModel.MyCommand when the mouse is down on the specified panel.
/// The MyModel instance is based off the panel's current DataContext.
/// <code>
/// var panel = new Panel();
/// panel.MouseDown += (sender, e) => Binding.ExecuteCommand(panel.DataContext, Binding.Property((MyModel m) => m.MyCommand));
/// </code>
/// </example>
/// <param name="dataContext">Data context object to get the ICommand via the commandBinding.</param>
/// <param name="commandBinding">Binding to get the ICommand from the data context</param>
/// <param name="parameter">Parameter to pass to the command when executing or checking if it can execute.</param>
public static void ExecuteCommand(object dataContext, IndirectBinding <ICommand> commandBinding, object parameter = null)
{
var command = commandBinding.GetValue(dataContext);
if (command != null && command.CanExecute(parameter))
{
command.Execute(parameter);
}
}
public DualBinding Bind(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(controlBinding, valueBinding, mode));
}
/// <summary>
/// Adds a new binding to the control with an indirect binding to the provided <paramref name="objectValue"/>
/// </summary>
/// <param name="controlBinding">Binding to get/set the value from the control.</param>
/// <param name="objectValue">Object value to bind to.</param>
/// <param name="objectBinding">Binding to get/set the value from the <paramref name="objectValue"/>.</param>
/// <param name="mode">Mode of the binding.</param>
/// <param name="defaultControlValue">Default control value to set to the objectValue, if the value of the control property is null.</param>
/// <param name="defaultContextValue">Default context value to set to the control, if the objectValue or value of the objectBinding is null.</param>
public DualBinding <T> Bind <T>(IndirectBinding <T> controlBinding, object objectValue, IndirectBinding <T> objectBinding, DualBindingMode mode = DualBindingMode.TwoWay, T defaultControlValue = default(T), T defaultContextValue = default(T))
{
var valueBinding = new ObjectBinding <object, T>(objectValue, objectBinding)
{
SettingNullValue = defaultContextValue,
GettingNullValue = defaultControlValue
};
return(Bind(controlBinding, valueBinding, mode));
}
/// <summary>
/// Creates a new indirect property binding using the specified <paramref name="propertyName"/>.
/// </summary>
/// <remarks>
/// This supports single and multiple levels of property accessors in the model.
/// </remarks>
/// <example>
/// Use this like so:
/// <code>
/// public class MyChild { public SomeChildProperty { get; set; } }
/// public class MyModel {
/// public ChildObject { get; set; }
/// public int IntProperty { get; set; }
/// }
///
/// // direct property binding
/// Binding.Property("IntProperty");
///
/// // bind to a property of a child object of the view model
/// Binding.Property("ChildObject.SomeChildProperty");
/// </code>
/// </example>
/// <param name="propertyName">Name of the property to bind to.</param>
/// <param name="ignoreCase">True to ignore case of the property name, false to match the property name exactly.</param>
/// <typeparam name="TValue">The type of the property.</typeparam>
public static IndirectBinding <TValue> Property <TValue>(string propertyName, bool ignoreCase)
{
if (propertyName.IndexOf('.') > 0)
{
var props = propertyName.Split('.');
IndirectBinding <object> prop = null;
for (int i = 0; i < props.Length - 1; i++)
{
var pp = new PropertyBinding <object>(props[i], ignoreCase);
prop = prop?.Child(pp) ?? pp;
}
return(prop.Child(new PropertyBinding <TValue>(props[props.Length - 1], ignoreCase)));
}
return(new PropertyBinding <TValue>(propertyName, ignoreCase));
}
/// <summary>
/// Creates a new indirect property binding using the specified <paramref name="propertyExpression"/>.
/// </summary>
/// <remarks>
/// This supports single and multiple levels of property accessors in the model.
