configuration.cs

采用vc#.net和sqlce实现智能手机端和服务器数据交换

                    this.configStatus = ConfigStatus.ConfigStart;
                    UpdateForm();

                    break;

                    /// Back
                    ///
                case ConfigStatus.ConfigSync:
                    this.configStatus = ConfigStatus.ConfigDriver;
                    UpdateForm();

                    break;

                    /// Quick Sync
                    ///
                case ConfigStatus.ConfigDone:

                    Cursor.ShowWaitCursor(true);
                    try
                    {
                        try
                        {
                            /// Execute the Quick Sync (for example, upload only).
                            ///
                            this.dataIBuySpy.QuickSync();
                        }
                        finally
                        {
                            Cursor.ShowWaitCursor(false);
                        }
                    }
                    catch(SqlCeException err)
                    {
                        IBuySpyData.ShowErrors(err);
                        return;
                    }
                    catch (Exception err)
                    {
                        MessageBox.Show("Quick Sync: " + err.Message, "IBuySpy Delivery");
                        return;
                    }

                    this.cboDriverID.Enabled = false;

                    break;
            }   
        }

		/// This method controls the behavior of the Next button, which can also be the Finish button or
		/// the Full Sync button. The Next button is active during configuration. The Finish button is 
		/// active at the final step in the configuration process. The Full Sync button is activated after
		/// synchronization has occurred.
		///
        private void btnNextOrFull_Click(object sender, System.EventArgs e)
        {
            switch(this.configStatus)
            {
                    /// Next
                    ///
                case ConfigStatus.ConfigStart:

                    if (0 == this.txtServerName.Text.Length)
                    {
                        MessageBox.Show("Enter server name first!", "IBuySpy Delivery");
                        return;
                    }

                    Cursor.ShowWaitCursor(true);

                    try
                    {
                        try
                        {
                            /// Loads the DriverID records.
                            ///
                            LoadDriverIDs();    
                        }
                        finally
                        {
                            Cursor.ShowWaitCursor(false);
                        }
                    }
                    catch(SqlCeException err)
                    {
                        IBuySpyData.ShowErrors(err);
                        return;
                    }
                    catch (Exception err)
                    {
                        MessageBox.Show("Load Driver IDs: " + err.Message, "IBuySpy Delivery");
                        return;
                    }

                    this.configStatus = ConfigStatus.ConfigDriver;
                    UpdateForm();

                    break;

                    /// Next
                    ///
                case ConfigStatus.ConfigDriver:

                    if (0 == this.cboDriverID.Text.Length)
                    {
                        MessageBox.Show("Select a driver ID!", "IBuySpy Delivery");
                        return;
                    }

                    this.configStatus = ConfigStatus.ConfigSync;
                    this.cboSyncMethod.SelectedIndex = 0;
                    UpdateForm();

                    break;

                    /// Finish
                    ///
                case ConfigStatus.ConfigSync:

                    if (0 == this.cboSyncMethod.Text.Length)
                    {
                        MessageBox.Show("Select a synchronize method!", "IBuySpy Delivery");
                        return;
                    }

                    this.dataIBuySpy.ServerName = this.txtServerName.Text;
                    this.dataIBuySpy.DriverID   = Convert.ToInt32(this.cboDriverID.Text);

					/// Determines which synchronization method to use (RDA or replication).
					///
                    this.dataIBuySpy.SyncMethod = this.cboSyncMethod.Text.ToUpper() == "RDA" ? SyncType.Rda : SyncType.Replication;

                    Cursor.ShowWaitCursor(true);

                    try
                    {
                        try
                        {
							/// Performs a Full Synchronization (bidirectional). The "true" parameter specifies that
							/// this is the initial synchronization (for example, there is no local database or the local
							/// database will be deleted if it exists).
							///
                            this.dataIBuySpy.FullSync(SyncStatus.InitSync);
                        }
                        finally
                        {
                            Cursor.ShowWaitCursor(false);
                        }
                    }
                    catch(SqlCeException err)
                    {
                        IBuySpyData.ShowErrors(err);
                        return;
                    }
                    catch (Exception err)
                    {
                        MessageBox.Show("Full Sync: " + err.Message, "IBuySpy Delivery");
                        return;
                    }

                    this.configStatus = ConfigStatus.ConfigDone;
                    UpdateForm();

                    break;

                    /// Full Sync
                    ///
                case ConfigStatus.ConfigDone:

                    try
                    {
                        Cursor.ShowWaitCursor(true);
                        try
                        {
                            /// If the DriverID value is changed, a full synchronization automatically occurs in
                            /// the same manner as an initial synchronization (for example, the database is deleted).
                            ///
                            if (this.cboDriverID.Text != this.dataIBuySpy.DriverID.ToString())
                            {
                                this.dataIBuySpy.DriverID = Convert.ToInt32(this.cboDriverID.Text);
                                this.dataIBuySpy.FullSync(SyncStatus.ReinitSync);
                                
