public void ChildBindingWithNameShouldUpdateProperly()
{
var item = new BindObject();
var binding = Eto.Forms.Binding.Property <int>("ChildBindObject.IntProperty");
int changed = 0;
binding.AddValueChangedHandler(item, (sender, e) => changed++);
BindObject oldChild;
item.ChildBindObject = oldChild = new BindObject();
Assert.AreEqual(1, changed);
Assert.AreEqual(0, binding.GetValue(item));
item.ChildBindObject.IntProperty = 2;
Assert.AreEqual(2, changed);
Assert.AreEqual(2, binding.GetValue(item));
item.ChildBindObject = new BindObject {
IntProperty = 3
};
Assert.AreEqual(3, changed);
Assert.AreEqual(3, binding.GetValue(item));
oldChild.IntProperty = 4; // we should not be hooked into change events of the old child, since we have a new one now!
Assert.AreEqual(3, changed);
Assert.AreEqual(3, binding.GetValue(item));
}
public void DoublePropertyShouldUpdate()
{
var bindObject = new BindObject {
DoubleProperty = 0
};
var binding = new ObjectBinding <double>(bindObject, "DoubleProperty");
Assert.AreEqual(binding.DataValue, bindObject.DoubleProperty, "Data value should equal object value");
binding.DataValue = 1.2;
Assert.AreEqual(binding.DataValue, bindObject.DoubleProperty, "Data value should equal object value");
}
public void IntPropertyShouldUpdate()
{
var bindObject = new BindObject {
IntProperty = 0
};
var binding = new ObjectBinding <int>(bindObject, "IntProperty");
Assert.AreEqual(binding.DataValue, bindObject.IntProperty, "Data value should equal object value");
binding.DataValue = 1;
Assert.AreEqual(binding.DataValue, bindObject.IntProperty, "Data value should equal object value");
}
public void StringPropertyShouldUpdate()
{
var bindObject = new BindObject {
StringProperty = "Initial Value"
};
var binding = new ObjectBinding <string>(bindObject, "StringProperty");
Assert.AreEqual(binding.DataValue, bindObject.StringProperty, "Data value should equal object value");
binding.DataValue = "Other Value";
Assert.AreEqual(binding.DataValue, bindObject.StringProperty, "Data value should equal object value");
binding.DataValue = null;
Assert.AreEqual(binding.DataValue, bindObject.StringProperty, "Data value should equal object value");
}
public void BoolPropertyShouldUpdate()
{
var bindObject = new BindObject {
BoolProperty = true
};
var binding = new ObjectBinding <bool>(bindObject, "BoolProperty");
Assert.AreEqual(binding.DataValue, bindObject.BoolProperty, "Data value should equal object value");
binding.DataValue = false;
Assert.AreEqual(binding.DataValue, bindObject.BoolProperty, "Data value should equal object value");
binding.DataValue = true;
Assert.AreEqual(binding.DataValue, bindObject.BoolProperty, "Data value should equal object value");
}
public void NonExistantPropertyShouldNotCrash()
{
var item = new BindObject();
var binding = Eto.Forms.Binding.Property <int?>("SomePropertyThatDoesntExist");
int changed = 0;
EventHandler <EventArgs> valueChanged = (sender, e) => changed++;
var changeReference = binding.AddValueChangedHandler(item, valueChanged);
Assert.AreEqual(0, changed);
Assert.AreEqual(null, binding.GetValue(item));
Assert.DoesNotThrow(() => binding.SetValue(item, 123));
binding.RemoveValueChangedHandler(changeReference, valueChanged);
}
public void InternalPropertyShouldBeAccessible()
{
var item = new BindObject {
InternalStringProperty = "some value"
};
var binding = Eto.Forms.Binding.Property <string>("InternalStringProperty");
int changed = 0;
EventHandler <EventArgs> valueChanged = (sender, e) => changed++;
var changeReference = binding.AddValueChangedHandler(item, valueChanged);
Assert.AreEqual(0, changed);
Assert.AreEqual("some value", binding.GetValue(item));
Assert.DoesNotThrow(() => binding.SetValue(item, "some other value"));
Assert.AreEqual(1, changed);
Assert.AreEqual("some other value", binding.GetValue(item));
binding.RemoveValueChangedHandler(changeReference, valueChanged);
}
public void BindingWithNameShouldUpdateProperly()
{
var item = new BindObject();
var binding = Eto.Forms.Binding.Property <int>("IntProperty");
int changed = 0;
binding.AddValueChangedHandler(item, (sender, e) => changed++);
Assert.AreEqual(0, changed);
Assert.AreEqual(0, binding.GetValue(item));
item.IntProperty = 2;
Assert.AreEqual(1, changed);
Assert.AreEqual(2, binding.GetValue(item));
item.IntProperty = 4;
Assert.AreEqual(2, changed);
Assert.AreEqual(4, binding.GetValue(item));
}