/// </remarks>
/// <example>
/// Use this like so:
/// <code>
/// public class MyChild { public SomeChildProperty { get; set; } }
/// public class MyModel {
/// public ChildObject { get; set; }
/// public int IntProperty { get; set; }
/// }
///
/// // direct property binding
/// Binding.Property((MyModel m) => m.IntProperty);
///
/// // bind to a property of a child object of the view model
/// Binding.Property((MyModel m) => m.ChildObject.SomeChildProperty);
/// </code>
/// </example>
/// <param name="propertyExpression">Expression of the property to bind to.</param>
/// <typeparam name="T">The type of the model.</typeparam>
/// <typeparam name="TValue">The property value type.</typeparam>
public static IndirectBinding <TValue> Property <T, TValue>(Expression <Func <T, TValue> > propertyExpression)
{
var memberInfo = propertyExpression.GetMemberInfo();
if (memberInfo == null)
{
// not a direct property expression, use a delegate to get value (but there will not be a way to set the value)
var getValue = propertyExpression.Compile();
return(Delegate(getValue));
}
var parentMember = memberInfo.Expression as MemberExpression;
if (parentMember != null)
{
// go up parent heirarchy to get all the members
var props = new List <MemberExpression>();
do
{
props.Add(parentMember);
var current = parentMember.Expression;
if (current.NodeType != ExpressionType.MemberAccess && current.NodeType != ExpressionType.Parameter)
{
return(Delegate(propertyExpression.Compile()));
}
parentMember = current as MemberExpression;
} while (parentMember != null);
props.Reverse();
IndirectBinding <object> prop = null;
foreach (var p in props)
{
var pp = new PropertyBinding <object>(p.Member.Name);
prop = prop?.Child(pp) ?? pp;
}
// support multiple property access, e.g. m => m.Child.Property
return(prop.Child(new PropertyBinding <TValue>(memberInfo.Member.Name)));
}
// not using the parameter of the expression
if (memberInfo.Expression.NodeType != ExpressionType.Parameter)
{
return(Delegate(propertyExpression.Compile()));
}
return(new PropertyBinding <TValue>(memberInfo.Member.Name));
}
/// <summary>
/// Binds to the specified child <paramref name="binding"/> of this binding.
/// </summary>
/// <remarks>
/// This can be used to bind to child objects of your view model, for example
/// <code>model.SomeProperty.ChildProperty</code>.
/// </remarks>
/// <example>
/// Use this like so:
/// <code>
/// public class MyChild { public SomeChildProperty { get; set; } }
/// public class MyModel { public ChildObject { get; set; } }
///
/// var model = new MyModel();
/// Binding.Property(model, (MyModel m) => m.ChildObject).Child(Binding.Property("SomeChildProperty"));
/// </code>
/// </example>
/// <returns>The binding to the child property accessed through the current binding.</returns>
/// <param name="binding">Binding to get the child value from this binding.</param>
/// <typeparam name="TValue">The type of the child property value.</typeparam>
public DirectBinding <TValue> Child <TValue>(IndirectBinding <TValue> binding)
{
object childBindingReference = null;
EventHandler <EventArgs> eventHandler = null;
void valueChanged(object sender, EventArgs e)
{
binding.RemoveValueChangedHandler(childBindingReference, eventHandler);
eventHandler?.Invoke(sender, e);
childBindingReference = binding.AddValueChangedHandler(DataValue, eventHandler);
}
void setValueStruct(TValue v)
{
object parentValue = DataValue;
binding.SetValue(parentValue, v);
DataValue = (T)parentValue;
}
void setValueObject(TValue v) => binding.SetValue(DataValue, v);
var isStruct = typeof(T).GetTypeInfo().IsValueType;
return(new DelegateBinding <TValue>(
() => binding.GetValue(DataValue),
isStruct ? (Action <TValue>)setValueStruct : setValueObject,
addChangeEvent: ev =>
{
eventHandler = ev;
DataValueChanged += valueChanged;
childBindingReference = binding.AddValueChangedHandler(DataValue, ev);
},
removeChangeEvent: ev =>
{
binding.RemoveValueChangedHandler(childBindingReference, ev);
DataValueChanged -= valueChanged;
}
));
}
/// <summary>
/// Binds to an object's <see cref="IBindable.DataContext"/> using the specified <paramref name="dataContextBinding"/>.
