ColumnHeaderCollection Class
Represents a collection of ListView ColumnHeader objects.
Namespace: elsystem.windows.forms
Properties
                                                         Additional 
 properties, methods, and events are described in the classes listed 
 under Inheritance Hierarchy (see below).
   Additional 
 properties, methods, and events are described in the classes listed 
 under Inheritance Hierarchy (see below).
| Name | Type | Description | |
|   | Count | int | Gets the number of items in the collection. | 
|   | IsReadOnly | bool | Gets a Boolean value indicating whether the collection is read-only. | 
|   | Item[Indx] | object | Gets the ColumHeader at the specified index in the collection. | 
|   | Item[key] | object | Gets the ColumnHeader with the specified string key (name). | 
Methods
| Name | Description | |
|   | Add(ColumnHeader) | Adds the specified ColumnHeader object to the collection. | 
|   | Add(name) | Adds a ColumnHeader object with the specified name. | 
|   | Clear | Removes all items from the collection. | 
|   | Contains(ColumnHeader) | Returns true if the specified ColumnHeader exists within the collection. | 
|   | ContainsKey(key) | Returns true if the specified column key (name) exists within the collection. | 
|   | IndexOfKey(key) | Returns the integer index of the ColumnHeader with the specified key (name). | 
|   | Insert(index, text) | Creates a new ColumnHeader with the specified text and inserts the ColumnHeader into the collection at the specified index location. | 
|   | Insert(index, column) | Inserts an existing ColumnHeader into the collection at the specified index location. | 
|   | Remove(column) | Removes the specified ColumnHeader from the collection. | 
|   | RemoveAt(index) | Removes the ColumnHeader at the specified index location from the collection. | 
|   | RemoveByKey(key) | Removes the ColumnHeader with the specified key (name) from the collection. |