/// <summary>
/// 使用 Sql 进行查询。
/// 分页默认实现为使用内存进行分页。
/// </summary>
/// <param name="dba">The dba.</param>
/// <param name="args">The arguments.</param>
public virtual void QueryTable(IDbAccesser dba, ITableQueryArgs args)
{
if (_hasLOB)
{
args.FormattedSql = this.ReplaceLOBColumns(args.FormattedSql);
}
using (var reader = dba.QueryDataReader(args.FormattedSql, args.Parameters))
{
var table = args.ResultTable;
if (table.Columns.Count == 0)
{
LiteDataTableAdapter.AddColumns(table, reader);
}
var columnsCount = table.Columns.Count;
PagingHelper.MemoryPaging(reader, r =>
{
var row = table.NewRow();
for (int i = 0; i < columnsCount; i++)
{
var value = reader[i];
if (value != DBNull.Value)
{
row[i] = value;
}
}
table.Rows.Add(row);
}, args.PagingInfo);
}
}
public override void QueryTable(IDbAccesser dba, ITableQueryArgs args)
{
var pagingInfo = args.PagingInfo;
if (PagingInfo.IsNullOrEmpty(pagingInfo) || this.GetPagingLocation(pagingInfo) == PagingLocation.Memory)
{
base.QueryTable(dba, args);
}
else
{
//转换为分页查询 SQL
var parts = ParsePagingSqlParts(args.FormattedSql);
CreatePagingSql(ref parts, pagingInfo);
//读取分页的数据
var table = args.ResultTable;
var reader = dba.QueryDataReader(parts.PagingSql, args.Parameters);
using (reader)
{
LiteDataTableAdapter.Fill(table, reader);
}
QueryTotalCountIf(dba, pagingInfo, parts, args.Parameters);
}
}
/// <summary>
/// 使用 Sql 进行查询。
/// 分页默认实现为使用内存进行分页。
/// </summary>
/// <param name="dba">The dba.</param>
/// <param name="args">The arguments.</param>
public virtual void QueryTable(IDbAccesser dba, ITableQueryArgs args)
{
if (_hasLOB)
{
args.FormattedSql = this.ReplaceLOBColumns(args.FormattedSql);
}
using (var reader = dba.QueryDataReader(args.FormattedSql, args.Parameters))
{
var table = args.ResultTable;
if (table.Columns.Count == 0)
{
LiteDataTableAdapter.AddColumns(table, reader);
}
var columnsCount = table.Columns.Count;
PagingHelper.MemoryPaging(reader, r =>
{
var row = table.NewRow();
for (int i = 0; i < columnsCount; i++)
{
var value = reader[i];
if (value != DBNull.Value)
{
row[i] = value;
}
}
table.Rows.Add(row);
}, args.PagingInfo);
}
}
public override void QueryTable(IDbAccesser dba, ITableQueryArgs args)
{
var pagingInfo = args.PagingInfo;
if (PagingInfo.IsNullOrEmpty(pagingInfo) || this.GetPagingLocation(pagingInfo) == PagingLocation.Memory)
{
base.QueryTable(dba, args);
}
else
{
//转换为分页查询 SQL
var parts = ParsePagingSqlParts(args.FormattedSql);
CreatePagingSql(ref parts, pagingInfo);
//读取分页的数据
var table = args.ResultTable;
using (var reader = dba.QueryDataReader(parts.PagingSql, args.Parameters))
{
LiteDataTableAdapter.Fill(table, reader);
}
QueryTotalCountIf(dba, pagingInfo, parts, args.Parameters);
}
}
