ErrorAddDataBoundRowEventHandler Delegate
Collapse the table of content
Expand the table of content

ErrorAddDataBoundRowEventHandler Delegate


Represents the method that handles an ErrorAddDataBoundRow event.

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

public delegate void ErrorAddDataBoundRowEventHandler(
	object sender,
	ErrorAddDataBoundRowEventArgs e


Type: System.Object

The source of the event.

Type: Microsoft.Office.Tools.Excel.ErrorAddDataBoundRowEventArgs

An ErrorAddDataBoundRowEventArgs that contains the event data.

When you create an ErrorAddDataBoundRowEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler method is called whenever the event occurs unless you remove the delegate.

The following code example creates a DataTable and a ListObject, and binds the ListObject to the DataTable. It then creates an ErrorAddDataBoundRow event handler. To test the event, manually add a new row to the ListObject and enter the last name "Chan" and a first name. The event handler displays a message.

This example is for a document-level customization.

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

    UniqueConstraint myUC = new UniqueConstraint( "CustConstraint", 

    // Add a new row to the DataTable.
    DataRow dr = dt.NewRow();
    dr["LastName"] = "Chan";
    dr["FirstName"] = "Gareth";

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

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

    // Create the event handler.
    list1.ErrorAddDataBoundRow += new 

void list1_ErrorAddDataBoundRow(object sender, 
    Microsoft.Office.Tools.Excel.ErrorAddDataBoundRowEventArgs e)
    MessageBox.Show("Last names must be unique.");
Return to top
© 2015 Microsoft