                                this.btnBackOrQuick.Enabled = true;
                                this.frmIBuySpy.UpdateForm(false);
                            }
       						/// The user caused a full synchronization to occur (without changing the DriverID).
    						///
                            else
                            {
                                this.dataIBuySpy.FullSync(SyncStatus.RegularSync);
                            }
                        }
                        finally
                        {
                            Cursor.ShowWaitCursor(false);
                        }
                    }
                    catch(SqlCeException err)
                    {
                        IBuySpyData.ShowErrors(err);
                        return;
                    }
                    catch (Exception err)
                    {
                        MessageBox.Show("Full Sync: " + err.Message, "IBuySpy Delivery");
                        return;
                    }

                    this.cboDriverID.Enabled = false;

                    break;
            }        
        }

		/// This method updates the user interface on the Configuration control based on the current status
		/// (that is, which configuration step the user is currently performing).
		///
        private void UpdateForm()
        {
            switch(configStatus)
            {
                case ConfigStatus.ConfigStart:

                    this.txtServerName.Enabled = true;

                    this.lblDriverID.Hide();
                    this.cboDriverID.Hide();

                    this.lblSyncMethod.Hide();
                    this.cboSyncMethod.Hide();

                    this.btnReset.Hide();
                    this.btnChangeDriver.Hide();
                    this.btnBackOrQuick.Hide();
                    this.btnNextOrFull.Enabled = true;
                    this.btnNextOrFull.Text = "Next";
                    this.btnNextOrFull.Show();

                    this.frmIBuySpy.UpdateForm(true);

                    break;

                case ConfigStatus.ConfigDriver:

                    this.txtServerName.Enabled = false;

                    this.lblDriverID.Show();
                    this.cboDriverID.Show();
                    this.cboDriverID.Enabled = true;

                    this.lblSyncMethod.Hide();
                    this.cboSyncMethod.Hide();

                    this.btnNextOrFull.Text = "Next";

                    this.btnBackOrQuick.Enabled = true;
                    this.btnBackOrQuick.Text = "Back";
                    this.btnBackOrQuick.Show();

                    break;

                case ConfigStatus.ConfigSync:

                    this.cboDriverID.Enabled = false;

                    this.lblSyncMethod.Show();
                    this.cboSyncMethod.Show();
                    this.cboSyncMethod.Enabled = true;

                    this.btnNextOrFull.Text = "Finish";

                    break;

                case ConfigStatus.ConfigDone:

                    this.txtServerName.Enabled = false;

                    this.lblDriverID.Show();
                    this.cboDriverID.Show();
                    this.cboDriverID.Enabled = false;

                    this.lblSyncMethod.Show();
                    this.cboSyncMethod.Show();
                    this.cboSyncMethod.Enabled = false;

                    this.btnReset.Show();
                    this.btnChangeDriver.Show();
                    this.btnBackOrQuick.Text = "Quick Sync";
                    this.btnBackOrQuick.Show();
                    this.btnNextOrFull.Text = "Full Sync";
                    this.btnNextOrFull.Show();

                    if (0 == this.dataIBuySpy.ServerName.Length)
                    {
                        this.btnChangeDriver.Enabled = false;
                        this.btnBackOrQuick.Enabled = false;
                        this.btnNextOrFull.Enabled = false;
                    }
                    else
                    {
                        this.btnChangeDriver.Enabled = true;
                    }

                    this.frmIBuySpy.UpdateForm(false);

                    break;
            }
        }

		/// This method loads the DriverID records (through RDA) and binds the datatable to 
        /// the cobDriverID combo box.
		///
        private void LoadDriverIDs()
        {
            DataTable dtDriverIDs = null;

            this.dataIBuySpy.ServerName = this.txtServerName.Text;

            dtDriverIDs = dataIBuySpy.LoadDriverIDs();
            if (null == dtDriverIDs)
            {
                throw (new Exception(@"Unable to load driver info."));
            }

            if (0 == dtDriverIDs.Rows.Count || 0 == dtDriverIDs.Columns.Count)
            {
                throw (new Exception(@"No driver data."));
            }

            this.cboDriverID.DataSource    = dtDriverIDs;
            this.cboDriverID.DisplayMember = "DriverID";
            this.cboDriverID.ValueMember   = "DriverID";	
        }

		/// If the DriverID value is changed, a full synchronization is required; therefore, the Quick Sync
		/// option is disabled.
		///
        private void cboDriverID_SelectedIndexChanged(object sender, System.EventArgs e)
        {
            if (this.cboDriverID.Text != this.dataIBuySpy.DriverID.ToString() && 
                ConfigStatus.ConfigDone == this.configStatus)
            {
                this.btnBackOrQuick.Enabled = false;
            }
            else
            {
                this.btnBackOrQuick.Enabled = true;
            }
        }
    }
}