private static void setValue(object dest, ListBinding b, object val)
{
object list = getPropertyValue(dest, b.ListName);
if (list == null)
{
return;
}
Type itemType = dest.GetType().GetProperty(b.ListName).PropertyType.GetProperty("Item").PropertyType;
var newobj = Expression.Lambda(Expression.New(itemType)).Compile().DynamicInvoke();
setPropValue(newobj, b.PropName, val);
if (b.ListFilterOrInits != null && b.ListFilterOrInits.Count > 0)
{
foreach (var listInit in b.ListFilterOrInits)
{
setPropValue(newobj, listInit.PropName, listInit.PropValue);
}
}
var addMethod = dest.GetType().GetProperty(b.ListName).PropertyType.GetMethod("Add", new[] { itemType });
// ReSharper disable once PossiblyMistakenUseOfParamsMethod
var l1 = Expression.Lambda(Expression.Call(Expression.Constant(list), addMethod, Expression.Constant(newobj)));
l1.Compile().DynamicInvoke();
}
private static object getValue(object o, ListBinding b)
{
var list = getPropertyValue(o, b.ListName) as IEnumerable <object>;
if (list == null)
{
return(null);
}
var filteredList = new List <object>();
Type itemType = o.GetType().GetProperty(b.ListName).PropertyType.GetProperty("Item").PropertyType;
foreach (var listItem in list)
{
bool isCanAdd = true;
if (b.ListFilterOrInits != null && b.ListFilterOrInits.Count > 0)
{
foreach (var listFilter in b.ListFilterOrInits)
{
var param = Expression.Parameter(itemType, "x");
Expression expression = getExpression(listFilter.PropName, param);
expression = Expression.Call(expression, itemType.GetMethod("ToString"));
if (listFilter.Condition == "equal")
{
expression = Expression.Equal(expression, Expression.Constant(listFilter.PropValue));
}
var res = (bool)Expression.Lambda(expression, param).Compile().DynamicInvoke(listItem);
if (!res)
{
isCanAdd = false;
break;
}
}
}
if (isCanAdd)
{
filteredList.Add(listItem);
}
}
if (filteredList.Count > b.ItemIndex)
{
return(getPropertyValue(filteredList[b.ItemIndex], b.PropName));
}
return(null);
}