/// <summary>
/// Activates the specified control.
/// </summary>
/// <param name="active">The <see cref="Control"/> to activate.</param>
/// <returns>true if the control is successfully activated; otherwise, false.</returns>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/bb339151(v=vs.110).aspx
/// </remarks>
public bool ActivateControl(Control active)
{
if (Controls.Contains(active))
{
active.Select();
ActiveControl = active;
return true;
}
return false;
}
/// <summary>
/// Sets the index of the specified child control in the collection to the specified index value.
/// </summary>
/// <param name="child">The child <see cref="Control"/> to search for.</param>
/// <param name="newIndex">The new index value of the control.</param>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/system.windows.forms.control.controlcollection.setchildindex(v=vs.110).aspx
/// </remarks>
public virtual void SetChildIndex(Control child, int newIndex)
{
lock (_internalSyncRoot)
{
if (_controls.Contains(child))
{
if (newIndex >= Count)
{
_controls.Remove(child);
_controls.Add(child);
}
else
{
_controls.Remove(child);
_controls.Insert(newIndex, child);
}
}
else
{
throw new ArgumentException();
}
}
}
/// <summary>
/// Removes the specified control from the control collection.
/// </summary>
/// <param name="value">The <see cref="Control"/> to remove from the <see cref="ControlCollection"/>.</param>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/system.windows.forms.control.controlcollection.remove(v=vs.110).aspx
/// </remarks>
public virtual void Remove(Control value)
{
lock (_internalSyncRoot)
{
_controls.Remove(value);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ControlCollection"/> class.
/// </summary>
/// <param name="owner">A <see cref="Control"/> representing the control that owns the control collection.</param>
public ControlCollection(Control owner)
{
_owner = owner;
_controls = new List<Control>();
}
/// <summary>
/// Retrieves the index of the specified control in the control collection.
/// </summary>
/// <param name="control">The <see cref="Control"/> to locate in the collection.</param>
/// <returns>A zero-based index value that represents the position of the specified <see cref="Control"/> in the <see cref="ControlCollection"/>.</returns>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/system.windows.forms.control.controlcollection.indexof(v=vs.110).aspx
/// </remarks>
public int IndexOf(Control control)
{
lock (_internalSyncRoot)
{
return _controls.IndexOf(control);
}
}
/// <summary>
/// Retrieves the index of the specified child control within the control collection, and optionally raises an exception if the specified control is not within the control collection.
/// </summary>
/// <param name="child">The <see cref="Control"/> to search for in the control collection.</param>
/// <param name="throwException">true to throw an exception if the <see cref="Control"/> specified in the child parameter is not a control in the <see cref="ControlCollection"/>; otherwise, false.</param>
/// <returns></returns>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/ta8fcz9s(v=vs.110).aspx
/// </remarks>
public virtual int GetChildIndex(Control child, bool throwException)
{
lock (_internalSyncRoot)
{
if (_controls.Contains(child))
{
return _controls.IndexOf(child);
}
if (throwException)
{
throw new ArgumentException();
}
return -1;
}
}
/// <summary>
/// Retrieves the index of the specified child control within the control collection.
/// </summary>
/// <param name="child">The <see cref="Control"/> to search for in the control collection.</param>
/// <returns>A zero-based index value that represents the location of the specified child control within the control collection.</returns>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/1fz293fh(v=vs.110).aspx
/// </remarks>
public int GetChildIndex(Control child)
{
lock (_internalSyncRoot)
{
if (_controls.Contains(child))
{
return _controls.IndexOf(child);
}
throw new KeyNotFoundException();
}
}
/// <summary>
/// Activates the next control.
/// </summary>
/// <param name="ctl">The <see cref="Control"/> at which to start the search.</param>
/// <param name="forward">true to move forward in the tab order; false to move backward in the tab order.</param>
/// <param name="tabStopOnly">true to ignore the controls with the TabStop property set to false; otherwise, false.</param>
/// <param name="nested">true to include nested (children of child controls) child controls; otherwise, false.</param>
/// <param name="wrap">true to continue searching from the first control in the tab order after the last control has been reached; otherwise, false.</param>
/// <returns>true if a control was activated; otherwise, false.</returns>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/system.windows.forms.control.selectnextcontrol(v=vs.110).aspx
/// </remarks>
public bool SelectNextControl(Control ctl, bool forward, bool tabStopOnly, bool nested, bool wrap)
{
throw new NotImplementedException();
}
/// <summary>
/// Adds an array of control objects to the collection.
