DataRowState Enumeration
Gets the state of a DataRow object.
This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.
Namespace: System.DataAssembly: System.Data (in System.Data.dll)
| Member name | Description | |
|---|---|---|
![]() ![]() | Detached | The row has been created but is not part of any DataRowCollection. A DataRow is in this state immediately after it has been created and before it is added to a collection, or if it has been removed from a collection. |
![]() ![]() | Unchanged | The row has not changed since AcceptChanges was last called. |
![]() ![]() | Added | The row has been added to a DataRowCollection, and AcceptChanges has not been called. |
![]() ![]() | Deleted | The row was deleted using the Delete method of the DataRow. |
![]() ![]() | Modified | The row has been modified and AcceptChanges has not been called. |
The following example first creates a new DataTable with one column, then creates a single DataRow. As the DataRow is created, added, modified, and deleted, its RowState is printed.
Private Sub DemonstrateRowState() 'Run a function to create a DataTable with one column. Dim dataTable As DataTable = MakeTable() Dim dataRow As DataRow ' Create a new DataRow. dataRow = dataTable.NewRow() ' Detached row. Console.WriteLine(String.Format("New Row {0}", dataRow.RowState)) dataTable.Rows.Add(dataRow) ' New row. Console.WriteLine(String.Format("AddRow {0}", dataRow.RowState)) dataTable.AcceptChanges() ' Unchanged row. Console.WriteLine(String.Format("AcceptChanges {0}", dataRow.RowState)) dataRow("FirstName") = "Scott" ' Modified row. Console.WriteLine(String.Format("Modified {0}", dataRow.RowState)) dataRow.Delete() ' Deleted row. Console.WriteLine(String.Format("Deleted {0}", dataRow.RowState)) End Sub Private Function MakeTable() As DataTable ' Make a simple table with one column. Dim dt As New DataTable("dataTable") Dim firstName As New DataColumn("FirstName", _ Type.GetType("System.String")) dt.Columns.Add(firstName) Return dt End Function
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
