本文整理匯總了VB.NET中System.Data.DataRowView.RowVersion屬性的典型用法代碼示例。如果您正苦於以下問題：VB.NET DataRowView.RowVersion屬性的具體用法？VB.NET DataRowView.RowVersion怎麽用？VB.NET DataRowView.RowVersion使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類System.Data.DataRowView的用法示例。
在下文中一共展示了DataRowView.RowVersion屬性的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: DemonstrateRowVersion
Private Sub DemonstrateRowVersion()
Dim i As Integer
' Create a DataTable with one column.
Dim table As New DataTable("Table")
Dim column As New DataColumn("Column")
table.Columns.Add(column)
' Add ten rows.
Dim row As DataRow
For i = 0 To 9
row = table.NewRow()
row("Column") = "item " + i.ToString()
table.Rows.Add(row)
Next i
table.AcceptChanges()
' Create a DataView with the table.
Dim view As New DataView(table)
' Change one row's value:
table.Rows(1)("Column") = "Hello"
' Add one row:
row = table.NewRow()
row("Column") = "World"
table.Rows.Add(row)
' Set the RowStateFilter to display only added and modified rows.
view.RowStateFilter = _
DataViewRowState.Added Or DataViewRowState.ModifiedCurrent
' Print those rows. Output includes "Hello" and "World".
PrintView(view, "ModifiedCurrent and Added")
' Set filter to display only originals of modified rows.
view.RowStateFilter = DataViewRowState.ModifiedOriginal
PrintView(view, "ModifiedOriginal")
' Delete three rows.
table.Rows(1).Delete()
table.Rows(2).Delete()
table.Rows(3).Delete()
' Set the RowStateFilter to display only deleted rows.
view.RowStateFilter = DataViewRowState.Deleted
PrintView(view, "Deleted")
' Set filter to display only current rows.
view.RowStateFilter = DataViewRowState.CurrentRows
PrintView(view, "Current")
' Set filter to display only unchanged rows.
view.RowStateFilter = DataViewRowState.Unchanged
PrintView(view, "Unchanged")
' Set filter to display only original rows.
' Current values of unmodified rows are also returned.
view.RowStateFilter = DataViewRowState.OriginalRows
PrintView(view, "OriginalRows")
End Sub
Private Sub PrintView(ByVal view As DataView, ByVal label As String)
Console.WriteLine(ControlChars.Cr + label)
Dim i As Integer
For i = 0 To view.Count - 1
Console.WriteLine(view(i)("Column"))
Console.WriteLine("DataRowView.RowVersion: {0}", _
view(i).RowVersion)
Next i
End Sub