本文整理匯總了VB.NET中System.Data.StateChangeEventArgs類的典型用法代碼示例。如果您正苦於以下問題：VB.NET StateChangeEventArgs類的具體用法？VB.NET StateChangeEventArgs怎麽用？VB.NET StateChangeEventArgs使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了StateChangeEventArgs類的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: OnStateChange
' Handler for the OnStateChange event.
Private Sub OnStateChange(ByVal sender As Object, _
ByVal e As StateChangeEventArgs)
PrintEventArgs(e)
End Sub
Sub Main()
FillDataSet()
End Sub
Private Sub FillDataSet()
Dim connectionString As String = GetConnectionString()
Dim queryString As String = _
"SELECT ProductID, UnitPrice from dbo.Products;"
' Create a DataAdapter.
Using dataAdapter As New SqlDataAdapter( _
queryString, connectionString)
' Add the handlers.
AddHandler dataAdapter.SelectCommand.Connection.StateChange, _
AddressOf OnStateChange
' Create a DataSet.
Dim dataSet As New DataSet()
' Fill the DataSet, which fires several StateChange events.
dataAdapter.Fill(dataSet, 0, 5, "Table")
End Using
End Sub
Private Sub PrintEventArgs(ByVal args As StateChangeEventArgs)
Console.WriteLine("StateChangeEventArgs")
Console.WriteLine(" OriginalState= {0} CurrentState= {1}", _
args.OriginalState, args.CurrentState)
End Sub
Private Function GetConnectionString() As String
' To avoid storing the connection string in your code,
' you can retrieve it from a configuration file.
Return "Data Source=(local);Initial Catalog=Northwind;" _
& "Integrated Security=true;"
End Function