/// </summary>
/// <param name="controls">An array of <see cref="Control"/> objects to add to the collection.</param>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/system.windows.forms.control.controlcollection.addrange(v=vs.110).aspx
/// </remarks>
public virtual void AddRange(Control[] controls)
{
lock (_internalSyncRoot)
{
foreach (Control control in controls)
{
InternalAdd(control);
}
}
}
private void InternalAdd(Control value)
{
if (_owner == value)
{
throw new ArgumentException($"The control {nameof(value)} cannot be the same as the {nameof(Owner)}.");
}
value.TabIndex = _controls.Count;
_controls.Add(value);
value.Parent = _owner;
}
/// <summary>
/// Adds the specified control to the control collection.
/// </summary>
/// <param name="value">The <see cref="Control"/> to add to the control collection.</param>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/system.windows.forms.control.controlcollection.add(v=vs.110).aspx
/// </remarks>
public virtual void Add(Control value)
{
lock (_internalSyncRoot)
{
InternalAdd(value);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ControlEventArgs"/> class for the specified control.
/// </summary>
/// <param name="control">The <see cref="Control"/> to store in this event.</param>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/system.windows.forms.controleventargs.controleventargs(v=vs.110).aspx
/// </remarks>
public ControlEventArgs(Control control)
{
Control = control;
}
/// <summary>
/// Initializes a new instance of the Control class as a child control, with specific text.
/// </summary>
/// <param name="parent">The <see cref="Control"/> to be the parent of the control.</param>
/// <param name="text">The text displayed by the control.</param>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/wawy06xc(v=vs.110).aspx
/// </remarks>
public Control(Control parent, string text)
: this(text)
{
Parent = parent;
}
/// <summary>
/// Retrieves the next control forward or back in the tab order of child controls.
/// </summary>
/// <param name="ctl">The <see cref="Control"/> to start the search with.</param>
/// <param name="forward">true to search forward in the tab order; true to search backward.</param>
/// <returns>The next <see cref="Control"/> in the tab order.</returns>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/system.windows.forms.control.getnextcontrol(v=vs.110).aspx
/// </remarks>
public Control GetNextControl(Control ctl, bool forward) { throw new NotImplementedException(); }
private ControlCollection(Control owner, List<Control> controls)
: this(owner)
{
_controls = controls;
}
/// <summary>
/// Determines whether the specified control is a member of the collection.
/// </summary>
/// <param name="control">The <see cref="Control"/> to locate in the collection.</param>
/// <returns>true if the <see cref="Control"/> is a member of the collection; otherwise, false.</returns>
public bool Contains(Control control)
{
lock (_internalSyncRoot)
{
return _controls.Contains(control);
}
}
/// <summary>
/// Initializes a new instance of the Control class as a child control, with specific text, size, and location.
/// </summary>
/// <param name="parent">The <see cref="Control"/> to be the parent of the control.</param>
/// <param name="text">The text displayed by the control.</param>
/// <param name="left">The X position of the control, in pixels, from the left edge of the control's container. The value is assigned to the <see cref="Left"/> property.</param>
/// <param name="top">The Y position of the control, in pixels, from the top edge of the control's container. The value is assigned to the <see cref="Top"/> property.</param>
/// <param name="width">The width of the control, in pixels. The value is assigned to the <see cref="Width"/> property.</param>
/// <param name="height">The height of the control, in pixels. The value is assigned to the <see cref="Height"/> property.</param>
/// <remarks>
/// http://msdn.microsoft.com/en-us/library/x59hwbb3(v=vs.110).aspx
/// </remarks>
public Control(Control parent, string text, int left, int top, int width, int height)
: this(text, left, top, width, height)
{
Parent = parent;
}
