子例程调用刷新DataGridView不起作用 [英] Sub-Routine Call to Refresh DataGridView didn't Work
问题描述
在我的VB.NET程序中,问题有两种形式:
1.显示帐户
2.添加新帐户
在显示帐户中,我有一个名为RefreshData的子例程,它将数据从MS Access数据库获取到DataAdapter> DataSet> DataGridView。
从添加新帐户中,我在向帐户添加新帐户后调用了子例程display_accounts.RefreshData。
所以,它应该在显示账户的DataGridView中显示新添加的账户。
添加新账户中的Code Skelton是:
- 插入数据库
-Call:display_accounts.RefreshData
Code Skelton inDisplay帐户是:
选择从数据库中选择的命令
将数据导入DataAdapter
清算数据集
从DataAdapter向DataSet填充数据
设置DataGridView的DataSource o DataSet
刷新DataGridView
问题是DataGridView没有显示新添加的记录。
In My VB.NET Program, Problem is with two forms :
1. Display Accounts
2. Add New Accounts
In "Display Accounts", I have a Sub-Routine named "RefreshData" which gets data from MS Access Database into DataAdapter>DataSet>DataGridView.
From "Add New Accounts", I called the Sub-Routine "display_accounts.RefreshData" after adding new Account to Database.
So, It should display the newly added account in DataGridView of "Display Accounts".
Code Skelton in "Add New Accounts" is :
-Insert into Database
-Call : display_accounts.RefreshData
Code Skelton in "Display Accounts" is :
Select Command to Select from Database
Getting Data into DataAdapter
Clearing DataSet
Filling Data into DataSet from DataAdapter
Setting DataSource of DataGridView to DataSet
Refreshing DataGridView
Problem is DataGridView not displayed newly added record.
推荐答案
这看起来很抽象。这可能是不可能的。你可以发送代码块。
你可以在每次填充数据集创建一个新实例时做一件事,或者你可以在填充之前将其设为null
。
This seems abstract. It might not possible. You can send code block.
You can do one thing each time fill Data Set create a new instance or you can make it null
before fill.
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