本文整理汇总了C#中MongoCollection.Count方法的典型用法代码示例。如果您正苦于以下问题：C# MongoCollection.Count方法的具体用法？C# MongoCollection.Count怎么用？C# MongoCollection.Count使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MongoCollection的用法示例。
在下文中一共展示了MongoCollection.Count方法的10个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Find
public IEnumerable<IDictionary<string, object>> Find(MongoCollection<BsonDocument> collection, SimpleQuery query, out IEnumerable<SimpleQueryClauseBase> unhandledClauses)
{
var builder = MongoQueryBuilder.BuildFrom(query);
unhandledClauses = builder.UnprocessedClauses;
if (builder.IsTotalCountQuery)
{
long count;
if (builder.Criteria == null)
count = collection.Count();
else
count = collection.Count(_expressionFormatter.Format(builder.Criteria));
//TODO: figure out how to make count a long
builder.SetTotalCount((int)count);
}
if (!builder.SkipCount.HasValue && builder.TakeCount.HasValue && builder.TakeCount.Value == 1)
return new[] { FindOne(collection, builder.Criteria) };
var cursor = CreateCursor(collection, builder.Criteria);
ApplyFields(cursor, builder.Columns);
ApplySorting(cursor, builder.Order);
ApplySkip(cursor, builder.SkipCount);
ApplyTake(cursor, builder.TakeCount);
var aliases = builder.Columns.OfType<ObjectReference>().ToDictionary(x => ExpressionFormatter.GetFullName(x), x => x.GetAlias());
return cursor.Select(x => x.ToSimpleDictionary(aliases));
}示例2: CreateAndInsertMultipleDocumentIntoCollection
/// <summary>
/// Demo inserting multiple document into collection.
/// </summary>
/// <param name="orders">The orders.</param>
private static void CreateAndInsertMultipleDocumentIntoCollection(MongoCollection<Order> orders)
{
Console.WriteLine("\n\n======= Insert Multiple Documents =======");
Console.WriteLine(string.Format("Document Count Before Insert: [ {0} ]", orders.Count()));
// Create new orders.
var order1 = new Order
{
OrderAmount = 100.23,
CustomerName = "Bugs Bunny"
};
var order2 = new Order
{
OrderAmount = 0.01,
CustomerName = "Daffy Duck"
};
IEnumerable<Order> orderList = new List<Order> { order1, order2 };
// Insert an IEnumerable.
orders.InsertBatch(orderList);
Console.WriteLine(string.Format("Inserted: {0}", order1));
Console.WriteLine(string.Format("Inserted: {0}", order2));
Console.WriteLine(string.Format("Document Count After Insert: [ {0} ]", orders.Count()));
}示例3: DeleteAllDocumentsFromCollection
/// <summary>
/// Demo deleting documents from collection.
/// </summary>
/// <param name="orders">The orders.</param>
static void DeleteAllDocumentsFromCollection( MongoCollection< Order > collection )
{
Console.WriteLine( "\n\n======= Delete Documents =======" );
Console.WriteLine( string.Format( "Document Count Before Delete: [ {0} ]", collection.Count() ) );
// Delete documents matching a criteria.
collection.Remove( new {CustomerName = "Elmer Fudd"} );
Console.WriteLine( string.Format( "Document Count After Deleting Elmer Fudd: [ {0} ]", collection.Count() ) );
// Delete all docs.
