public void Should_Bind_To_Element()
{
TextBlock source;
ContentControl target;
var root = new TestRoot
{
Child = new StackPanel
{
Children = new Controls.Controls
{
(source = new TextBlock
{
Name = "source",
Text = "foo",
}),
(target = new ContentControl
{
Name = "target",
})
}
}
};
var binding = new Binding
{
ElementName = "source",
};
target.Bind(ContentControl.ContentProperty, binding);
Assert.Same(source, target.Content);
}
public Form Panel <T>(string modelFieldName, Action <Form> populatePanel)
{
/*
* Here is documentation on how ContentControl works:
* https://docs.avaloniaui.net/docs/controls/contentcontrol
*/
var panelControl = new Avalonia.Controls.ContentControl();
if (!(getModelValue(modelFieldName) is T))
{
throw new Exception(
$"Model {nameof(modelFieldName)} source property specified by name [{modelFieldName}] is not of type T: {typeof(T).Name}");
}
/*
* One Way binding, because the ContentControl cannot set the model back, it just displays the model
*/
AddBinding <object>(modelFieldName: modelFieldName,
control: panelControl,
property: Avalonia.Controls.ContentControl.ContentProperty,
isTwoWayDataBinding: false);
panelControl.ContentTemplate = new Avalonia.Controls.Templates.FuncDataTemplate <T>((itemModel, nameScope) =>
{
// if the model is null then just display nothing
if (itemModel == null)
{
// how could itemModel be null? Sometimes it is though, so strange
var tb = new Avalonia.Controls.TextBlock();
tb.Text = "(null)";
return(tb);
}
var contentForm = new Form(__app: this.app, _model: new lib.BindableDynamicDictionary());
contentForm.DataContext = itemModel;
populatePanel(contentForm);
contentForm.Host.DataContext = itemModel;
return(contentForm.Host);
});
AddRowToHost(panelControl);
return(this);
}
internal ContentPresenter(ContentControl templatedParent)
{
this.Content = templatedParent.Content;
}
internal ContentPresenter(ContentControl templatedParent)
{
this.Content = templatedParent.Content;
}
public void AvaloniaObject_this_Operator_Accepts_Binding()
{
var target = new ContentControl
{
DataContext = new { Foo = "foo" }
};
target[!ContentControl.ContentProperty] = new Binding("Foo");
Assert.Equal("foo", target.Content);
}
public void Should_Bind_To_Later_Added_Element()
{
ContentControl target;
StackPanel stackPanel;
var root = new TestRoot
{
Child = stackPanel = new StackPanel
{
Children = new Controls.Controls
{
(target = new ContentControl
{
Name = "target",
}),
}
}
};
var binding = new Binding
{
ElementName = "source",
};
target.Bind(ContentControl.ContentProperty, binding);
var source = new TextBlock
{
Name = "source",
Text = "foo",
};
stackPanel.Children.Add(source);
Assert.Same(source, target.Content);
}