/// </summary>
/// <remarks>
/// This creates a <see cref="DualBinding{TValue}"/> between a binding to the specified <paramref name="dataContextBinding"/> and this binding.
/// Since the data context changes, the binding passed for the data context binding is an indirect binding, in that it is reused.
/// The binding is added to the <see cref="IBindable.Bindings"/> collection.
/// </remarks>
/// <returns>A new dual binding that binds the <paramref name="dataContextBinding"/> to this control binding.</returns>
/// <param name="dataContextBinding">Binding to get/set values from/to the control's data context.</param>
/// <param name="mode">Dual binding mode.</param>
/// <param name="defaultControlValue">Default control value.</param>
/// <param name="defaultContextValue">Default context value.</param>
public DualBinding <TValue> BindDataContext(IndirectBinding <TValue> dataContextBinding, DualBindingMode mode = DualBindingMode.TwoWay, TValue defaultControlValue = default(TValue), TValue defaultContextValue = default(TValue))
{
var control = DataItem;
if (control == null)
{
throw new InvalidOperationException("Binding must be attached to a control");
}
var contextBinding = new BindableBinding <IBindable, object>(control, Binding.Delegate((IBindable w) => w.DataContext, null, (w, h) => w.DataContextChanged += h, (w, h) => w.DataContextChanged -= h));
var valueBinding = new ObjectBinding <object, TValue>(control.DataContext, dataContextBinding)
{
GettingNullValue = defaultControlValue,
SettingNullValue = defaultContextValue,
DataItem = contextBinding.DataValue
};
DualBinding <TValue> binding = Bind(sourceBinding: valueBinding, mode: mode);
contextBinding.DataValueChanged += delegate
{
((ObjectBinding <object, TValue>)binding.Source).DataItem = contextBinding.DataValue;
};
control.Bindings.Add(contextBinding);
return(binding);
}
public ImageTextCell(string imageProperty, string textProperty)
: this()
{
ImageBinding = new PropertyBinding(imageProperty);
TextBinding = new PropertyBinding(textProperty);
}
/// <summary>
/// Adds a new binding to the control with a direct value binding
/// </summary>
/// <param name="bindable">Bindable object to add the binding to</param>
/// <param name="controlBinding">Binding to get/set the value from the control.</param>
/// <param name="valueBinding">Value binding to get/set the value from another source.</param>
/// <param name="mode">Mode of the binding</param>
public static DualBinding <T> Bind <T>(this IBindable bindable, IndirectBinding <T> controlBinding, DirectBinding <T> valueBinding, DualBindingMode mode = DualBindingMode.TwoWay)
{
var binding = new BindableBinding <IBindable, T>(bindable, controlBinding);
return(binding.Bind(sourceBinding: valueBinding, mode: mode));
}
/// <summary>
/// Binds a control property to the <paramref name="source"/> object using the <paramref name="sourceBinding"/>.
/// </summary>
/// <param name="control">Control to bind to.</param>
/// <param name="controlProperty">Control property expression.</param>
/// <param name="source">Source object to bind to.</param>
/// <param name="sourceBinding">Binding to get/set the value from the source.</param>
/// <param name="mode">Mode of the binding.</param>
/// <typeparam name="TWidget">The type of the control.</typeparam>
/// <typeparam name="TSource">The type of the source object.</typeparam>
/// <typeparam name="TValue">The type of the property.</typeparam>
public static DualBinding <TValue> Bind <TWidget, TSource, TValue>(this TWidget control, Expression <Func <TWidget, TValue> > controlProperty, TSource source, IndirectBinding <TValue> sourceBinding, DualBindingMode mode = DualBindingMode.TwoWay)
where TWidget : IBindable
{
return(control.Bind(Binding.Property(controlProperty), source, sourceBinding, mode));
}
/// <summary>
/// Initializes a new instance of the ChildBinding class
/// </summary>
/// <param name="parent">Binding from the parent to get the child</param>
/// <param name="child">Binding for the child to get the actual value</param>
public IndirectChildBinding(IndirectBinding <TParent> parent, IndirectBinding <TChild> child)
{
_parent = parent ?? throw new ArgumentNullException(nameof(parent));
_child = child ?? throw new ArgumentNullException(nameof(child));
}
/// <summary>
/// Binds a control property to the <paramref name="source"/> object using the <paramref name="sourceBinding"/>.
