public void ExpressionEvaluator_Complex_EvaluateInRootDataContext()
{
var view = new RedwoodView()
{
DataContext = new TestViewModel() { SubObject = new TestViewModel2() { Value = "hello" } },
Children =
{
new HtmlGenericControl("html")
{
Children =
{
new TextBox()
{
ID = "txb"
}
}
}
.WithBinding(RedwoodBindableControl.DataContextProperty, new ValueBindingExpression("SubObject"))
}
};
var textbox = view.FindControl("txb") as TextBox;
var evaluator = new ExpressionEvaluator();
var result = evaluator.Evaluate(new ValueBindingExpression("Value"), RedwoodBindableControl.DataContextProperty, textbox);
Assert.IsInstanceOfType(result, typeof(string));
Assert.AreEqual("hello", result);
}
public void ExpressionEvaluator_UpdateSource_Simple()
{
var viewModel = new TestViewModel() { SubObject = new TestViewModel2() { Value = "hello" } };
var view = new RedwoodView()
{
DataContext = viewModel,
Children =
{
new HtmlGenericControl("html")
{
Children =
{
new TextBox()
{
ID = "txb"
}
.WithBinding(TextBox.TextProperty, new ValueBindingExpression("Value"))
}
}
.WithBinding(RedwoodBindableControl.DataContextProperty, new ValueBindingExpression("SubObject"))
}
};
var textbox = view.FindControl("txb") as TextBox;
var binding = textbox.GetBinding(TextBox.TextProperty) as ValueBindingExpression;
binding.UpdateSource("test", textbox, TextBox.TextProperty);
Assert.AreEqual("test", viewModel.SubObject.Value);
}
/// <summary>
/// Resolves the command for the specified post data.
/// </summary>
public void ResolveCommand(RedwoodRequestContext context, RedwoodView view, string serializedPostData, out ActionInfo actionInfo)
{
// get properties
var data = JObject.Parse(serializedPostData);
var path = data["currentPath"].Values<string>().ToArray();
var command = data["command"].Value<string>();
var controlUniqueId = data["controlUniqueId"].Value<string>();
if (string.IsNullOrEmpty(command))
{
// empty command
actionInfo = null;
}
else
{
// find the command target
if (!string.IsNullOrEmpty(controlUniqueId))
{
var target = view.FindControl(controlUniqueId);
if (target == null)
{
throw new Exception(string.Format("The control with ID '{0}' was not found!", controlUniqueId));
}
actionInfo = commandResolver.GetFunction(target, view, context, path, command);
}
else
{
actionInfo = commandResolver.GetFunction(view, context, path, command);
}
}
}