collection.Remove( new {} );
Console.WriteLine( "Deleted all docs" );
Console.WriteLine( string.Format( "Document Count After Deleting All Docs: [ {0} ]", collection.Count() ) );
}示例4: CoverDB
public static void CoverDB(string player, MongoCollection oldPlayer, MongoCollection newPlayer)
{
Console.WriteLine("正在合并:" + player);
int show = 0;
int count = 0;
var dates = oldPlayer.FindAllAs<BsonDocument>();
foreach (var v in dates)
{
BsonValue key;
if (v.TryGetValue("_id", out key))
{
if (newPlayer.Count(Query.EQ("_id", key)) <= 0)
{
count++;
newPlayer.Save(v);
}
}
show++;
if (show % 1000 == 0)
{
Console.WriteLine("正在合并:" + show);
}
}
Console.WriteLine(player + ":" + count);
}示例5: ReloadExisting
public void ReloadExisting()
{
connectionString = "mongodb://localhost/?safe=true";
server = MongoServer.Create(connectionString);
habraDb = server.GetDatabase("habr", SafeMode.True);
posts = habraDb.GetCollection<Post>("posts");
existedBeforeCount = posts.Count();
using (client = new WebClient())
{
client.Encoding = Encoding.UTF8;
foreach (var post in posts.FindAll())
{
try
{
Console.Clear();
Console.WriteLine(string.Format("Reloaded: {0} posts of {1} possible", reloadedCount, existedBeforeCount));
Console.WriteLine("Processing: " + post.Url);
Console.WriteLine("Loading...");
string pageContent = client.DownloadString(post.Url);
Console.WriteLine("Parsing...");
ParsePostPage(post.Url, pageContent);
}
catch { }
}
}
}示例6: DownloadNew
public void DownloadNew()
{
connectionString = "mongodb://localhost/?safe=true";
server = MongoServer.Create(connectionString);
habraDb = server.GetDatabase("habr", SafeMode.True);
posts = habraDb.GetCollection<Post>("posts");
existedBeforeCount = posts.Count();
int postListPage = 1;
while (downloadedCount < NEEDED_POST_COUNT)
{
using (client = new WebClient())
{
client.Encoding = Encoding.UTF8;
try
{
string url = "http://habrahabr.ru/posts/collective/";
if (postListPage > 1)
url += string.Format("page{0}/", postListPage);
string pageContent = client.DownloadString(url);
ParsePostListPage(pageContent);
postListPage++;
}
catch { }
}
}
}示例7: CreateAndInsertSingleDocumentIntoCollection
/// <summary>
/// Inserts a new document.
/// </summary>
/// <param name="collection">The orders.</param>
private static void CreateAndInsertSingleDocumentIntoCollection(MongoCollection<Order> collection)
{
Console.WriteLine("\n\n======= Insert Multiple Documents =======");
Console.WriteLine(string.Format("Document Count Before Insert: [ {0} ]", collection.Count()));
// Create a new order.
var order = new Order()
{
OrderAmount = 57.22,
CustomerName = "Elmer Fudd"
};
// Add the new order to the mongo orders colleciton.
collection.Insert(order);
Console.WriteLine(string.Format("Inserted: {0}", order));
Console.WriteLine(string.Format("Document Count After Insert: [ {0} ]", collection.Count()));
}示例8: CheckLocExists
private string CheckLocExists(double latitude, double longitude, MongoCollection<Location> locations, out string statusMessage)
{
statusMessage = null;
string locationID = null;
try
{
if (locations.Count() > 0)
{
var locationQuery = Query.And(Query.EQ("longitude", longitude), Query.EQ("latitude", latitude));
var existedLocation = locations.FindOne(locationQuery);
if (existedLocation != null)
locationID = (existedLocation as Location).locationID;
//File.WriteAllText(@"C:\locations.txt", "(current locationQuery) = " + locationQuery.ToJson() + " (current existedLocation) = " + existedLocation.ToJson() + " locationID = " + locationID + " " + DateTime.Now);
}
}
catch (Exception e)
{
locationID = null;
statusMessage = "An exception has occured in CheckLocExists method. " + e.Message;
}
return locationID;
}示例9: CheckUserExists
private string CheckUserExists(string userName, MongoCollection<UserLegitimation> users, out string statusMessage)
{
statusMessage = null;
string userID = null;
try
{
if (users.Count() > 0)
{
var userQuery = Query.EQ("userName", userName);
var existedUser = users.FindOne(userQuery);
if (existedUser != null)
userID = (existedUser as UserLegitimation).userID;
}
}
catch (Exception e)
{
userID = null;
statusMessage = "An exception has occured in CheckUserExists method. " + e.Message;
}
return userID;
}示例10: DoesCounterCollectionHaveDocuments
public bool DoesCounterCollectionHaveDocuments(MongoCollection<BsonDocument> counterCollection)
{
long count = counterCollection.Count();
return count > 0;
}