public EventHandlerList DetachEvents(Component obj)
{
object objNew = obj.GetType().GetConstructor(new Type[] { }).Invoke(new object[] { });
PropertyInfo propEvents = obj.GetType().GetProperty("Events", BindingFlags.NonPublic | BindingFlags.Instance);
EventHandlerList eventHandlerList_obj = (EventHandlerList)propEvents.GetValue(obj, null);
EventHandlerList eventHandlerList_objNew = (EventHandlerList)propEvents.GetValue(objNew, null);
eventHandlerList_objNew.AddHandlers(eventHandlerList_obj);
eventHandlerList_obj.Dispose();
return(eventHandlerList_objNew);
}
public void AddHandlers_Gettable()
{
var list1 = new EventHandlerList();
var list2 = new EventHandlerList();
int total = 0;
Action a1 = () => total += 1;
Action a2 = () => total += 2;
// Add the delegates to separate keys in the first list
list1.AddHandler("key1", a1);
list1.AddHandler("key2", a2);
// Then add the first list to the second
list2.AddHandlers(list1);
// And make sure they contain the same entries
Assert.Same(list1["key1"], list2["key1"]);
Assert.Same(list1["key2"], list2["key2"]);
}
public static ToolStripMenuItem CloneToolStripMenuItem(ToolStripMenuItem itemToClone)
{
ToolStripMenuItem clonedItem = new ToolStripMenuItem();
PropertyInfo itemToClonePropertyInfo = itemToClone.GetType().GetProperty("Events",
BindingFlags.NonPublic | BindingFlags.Instance);
EventHandlerList itemToCloneEventHandlerList = (EventHandlerList)itemToClonePropertyInfo.GetValue(itemToClone, null);
PropertyInfo clonedItemPropertyInfo = clonedItem.GetType().GetProperty("Events",
BindingFlags.NonPublic | BindingFlags.Instance);
EventHandlerList clonedItemEventHandlerList = (EventHandlerList)clonedItemPropertyInfo.GetValue(clonedItem, null);
clonedItemEventHandlerList.AddHandlers(itemToCloneEventHandlerList);
clonedItem.AccessibleName = itemToClone.AccessibleName;
clonedItem.AccessibleRole = itemToClone.AccessibleRole;
clonedItem.Alignment = itemToClone.Alignment;
clonedItem.AllowDrop = itemToClone.AllowDrop;
clonedItem.Anchor = itemToClone.Anchor;
clonedItem.AutoSize = itemToClone.AutoSize;
clonedItem.AutoToolTip = itemToClone.AutoToolTip;
clonedItem.BackColor = itemToClone.BackColor;
clonedItem.BackgroundImage = itemToClone.BackgroundImage;
clonedItem.BackgroundImageLayout = itemToClone.BackgroundImageLayout;
clonedItem.Checked = itemToClone.Checked;
clonedItem.CheckOnClick = itemToClone.CheckOnClick;
clonedItem.CheckState = itemToClone.CheckState;
clonedItem.DisplayStyle = itemToClone.DisplayStyle;
clonedItem.Dock = itemToClone.Dock;
clonedItem.DoubleClickEnabled = itemToClone.DoubleClickEnabled;
clonedItem.Enabled = itemToClone.Enabled;
clonedItem.Font = itemToClone.Font;
clonedItem.ForeColor = itemToClone.ForeColor;
clonedItem.Image = itemToClone.Image;
clonedItem.ImageAlign = itemToClone.ImageAlign;
clonedItem.ImageScaling = itemToClone.ImageScaling;
clonedItem.ImageTransparentColor = itemToClone.ImageTransparentColor;
clonedItem.Margin = itemToClone.Margin;
clonedItem.MergeAction = itemToClone.MergeAction;
clonedItem.MergeIndex = itemToClone.MergeIndex;
clonedItem.Name = itemToClone.Name;
clonedItem.Overflow = itemToClone.Overflow;
clonedItem.Padding = itemToClone.Padding;
clonedItem.RightToLeft = itemToClone.RightToLeft;
clonedItem.ShortcutKeys = itemToClone.ShortcutKeys;
clonedItem.ShowShortcutKeys = itemToClone.ShowShortcutKeys;
clonedItem.Tag = itemToClone.Tag;
clonedItem.Text = itemToClone.Text;
clonedItem.TextAlign = itemToClone.TextAlign;
clonedItem.TextDirection = itemToClone.TextDirection;
clonedItem.TextImageRelation = itemToClone.TextImageRelation;
clonedItem.ToolTipText = itemToClone.ToolTipText;
clonedItem.Available = itemToClone.Available;
foreach (ToolStripMenuItem dropDownItem in itemToClone.DropDownItems)
{
clonedItem.DropDownItems.Add(CloneToolStripMenuItem(dropDownItem));
}
if (!itemToClone.AutoSize)
{
clonedItem.Size = itemToClone.Size;
}
return(clonedItem);
}
public void AddHandlers_NullList_ThrowsNullReferenceException()
{
var list = new EventHandlerList();
Assert.Throws <NullReferenceException>(() => list.AddHandlers(null));
}
public void AddHandlers_Gettable()
{
var list1 = new EventHandlerList();
var list2 = new EventHandlerList();
int total = 0;
Action a1 = () => total += 1;
Action a2 = () => total += 2;
// Add the delegates to separate keys in the first list
list1.AddHandler("key1", a1);
list1.AddHandler("key2", a2);
// Then add the first list to the second
list2.AddHandlers(list1);
// And make sure they contain the same entries
Assert.Same(list1["key1"], list2["key1"]);
Assert.Same(list1["key2"], list2["key2"]);
}
public void AddHandlers_NullList_ThrowsArgumentNullException()
{
var list = new EventHandlerList();
AssertExtensions.Throws <ArgumentNullException, NullReferenceException>(() => list.AddHandlers(null));
}
