本文整理匯總了VB.NET中System.Data.DataSet.HasChanges方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET DataSet.HasChanges方法的具體用法？VB.NET DataSet.HasChanges怎麽用？VB.NET DataSet.HasChanges使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Data.DataSet的用法示例。
在下文中一共展示了DataSet.HasChanges方法的2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: UpdateDataSet
Private Sub UpdateDataSet(ByVal dataSet As DataSet)
' Check for changes with the HasChanges method first.
If Not dataSet.HasChanges() Then
Exit Sub
End If
' Create temporary DataSet variable.
' GetChanges for modified rows only.
Dim tempDataSet As DataSet = _
dataSet.GetChanges(DataRowState.Modified)
' Check the DataSet for errors.
If tempDataSet.HasErrors Then
' Insert code to resolve errors.
End If
' After fixing errors, update the data source with
' the DataAdapter used to create the DataSet.
myOleDbDataAdapter.Update(tempDataSet)
End Sub示例2: UpdateDataSet
Private Sub UpdateDataSet(ByVal dataSet As DataSet)
' Check for changes with the HasChanges method first.
If Not dataSet.HasChanges(DataRowState.Modified) Then
Exit Sub
End If
' Create temporary DataSet variable and
' GetChanges for modified rows only.
Dim tempDataSet As DataSet = _
dataSet.GetChanges(DataRowState.Modified)
' Check the DataSet for errors.
If tempDataSet.HasErrors Then
' Insert code to resolve errors.
End If
' After fixing errors, update the data source with
' the DataAdapter used to create the DataSet.
adapter.Update(tempDataSet)
End Sub