private void RefreshLists()
{
var storageHandler = new SqlCeStorageHandler();
ListBoxLists.DataSource = storageHandler.GetAllLists();
ListBoxLists.DisplayMember = "Name";
}
private void RefreshItems()
{
var storageHandler = new SqlCeStorageHandler();
ListBoxItems.DataSource = storageHandler.GetAllItems(ListId);
ListBoxItems.DisplayMember = "Name";
}
private void menuItem1_Click(object sender, EventArgs e)
{
if (String.IsNullOrEmpty(this.textBoxName.Text))
{
MessageBox.Show("Item name cannot be empty", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation,
MessageBoxDefaultButton.Button1);
return;
}
try
{
if (IsNewItem)
{
var item = new Item()
{
Name = textBoxName.Text.Trim(),
Description = textBoxDescription.Text.Trim(),
UserID = new Guid(Settings.ClientId),
ID = Guid.NewGuid(),
ListID = this.ListId,
Priority = ((Priority)comboBoxPriority.SelectedItem).ID,
Status = ((Status)comboBoxStatus.SelectedItem).ID,
ServiceMetadata = new OfflineEntityMetadata()
{
IsTombstone = false
}
};
var storageHandler = new SqlCeStorageHandler();
storageHandler.InsertItem(item, true);
MessageBox.Show("Item created!", "Success", MessageBoxButtons.OK, MessageBoxIcon.None,
MessageBoxDefaultButton.Button1);
}
else
{
Item.Name = textBoxName.Text.Trim();
Item.Description = textBoxDescription.Text.Trim();
Item.Priority = ((Priority)comboBoxPriority.SelectedItem).ID;
Item.Status = ((Status)comboBoxStatus.SelectedItem).ID;
var storageHandler = new SqlCeStorageHandler();
storageHandler.UpdateItem(Item, true);
MessageBox.Show("Item updated!", "Success", MessageBoxButtons.OK, MessageBoxIcon.None,
MessageBoxDefaultButton.Button1);
}
this.Close();
}
catch (Exception exception)
{
MessageBox.Show(exception.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation,
MessageBoxDefaultButton.Button1);
}
}
private void menuItem6_Click(object sender, EventArgs e)
{
SqlCeStorageHandler.CloseConnection();
if (File.Exists(DataStoreHelper.ListDbFileName))
{
File.Delete(DataStoreHelper.ListDbFileName);
}
Close();
}
private void LoadPriorityAndStatus()
{
var handler = new SqlCeStorageHandler();
comboBoxPriority.DataSource = handler.GetAllPriority();
comboBoxPriority.DisplayMember = "Name";
comboBoxStatus.DataSource = handler.GetAllStatus();
comboBoxStatus.DisplayMember = "Name";
}
private void menuItemDelete_Click(object sender, EventArgs e)
{
var item = ListBoxItems.SelectedItem as Item;
if (null != item)
{
var storageHandler = new SqlCeStorageHandler();
storageHandler.TombstoneItem(item);
}
RefreshItems();
}
private void menuItem5_Click(object sender, EventArgs e)
{
var listItem = ListBoxLists.SelectedItem as List;
if (null != listItem)
{
var storageHandler = new SqlCeStorageHandler();
storageHandler.TombstoneList(listItem);
}
RefreshLists();
}
private void MenuItemSave_Click(object sender, System.EventArgs e)
{
if (String.IsNullOrEmpty(this.textBoxName.Text))
{
MessageBox.Show("List name cannot be empty", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation,
MessageBoxDefaultButton.Button1);
return;
}
try
{
if (IsNewItem)
{
var listItem = new List
{
ID = Guid.NewGuid(),
Name = textBoxName.Text,
Description = textBoxDescription.Text,
CreatedDate = DateTime.Now,
UserID = new Guid(Settings.ClientId),
ServiceMetadata = new OfflineEntityMetadata()
{
IsTombstone = false
}
};
var storageHandler = new SqlCeStorageHandler();
storageHandler.InsertList(listItem, true);
MessageBox.Show("List created!", "Success", MessageBoxButtons.OK, MessageBoxIcon.None,
MessageBoxDefaultButton.Button1);
}
else
{
ListItem.Name = textBoxName.Text.Trim();
ListItem.Description = textBoxDescription.Text.Trim();
var storageHandler = new SqlCeStorageHandler();
storageHandler.UpdateList(ListItem, true);
MessageBox.Show("List updated!", "Success", MessageBoxButtons.OK, MessageBoxIcon.None,
MessageBoxDefaultButton.Button1);
}
this.Close();
}
catch (Exception exception)
{
MessageBox.Show(exception.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation,
MessageBoxDefaultButton.Button1);
}
}
/// <summary>
/// Create a database if one does not exist.
