public KnockoutTagBuilder <TModel> DropDownList <TItem>(Expression <Func <TModel, IList <TItem> > > options, object htmlAttributes, Expression <Func <TModel, TItem, object> > optionsText)
{
var tagBuilder = new KnockoutTagBuilder <TModel>(Context, "select", InstanceNames, Aliases);
tagBuilder.ApplyAttributes(htmlAttributes);
if (options != null)
{
tagBuilder.Options(Expression.Lambda <Func <TModel, IEnumerable> >(options.Body, options.Parameters));
}
if (optionsText != null)
{
var data = CreateData();
var keys = data.Aliases.Keys.ToList();
if (!string.IsNullOrEmpty(Context.GetInstanceName()))
{
foreach (var key in keys)
{
data.Aliases[Context.GetInstanceName() + "." + key] = data.Aliases[key];
data.Aliases.Remove(key);
}
}
data.InstanceNames = new[] { Context.GetInstanceName(), "item" };
tagBuilder.OptionsText("function(item) { return " + KnockoutExpressionConverter.Convert(optionsText, data) + "; }");
}
return(tagBuilder);
}
private static string ExpressionToString(Type modelType, Expression expression)
{
var data = KnockoutExpressionData.CreateConstructorData();
data.Aliases[modelType.FullName] = "this";
return(KnockoutExpressionConverter.Convert(expression, data));
}
public KnockoutIfContext <TModel> If(Expression <Func <TModel, bool> > binding)
{
var regionContext = new KnockoutIfContext <TModel>(ViewContext, KnockoutExpressionConverter.Convert(binding));
regionContext.InStack = false;
regionContext.WriteStart(ViewContext.Writer);
return(regionContext);
}
private static string GetGetExpression(Type modelType, object model, MethodInfo method)
{
var expression = method.Invoke(model, null) as Expression;
var data = KnockoutExpressionData.CreateConstructorData();
data.Aliases[modelType.FullName] = "this";
return(KnockoutExpressionConverter.Convert(expression, data));
}
public KnockoutForeachContext <TItem> Foreach <TItem>(Expression <Func <TModel, IList <TItem> > > binding)
{
var expression = KnockoutExpressionConverter.Convert(binding, CreateData());
var regionContext = new KnockoutForeachContext <TItem>(ViewContext, expression);
regionContext.WriteStart(ViewContext.Writer);
regionContext.ContextStack = ContextStack;
ContextStack.Add(regionContext);
return(regionContext);
}
public KnockoutWithContext <TItem> With <TItem>(Expression <Func <TModel, TItem> > binding)
{
Func <TModel, TItem> func = binding.Compile();
var model = (TItem)func((TModel)ViewContext.ViewData.Model);
var expression = KnockoutExpressionConverter.Convert(binding, CreateData());
var regionContext = new KnockoutWithContext <TItem>(ViewContext, expression, model);
regionContext.WriteStart(ViewContext.Writer);
regionContext.ContextStack = ContextStack;
ContextStack.Add(regionContext);
return(regionContext);
}
private static IEnumerable <IPropertyConfig> GetMetaDataFor <TProperty, TItem>(Expression <Func <TProperty, TItem> > binding)
{
var ViewModelConfiguratorFactory = DependencyResolver.Current.GetService <IViewModelConfiguratorFactory>();
var metadata = ViewModelConfiguratorFactory.GetViewModelConfigurator(typeof(TProperty));
if (metadata != null)
{
var name = KnockoutExpressionConverter.Convert(binding, null);
return(metadata.CreateDescriptor().GetConfigsForMember(name).ToList());
}
return(null);
}
public KnockoutTagBuilder <TModel> DropDownList <TItem>(Expression <Func <TModel, IList <TItem> > > options, object htmlAttributes = null, Expression <Func <TItem, object> > optionsText = null)
{
var tagBuilder = new KnockoutTagBuilder <TModel>(Context, "select", InstanceNames, Aliases);
tagBuilder.ApplyAttributes(htmlAttributes);
if (options != null)
{
tagBuilder.Options(Expression.Lambda <Func <TModel, IEnumerable> >(options.Body, options.Parameters));
}
if (optionsText != null)
{
var data = new KnockoutExpressionData {
InstanceNames = new[] { "item" }
};
tagBuilder.OptionsText("function(item) { return " + KnockoutExpressionConverter.Convert(optionsText, data) + "; }");
}
return(tagBuilder);
}
public static string Convert(Expression expression, KnockoutExpressionData convertData = null)
{
var converter = new KnockoutExpressionConverter();
return(converter.LocalConvert(expression, convertData));
}
public static string Convert(Expression expression, KnockoutExpressionData convertData = null)
{
var converter = new KnockoutExpressionConverter();
return converter.LocalConvert(expression, convertData);
}
public KnockoutScriptItem SetObservable(Expression <Func <TModel, object> > prop, string value)
{
string name = KnockoutExpressionConverter.Convert(prop);
return(new KnockoutScriptItem(this.Context.ViewModelName + "." + name + "(" + value + ")"));
}
