SelectColumnCollection Class

In This Topic

Represents a collection of columns and expressions in a SelectStatement object.

Syntax

Visual Basic
C#

'Declaration
 
Public NotInheritable Class SelectColumnCollection 
   Inherits System.Collections.CollectionBase
   Implements System.Collections.ICollection, System.Collections.IEnumerable, System.Collections.IList

public sealed class SelectColumnCollection : System.Collections.CollectionBase, System.Collections.ICollection, System.Collections.IEnumerable, System.Collections.IList

Remarks

Use SelectColumnCollection class to manage columns used in a query. To access the collection use the SelectStatement.Columns, SelectStatement.GroupBy and SelectStatement.OrderBy properties.

Example

In the following sample we retrieve a collection of SelectColumns from an OracleSelectStatement object and print them. For example, if statement represents the command:

SELECT test.dept.dname Department, test.dept.loc Location
    FROM test.dept

the output of the sample would be the following:

test.dept.dname Department
test.dept.loc Location

csharp

SelectColumnCollection collection = statement.Columns;

foreach (SelectColumn column in collection)         
        Console.WriteLine(column.ToString());

Visual Basic

Dim collection As SelectColumnCollection = statement.Columns
For Each column In collection
        Console.WriteLine(column.ToString())
Next

Inheritance Hierarchy

System.Object
System.Collections.CollectionBase
Devart.Common.SelectColumnCollection

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

SelectColumnCollection Members
Devart.Common Namespace

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