public MethodInfo CandidateMethod()
{
if (_candidate == null)
{
IEnumerable <MethodInfo> candidates = CandidateMethods();
candidates = candidates.OrderBy(m => m.GetParameters().Length);
_candidate = candidates.FirstOrDefault();
if (_candidate == null)
{
throw HtmlHelperTagException.NoSuitableMethodFound(MethodName, AsExpectations(Parameters)).Decorate(
Context);
}
}
return(_candidate);
}
public object[] AssembleParameters(MethodInfo method, HtmlHelper helper, TagModel model)
{
Dictionary <string, object> parameterTable = Parameters.ToDictionary(p => p.Name.ToLowerInvariant(),
p => p.Value(model));
parameterTable.Add(Html.HTMLHELPER_PARAM_NAME.ToLowerInvariant(), helper);
var parameterValues = new List <object>();
string parameterName = null;
try
{
foreach (ParameterInfo parameter in method.GetParameters())
{
parameterName = parameter.Name.ToLowerInvariant();
parameterValues.Add(TypeConverter.To(parameterTable[parameterName], parameter.ParameterType));
}
} catch (KeyNotFoundException)
{
throw HtmlHelperTagException.RequiredArgumentMissing(parameterName, method).Decorate(Context);
}
return(parameterValues.ToArray());
}
