internal static string Else(BlockHelperNode h, TemplateContext c)
{
if (!h.EvaluateExpression(c))
{
return h.ResolveChildren(c);
}
else
{
return string.Empty;
}
}
public static string With(BlockHelperNode h, TemplateContext c)
{
// the "with" helper changes context to an item
// referenced by the helper node expression
var withContext = c.ResolveContext(h.Expression);
if (withContext.HasData)
{
return h.ResolveChildren(withContext);
}
else
{
return string.Empty;
}
}
public static string Each(BlockHelperNode h, TemplateContext c)
{
// the "each" helper changes context to an enumerable item
// referenced by the helper node expression
var withContext = c.ResolveContext(h.Expression);
var result = "";
if (withContext.IsEnumerable)
{
// each sub context is an item in the enumerable object
// that was resolved in the parent context from the current node expression
foreach (var subContext in withContext.AsEnumerable)
{
result += h.ResolveChildren(subContext);
}
return result;
}
else
{
return string.Empty;
}
}