ACCESS数据库访问组件（四）

using System;
using System.Data;
using System.Data.OleDb;
using System.Collections;

namespace XLang.VideoOnline.Framework.Database.Access
{
 /// <summary>
 /// Summary description for ACCESS_DataViewsCollection.
 /// </summary>
 public class DataViewsCollection
 {
  private Database.Access.DataView[] _views;

  private int _count;

  public int Count
  {
   get
   { 
    return _count;
   }
  }

  
  public DataViewsCollection(OleDbConnection connection)
  {
   System.Data.DataTable schemaTable = connection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables,
    new object[] {null, null,null, "VIEW"});

   _count=schemaTable.Rows.Count;
   _views=new Database.Access.DataView[_count];

   for(int i=0;i<_count;i++)
   {
    _views[i]=new Database.Access.DataView(schemaTable.Rows[i][2].ToString());
   }
  }

  public Database.Access.DataView this [int tableIndex]
  {
   get
   {
    return _views[tableIndex];
   }
   set
   {
    _views[tableIndex]=value;
   }
  }

  public Database.Access.DataView this [string viewName]
  {
   get
   {
    return this [NameToIndex(viewName)];
   }
   set
   {
    this [NameToIndex(viewName)]=value;
   }
  }

  private int NameToIndex(string viewName)
  {
   for(int i=0;i<_views.Length;i++)
   {
    if(_views[i].Name.ToUpper()==viewName.ToUpper())
     return i;
   }
   return -1;
  }
  
  

 }
}

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