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namespace System.Web.Mvc {
using System.Collections.Generic;
public class TemplateInfo {
private string _htmlFieldPrefix;
private object _formattedModelValue;
private HashSet<object> _visitedObjects;
public object FormattedModelValue {
get {
return _formattedModelValue ?? String.Empty;
}
set {
_formattedModelValue = value;
}
}
public string HtmlFieldPrefix {
get {
return _htmlFieldPrefix ?? String.Empty;
}
set {
_htmlFieldPrefix = value;
}
}
public int TemplateDepth {
get {
return VisitedObjects.Count;
}
}
// DDB #224750 - Keep a collection of visited objects to prevent infinite recursion
internal HashSet<object> VisitedObjects {
get {
if (_visitedObjects == null) {
_visitedObjects = new HashSet<object>();
}
return _visitedObjects;
}
set {
_visitedObjects = value;
}
}
public string GetFullHtmlFieldId(string partialFieldName) {
return HtmlHelper.GenerateIdFromName(GetFullHtmlFieldName(partialFieldName));
}
public string GetFullHtmlFieldName(string partialFieldName) {
// This uses "combine and trim" because either or both of these values might be empty
return (HtmlFieldPrefix + "." + (partialFieldName ?? String.Empty)).Trim('.');
}
public bool Visited(ModelMetadata metadata) {
return VisitedObjects.Contains(metadata.Model ?? metadata.ModelType);
}
}
}
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