C:/Data/Projects/MCS EPM Global Practice/Frameworks/Public/mpfX/1.0/Libraries/Mcs.Epm.MicrosoftProject.mpFx.WinForms/EditCustomFieldLookupFieldForm.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;
using Mcs.Epm.MicrosoftProject.mpFx.LookupTablesWebService;

namespace Mcs.Epm.MicrosoftProject.mpFx.WinForms
{
    /// <summary>
    /// Simple WinForms dialog for selecting a custom field's underlying lookup table
    /// </summary>
    public partial class EditCustomFieldLookupFieldForm : Form
    {
        #region Instance Data

        private readonly ProjectServer _ProjectServer;
        private readonly CustomFieldDefinition _CustomFieldDefinition;
        private LookupTableMultiLangDataSet _LookupTables;

        #endregion

        #region Public Properties

        /// <summary>
        /// Retrieve the selected lookup table's GUID
        /// </summary>
        public Guid LookupTableGUID
        {
            get
            {
                if (lookupTablesList.SelectedValue != null)
                {
                    return new Guid(lookupTablesList.SelectedValue.ToString());
                }
                return Guid.Empty;
            }
        }

        /// <summary>
        /// Retrieve whether or not a default value is used
        /// </summary>
        public bool UseDefaultValue
        {
            get { return useDefaultValueCheckbox.Checked; }
        }

        /// <summary>
        /// Retrieve the default value's GUID
        /// </summary>
        public Guid DefaultValueGUID
        {
            get
            {
                if (UseDefaultValue && defaultValueTextBox.Tag != null)
                {
                    return new Guid(defaultValueTextBox.Tag.ToString());
                }
                return Guid.Empty;
            }
        }

        /// <summary>
        /// Retrieve whether or not only leaf nodes are selectable
        /// </summary>
        public bool AllowOnlyLeafNode
        {
            get { return leafNodeOnlyCheckbox.Checked; }
        }

        /// <summary>
        /// Retrieve whether or not multipe values may be selected from the lookup table
        /// </summary>
        public bool AllowMultiSelect
        {
            get { return multipleValuesCheckbox.Checked; }
        }

        #endregion

        #region Constructor

        /// <summary>
        /// Create an instace of EditCustomFieldLookupFieldForm
        /// </summary>
        /// <param name="customFieldDefinition">The field definition to edit or null to create a new field</param>
        /// <param name="projectServer">The ProjectServer object</param>
        public EditCustomFieldLookupFieldForm(CustomFieldDefinition customFieldDefinition,
                                              ProjectServer projectServer)
        {
            InitializeComponent();

            _CustomFieldDefinition = customFieldDefinition;

            _ProjectServer = projectServer;
        }

        #endregion

        #region Private Methods

        private void LoadLookupTables()
        {
            _LookupTables = _ProjectServer.LookupTables.MultiLangGetLookupTables(string.Empty, false);

            lookupTablesList.DataSource = _LookupTables.LookupTables;

            lookupTablesList.DisplayMember = "LT_NAME";
            lookupTablesList.ValueMember = "LT_UID";

            if (_CustomFieldDefinition.Guid != Guid.Empty)
            {
                lookupTablesList.Enabled = false;
                multipleValuesCheckbox.Enabled = false;

                LookupTableMultiLangDataSet.LookupTablesRow row = _LookupTables.LookupTables.FindByLT_UID(_CustomFieldDefinition.Guid);

                if (row != null)
                {
                    lookupTablesList.SelectedValue = _CustomFieldDefinition.Guid;
                }
            }
        }

        private void LoadCustomFieldSettings()
        {
            if (_CustomFieldDefinition.Guid == Guid.Empty || _CustomFieldDefinition.DefaultValueGuid == Guid.Empty)
            {
                useDefaultValueCheckbox.Checked = false;
                EnableDefaultValueUI(false);
            }
        }

        private bool ValidateForm()
        {
            if (useDefaultValueCheckbox.Checked && defaultValueTextBox.Text == string.Empty)
            {
                if (MessageBox.Show("Please select a default value.", "Custom Fields", MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation) == DialogResult.Cancel)
                {
                    useDefaultValueCheckbox.Checked = false;
                    return true;
                }
                return false;
            }
            return true;
        }

        private void EnableDefaultValueUI(bool enabled)
        {
            defaultValueLabel.Enabled = enabled;
            defaultValueTextBox.Enabled = enabled;
            selectDefaulValueButton.Enabled = enabled;
        }

        private void Cleanup()
        {
            if (_LookupTables != null)
            {
                _LookupTables.Dispose();
            }
        }

        #endregion

        #region Event Handlers

        private void useDefaultValueCheckbox_CheckedChanged(object sender,
                                                            EventArgs e)
        {
            EnableDefaultValueUI(useDefaultValueCheckbox.Checked);
        }

        private void cancelButton_Click(object sender,
                                        EventArgs e)
        {
            Close();
        }

        private void okButton_Click(object sender,
                                    EventArgs e)
        {
            if (ValidateForm())
            {
                DialogResult = DialogResult.OK;
                Close();
            }
        }

        private void EdiCustomFieldLookupFieldForm_Load(object sender,
                                                        EventArgs e)
        {
            Cursor = Cursors.WaitCursor;

            LoadLookupTables();
            LoadCustomFieldSettings();

            Cursor = Cursors.Default;
        }

        private void EditCustomFieldLookupFieldForm_FormClosing(object sender,
                                                                FormClosingEventArgs e)
        {
            Cleanup();
        }

        private void selectDefaulValueButton_Click(object sender,
                                                   EventArgs e)
        {
            SelectLookupTableValueForm form = new SelectLookupTableValueForm(lookupTablesList.SelectedValue.ToString(),
                                                                             _ProjectServer,
                                                                             false,
                                                                             new List<string>());
            Cursor = Cursors.WaitCursor;
            if (form.ShowDialog(this) == DialogResult.OK)
            {
                string[] key = new string[1];

                if (form.SelectedValues.Count > 0)
                {
                    form.SelectedValues.Keys.CopyTo(key, 0);
                    defaultValueTextBox.Text = form.SelectedValues[key[0]];
                    defaultValueTextBox.Tag = key[0];
                }
            }

            Cursor = Cursors.Default;
        }

        private void lookupTablesList_SelectedIndexChanged(object sender,
                                                           EventArgs e)
        {
            defaultValueTextBox.Text = string.Empty;
            defaultValueTextBox.Tag = null;
        }

        #endregion
    }
}

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