asp.net实例代码之更新访问数据
本文导语: asp.net更新访问数据的例子，代码如下： 代码示例: Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs) If Not IsPostBack Then Dim DBConn as OleDbConnection Dim DBCommand As OleDbDataAdapter Dim DSPageData ...
asp.net更新访问数据的例子，代码如下：
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
If Not IsPostBack Then
Dim DBConn as OleDbConnection
Dim DBCommand As OleDbDataAdapter
Dim DSPageData as New DataSet
DBConn = New OleDbConnection( _
"PROVIDER=Microsoft.Jet.OLEDB.4.0;" _
& "DATA SOURCE=" _
& Server.MapPath("EmployeeDatabase.mdb;"))
DBCommand = New OleDbDataAdapter _
("Select LastName & ', ' & FirstName " _
& "as EmpName, ID " _
& "From Employee " _
& "Order By LastName, FirstName", DBConn)
DBCommand.Fill(DSPageData, _
"Employee")
ddlEmps.DataSource = _
DSPageData.Tables("Employee").DefaultView
ddlEmps.DataBind()
End If
End Sub
Sub SubmitBtn_Click(Sender As Object, E As EventArgs)
Dim DBConn as OleDbConnection
Dim DBUpdate As New OleDbCommand
DBConn = New OleDbConnection( _
"PROVIDER=Microsoft.Jet.OLEDB.4.0;" _
& "DATA SOURCE=" _
& Server.MapPath("EmployeeDatabase.mdb;"))
DBUpdate.CommandText = "Update Employee Set " _
& "FirstName = '" & txtFirstName.Text & "' Where " _
& "ID = " & ddlEmps.SelectedItem.Value
DBUpdate.Connection = DBConn
DBUpdate.Connection.Open
DBUpdate.ExecuteNonQuery()
End Sub
更新访问数据-www.
选择一个员工信息进行更新：
New First Name:
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