带有子表单值的更新表

Question

对坏的英语语法表示歉意：这是一本图书销售数据库，我在更新“库存”字段时出现了一些问题 - 书籍（book_id，价格，库存）表格 - “销售”表单中的值是“销售”形式中出售多少种图书（book_id，数量）的子形式。 请帮忙，谢谢

Answer 1

更新时间：

如果要编辑的记录，你会做这样的事情：

'this will create the recordset variable and a string variable 
Dim myR As Recordset 
Dim strSQL as String  

'to find the record you want to edit use this and then set your recordset to this query 
strSQL = "Select * From Books Where book_id = '" & Me.Book_I_Want_To_Edit_Field & "'" 

'make the table strSQL your table to work with 
Set myR = CurrentDb.OpenRecordset(strSQL, dbOpenDynaset) 


'you can set your subform fields or controls here 
Me.Sales_Details.Form.Field_in_subform_to_edit = MyR![Inventory] 

'you need this to edit it 
myR.Edit 

'Modify everything here with vba 

'then update it 
myR.Update 

'clear the variable 
Set myR = Nothing 

让我知道如果这样的事情会帮助或者如果您需要我来更新它。