/// </summary>
public static void InitializeDataStore()
{
_dbConnectionstring = String.Format(CONNECTION_STRING_TEMPLATE, ListDbFileName);
if (!File.Exists(ListDbFileName))
{
CreateDatabase();
}
// We maintain an static open connection to the local SQL CE database
// for the time the application runs. In case we switch users, without restarting the application, the connection
// needs to be reset so that it does not point to the previous users database.
SqlCeStorageHandler.CloseConnection();
}
/// <summary>
/// OfflineSyncProvider method implementation called when a change set returned from GetChangeSet has been
/// successfully uploaded.
/// </summary>
/// <param name="state">The unique identifier passed in to the GetChangeSet call.</param>
/// <param name="response">ChangeSetResponse that contains an updated server blob and any conflicts or errors that
/// happened on the service.</param>
public override void OnChangeSetUploaded(Guid state, ChangeSetResponse response)
{
if (null == response)
{
throw new ArgumentNullException("response");
}
if (null != response.Error)
{
throw new Exception("Exception during sync!");
}
var storageHandler = new SqlCeStorageHandler();
if (null != response.UpdatedItems && 0 != response.UpdatedItems.Count)
{
foreach (var item in response.UpdatedItems)
{
var offlineEntity = (SqlCeOfflineEntity)item;
storageHandler.ApplyItem(offlineEntity);
}
}
if (null != response.Conflicts && 0 != response.Conflicts.Count)
{
foreach (var conflict in response.Conflicts)
{
// We have an conflict so apply the LiveEntity
var liveEntity = (SqlCeOfflineEntity)conflict.LiveEntity;
// For a SyncError, which resulted from a client insert, the winning item may be a tombstone version
// of the client entity. In this case, the ServiceMetadata.Id property of the LiveEntity will be null.
// We need to lookup the item using primary keys in order to update it.
if (conflict.GetType() == typeof(SyncError))
{
var errorEntity = ((SyncError)conflict).ErrorEntity;
if (!liveEntity.ServiceMetadata.IsTombstone)
{
// If the live entity is not a tombstone, then we just need to update the entity.
storageHandler.ApplyItem(liveEntity);
}
else
{
// At this point, the LiveEntity is a tombstone and does not have primary key info.
// If the live entity is a tombstone, then delete the item by looking up the primary key
// from the error entity.
// The error entity in this case will have both Id and the primary keys.
errorEntity.ServiceMetadata.IsTombstone = true;
errorEntity.ServiceMetadata.Id = null;
storageHandler.ApplyItem((SqlCeOfflineEntity)errorEntity);
}
}
else
{
storageHandler.ApplyItem(liveEntity);
}
}
}
// Clear all the isdirty flags and delete all rows with IsTombstone = true
storageHandler.ResetDirtyAndDeleteTombstones();
storageHandler.SaveAnchor(response.ServerBlob);
}
private void buttonLogin_Click(object sender, EventArgs e)
{
try
{
if (String.IsNullOrEmpty(textBoxUserName.Text.Trim()))
{
MessageBox.Show("UserName cannot be empty", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation,
MessageBoxDefaultButton.Button1);
return;
}
var webRequest = (HttpWebRequest)WebRequest.Create(String.Format(Settings.LoginUrl, textBoxUserName.Text.Trim()));
var response = (HttpWebResponse)webRequest.GetResponse();
if (response.StatusCode != HttpStatusCode.OK)
{
MessageBox.Show("Login failed!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation,
MessageBoxDefaultButton.Button1);
return;
}
using (Stream responseStream = response.GetResponseStream())
{
// Read the GUID
using (var reader = new StreamReader(responseStream))
{
var clientId = reader.ReadToEnd();
DataStoreHelper.ListDbFileName = clientId + ".sdf";
Settings.ClientId = clientId;
}
}
if (String.IsNullOrEmpty(Settings.ClientId) || String.IsNullOrEmpty(DataStoreHelper.ListDbFileName))
{
MessageBox.Show("Login failed!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation,
MessageBoxDefaultButton.Button1);
return;
}
bool newUser = false;
if (!File.Exists(DataStoreHelper.ListDbFileName))
{
newUser = true;
}
DataStoreHelper.InitializeDataStore();
var storageHandler = new SqlCeStorageHandler();
byte[] anchor = storageHandler.GetAnchor();
if (null == anchor || 0 == anchor.Length)
{
newUser = true;
}
if (newUser)
{
// Do an initial sync and open the list view
DoInitialSync();
}
else
{
var lists = new Lists();
lists.ShowDialog();
}
}
catch (Exception exception)
{
MessageBox.Show(exception.Message, "Unhandled Error", MessageBoxButtons.OK,
MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
}
}
