/// <summary>
/// 建立一个Where嵌套查询
/// </summary>
/// <param name="nested">嵌套查询</param>
/// <param name="linker">链接标识</param>
/// <returns>查询器</returns>
public IDataTableSelector Where(Action <IDataTableSelector> nested, SelectorLinker linker = SelectorLinker.And)
{
selector = new DataTableSelector(this);
return(selector.Where(nested, linker));
}
/// <summary>
/// 建立一个Where查询
/// </summary>
/// <param name="field">字段名</param>
/// <param name="operators">操作符</param>
/// <param name="val">值</param>
/// <param name="linker">语句链接符</param>
/// <returns>查询器</returns>
public IDataTableSelector Where(string field, string operators, string val, SelectorLinker linker = SelectorLinker.And)
{
selector = new DataTableSelector(this);
return(selector.Where(field, operators, val, linker));
}