C:/Data/Projects/MCS EPM Global Practice/Frameworks/Public/mpfX/1.0/Libraries/Mcs.Epm.MicrosoftProject.mpFx.WinForms/ItemSelectionDialog.cs

/*  ----------------------------------------------------------------------------
 *  Microsoft Corporation
 *  ----------------------------------------------------------------------------
 *  Microsoft Project Server mpFx (mpFx)
 *  ----------------------------------------------------------------------------
 *  Author: Colby Africa
 *  ----------------------------------------------------------------------------
 *  License: http://code.msdn.microsoft.com/mpFx/Project/License.aspx
 *  ----------------------------------------------------------------------------
 */

using System;
using System.Collections.Generic;
using System.Windows.Forms;

namespace Mcs.Epm.MicrosoftProject.mpFx.WinForms
{
    /// <summary>
    /// Implements a simple user interface for selecting items
    /// </summary>
    public partial class ItemSelectionDialog : Form
    {
        #region Private Constants

        private const int ITEM_CHECKED_COLUMN_INDEX = 0;
        private const int ITEM_GUID_COLUMN_INDEX = 2;
        private const int ITEM_VALUE_COLUMN_INDEX = 1;

        #endregion

        #region Instance Data

        private readonly Dictionary<Guid, string> _Items;
        private readonly bool _AllowMultiSelect;
        private Guid _SelectedItem;

        #endregion

        #region Public Properties

        public Dictionary<Guid, string> SelectedItems
        {
            get
            {
                Dictionary<Guid, string> selectedItems = new Dictionary<Guid, string>();

                foreach (DataGridViewRow row in dataGridView.Rows)
                {
                    if (Convert.ToBoolean(row.Cells[ITEM_CHECKED_COLUMN_INDEX].Value))
                    {
                        selectedItems.Add(new Guid(row.Cells[ITEM_GUID_COLUMN_INDEX].Value.ToString()), row.Cells[ITEM_VALUE_COLUMN_INDEX].Value.ToString());
                    }
                }

                return selectedItems;
            }
        }

        public Guid SelectedItem
        {
            get
            {
                if (_SelectedItem == Guid.Empty)
                {
                    foreach (DataGridViewRow row in dataGridView.Rows)
                    {
                        if (Convert.ToBoolean(row.Cells[ITEM_CHECKED_COLUMN_INDEX].Value))
                        {
                            _SelectedItem = new Guid(row.Cells[ITEM_GUID_COLUMN_INDEX].Value.ToString());
                            break;
                        }
                    }
                }
                return _SelectedItem;
            }
        }

        #endregion

        #region Constructors

        public ItemSelectionDialog(Dictionary<Guid, string> items, bool allowMultiSelect)
        {
            InitializeComponent();

            _Items = items;
            _AllowMultiSelect = allowMultiSelect;

            foreach (KeyValuePair<Guid, string> item in _Items)
            {
                dataGridView.Rows.Add(new object[] {null, item.Value, item.Key});
            }
        }

        #endregion

        #region Event Handlers

        private void dataGridView_CellEndEdit(object sender, DataGridViewCellEventArgs e)
        {
            if (!_AllowMultiSelect)
            {
                foreach (DataGridViewRow row in dataGridView.Rows)
                {
                    if (row.Index != e.RowIndex)
                    {
                        row.Cells[ITEM_CHECKED_COLUMN_INDEX].Value = false;
                    }
                }
            }
        }

        #endregion

    }
}

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