public void Remove_NullDataBinding_ThrowsArgumentNullException()
{
var control = new Control();
var collection = new ControlBindingsCollection(control);
var binding = new Binding(null, new object(), "member");
collection.Add(binding);
Assert.Throws <ArgumentNullException>("dataBinding", () => collection.Remove(null));
Assert.Same(binding, Assert.Single(collection));
}
public void Remove_NoSuchDataBinding_ThrowsArgumentException()
{
using var control = new Control();
var collection = new ControlBindingsCollection(control);
var binding1 = new Binding(null, new object(), "member");
var binding2 = new Binding(null, new object(), "member");
collection.Add(binding1);
Assert.Throws <ArgumentException>("dataBinding", () => collection.Remove(binding2));
Assert.Same(binding1, Assert.Single(collection));
}
public void Remove_Invoke_Success()
{
var control = new Control();
var collection = new ControlBindingsCollection(control);
var binding = new Binding(null, new object(), "member");
collection.Add(binding);
Assert.Same(binding, Assert.Single(collection));
Assert.Same(control, binding.BindableComponent);
collection.Remove(binding);
Assert.Empty(collection);
Assert.Null(binding.BindableComponent);
}
private static void SetBinding(ControlBindingsCollection bindings, PropertyDescriptor property, DesignBinding designBinding)
{
if (designBinding != null)
{
Binding binding = bindings[property.Name];
if (binding != null)
{
bindings.Remove(binding);
}
if (!designBinding.IsNull)
{
bindings.Add(property.Name, designBinding.DataSource, designBinding.DataMember);
}
}
}
public void Remove_DataBindingFromOtherCollection_ThrowsArgumentException()
{
var control1 = new Control();
var control2 = new Control();
var collection1 = new ControlBindingsCollection(control1);
var collection2 = new ControlBindingsCollection(control2);
var binding1 = new Binding(null, new object(), "member");
var binding2 = new Binding(null, new object(), "member");
collection1.Add(binding1);
collection2.Add(binding2);
Assert.Throws <ArgumentException>("dataBinding", () => collection2.Remove(binding1));
Assert.Same(binding1, Assert.Single(collection1));
Assert.Same(binding2, Assert.Single(collection2));
}
private static void SetBinding(ControlBindingsCollection bindings, PropertyDescriptor property, DesignBinding designBinding)
{
// this means it couldn't be parsed.
if (designBinding == null)
{
return;
}
Binding listBinding = bindings[property.Name];
if (listBinding != null)
{
bindings.Remove(listBinding);
}
if (!designBinding.IsNull)
{
bindings.Add(property.Name, designBinding.DataSource, designBinding.DataMember);
}
}
public void CollectionChangingTest()
{
Control c = new Control();
c.BindingContext = new BindingContext();
c.CreateControl();
ControlBindingsCollection binding_coll = c.DataBindings;
Binding binding = new Binding("Text", new MockItem("A", 0), "Text");
Binding binding2 = new Binding("Name", new MockItem("B", 0), "Text");
binding_coll.Add(binding);
binding_coll.CollectionChanging += CollectionChangingHandler;
collection_expected_count = 1;
collection_action_expected = CollectionChangeAction.Add;
collection_element_expected = binding2;
collection_expected_assert = "#A0";
binding_coll.Add(binding2);
Assert.IsTrue(collection_changing_called, "#A1");
collection_changing_called = false;
collection_expected_count = 2;
collection_action_expected = CollectionChangeAction.Remove;
collection_element_expected = binding;
collection_expected_assert = "#B0";
binding_coll.Remove(binding);
Assert.IsTrue(collection_changing_called, "#B1");
collection_changing_called = false;
collection_expected_count = 1;
collection_element_expected = null;
collection_action_expected = CollectionChangeAction.Refresh;
collection_expected_assert = "#C0";
binding_coll.Clear();
Assert.IsTrue(collection_changing_called, "#C1");
}
