OriginalDataRestoredEventArgs Class (2007 System)

Provides data for an OriginalDataRestored event.

Namespace:  Microsoft.Office.Tools.Excel
Assembly:  Microsoft.Office.Tools.Excel.v9.0 (in Microsoft.Office.Tools.Excel.v9.0.dll)

Syntax

'Declaration
<PermissionSetAttribute(SecurityAction.Demand, Name := "FullTrust")> _
Public NotInheritable Class OriginalDataRestoredEventArgs _
    Inherits EventArgs

'Usage
Dim instance As OriginalDataRestoredEventArgs

[PermissionSetAttribute(SecurityAction.Demand, Name = "FullTrust")]
public sealed class OriginalDataRestoredEventArgs : EventArgs

[PermissionSetAttribute(SecurityAction::Demand, Name = L"FullTrust")]
public ref class OriginalDataRestoredEventArgs sealed : public EventArgs

public final class OriginalDataRestoredEventArgs extends EventArgs

Remarks

An OriginalDataRestored event is raised by a ListObject control when it restores data to its original state. The ChangeType argument provides information about the kind of restoration the ListObject control performed, and the ChangeReason provides information about the reason that this restoration was performed.

Examples

The following code example creates a DataTable and a ListObject, and binds the ListObject to the DataTable. It then creates an OriginalDataRestored event handler. To test the event, right-click a column letter above the ListObject on sheet 1 and then click Delete in the shortcut menu. The event handler replaces the column and column header data and displays a message indicating what kind of data was restored and the reason that the original data was restored.

This example is for a document-level customization.

WithEvents OriginalDataRestoredList As _
    Microsoft.Office.Tools.Excel.ListObject
Private Sub ListObject_OriginalDataRestored()
    ' Create a new DataSet and DataTable. 
    Dim ds As New DataSet()
    Dim dt As DataTable = ds.Tables.Add("Customers")
    Dim lastName As New DataColumn("LastName")
    dt.Columns.Add(lastName)
    dt.Columns.Add(New DataColumn("FirstName"))

    ' Add two new rows to the DataTable. 
    Dim dr1 As DataRow = dt.NewRow()
    dr1("LastName") = "Chan"
    dr1("FirstName") = "Gareth"
    dt.Rows.Add(dr1)
    Dim dr2 As DataRow = dt.NewRow()
    dr2("LastName") = "Nitsche"
    dr2("FirstName") = "Sonja"
    dt.Rows.Add(dr2)

    ' Create a list object.
    OriginalDataRestoredList = Me.Controls.AddListObject( _
        Me.Range("A1"), "OriginalDataRestoredList")

    ' Bind the list object to the DataTable.
    OriginalDataRestoredList.AutoSetDataBoundColumnHeaders = True
    OriginalDataRestoredList.SetDataBinding(ds, "Customers", _
        "LastName", "FirstName")
End Sub 

Private Sub List1_OriginalDataRestored(ByVal sender As Object, _
    ByVal e As Microsoft.Office.Tools.Excel.OriginalDataRestoredEventArgs) _
    Handles OriginalDataRestoredList.OriginalDataRestored
    MessageBox.Show("This data is bound to a data source and " & _
    "will be restored. This change is: " & e.ChangeType.ToString() & _
    ". The reason is: " & e.ChangeReason.ToString() + ".")
End Sub

private void ListObject_OriginalDataRestored()
{
    // Create a new DataSet and DataTable.
    DataSet ds = new DataSet();
    DataTable dt = ds.Tables.Add("Customers");
    DataColumn lastName = new DataColumn("LastName");
    dt.Columns.Add(lastName);
    dt.Columns.Add(new DataColumn("FirstName"));

    // Add two new rows to the DataTable.
    DataRow dr1 = dt.NewRow();
    dr1["LastName"] = "Chan";
    dr1["FirstName"] = "Gareth";
    dt.Rows.Add(dr1);
    DataRow dr2 = dt.NewRow();
    dr2["LastName"] = "Nitsche";
    dr2["FirstName"] = "Sonja";
    dt.Rows.Add(dr2);

    // Create a list object.
    Microsoft.Office.Tools.Excel.ListObject list1 = 
        this.Controls.AddListObject(
        this.Range["A1", missing], "list1");

    // Bind the list object to the DataTable.
    list1.AutoSetDataBoundColumnHeaders = true;
    list1.SetDataBinding(ds, "Customers", "LastName",
        "FirstName");

    // Create the event handler.
    list1.OriginalDataRestored += new 
        Microsoft.Office.Tools.Excel.
        OriginalDataRestoredEventHandler(list1_OriginalDataRestored);
}

void list1_OriginalDataRestored(object sender, 
    Microsoft.Office.Tools.Excel.OriginalDataRestoredEventArgs e)
{
    MessageBox.Show("This data is bound to a data source and " +
    "will be restored. This change is: " + e.ChangeType.ToString() +
    ". The reason is: " + e.ChangeReason.ToString() + ".");
}

Inheritance Hierarchy

System.Object
  System.EventArgs
    Microsoft.Office.Tools.Excel.OriginalDataRestoredEventArgs

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

OriginalDataRestoredEventArgs Members

Microsoft.Office.Tools.Excel Namespace