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DataRow.HasVersion(DataRowVersion) Method
Definition
- Namespace:
- System.Data
- Assemblies:
- netstandard.dll, System.Data.Common.dll
- Assembly:
- System.Data.Common.dll
- Assembly:
- System.Data.dll
- Assembly:
- netstandard.dll
- Source:
- DataRow.cs
- Source:
- DataRow.cs
- Source:
- DataRow.cs
- Source:
- DataRow.cs
- Source:
- DataRow.cs
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets a value that indicates whether a specified version exists.
public:
bool HasVersion(System::Data::DataRowVersion version);public bool HasVersion(System.Data.DataRowVersion version);member this.HasVersion : System.Data.DataRowVersion -> boolPublic Function HasVersion (version As DataRowVersion) As BooleanParameters
- version
- DataRowVersion
One of the DataRowVersion values that specifies the row version.
Returns
true if the version exists; otherwise, false.
Examples
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
Remarks
See the BeginEdit method for more information.
Applies to
See also
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