的Visual Basic 2010数据集 [英] Visual Basic 2010 DataSet

问题描述

我使用Visual Studio 2010和我的工作Windows应用程序的形式。我挣扎与我们的数据库。我可以连接并在网格视图中检索数据。

I'm using Visual Studio 2010 and I'm working on a windows application form. I'm struggling with our database. I can connect and retrieve Data in the Grid View.

但我不想要显示的记录 - 我想提出一个具体的行列中一个变量（总之，我想与它的工作）。 我的数据集叫 ProductionDataSet 。该表格叫员工并有四列名为员工 ，将First_Name ，姓氏和状态。

But I don't want to display the records - I want to put a specific row column in a variable (in short I want to work with it). My DataSet is called ProductionDataSet. The Table is called Employee and has four columns called Employee, First_Name, Last_Name and Status.

我怎么现在店里可以说，在变量x 4列和行5项？

How do I now store lets say the entry in column 4 and row 5 in the variable x?

推荐答案

在您连接到你需要把数据放入一个数据表，然后操纵行项目DATABSE

After you connect to the databse you need to put the data into a DataTable and then manipulate the Row Items

' DataSet/DataTable variables
Dim ProductionDataSet As New DataSet
Dim dtProductionDataTable As New DataTable
Dim daProductionDataAdapter As New OdbcDataAdapter

' Variables for retrieved data
Dim sEmployee As String = ""
Dim sFirstName As String = ""
Dim sSurname As String = ""
Dim sStatus As String = ""

'Connect to the database 
''

'Fill DataSet and assign to DataTable
 daProductionDataAdapter.Fill(ProductionDataSet , "ProductionDataSet")
 dtProductionDataTable = ProductionDataSet.Tables(0)

'Extract data from DataTable
' Rows is the row of the datatable, item is the column

 sEmployee  = dtProductionDataTable.Rows(0).Item(0).ToString
 sFirstName  = dtProductionDataTable.Rows(0).Item(1).ToString
 sSurname  = dtProductionDataTable.Rows(0).Item(2).ToString
 sStatus  = dtProductionDataTable.Rows(0).Item(3).ToString

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