private void Build_Click(object sender, RoutedEventArgs e)
{
IntPtr henv = IntPtr.Zero;
IntPtr hdbc = IntPtr.Zero;
short result = 0;
try
{
result = NativeMethods.SQLAllocEnv(out henv);
if (!NativeMethods.SQL_SUCCEEDED(result))
{
throw new ApplicationException(Properties.Resources.OdbcConnectionUIControl_SQLAllocEnvFailed);
}
result = NativeMethods.SQLAllocConnect(henv, out hdbc);
if (!NativeMethods.SQL_SUCCEEDED(result))
{
throw new ApplicationException(Properties.Resources.OdbcConnectionUIControl_SQLAllocConnectFailed);
}
string currentConnectionString = _connectionProperties.ToFullString();
System.Text.StringBuilder newConnectionString = new System.Text.StringBuilder(1024);
result = NativeMethods.SQLDriverConnect(hdbc, new WindowInteropHelper(Window.GetWindow(this)).Handle, currentConnectionString, (short)currentConnectionString.Length, newConnectionString, 1024, out short newConnectionStringLength, NativeMethods.SQL_DRIVER_PROMPT);
if (!NativeMethods.SQL_SUCCEEDED(result) && result != NativeMethods.SQL_NO_DATA)
{
// Try again without the current connection string, in case it was invalid
result = NativeMethods.SQLDriverConnect(hdbc, new WindowInteropHelper(Window.GetWindow(this)).Handle, null, 0, newConnectionString, 1024, out newConnectionStringLength, NativeMethods.SQL_DRIVER_PROMPT);
}
if (!NativeMethods.SQL_SUCCEEDED(result) && result != NativeMethods.SQL_NO_DATA)
{
throw new ApplicationException(Properties.Resources.OdbcConnectionUIControl_SQLDriverConnectFailed);
}
else
{
NativeMethods.SQLDisconnect(hdbc);
}
if (newConnectionStringLength > 0)
{
Refresh_Click(sender, e);
_connectionProperties.Parse(newConnectionString.ToString());
VisualTreeHelpers.RefreshBindings(this);
passwordTextbox.Password = Password;
}
}
finally
{
if (hdbc != IntPtr.Zero)
{
NativeMethods.SQLFreeConnect(hdbc);
}
if (henv != IntPtr.Zero)
{
NativeMethods.SQLFreeEnv(henv);
}
}
}
private void AdvancedButton_Click(object sender, RoutedEventArgs e)
{
DataConnectionAdvancedDialog dataAdvancedDialog = new DataConnectionAdvancedDialog(ConnectionProperties);
if (dataAdvancedDialog.ShowOkCancel())
{
VisualTreeHelpers.RefreshBindings(this);
}
}
private void ProviderCombobox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
locationLabel.IsEnabled = false;
locationTextBox.IsEnabled = false;
sqlAuthentication.IsChecked = true;
integraredSecRadioButton.IsEnabled = false;
sqlAuthentication.IsEnabled = false;
usernameTextbox.IsEnabled = false;
usernameLabel.IsEnabled = false;
passwordLabel.IsEnabled = false;
passwordTextbox.IsEnabled = false;
savepasswordCheckbox.IsEnabled = false;
initialCatalogGroup.IsEnabled = false;
sqlAuthentication.IsChecked = true;
PropertyDescriptorCollection propertyDescriptors = TypeDescriptor.GetProperties(_connectionProperties);
PropertyDescriptor propertyDescriptor = null;
if ((propertyDescriptor = propertyDescriptors["Location"]) != null &&
propertyDescriptor.IsBrowsable)
{
locationLabel.IsEnabled = true;
locationTextBox.IsEnabled = true;
}
if ((propertyDescriptor = propertyDescriptors["Integrated Security"]) != null &&
propertyDescriptor.IsBrowsable)
{
integraredSecRadioButton.IsEnabled = true;
}
if ((propertyDescriptor = propertyDescriptors["User ID"]) != null &&
propertyDescriptor.IsBrowsable)
{
usernameTextbox.IsEnabled = true;
usernameLabel.IsEnabled = true;
sqlAuthentication.IsEnabled = true;
}
if (_connectionProperties["Password"] != null)
{
passwordLabel.IsEnabled = true;
passwordTextbox.IsEnabled = true;
sqlAuthentication.IsEnabled = true;
}
if (_connectionProperties["Password"] != null &&
(propertyDescriptor = propertyDescriptors["PersistSecurityInfo"]) != null &&
propertyDescriptor.IsBrowsable)
{
savepasswordCheckbox.IsEnabled = true;
}
if ((propertyDescriptor = propertyDescriptors["Initial Catalog"]) != null &&
propertyDescriptor.IsBrowsable)
{
initialCatalogGroup.IsEnabled = true;
}
VisualTreeHelpers.RefreshBindings(this);
}
private void ConStrTextBox_LostFocus(object sender, RoutedEventArgs e)
{
try
{
_connectionProperties.Parse(conStrTextBox.Text.Trim());
VisualTreeHelpers.RefreshBindings(this);
passwordTextbox.Password = Password;
}
catch (ArgumentException ex)
{
MessageBox.Show(ex.Message, Properties.Resources.Error_Label, MessageBoxButton.OK, MessageBoxImage.Error);
UpdateConnectionString();
}
}
private void DataLink_Click(object sender, RoutedEventArgs e)
{
try
{
// Create data links object as IDataInitialize
Type dataLinksType = Type.GetTypeFromCLSID(NativeMethods.CLSID_DataLinks);
NativeMethods.IDataInitialize dataInitialize = Activator.CreateInstance(dataLinksType) as NativeMethods.IDataInitialize;
// Create data source object from connection string
object dataSource = null;
dataInitialize.GetDataSource(null,
NativeMethods.CLSCTX_INPROC_SERVER,
_connectionProperties.ToFullString(),
ref NativeMethods.IID_IUnknown,
ref dataSource);
// Get IDBPromptInitialize interface from data links object
NativeMethods.IDBPromptInitialize promptInitialize = (NativeMethods.IDBPromptInitialize)dataInitialize;
// Display the data links dialog using this data source
promptInitialize.PromptDataSource(
null,
new WindowInteropHelper(Window.GetWindow(this)).Handle,
NativeMethods.DBPROMPTOPTIONS_PROPERTYSHEET | NativeMethods.DBPROMPTOPTIONS_DISABLE_PROVIDER_SELECTION,
0,
IntPtr.Zero,
null,
ref NativeMethods.IID_IUnknown,
ref dataSource);
// Retrieve the new connection string from the data source
dataInitialize.GetInitializationString(dataSource, true, out string newConnectionString);
// Parse the new connection string into the connection properties object
_connectionProperties.Parse(newConnectionString);
// Reload the control with the modified connection properties
VisualTreeHelpers.RefreshBindings(this);
passwordTextbox.Password = Password;
}
catch (Exception ex)
{
COMException comex = ex as COMException;
if (comex == null || comex.ErrorCode != NativeMethods.DB_E_CANCELED)
{
MessageBox.Show(ex.Message, Properties.Resources.Error_Label, MessageBoxButton.OK, MessageBoxImage.Error);
}
}
}
