无法使用datagridview的使用C＃中的WinForms添加新行 [英] unable to add new row using datagridview using C# in Winforms

问题描述

我想作一个简单的数据输入应用程序。所以，我做了以下

i wanted to make a simple data entry application. So i did the following

• 创建一个新的Windows窗体应用程序


• 新增一个DataGridView


• 增加了一个新的数据源（SQL Express数据库，有3列一个表 - ID，姓名，号码）ID是整数，是主键


• 作为设计师自动填充DataSet中，的BindingSource和TableAdapter的我跑的应用程序。

• Created a new Windows Form Application
• Added a DataGridView
• Added a new DataSource (SQL Express Database, having a single table with 3 columns - id, name, number) id is integer and is the primary key
• As the designer automatically populates the DataSet, BindingSource and TableAdapter i ran the application.

当我跑这表明现有的数据应用，我能够通过单击空行来添加新数据或编辑现有数据。但是，这并不存储（提交）数据给我。

when i ran the application it showed the existing data, and i was able to add new data by clicking on empty row or edit existing data. But it did not store (commit) the data for me.

在我做出改变，我只是关闭应用程序。我记得做它前一段时间，它用来反映更改。我一定要添加任何代码提交修改？

After i make the changes i just close the application. I remember doing it some time ago and it used to reflect changes. Do i have to add any code to commit the changes?

推荐答案

一个数据集（定义）断开。如果您要提交新的数据/更新/删除（等），你将有权要求适配器保存更改。如果你已经有一个生成的适配器，这应该是约1行额外的代码...（的 更新 适配器上，通常是通过保存按钮的点击处理）。

A dataset is (by definition) disconnected. If you want to commit new data / updates / deletes (etc), you are going to have to ask the adapter to save the changes. If you already have a generated adapter, this should be about 1 line of extra code... (Update on the adapter, usually via a save button's Click handler).

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