/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose(bool disposing)
{
Debug.WriteLineIf(!disposing, "****************** Missing Dispose() call for " + GetType().Name + " ******************");
// Must not be run more than once.
if (IsDisposed)
return;
// m_sda COM object block removed due to crash in Finializer thread LT-6124
if (disposing)
{
if (m_button != null)
{
m_button.MouseDown -= m_button_MouseDown;
m_button.KeyDown -= m_button_KeyDown;
m_button.GotFocus -= m_button_GotFocus;
m_button.LostFocus -= m_button_LostFocus;
}
if (m_sda != null)
m_sda.RemoveNotification(this);
if (m_comboTextBox != null)
{
m_comboTextBox.KeyDown -= m_comboTextBox_KeyDown;
m_comboTextBox.MouseDown -= m_comboTextBox_MouseDown;
m_comboTextBox.GotFocus -= m_comboTextBox_GotFocus;
m_comboTextBox.LostFocus -= m_comboTextBox_LostFocus;
}
if (m_dropDownBox != null && !m_dropDownBox.IsDisposed)
{
m_dropDownBox.Form.VisibleChanged -= Form_VisibleChanged;
m_dropDownBox.Dispose();
}
}
m_sda = null;
m_button = null;
m_comboTextBox = null;
m_dropDownBox = null;
base.Dispose(disposing);
}
/// <summary>
/// Construct one.
/// </summary>
public FwComboBoxBase()
{
if (Application.RenderWithVisualStyles)
DoubleBuffered = true;
SuspendLayout();
// Set this box's own properties (first, as we use some of them in figuring the
// size of other things).
// Make and install the ComboTextBox
m_comboTextBox = new ComboTextBox(this);
m_comboTextBox.AccessibleName = "TextBox";
m_comboTextBox.Dock = DockStyle.Fill;
m_comboTextBox.Visible = true;
// This causes us to get a notification when the string gets changed, so we can fire our
// TextChanged event.
m_sda = m_comboTextBox.DataAccess;
m_sda.AddNotification(this);
m_comboTextBox.KeyDown += m_comboTextBox_KeyDown;
m_comboTextBox.MouseDown += m_comboTextBox_MouseDown;
m_comboTextBox.GotFocus += m_comboTextBox_GotFocus;
m_comboTextBox.LostFocus += m_comboTextBox_LostFocus;
m_comboTextBox.TabIndex = 1;
m_comboTextBox.TabStop = true;
m_textBoxPanel = new Panel();
m_textBoxPanel.AccessibleName = "TextBoxPanel";
m_textBoxPanel.Dock = DockStyle.Fill;
m_textBoxPanel.BackColor = Color.Transparent;
m_textBoxPanel.Controls.Add(m_comboTextBox);
Controls.Add(m_textBoxPanel);
// Make and install the button that pops up the list.
m_button = new DropDownButton(this);
m_button.AccessibleName = "DropDownButton";
m_button.Dock = DockStyle.Right; // Enhance JohnT: Left if RTL language?
m_button.TabStop = false;
//m_button.FlatStyle = FlatStyle.Flat; // no raised edges etc for this button.
//// m_button.Click += new EventHandler(m_button_Click);
m_button.MouseDown += m_button_MouseDown;
m_button.KeyDown += m_button_KeyDown;
m_button.GotFocus += m_button_GotFocus;
m_button.LostFocus += m_button_LostFocus;
m_buttonPanel = new Panel();
m_buttonPanel.AccessibleName = "DropDownButtonPanel";
m_buttonPanel.Dock = DockStyle.Right;
m_buttonPanel.BackColor = Color.Transparent;
m_buttonPanel.Controls.Add(m_button);
Controls.Add(m_buttonPanel);
HasBorder = true;
Padding = new Padding(Application.RenderWithVisualStyles ? 2 : 1);
base.BackColor = SystemColors.Window;
m_buttonPanel.Width = m_button.PreferredWidth + m_buttonPanel.Padding.Horizontal;
m_dropDownBox = CreateDropDownBox();
m_dropDownBox.Form.VisibleChanged += Form_VisibleChanged;
ResumeLayout();
}