DesignerActionItemCollection 类
定义
表示 DesignerActionItem 对象集合。Represents a collection of DesignerActionItem objects.
public ref class DesignerActionItemCollection : System::Collections::CollectionBase
public class DesignerActionItemCollection : System.Collections.CollectionBase
type DesignerActionItemCollection = class
inherit CollectionBase
Public Class DesignerActionItemCollection
Inherits CollectionBase
- 继承
示例
下面的代码示例演示如何创建 DesignerActionItemCollection 并填充它来形成智能标记列表。The following code example demonstrates how to create a DesignerActionItemCollection and populate it to form a smart tag list. 此代码示例是为类提供的更大示例的一部分 DesignerActionItem 。This code example is part of a larger example provided for the DesignerActionItem class.
public override DesignerActionItemCollection GetSortedActionItems()
{
DesignerActionItemCollection items = new DesignerActionItemCollection();
//Define static section header entries.
items.Add(new DesignerActionHeaderItem("Appearance"));
items.Add(new DesignerActionHeaderItem("Information"));
//Boolean property for locking color selections.
items.Add(new DesignerActionPropertyItem("LockColors",
"Lock Colors", "Appearance",
"Locks the color properties."));
if (!LockColors)
{
items.Add(new DesignerActionPropertyItem("BackColor",
"Back Color", "Appearance",
"Selects the background color."));
items.Add(new DesignerActionPropertyItem("ForeColor",
"Fore Color", "Appearance",
"Selects the foreground color."));
//This next method item is also added to the context menu
// (as a designer verb).
items.Add(new DesignerActionMethodItem(this,
"InvertColors", "Invert Colors",
"Appearance",
"Inverts the fore and background colors.",
true));
}
items.Add(new DesignerActionPropertyItem("Text",
"Text String", "Appearance",
"Sets the display text."));
//Create entries for static Information section.
StringBuilder location = new StringBuilder("Location: ");
location.Append(colLabel.Location);
StringBuilder size = new StringBuilder("Size: ");
size.Append(colLabel.Size);
items.Add(new DesignerActionTextItem(location.ToString(),
"Information"));
items.Add(new DesignerActionTextItem(size.ToString(),
"Information"));
return items;
}
Public Overrides Function GetSortedActionItems() _
As DesignerActionItemCollection
Dim items As New DesignerActionItemCollection()
'Define static section header entries.
items.Add(New DesignerActionHeaderItem("Appearance"))
items.Add(New DesignerActionHeaderItem("Information"))
'Boolean property for locking color selections.
items.Add(New DesignerActionPropertyItem( _
"LockColors", _
"Lock Colors", _
"Appearance", _
"Locks the color properties."))
If Not LockColors Then
items.Add( _
New DesignerActionPropertyItem( _
"BackColor", _
"Back Color", _
"Appearance", _
"Selects the background color."))
items.Add( _
New DesignerActionPropertyItem( _
"ForeColor", _
"Fore Color", _
"Appearance", _
"Selects the foreground color."))
'This next method item is also added to the context menu
' (as a designer verb).
items.Add( _
New DesignerActionMethodItem( _
Me, _
"InvertColors", _
"Invert Colors", _
"Appearance", _
"Inverts the fore and background colors.", _
True))
End If
items.Add( _
New DesignerActionPropertyItem( _
"Text", _
"Text String", _
"Appearance", _
"Sets the display text."))
'Create entries for static Information section.
Dim location As New StringBuilder("Location: ")
location.Append(colLabel.Location)
Dim size As New StringBuilder("Size: ")
size.Append(colLabel.Size)
items.Add( _
New DesignerActionTextItem( _
location.ToString(), _
"Information"))
items.Add( _
New DesignerActionTextItem( _
size.ToString(), _
"Information"))
Return items
End Function
构造函数
DesignerActionItemCollection() |
初始化 DesignerActionItemCollection 类的新实例。Initializes a new instance of the DesignerActionItemCollection class. |
属性
Capacity |
获取或设置 CollectionBase 可包含的元素数。Gets or sets the number of elements that the CollectionBase can contain. (继承自 CollectionBase) |
Count |
获取 CollectionBase 实例中包含的元素数。Gets the number of elements contained in the CollectionBase instance. 不能重写此属性。This property cannot be overridden. (继承自 CollectionBase) |
InnerList |
获取一个 ArrayList,它包含 CollectionBase 实例中元素的列表。Gets an ArrayList containing the list of elements in the CollectionBase instance. (继承自 CollectionBase) |
Item[Int32] |
获取或设置指定索引处的元素。Gets or sets the element at the specified index. |
List |
获取一个 IList,它包含 CollectionBase 实例中元素的列表。Gets an IList containing the list of elements in the CollectionBase instance. (继承自 CollectionBase) |
方法
Add(DesignerActionItem) |
将提供的 DesignerActionItem 添加到当前集合。Adds the supplied DesignerActionItem to the current collection. |
Clear() |
从 CollectionBase 实例移除所有对象。Removes all objects from the CollectionBase instance. 不能重写此方法。This method cannot be overridden. (继承自 CollectionBase) |
Contains(DesignerActionItem) |
确定 DesignerActionItemCollection 是否包含特定元素。Determines whether the DesignerActionItemCollection contains a specific element. |
CopyTo(DesignerActionItem[], Int32) |
将当前集合的元素复制到提供的数组,从指定的数组索引开始。Copies the elements of the current collection into the supplied array, starting at the specified array index. |
