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ProjectView.cs
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ProjectView.cs
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using Knightrunner.WorkTrack.Model;
namespace Knightrunner.WorkTrack.UI
{
public partial class ProjectView : BaseView
{
private bool enableChangeTracking;
private Dictionary<Guid, Project> changedItems = new Dictionary<Guid, Project>();
private Dictionary<Guid, Project> deletedItems = new Dictionary<Guid, Project>();
public ProjectView()
{
InitializeComponent();
}
public void LoadData()
{
try
{
enableChangeTracking = false;
WorkTrackServiceReference.WorkTrackServiceClient client = new WorkTrackServiceReference.WorkTrackServiceClient("BasicHttpBinding_IWorkTrackService");
var projects = new List<Project>(client.GetProjects());
bindingSource.DataSource = projects;
changedItems.Clear();
deletedItems.Clear();
enableChangeTracking = true;
UpdateActions();
}
catch (Exception ex)
{
MessageBox.Show(ex.GetType().FullName + " " + ex.Message);
}
}
private void bindingSource_AddingNew(object sender, AddingNewEventArgs e)
{
//Log("AddingNew");
}
private void Log(string p)
{
Debug.WriteLine(DateTime.Now.ToString("s") + " " + p);
}
private void bindingSource_CurrentChanged(object sender, EventArgs e)
{
Log("CurrentChanged");
}
private void bindingSource_CurrentItemChanged(object sender, EventArgs e)
{
//Log("CurrentItemChanged");
}
private void bindingSource_DataError(object sender, BindingManagerDataErrorEventArgs e)
{
Log("DataError");
}
private void bindingSource_DataMemberChanged(object sender, EventArgs e)
{
//Log("DataMemberChanged");
}
private void bindingSource_BindingComplete(object sender, BindingCompleteEventArgs e)
{
//Log("BindingComplete");
}
private void bindingSource_DataSourceChanged(object sender, EventArgs e)
{
//Log("DataSourceChanged");
}
private void bindingSource_ListChanged(object sender, ListChangedEventArgs e)
{
Log("ListChanged " + e.ListChangedType.ToString());
if (enableChangeTracking)
{
if (e.ListChangedType == ListChangedType.ItemChanged)
{
var item = (Project)bindingSource.CurrencyManager.List[e.NewIndex];
if (item.Id != Guid.Empty)
{
changedItems[item.Id] = item;
}
}
else if (e.ListChangedType == ListChangedType.ItemDeleted)
{
var item = (Project)bindingSource.CurrencyManager.List[e.NewIndex];
if (item.Id != Guid.Empty)
{
changedItems.Remove(item.Id);
deletedItems[item.Id] = item;
}
}
UpdateActions();
}
}
private void UpdateActions()
{
bool enableSave = changedItems.Count > 0 || deletedItems.Count > 0;
if (!enableSave)
{
enableSave = AreAddedItems();
}
saveToolStripButton.Enabled = enableSave;
}
private bool AreAddedItems()
{
foreach (Project project in (IEnumerable<Project>)bindingSource.DataSource)
{
if (project.Id == Guid.Empty)
{
return true;
}
}
return false;
}
private void bindingSource_PositionChanged(object sender, EventArgs e)
{
//Log("PositionChanged");
}
}
}