数据源，网格视图和下拉列表

本文介绍了数据源，网格视图和下拉列表的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

你好， 我有一个使用DataSource连接到DB的网格视图. 数据源具有一个查询，该查询从数据库中选择具有特定ID的项目. 另外，我有一个DropDown-List，我想更新dataSource的查询，因此，当用户从DropDown-List中选择某个索引时，它将在Grid View中显示相关数据. 请帮忙！

Hello, I have a Grid View that connected to DB with DataSource. The DataSource have a query that selects items from the DB that have a specific ID. also, I have a DropDown-List and I want to update the query of the dataSource so when the user selects some index from the DropDown-List it will show the relevant data in the Grid View . Please Help! Thanks.

推荐答案

使用BindingSource.Filter过滤您的dataGridView. 更改DropDownList_SelectedIndexChanged中的过滤器. Use BindingSource.Filter to filter your dataGridView. change the filter in DropDownList_SelectedIndexChanged.