DataRow.HasVersion Method
Gets a value that indicates whether a specified version exists.
Namespace: System.Data
Assembly: System.Data (in System.Data.dll)
Parameters
- version
- Type: System.Data.DataRowVersion
One of the DataRowVersion values that specifies the row version.
The following example uses the HasVersion method to determine whether the current value of a column and the proposed value are the same. If so, the edit is canceled. Otherwise, the AcceptChanges method is called to end the edit.
Private Sub CheckVersionBeforeAccept() ' Assuming the DataGrid is bound to a DataTable. Dim table As DataTable = CType(DataGrid1.DataSource, DataTable) Dim row As DataRow = table.Rows(DataGrid1.CurrentCell.RowNumber) row.BeginEdit row(1) = Edit1.Text If row.HasVersion(datarowversion.Proposed) Then If row(1, DataRowVersion.Current) Is _ row(1, DataRowversion.Proposed) Then Console.WriteLine("The original and the proposed are the same") row.CancelEdit Exit Sub Else row.AcceptChanges End If Else Console.WriteLine("No new values proposed") End If End Sub
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
