public override Type GetChildDataContextType(Type dataContext, Type parentDataContext, DotvvmControl control)
{
var type = control.GetType();
var property = type.GetProperty(PropertyName);
if (property == null) throw new Exception($"property { PropertyName } does not exists on { type.FullName }.");
return property.GetValue(control).GetType();
}
public static CommandBindingExpression GetExtensionCommand(this DotvvmControl control, string methodUsageId)
{
var propertyName = control.GetType().FullName + "/" + methodUsageId;
var property = DotvvmProperty.ResolveProperty(typeof(PropertyBox), propertyName);
return(control.GetCommandBinding(property) as CommandBindingExpression);
}
public static CommandBindingExpression RegisterExtensionCommand(this DotvvmControl control, Delegate action, string methodUsageId)
{
var id = control.GetDotvvmUniqueId() + methodUsageId;
var propertyName = control.GetType().FullName + "/" + methodUsageId;
var property = DotvvmProperty.Register <object, ExtensionCommands>(propertyName);
var binding = new CommandBindingExpression(action, id);
control.SetBinding(property, binding);
return(binding);
}
public static CommandBindingExpression?GetExtensionCommand(this DotvvmControl control, string methodUsageId)
{
var propertyName = control.GetType().FullName + "/" + methodUsageId;
var property = DotvvmProperty.ResolveProperty(typeof(PropertyBox), propertyName);
if (property is null)
{
throw new Exception($"Extension command {propertyName} has not been registered.");
}
return(control.GetCommandBinding(property) as CommandBindingExpression);
}
public static CommandBindingExpression RegisterExtensionCommand(this DotvvmControl control, Delegate action, string methodUsageId)
{
var bindingService = control.GetValue(Internal.RequestContextProperty).CastTo <IDotvvmRequestContext>()
.Configuration.ServiceProvider.GetRequiredService <BindingCompilationService>();
var id = control.GetDotvvmUniqueId() + methodUsageId;
var propertyName = control.GetType().FullName + "/" + methodUsageId;
var property = DotvvmProperty.ResolveProperty(typeof(PropertyBox), propertyName) ?? DotvvmProperty.Register(propertyName, typeof(object), typeof(PropertyBox), null, false, null, typeof(PropertyBox), throwOnDuplicitRegistration: false);
var binding = new CommandBindingExpression(bindingService, action, id);
control.SetBinding(property, binding);
return(binding);
}
public static CommandBindingExpression RegisterExtensionCommand(this DotvvmControl control, Delegate action, string methodUsageId)
{
var bindingService = control.GetValue(Internal.RequestContextProperty).CastTo <IDotvvmRequestContext>()
.Configuration.ServiceLocator.GetService <BindingCompilationService>();
var id = control.GetDotvvmUniqueId() + methodUsageId;
var propertyName = control.GetType().FullName + "/" + methodUsageId;
var property = DotvvmProperty.Register <object, PropertyBox>(propertyName);
var binding = new CommandBindingExpression(bindingService, action, id);
control.SetBinding(property, binding);
return(binding);
}
public object ExecuteBinding(string expression, object[] contexts, DotvvmControl control)
{
var context = new DataContextStack(contexts.FirstOrDefault()?.GetType() ?? typeof(object));
context.RootControlType = control?.GetType() ?? typeof(DotvvmControl);
for (int i = 1; i < contexts.Length; i++)
{
context = new DataContextStack(contexts[i].GetType(), context);
}
var parser = new CompileTimeBindingParser();
var expressionTree = parser.Parse(expression, context, BindingParserOptions.Create <ValueBindingExpression>());
return(new BindingCompilationAttribute().CompileToDelegate(expressionTree, context, typeof(object)).Compile()(contexts, control));
}
public object ExecuteBinding(string expression, object[] contexts, DotvvmControl control, NamespaceImport[] imports = null, Type expectedType = null)
{
var context = DataContextStack.Create(contexts.FirstOrDefault()?.GetType() ?? typeof(object), extensionParameters: new[] {
new CurrentMarkupControlExtensionParameter(new ResolvedTypeDescriptor(control?.GetType() ?? typeof(DotvvmControl)))
});
for (int i = 1; i < contexts.Length; i++)
{
context = DataContextStack.Create(contexts[i].GetType(), context);
}
Array.Reverse(contexts);
var binding = new ResourceBindingExpression(bindingService, new object[] {
context,
new OriginalStringBindingProperty(expression),
new BindingParserOptions(typeof(ResourceBindingExpression), importNamespaces: imports?.ToImmutableList()),
new ExpectedTypeBindingProperty(expectedType ?? typeof(object))
});
return(binding.BindingDelegate.Invoke(contexts, control));
}
public object ExecuteBinding(string expression, object[] contexts, DotvvmControl control, NamespaceImport[] imports = null, Type expectedType = null)
{
var context = new DataContextStack(contexts.FirstOrDefault()?.GetType() ?? typeof(object), rootControlType: control?.GetType() ?? typeof(DotvvmControl));
for (int i = 1; i < contexts.Length; i++)
{
context = new DataContextStack(contexts[i].GetType(), context);
}
var parser = new BindingExpressionBuilder();
var expressionTree = parser.Parse(expression, context, BindingParserOptions.Create <ValueBindingExpression>(importNs: new[] { new NamespaceImport("DotVVM.Framework.Tests.Binding") }.Concat(imports ?? Enumerable.Empty <NamespaceImport>()).ToArray()));
Array.Reverse(contexts);
return(new BindingCompilationAttribute().CompileToDelegate(expressionTree, context, expectedType ?? typeof(object)).Compile()(contexts, control));
}