public void AddFieldMapping(string fieldName, FieldMappingFunc func)
{
PropertyInfo propertyInfo;
if (propertyMappingCache.TryGetValue(fieldName, out propertyInfo))
{
AddFieldMapping(propertyInfo, func);
}
}
private void AddFieldMapping(PropertyInfo propertyInfo, FieldMappingFunc func)
{
List <FieldMappingFunc> list;
if (fieldMappingCache.TryGetValue(propertyInfo, out list) == false)
{
list = new List <FieldMappingFunc>();
fieldMappingCache[propertyInfo] = list;
}
list.Add(func);
}
private void AddFieldMapping(PropertyInfo propertyInfo, string jqSelector, int?index, string attrName)
{
List <FieldMappingFunc> list;
if (fieldMappingCache.TryGetValue(propertyInfo, out list) == false)
{
list = new List <FieldMappingFunc>();
fieldMappingCache[propertyInfo] = list;
}
FieldMappingFunc func = (nd, obj, pi) => {
HtmlNode node = null;
if (index != null)
{
var nds = nd.QuerySelectorAll(jqSelector);
if (nds.Count > index.Value)
{
node = nds[index.Value];
}
}
else if (string.IsNullOrEmpty(jqSelector))
{
node = nd;
}
else
{
node = nd.QuerySelector(jqSelector);
}
if (node != null)
{
try {
if (string.IsNullOrEmpty(attrName) == false)
{
var attr = node.Attributes[attrName];
if (attr != null)
{
pi.SetValue(obj, To(attr.Value, pi.PropertyType));
return(true);
}
}
else
{
pi.SetValue(obj, To(node.ToText().Trim(), pi.PropertyType));
return(true);
}
} catch (Exception) { }
}
return(false);
};
list.Add(func);
}
public void AddFieldMapping <TReturn>(Expression <Func <T, TReturn> > fieldExpression, FieldMappingFunc func)
{
var vistor = new FieldExpVistor();
vistor.Visit(fieldExpression);
var fieldName = vistor.Field;
AddFieldMapping(fieldName, func);
}
