DataRowIndexBuffer.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / infocard / Service / managed / Microsoft / InfoCards / DataRowIndexBuffer.cs / 1 / DataRowIndexBuffer.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------
namespace Microsoft.InfoCards
{ 
 	using System;
	using System.Collections.Specialized; 
	using System.Collections.Generic; 
	using System.IO;
 	using System.Runtime.InteropServices; 
	using System.Threading;


 	// 
 	// Summary:
	//	Class to manage the collection of IndexObjects that 
 	//	are bound to a DataRow. 
	//
	// Remarks: 
	//	Should never be invoked.  Use DataRow instead.
 	//
    internal class DataRowIndexBuffer
    { 
        Dictionary> m_objects;
 
        public DataRowIndexBuffer( ) 
        {
        	m_objects = new Dictionary>(); 
        }

        //
        // Summary: 
        //	Returns the list of names for all indexes that have IndexObjects
        //	associated with them. 
        // 
        // Remarks:
        //	 
        //
        // Returns:
        //	Copy of the names of all indexes that have IndexObjects
        // 
        public string[] GetIndexNames()
        { 
        	List keys = new List( m_objects.Keys ); 
        	
        	return keys.ToArray(); 
        }

        //
        // Summary: 
        //	Returns a pointer to the actual inner list of IndexObjects.
        // 
        // Remarks: 
        //	If you are using the list returned from this method, you should
        //	modify only before saving. 
        //
        // Paramters:
        //	name:		Name of the index you want
        // 
        // Returns:
        //	The innerlist for a given index. 
        // 
        public List this[ string name ]
        { 
        	get
        	{
        		if( !m_objects.ContainsKey( name ) )
        		{ 
        			m_objects.Add( name, new List() );
        		} 
        			 
        		return m_objects[ name ];
        	} 
        }

        //
        // Summary: 
        //	Clears All index values from all indexes
        // 
        public void Clear() 
        {
        	m_objects.Clear(); 
        }

        //
        // Summary: 
        //	Clears all values from a specific index.
        // 
        // Remarks: 
        //
        // Paramters: 
        //	name:		Name of the index you want to clear.
        public void ClearIndexValues( string name )
        {
        	m_objects.Remove( name ); 
        }
 
        // 
        // Summary:
        //	Adds a single index object to a specific index. 
        //
        // Remarks:
        //
        // Parameters: 
        //	name:		Name of the index to add the value to
        //	obj:		The index object to add. 
        // 
        public void AddIndexValue( string name, IndexObject obj )
        { 
        	this[ name ].Add( obj );
        }

        // 
		// Summary:
 		//	Adds a range of index objects to a specific index. 
 		// 
		// Remarks:
 		// 
		// Parameters:
		//	name:		Name of the index to add the value to
		//	objs:		The index object array to add.
        // 
        public void AddIndexValues( string name, IndexObject[] objs )
 		{ 
			this[ name ].AddRange( objs ); 
 		}
 
        //
 		// Summary:
		//	Set a range of index objects to a specific index.
 		// 
		// Remarks:
		//	This will clear the list before adding all of the values. 
		// 
 		// Parameters:
		//	name:			Name of the index to add the value to 
 		//	indexObjects:	The index object array to add.
        //
        public void SetIndexValues( string name, IndexObject[] indexObjects )
 		{ 
			this[ name ].Clear();
 			this[ name ].AddRange( indexObjects ); 
		} 

       	// 
       	// Summary:
       	//	Gets the count of index valus in a given index.
       	//
       	// Remarks: 
       	//
       	// Paramters: 
       	//	name:		The name of the index to get the count for. 
       	//
       	// Returns: 
       	//	The count of index values for the specified index.
       	//
        public int GetValueCount( string name )
        { 
			if( !m_objects.ContainsKey( name ) )
			{ 
 				return 0; 
			}
 			 
 			return m_objects[ name ].Count;
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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