/// <summary>
/// 异步向DataSet中填充Command返回的结果
/// </summary>
/// <param name="command">Command实例(要求此时Command对象的Connection已经设置并初始化)</param>
/// <param name="dataSet">待填充的DataSet</param>
/// <param name="tableNames">每个查询结果的DataTable名称</param>
/// <param name="pageNo">要求返回数据所在的页码【以0开始】</param>
/// <param name="pageSize">要求返回数据每一页数据量【如果为零则表示所有数据】</param>
private async Task DoLoadDataSetAsync(DbCommand command, DataSet dataSet, int pageNo, int pageSize, string[] tableNames)
{
CheckTableNames(tableNames);
using (DbContext context = await DbContext.GetContextAsync(this.name))
{
command.Connection = context.Connection;
using (DbDataAdapter adapter = this.factory.CreateDataAdapter())
{
adapter.SelectCommand = command;
AddTableMappingsInAdapter(adapter, tableNames);
DoDbEvent(command, DbEventType.BeforeExecution);
if (pageSize == 0)
{
await adapter.FillAsync(dataSet);
}
else
{
string srcTableName = tableNames.Length > 0 ? tableNames[0] : "Table";
await adapter.FillAsync(dataSet, pageNo *pageSize, pageSize, srcTableName);
}
DoDbEvent(command, DbEventType.AfterExecution);
}
}
}