/// </summary>
/// <param name="control">Control to bind to.</param>
/// <param name="controlProperty">Control property expression.</param>
/// <param name="source">Source object to bind to.</param>
/// <param name="sourceBinding">Binding to get/set the value from the source.</param>
/// <param name="mode">Mode of the binding.</param>
/// <typeparam name="TWidget">The type of the control.</typeparam>
/// <typeparam name="TSource">The type of the source object.</typeparam>
/// <typeparam name="TValue">The type of the property.</typeparam>
public static DualBinding <TValue> Bind <TWidget, TSource, TValue>(this TWidget control, Expression <Func <TWidget, TValue> > controlProperty, TSource source, IndirectBinding <TValue> sourceBinding, DualBindingMode mode = DualBindingMode.TwoWay)
where TWidget : IBindable
{
var controlExpression = controlProperty.GetMemberInfo();
var binding = control.Bind <TValue>(new PropertyBinding <TValue>(controlExpression.Member.Name), source, sourceBinding, mode);
return(binding);
}
public ImageTextCell(int imageColumn, int textColumn)
: this()
{
ImageBinding = new ColumnBinding(imageColumn);
TextBinding = new ColumnBinding(textColumn);
}
public DualBinding Bind(IndirectBinding controlBinding, DirectBinding valueBinding, DualBindingMode mode = DualBindingMode.TwoWay)
{
var binding = new ObjectBinding(this, controlBinding);
return(binding.Bind(valueBinding: valueBinding, mode: mode));
}
/// <summary>
/// Initializes a new instance of the ObjectBinding with the specified object and binding to get/set values with
/// </summary>
/// <param name="dataItem">object to get/set values from</param>
/// <param name="innerBinding">binding to use to get/set the values from the dataItem</param>
public ObjectBinding(object dataItem, IndirectBinding <TValue> innerBinding)
: base(dataItem, innerBinding)
{
}
/// <summary>
/// Binds a control property to a <see cref="BindableWidget.DataContext"/> property
/// </summary>
/// <param name="control">Control to bind to.</param>
/// <param name="controlProperty">Control property.</param>
/// <param name="sourceBinding">Source binding to get/set the value on the data context.</param>
/// <param name="mode">Mode of the binding.</param>
/// <param name="defaultControlValue">Default control value, if the control value is null.</param>
/// <param name="defaultContextValue">Default context value, if the context value is null.</param>
/// <typeparam name="TWidget">The type of control.</typeparam>
/// <typeparam name="TValue">The type of the property.</typeparam>
public static DualBinding <TValue> BindDataContext <TWidget, TValue>(this TWidget control, Expression <Func <TWidget, TValue> > controlProperty, IndirectBinding <TValue> sourceBinding, DualBindingMode mode = DualBindingMode.TwoWay, TValue defaultControlValue = default(TValue), TValue defaultContextValue = default(TValue))
where TWidget : IBindable
{
var controlExpression = controlProperty.GetMemberInfo();
return(control.BindDataContext <TValue>(
new PropertyBinding <TValue>(controlExpression.Member.Name),
sourceBinding,
mode,
defaultControlValue,
defaultContextValue
));
}
/// <summary>
/// Adds a new binding from the control to its data context
/// </summary>
/// <param name="controlBinding">Binding to get/set the value from the control.</param>
/// <param name="dataContextBinding">Binding to get/set the value from the <see cref="Control.DataContext"/>.</param>
/// <param name="mode">Mode of the binding.</param>
/// <param name="defaultControlValue">Default control value to set to the objectValue, if the value of the control property is null.</param>
