C# Class System.Data.DataColumnCollection

Inheritance: InternalDataCollectionBase

显示文件 Open project: dotnet/corefx Class Usage Examples

Private Properties

Property	Type	Description
AddAt	void
AddColumnsImplementingIChangeTrackingList	void
ArrayAdd	void
ArrayAdd	void
ArrayRemove	void
AssignName	string
BaseAdd	void
BaseGroupSwitch	void
BaseRemove	void
CanRegisterName	bool
CanRemove	bool
CheckIChangeTracking	void
Contains	bool
DataColumnCollection	System.Collections
EnsureAdditionalCapacity	void
FinishInitCollection	void
IndexOfCaseInsensitive	int
MakeName	string
MoveTo	void
OnCollectionChanged	void
OnCollectionChanging	void
OnColumnPropertyChanged	void
RegisterColumnName	void
RemoveColumnsImplementingIChangeTrackingList	void
UnregisterName	void
this	DataColumn

Public Methods

Method	Description
Add ( ) : DataColumn	Creates and adds a to a columns collection.
Add ( string columnName ) : DataColumn	Creates and adds a with the specified name to the columns collection.
Add ( string columnName, Type type ) : DataColumn	Creates and adds a with the specified name and type to the columns collection.
Add ( string columnName, Type type, string expression ) : DataColumn	Creates and adds a with the specified name, type, and compute expression to the columns collection.
Add ( DataColumn column ) : void	Adds the specified to the columns collection.
AddRange ( DataColumn columns ) : void
CanRemove ( DataColumn column ) : bool	Checks if a given column can be removed from the collection.
Clear ( ) : void	Clears the collection of any columns.
Contains ( string name ) : bool	Checks whether the collection contains a column with the specified name.
CopyTo ( DataColumn array, int index ) : void
IndexOf ( DataColumn column ) : int	Returns the index of a specified .
IndexOf ( string columnName ) : int	Returns the index of a column specified by name.
Remove ( DataColumn column ) : void	Removes the specified from the collection.
Remove ( string name ) : void	Removes the column with the specified name from the collection.
RemoveAt ( int index ) : void	Removes the column at the specified index from the collection.
this ( int index ) : DataColumn	Gets the from the collection at the specified index.
this ( string name ) : DataColumn	Gets the from the collection with the specified name.

Private Methods

Method	Description
AddAt ( int index, DataColumn column ) : void
AddColumnsImplementingIChangeTrackingList ( DataColumn dataColumn ) : void
ArrayAdd ( DataColumn column ) : void	Adds the column to the columns array.
ArrayAdd ( int index, DataColumn column ) : void
ArrayRemove ( DataColumn column ) : void
AssignName ( ) : string	Creates a new default name.
BaseAdd ( DataColumn column ) : void	Does verification on the column and it's name, and points the column at the dataSet that owns this collection. An ArgumentNullException is thrown if this column is null. An ArgumentException is thrown if this column already belongs to this collection, belongs to another collection. A DuplicateNameException is thrown if this collection already has a column with the same name (case insensitive).
BaseGroupSwitch ( DataColumn oldArray, int oldLength, DataColumn newArray, int newLength ) : void	BaseGroupSwitch will intelligently remove and add tables from the collection.
BaseRemove ( DataColumn column ) : void	Does verification on the column and it's name, and clears the column's dataSet pointer. An ArgumentNullException is thrown if this column is null. An ArgumentException is thrown if this column doesn't belong to this collection or if this column is part of a relationship. An ArgumentException is thrown if another column's compute expression depends on this column.
CanRegisterName ( string name ) : bool
CanRemove ( DataColumn column, bool fThrowException ) : bool
CheckIChangeTracking ( DataColumn column ) : void
Contains ( string name, bool caseSensitive ) : bool
DataColumnCollection ( DataTable table ) : System.Collections	DataColumnCollection constructor. Used only by DataTable.
EnsureAdditionalCapacity ( int capacity ) : void
FinishInitCollection ( ) : void
IndexOfCaseInsensitive ( string name ) : int
MakeName ( int index ) : string	Makes a default name with the given index. e.g. Column1, Column2, ... Columni
MoveTo ( DataColumn column, int newPosition ) : void
OnCollectionChanged ( CollectionChangeEventArgs ccevent ) : void	Raises the event.
OnCollectionChanging ( CollectionChangeEventArgs ccevent ) : void
OnColumnPropertyChanged ( CollectionChangeEventArgs ccevent ) : void
RegisterColumnName ( string name, DataColumn column ) : void	Registers this name as being used in the collection. Will throw an ArgumentException if the name is already being used. Called by Add, All property, and Column.ColumnName property. if the name is equivalent to the next default name to hand out, we increment our defaultNameIndex. NOTE: To add a child table, pass column as null
RemoveColumnsImplementingIChangeTrackingList ( DataColumn dataColumn ) : void
UnregisterName ( string name ) : void	Unregisters this name as no longer being used in the collection. Called by Remove, All property, and Column.ColumnName property. If the name is equivalent to the last proposed default name, we walk backwards to find the next proper default name to use.
this ( string name, string ns ) : DataColumn

Method Details

Add() public method

Creates and adds a to a columns collection.

public Add ( ) : DataColumn
return	DataColumn

Add() public method

Creates and adds a with the specified name to the columns collection.

public Add ( string columnName ) : DataColumn
columnName	string
return	DataColumn

Add() public method

Creates and adds a with the specified name and type to the columns collection.

public Add ( string columnName, Type type ) : DataColumn
columnName	string
type	System.Type
return	DataColumn

Add() public method

Creates and adds a with the specified name, type, and compute expression to the columns collection.

public Add ( string columnName, Type type, string expression ) : DataColumn
columnName	string
type	System.Type
expression	string
return	DataColumn

Add() public method

Adds the specified to the columns collection.

public Add ( DataColumn column ) : void
column	DataColumn
return	void

AddRange() public method

public AddRange ( DataColumn columns ) : void
columns	DataColumn
return	void

CanRemove() public method

Checks if a given column can be removed from the collection.

public CanRemove ( DataColumn column ) : bool
column	DataColumn
return	bool

Clear() public method

Clears the collection of any columns.

public Clear ( ) : void
return	void

Contains() public method

Checks whether the collection contains a column with the specified name.

public Contains ( string name ) : bool
name	string
return	bool

CopyTo() public method

public CopyTo ( DataColumn array, int index ) : void
array	DataColumn
index	int
return	void

IndexOf() public method

Returns the index of a specified .

public IndexOf ( DataColumn column ) : int
column	DataColumn
return	int

IndexOf() public method

Returns the index of a column specified by name.

public IndexOf ( string columnName ) : int
columnName	string
return	int

Remove() public method

Removes the specified from the collection.

public Remove ( DataColumn column ) : void
column	DataColumn
return	void

Remove() public method

Removes the column with the specified name from the collection.

public Remove ( string name ) : void
name	string
return	void

RemoveAt() public method

Removes the column at the specified index from the collection.

public RemoveAt ( int index ) : void
index	int
return	void

this() public method

Gets the from the collection at the specified index.

public this ( int index ) : DataColumn
index	int
return	DataColumn

this() public method

Gets the from the collection with the specified name.

public this ( string name ) : DataColumn
name	string
return	DataColumn