public Workspace OpenWorkspace(String path)
{
var upgrader = new WorkspaceUpgrader(path);
int version;
try
{
using (var connection = upgrader.OpenConnection())
{
try
{
version = upgrader.ReadSchemaVersion(connection);
}
catch (Exception e)
{
Console.Out.WriteLine(e);
MessageBox.Show(
"Unable to read version number from the workspace. This workspace may be too old to be upgraded.");
return(null);
}
}
}
catch (Exception openException)
{
Console.Out.WriteLine(openException);
MessageBox.Show("Unable to open the database:" + openException.Message);
return(null);
}
if (version > WorkspaceUpgrader.CurrentVersion || version < WorkspaceUpgrader.MinUpgradeableVersion)
{
MessageBox.Show("This workspace cannot be opened by this version of Topograph", Program.AppName);
return(null);
}
if (version < WorkspaceUpgrader.CurrentVersion)
{
var result =
MessageBox.Show(
"This workspace needs to be upgraded to this version of Topograph. Do you want to do that now?",
Program.AppName, MessageBoxButtons.OKCancel);
if (result == DialogResult.Cancel)
{
return(null);
}
using (var longWaitDialog = new LongWaitDialog(TopLevelControl, "Upgrading Workspace"))
{
if (!new LongOperationBroker(upgrader.Run, longWaitDialog).LaunchJob())
{
return(null);
}
}
}
return(new Workspace(path));
}
private void BtnOkOnClick(object sender, EventArgs e)
{
if (!CheckRequiredField(tbxServer) ||
!CheckRequiredField(comboDatabaseName) ||
!CheckRequiredField(tbxUsername) ||
!CheckRequiredField(tbxPassword))
{
return;
}
Settings.Default.Reload();
var tpgLinkDef = GetTpgLinkDef();
var workspaceUpgrader = new WorkspaceUpgrader(tpgLinkDef);
try
{
using (var connection = workspaceUpgrader.OpenConnection())
{
try
{
workspaceUpgrader.ReadSchemaVersion(connection);
}
catch
{
MessageBox.Show(this,
string.Format("The database {0} is not a Topograph workspace",
tpgLinkDef.Database));
return;
}
}
}
catch (Exception exception)
{
MessageBox.Show(this,
string.Format("There was an error trying to connect to the database: {0}",
exception), Program.AppName);
return;
}
using (var fileDialog = new SaveFileDialog
{
Filter = TopographForm.OnlineWorkspaceFilter,
InitialDirectory = Settings.Default.WorkspaceDirectory,
FileName = comboDatabaseName.Text + ".tpglnk",
})
{
while (true)
{
if (fileDialog.ShowDialog(this) == DialogResult.Cancel)
{
return;
}
try
{
tpgLinkDef.Save(fileDialog.FileName);
}
catch (Exception exception)
{
MessageBox.Show(this, string.Format("Error saving .tpglnk file: {0}", exception),
Program.AppName);
continue;
}
Filename = fileDialog.FileName;
Settings.Default.WorkspaceDirectory = Path.GetDirectoryName(Filename);
break;
}
}
Settings.Default.ConnectionSettings = new ConnectionSettings
{
Server = tbxServer.Text,
Port = tbxPort.Text,
Username = tbxUsername.Text,
};
Settings.Default.Save();
DialogResult = DialogResult.OK;
Close();
}