/// <summary>
/// 升序
/// </summary>
/// <param name="orderBy"></param>
/// <returns></returns>
public IFrom <T> Asc(Expression <Func <T, object> > orderBy)
{
var name = WhererVisitor.GetColumnName <T>(orderBy.Body);
OrderBy(string.Format("{0} ASC", name));
return(this);
}
/// <summary>
/// 更新指定字段
/// </summary>
/// <param name="expression"></param>
/// <param name="value"></param>
/// <returns></returns>
public IFrom <T> Set(Expression <Func <T, object> > expression, object value)
{
var column = WhererVisitor.GetColumnName <T>(expression.Body);
var field = TypeMapper.GetFieldName <T>(column);
_set.AppendFormat("{0}{1} = @{2}", _set.Length == 0 ? "" : ",", column, TypeMapper.GetFieldName <T>(column));
Param.Add("@" + field, value);
return(this);
}