/// <summary>
/// Indexer for getting and setting values for the key specified.
/// </summary>
/// <param name="key">The key to check for in the property bag</param>
/// <returns>The value for the key, null if not found</returns>
public string this[string key]
{
[SharePointPermission(SecurityAction.InheritanceDemand, ObjectModel = true)]
[SharePointPermission(SecurityAction.LinkDemand, ObjectModel = true)]
get
{
using (var site = CreateSite())
{
var list = new ConfigurationList(site);
return(list.Get(buildKeyFunc(key), this.contextId));
}
}
[SharePointPermission(SecurityAction.InheritanceDemand, ObjectModel = true)]
[SharePointPermission(SecurityAction.LinkDemand, ObjectModel = true)]
set
{
if (value == null)
{
Remove(key);
}
else
{
using (var site = CreateSite())
{
// AllowUnsafeUpdates required since the list may be located outside of
// the current web/site.
site.RootWeb.AllowUnsafeUpdates = true;
var list = new ConfigurationList(site);
list.Save(buildKeyFunc(key), value, this.contextId);
site.RootWeb.AllowUnsafeUpdates = false;
}
}
}
}
/// <summary>
/// Constructs a list backed property bag with a function for transforming the key.
/// </summary>
/// <param name="configListSite">The site to use for retrieving the configuration list</param>
/// <param name="contextId">The context Id for this property bag, for example, web.ID</param>
/// <param name="level">The level for this property bag</param>
/// <param name="buildKeyFunc">The function to use to transform the key to use to actually store</param>
public ListBackedPropertyBag(SPSite configListSite, string contextId, ConfigLevel level, Func <string, string> buildKeyFunc)
{
this.level = level;
this.contextId = contextId;
this.configList = new ConfigurationList(configListSite);
this.buildKeyFunc = buildKeyFunc;
}
/// <summary>
/// Constructs a list backed property bag.
/// </summary>
/// <param name="configListSite">The site to use for retrieving the configuration list</param>
/// <param name="contextId">The context Id for this property bag, for example, web.ID</param>
/// <param name="level">The level for this property bag</param>
public ListBackedPropertyBag(SPSite configListSite, string contextId, ConfigLevel level)
{
this.level = level;
this.contextId = contextId;
this.configList = new ConfigurationList(configListSite);
buildKeyFunc = (key) => key; //by default just return key.
}
public bool Contains(string key)
{
using (var site = CreateSite())
{
var list = new ConfigurationList(site);
return(list.ContainsKey(buildKeyFunc(key), this.contextId));
}
}
public void Remove(string key)
{
using (var site = CreateSite())
{
site.RootWeb.AllowUnsafeUpdates = true;
var list = new ConfigurationList(site);
string fullKey = buildKeyFunc(key);
if (list.ContainsKey(fullKey, this.contextId))
{
list.Remove(fullKey, this.contextId);
}
site.RootWeb.AllowUnsafeUpdates = false;
}
}