public static SqlConnectionFormProxy GetInstance()
{
if (_singleton == null)
{
_singleton = new SqlConnectionFormProxy();
}
return(_singleton);
}
public SqlConnectionForm(
Dictionary <String, SqlConnection> sqlConnections,
string id)
{
InitializeComponent();
_sqlConnectionManager = SqlConnectionManager.GetInstance();
_sqlConnections = sqlConnections;
_connectionId = id;
foreach (SqlDataProvider provider in
_sqlConnectionManager.SqlDataProviders.Values)
{
_providerComboBox.Items.Add(provider);
}
if (_providerComboBox.Items.Count > 0)
{
_providerComboBox.SelectedIndex = 0;
}
if (_connectionId != null)
{
if (!_sqlConnections.ContainsKey(id))
{
throw new Exception("Invalid connection ID");
}
SqlConnection connection = _sqlConnections[id];
_nameTextBox.Text = connection.Name;
_connectionStringTextBox.Text =
connection.ConnectionStringForEditing;
SelectedProviderByInvariantName(
connection.Provider.InvariantName);
}
// Allow client applications to modify the form.
SqlConnectionFormProxy.GetInstance().
UpdateFormControls(Controls);
}