/// <summary>
/// async Paging Datas by Database
/// </summary>
/// <param name="pageIndex">Current Index</param>
/// <param name="pageSize">Size of per Page</param>
/// <param name="fixedSql">The Sql which in the Front ( ex. CTE Query begin with the Keyword "WITH" ) </param>
/// <param name="selectSql">The Sql which begin with Keyword "SELECT" </param>
/// <param name="paramValues">Parameters</param>
/// <param name="connectionAliasName">the Alias Name of Connection (if not pass name,it will use the DEFAULT name instead.)</param>
/// <param name="commandType">Text | StoredProcedure</param>
public static async Task <PagingResult> PagingAsDatatableAsync(int pageIndex, int pageSize,
string fixedSql, string selectSql, SqlParameter[] paramValues,
string connectionAliasName = MicroDBHelper.ALIAS_NAME_DEFAULT, CommandType commandType = CommandType.Text
)
{
ExecuteAsyncDelegate action = async(m_Sql, m_paramValues, m_commandType) =>
{
return(await MicroDBHelper.ExecuteDataTableAsync(m_Sql, m_paramValues, connectionAliasName, m_commandType));
};
var ret = await AdapterFactory.CreateAdapter(connectionAliasName).DetailPagingAsync(action, pageIndex, pageSize, fixedSql, selectSql, paramValues, commandType);
return(new PagingResult(ret.querydt, pageIndex, pageSize, ret.totalCount));
}
/// <summary>
/// async Paging Datas by Database <para />
/// (need to reference: MicroDBHelperExpansionPack.EntityConversion )
/// </summary>
/// <typeparam name="T">Target Type</typeparam>
/// <param name="pageIndex">Current Index</param>
/// <param name="pageSize">Size of per Page</param>
/// <param name="fixedSql">The Sql which in the Front ( ex. CTE Query begin with the Keyword "WITH" ) </param>
/// <param name="selectSql">The Sql which begin with Keyword "SELECT" </param>
/// <param name="paramValues">Parameters</param>
/// <param name="transaction">transaction</param>
/// <param name="commandType">Text | StoredProcedure</param>
public static async Task <PagingResult <T> > PagingAsEntityAsync <T>(int pageIndex, int pageSize,
string fixedSql, string selectSql, SqlParameter[] paramValues,
MicroDBTransaction transaction, CommandType commandType = CommandType.Text
)
where T : class
{
ExecuteAsyncDelegate action = async(m_Sql, m_paramValues, m_commandType) =>
{
return(await MicroDBHelper.ExecuteDataTableAsync(m_Sql, m_paramValues, transaction, m_commandType));
};
var ret = await AdapterFactory.CreateAdapter(transaction.ConnectionAliasName).DetailPagingAsync(action, pageIndex, pageSize, fixedSql, selectSql, paramValues, commandType);
return(new PagingResult <T>(EntityConvert.ConvertToList <T>(ret.querydt), pageIndex, pageSize, ret.totalCount));
}
/// <summary>
/// Detail to PagingAsync
/// </summary>
public async Task <DetailPagingRet> DetailPagingAsync(ExecuteAsyncDelegate executeAction,
int pageIndex, int pageSize,
string fixedSql, string selectSql, SqlParameter[] paramValues,
CommandType commandType = CommandType.Text
)
{
//##0 init
string SELECTSQL, orderBodyString, SELECTWithoutOrder, fromBodyString, FINALSQL;
int totalCount = 0;
var paras = new List <SqlParameter>();
//##1 Check
DealHelper.DetailPagingHelper_Prepare(selectSql, out SELECTSQL);
try
{
DealHelper.DetailPagingHelper_SplitStrings(SELECTSQL, out orderBodyString, out SELECTWithoutOrder, out fromBodyString);
string sqlCount;
DetailPagingHelper_SqlCount(fixedSql, SELECTSQL, SELECTWithoutOrder, fromBodyString, orderBodyString, out sqlCount);
//##2 get record total and begin to page
DataTable countDt = await executeAction(sqlCount, paramValues, commandType);
DetailPagingHelper_SqlPage(countDt, paramValues, orderBodyString, SELECTWithoutOrder, fixedSql,
pageIndex, pageSize,
ref SELECTSQL, ref paras,
out totalCount, out FINALSQL);
//##3 exec sql expreession and return result
DataTable querydt = await executeAction(FINALSQL, paras.ToArray(), commandType);
return(DetailPagingHelper_returnResult(querydt, totalCount));
}
catch (SqlException ex)
{
throw DealHelper.DetailPagingHelper_CatchException_SqlException(ex, fixedSql, SELECTSQL);
}
catch (Exception ex)
{
throw DealHelper.DetailPagingHelper_CatchException_CommonException(ex, fixedSql, SELECTSQL, totalCount);
}
}
public MongoAsyncCursorSource(IQueryable <TElement> queryable, IQueryProvider realQueryProvider, ExecuteAsyncDelegate <IAsyncCursor <TElement> > executeAsyncFunction)
{
_queryable = queryable;
_realQueryProvider = realQueryProvider;
_executeAsyncFunction = executeAsyncFunction;
}