/// <param name="defaultContextValue">Default context value to set to the control, if the objectValue or value of the objectBinding is null.</param>
public DualBinding <T> BindDataContext <T>(IndirectBinding <T> controlBinding, IndirectBinding <T> dataContextBinding, DualBindingMode mode = DualBindingMode.TwoWay, T defaultControlValue = default(T), T defaultContextValue = default(T))
{
var binding = new ControlBinding <Control, T>(this, controlBinding);
return(binding.BindDataContext(dataContextBinding, mode, defaultControlValue, defaultContextValue));
}
/// <summary>
/// Adds a new binding to the control with a direct value binding
/// </summary>
/// <param name="controlBinding">Binding to get/set the value from the control.</param>
/// <param name="valueBinding">Value binding to get/set the value from another source.</param>
/// <param name="mode">Mode of the binding</param>
public DualBinding <T> Bind <T>(IndirectBinding <T> controlBinding, DirectBinding <T> valueBinding, DualBindingMode mode = DualBindingMode.TwoWay)
{
var binding = new ControlBinding <Control, T>(this, controlBinding);
return(binding.Bind(sourceBinding: valueBinding, mode: mode));
}
public DualBinding <TValue> Bind(IndirectBinding <TValue> dataContextBinding, DualBindingMode mode = DualBindingMode.TwoWay, TValue defaultControlValue = default(TValue), TValue defaultContextValue = default(TValue))
{
return(BindDataContext(dataContextBinding, mode, defaultControlValue, defaultContextValue));
}
/// <summary>
/// Initializes a new instance of the <see cref="ControlBinding{T,TValue}"/> class.
/// </summary>
/// <param name="dataItem">Control the binding is attached to.</param>
/// <param name="innerBinding">Inner binding.</param>
public BindableBinding(T dataItem, IndirectBinding <TValue> innerBinding)
: base(dataItem, innerBinding)
{
}
public DualBinding Bind(IndirectBinding controlBinding, IndirectBinding dataContextBinding, DualBindingMode mode = DualBindingMode.TwoWay, object defaultControlValue = null, object defaultContextValue = null)
{
var binding = new ObjectBinding(this, controlBinding);
return(binding.Bind(dataContextBinding, mode, defaultControlValue, defaultContextValue));
}
/// <summary>
/// Binds to the specified child <paramref name="binding"/> of this binding.
/// </summary>
/// <remarks>
/// This can be used to bind to child objects of your view model, for example
/// <code>model.SomeProperty.ChildProperty</code>.
/// </remarks>
/// <example>
/// Use this like so:
/// <code>
/// public class MyChild { public SomeChildProperty { get; set; } }
/// public class MyModel { public ChildObject { get; set; } }
///
/// Binding.Property((MyModel m) => m.ChildObject).Child(Binding.Property("SomeChildProperty"));
/// </code>
/// </example>
/// <returns>The binding to the child property accessed through the current binding.</returns>
/// <param name="binding">Binding to get the child value from this binding.</param>
/// <typeparam name="TNewValue">The type of the child property value.</typeparam>
public IndirectBinding <TNewValue> Child <TNewValue>(IndirectBinding <TNewValue> binding)
{
return(new IndirectChildBinding <T, TNewValue>(this, binding));
}
/// <summary>
/// Initializes a new instance of the <see cref="ControlBinding{T,TValue}"/> class.
/// </summary>
/// <param name="dataItem">Control the binding is attached to.</param>
/// <param name="innerBinding">Inner binding.</param>
public ControlBinding(T dataItem, IndirectBinding <TValue> innerBinding)
: base(dataItem, innerBinding)
{
}