本文整理汇总了VB.NET中System.Data.DataSet.HasChanges方法的典型用法代码示例。如果您正苦于以下问题：VB.NET DataSet.HasChanges方法的具体用法？VB.NET DataSet.HasChanges怎么用？VB.NET DataSet.HasChanges使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Data.DataSet的用法示例。
在下文中一共展示了DataSet.HasChanges方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
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