C:/Projekte/RAIS/UI Common/Controls.cs

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using System;
using System.Collections.Generic;
using System.Text;

using System.Web.UI;
using System.Web.UI.WebControls;

namespace RAIS.UI.Common
{
    class Controls
    {
        #region Public static methods

        public static void InitializeList(ListItemCollection items, string[] itemNames)
        {
                        // Items are not in the same order as they was selected from DB 
                        // after AddMissingItems and RemoveUnmatchedItems using (because
                        // AddMissingItems adds items to the end of the list)
                        // that's why clear the list and fill it in again
                        //AddMissingItems(items, itemNames);
                        //RemoveUnmatchedItems(items, itemNames);
                        items.Clear();
                        if (itemNames != null)
                        {
                                foreach (string itemName in itemNames)
                                {
                                        ListItem item = new ListItem(itemName);
                                        items.Add(item);
                                }
                        }

            UI.Common.PageManagement.InitializeItemsTooltips(items);
        }

        public static void InitializeList(ListItemCollection items, string[] itemNames, string[] itemValues)
        {
            // Items are not in the same order as they was selected from DB 
            // after AddMissingItems and RemoveUnmatchedItems using (because
            // AddMissingItems adds items to the end of the list)
            // that's why clear the list and fill it in again
            //AddMissingItems(items, itemNames);
            //RemoveUnmatchedItems(items, itemNames);
            items.Clear();
            if (itemNames != null)
            {
                for (int i = 0; i < itemNames.Length; i++)
                {
                    ListItem item = new ListItem(itemNames[i], itemValues[i]);
                    items.Add(item);
                }
            }

            UI.Common.PageManagement.InitializeItemsTooltips(items);
        }
        #endregion
        #region Private helper methods

        private static void AddMissingItems(ListItemCollection items, string[] itemNames)
        {
            if (itemNames != null)
            {
                foreach (string itemName in itemNames)
                {
                    if (items.FindByText(itemName) == null)
                    {
                        ListItem item = new ListItem(itemName);          

                        items.Add(item);
                    }
                }
            }
        }
        private static void RemoveUnmatchedItems(ListItemCollection items, string[] itemNames)
        {
            if (itemNames != null)
            {
                ListItemCollection itemsToRemove = new ListItemCollection();
                foreach (ListItem item in items)
                {
                    bool found = false;
                    foreach (string itemName in itemNames)
                    {
                        if (itemName == item.Text)
                        {
                            found = true;
                            break;
                        }
                    }
                    if (!found)
                        itemsToRemove.Add(item);
                }
                foreach (ListItem item in itemsToRemove)
                    items.Remove(item);
            }
            else
                items.Clear();
        }
        #endregion
    }
}