[搞定]DataSet.Locate()函数的意思？**

zwjcooldd

dsbDetail1.DataSet.Locate('FDealPerson;FDealStep',Variants.VarArrayOf([lDealPerson,'审核意见']),[])   函数的意思？

lixy

定位记录。 用2个字段值

yancm

可以查delphi帮助
Implements a virtual method for searching a dataset for a specified record and making it the active record.

function Locate(const KeyFields: string; const KeyValues: Variant; Options: TLocateOptions): Boolean; virtual;

Description

This function

Checks whether the dataset is unidirectional, and if so, raises an EDatabaseError exception.
        Returns False, indicating that a matching record was not found and the active record was not changed.

Descendant classes that are not unidirectional override this method so that it locates the record where the fields identified by the semicolon-separated list of fields in KeyFields have the values specified by the Variant or Variant array KeyValues. Options indicates whether the search is case insensitive and whether partial matches are supported. Locate returns True if a record is found that matches the specified criteria and that record is now active.

aqmeng

Locate需要传递三个参数，第一个是KeyFields参数，用于指定要按哪些字段搜索，第二个是KeyValues参数，用于指定每个字段相应的值，第三个是Options参数，用于设置搜索选项。

这句话的意思是：
无条件搜索字段'FDealPerson;FDealStep'为Variants.VarArrayOf([lDealPerson,'审核意见'])的记录，并将当前记录定位至该记录

zwjcooldd

谢谢！