Equals(Object) |
确定指定对象是否等于当前对象。Determines whether the specified object is equal to the current object. (继承自 Object) |
GetEnumerator() |
返回循环访问 CollectionBase 实例的枚举器。Returns an enumerator that iterates through the CollectionBase instance. (继承自 CollectionBase) |
GetHashCode() |
作为默认哈希函数。Serves as the default hash function. (继承自 Object) |
GetType() |
获取当前实例的 Type。Gets the Type of the current instance. (继承自 Object) |
IndexOf(DesignerActionItem) |
确定集合中特定项的索引。Determines the index of a specific item in the collection. |
Insert(Int32, DesignerActionItem) |
将元素插入 DesignerActionItemCollection 的指定索引处。Inserts an element into the DesignerActionItemCollection at the specified index. |
MemberwiseClone() |
创建当前 Object 的浅表副本。Creates a shallow copy of the current Object. (继承自 Object) |
OnClear() |
清除 CollectionBase 实例的内容时执行其他自定义进程。Performs additional custom processes when clearing the contents of the CollectionBase instance. (继承自 CollectionBase) |
OnClearComplete() |
在清除 CollectionBase 实例的内容之后执行其他自定义进程。Performs additional custom processes after clearing the contents of the CollectionBase instance. (继承自 CollectionBase) |
OnInsert(Int32, Object) |
在向 CollectionBase 实例中插入新元素之前执行其他自定义进程。Performs additional custom processes before inserting a new element into the CollectionBase instance. (继承自 CollectionBase) |
OnInsertComplete(Int32, Object) |
在向 CollectionBase 实例中插入新元素之后执行其他自定义进程。Performs additional custom processes after inserting a new element into the CollectionBase instance. (继承自 CollectionBase) |
OnRemove(Int32, Object) |
当从 CollectionBase 实例移除元素时执行其他自定义进程。Performs additional custom processes when removing an element from the CollectionBase instance. (继承自 CollectionBase) |
OnRemoveComplete(Int32, Object) |
在从 CollectionBase 实例中移除元素之后执行其他自定义进程。Performs additional custom processes after removing an element from the CollectionBase instance. (继承自 CollectionBase) |
OnSet(Int32, Object, Object) |
当在 CollectionBase 实例中设置值之前执行其他自定义进程。Performs additional custom processes before setting a value in the CollectionBase instance. (继承自 CollectionBase) |
OnSetComplete(Int32, Object, Object) |
当在 CollectionBase 实例中设置值后执行其他自定义进程。Performs additional custom processes after setting a value in the CollectionBase instance. (继承自 CollectionBase) |
OnValidate(Object) |
当验证值时执行其他自定义进程。Performs additional custom processes when validating a value. (继承自 CollectionBase) |
Remove(DesignerActionItem) |
从 DesignerActionItemCollection 中移除特定对象的第一个匹配项。Removes the first occurrence of a specific object from the DesignerActionItemCollection. |
RemoveAt(Int32) |
移除 CollectionBase 实例的指定索引处的元素。Removes the element at the specified index of the CollectionBase instance. 此方法不可重写。This method is not overridable. (继承自 CollectionBase) |
ToString() |
返回表示当前对象的字符串。Returns a string that represents the current object. (继承自 Object) |
显式接口实现
ICollection.CopyTo(Array, Int32) |
从目标数组的指定索引处开始将整个 CollectionBase 复制到兼容的一维 Array。Copies the entire CollectionBase to a compatible one-dimensional Array, starting at the specified index of the target array. (继承自 CollectionBase) |
ICollection.IsSynchronized |
获取一个值,该值指示是否同步对 CollectionBase 的访问(线程安全)。Gets a value indicating whether access to the CollectionBase is synchronized (thread safe). (继承自 CollectionBase) |
ICollection.SyncRoot |
获取可用于同步对 CollectionBase 的访问的对象。Gets an object that can be used to synchronize access to the CollectionBase. (继承自 CollectionBase) |
IList.Add(Object) |
将对象添加到 CollectionBase 的结尾处。Adds an object to the end of the CollectionBase. (继承自 CollectionBase) |
IList.Contains(Object) |
确定 CollectionBase 是否包含特定元素。Determines whether the CollectionBase contains a specific element. (继承自 CollectionBase) |
IList.IndexOf(Object) |
搜索指定的 Object,并返回整个 CollectionBase 中第一个匹配项的从零开始的索引。Searches for the specified Object and returns the zero-based index of the first occurrence within the entire CollectionBase. (继承自 CollectionBase) |
IList.Insert(Int32, Object) |
将元素插入 CollectionBase 的指定索引处。Inserts an element into the CollectionBase at the specified index. (继承自 CollectionBase) |
IList.IsFixedSize |
获取一个值,该值指示 CollectionBase 是否具有固定大小。Gets a value indicating whether the CollectionBase has a fixed size. (继承自 CollectionBase) |
IList.IsReadOnly |
获取一个值,该值指示 CollectionBase 是否为只读。Gets a value indicating whether the CollectionBase is read-only. (继承自 CollectionBase) |
IList.Item[Int32] |
获取或设置指定索引处的元素。Gets or sets the element at the specified index. (继承自 CollectionBase) |
IList.Remove(Object) |
从 CollectionBase 中移除特定对象的第一个匹配项。Removes the first occurrence of a specific object from the CollectionBase. (继承自 CollectionBase) |
扩展方法
Cast<TResult>(IEnumerable) |
将 IEnumerable 的元素强制转换为指定的类型。Casts the elements of an IEnumerable to the specified type. |
OfType<TResult>(IEnumerable) |
根据指定类型筛选 IEnumerable 的元素。Filters the elements of an IEnumerable based on a specified type. |
AsParallel(IEnumerable) |
启用查询的并行化。Enables parallelization of a query. |
AsQueryable(IEnumerable) |
将 IEnumerable 转换为 IQueryable。Converts an IEnumerable to an IQueryable. |