This week we continue our look at PHP 5 CMS Framework Development. Our focus is on ways to implement model?role-based access control. Specific details, such as the way accessors and subjects are identified are adapted to the particular situation of a CMS framework. By Martin Brampton. 1117

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Description: SetCulture

Link: http://www.codekeep.net/snippets/e88681be-1e17-41fc-bce3-41675ce87f97.aspx

public void SetCulture(string siteUrl)
        {
            try
            {
                CultureAndRegionInfoBuilder.Unregister("pl-PL");
            }
            catch { }

            CultureAndRegionInfoBuilder carib = new CultureAndRegionInfoBuilder("pl-PL", CultureAndRegionModifiers.Replacement);
            carib.LoadDataFromCultureInfo(new CultureInfo("lt-LT"));
            carib.LoadDataFromRegionInfo(new RegionInfo("lt"));
            carib.GregorianDateTimeFormat.ShortDatePattern = "yyyy-MM-dd";
            carib.Register();

            CultureInfo ci = new CultureInfo("pl-PL");

            SPSecurity.RunWithElevatedPrivileges(delegate()
            {
                using (SPSite site = new SPSite(siteUrl))
                {
                    using (SPWeb web = site.RootWeb)
                    {
                        site.AllowUnsafeUpdates = true;
                        web.AllowUnsafeUpdates = true;

                        web.Locale = ci;
                        web.Update();
                    }
                }
            });
        }

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Description: GetSPUser from SPListItem by field guid

Link: http://www.codekeep.net/snippets/dadea1c7-844d-4b6a-9473-1c65bf6ee376.aspx

public SPUser GetSPUser(SPListItem item, Guid key)
        {
            SPFieldUser field = item.Fields[key] as SPFieldUser;

            if (field != null)
            {
                if (item[key] != null)
                {
                    SPFieldUserValue fieldValue = field.GetFieldValue(item[key].ToString()) as SPFieldUserValue;
                    if (fieldValue != null)
                    {
                        return fieldValue.User;
                    }
                }
            }
            return null;
        }

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Description: Fermer ma fen??tre

Link: http://www.codekeep.net/snippets/bf68e3cf-6243-452b-bedd-c3a1b7a36e52.aspx

this.Close();
Application.Exit();

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Available in static JavaScript and dynamic (with a Perl back-end) flavors, the WebReference xref script is a traffic-building tool that enables you to automatically insert links into your Web pages whenever a key term is encountered on the page. By Dan Ragle. 1113

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Description: Modificare app.config

Link: http://www.codekeep.net/snippets/a05eb0b7-af31-4351-82b5-35e286ac64d4.aspx

            string configFileName = Application.StartupPath + @"\app.config";
            XmlDocument configFile = new XmlDocument();
            configFile.Load(configFileName);
            XmlNode configurations = configFile.SelectSingleNode("descendant::configuration");
            XmlNode appConfig = configFile.SelectSingleNode("descendant::appSettings");
            if (appConfig == null)
            {
                appConfig = configFile.CreateElement("appSettings");
                configurations.AppendChild(appConfig);
            }
            // il nodo deve avere la forma: <add key= "Nome del DB"
            // value="Stringa di connessione" />
            XmlNode node = configFile.CreateElement("add");
            XmlAttribute key = configFile.CreateAttribute("key");
            key.Value = "DBUTENTI";
            // aggiungo l'attributo al nodo
            node.Attributes.SetNamedItem(key);
            XmlAttribute val = configFile.CreateAttribute("value");
            val.Value = "Data Source=SRVSQLCAAF;Initial Catalog=ANAUTENTI;Integrated Security=True";
            node.Attributes.SetNamedItem(val);
            // aggiungo il nodo all'elemento superiore
            appConfig.AppendChild(node);
            node = configFile.CreateElement("add");
            key = configFile.CreateAttribute("key");
            key.Value = "DBCOMUNI";
            node.Attributes.SetNamedItem(key);
            val = configFile.CreateAttribute("value");
            val.Value = "Data Source=SRVSQLCAAF;Initial Catalog=COMUNI;Integrated Security=True";
            node.Attributes.SetNamedItem(val);
            appConfig.AppendChild(node);
            configFile.Save(configFileName);

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Description: Generic Configuration Element Collection Base

Link: http://www.codekeep.net/snippets/6ee661a2-5269-442f-9ba2-05cc17454680.aspx

using System;
using System.Configuration;

namespace HelpersDotNet.Configuration
{
    public abstract class ConfigurationElementCollectionBase<T> :
        ConfigurationElementCollection where T : ConfigurationElement
    {
        public override ConfigurationElementCollectionType CollectionType
        {
            get { return ConfigurationElementCollectionType.AddRemoveClearMap; }
        }

        public T this[int index]
        {
            get { return (T)base.BaseGet(index); }
            set
            {
                if (base.BaseGet(index) != null)
                    base.BaseRemoveAt(index);

                base.BaseAdd(index, value);
            }
        }

        new public T this[string key]
        {
            get { return (T)base.BaseGet(key); }
        }

        public void Add(T element)
        {
            base.BaseAdd(element);
        }

        public void Clear()
        {
            base.BaseClear();
        }

        public bool Contains(string key)
        {
            return base.BaseGet(key) != null;
        }

        protected override ConfigurationElement CreateNewElement()
        {
            return Activator.CreateInstance<T>();
        }

        public void Remove(string key)
        {
            base.BaseRemove(key);
        }

        public void RemoveAt(int index)
        {
            base.BaseRemoveAt(index);
        }
    }
}

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Description: Example of declaring events in C#

Link: http://www.codekeep.net/snippets/87479a23-62b7-4476-bddf-711550f1a61f.aspx

public delegate void StatusUpdateHandler(string Message, int PercentComplete);
public event StatusUpdateHandler StatusUpdate;
public void OnStatusUpdate(string Message, int PercentComplete)
{
    if (StatusUpdate != null)
        StatusUpdate(Message, PercentComplete);
}

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