Delegado ContextChangeEventHandler
Represents the method that will handle the Select, Deselect, ContextEnter and ContextLeave events of an XMLNode object and the ContextEnter, ContextLeave, Select, and Deselect events of an XMLNodes object.
Namespace: Microsoft.Office.Tools.Word
Assembly: Microsoft.Office.Tools.Word (em Microsoft.Office.Tools.Word.dll)
Sintaxe
'Declaração
Public Delegate Sub ContextChangeEventHandler ( _
sender As Object, _
e As ContextChangeEventArgs _
)
public delegate void ContextChangeEventHandler(
Object sender,
ContextChangeEventArgs e
)
Parâmetros
- sender
Tipo: System.Object
A origem do evento.
- e
Tipo: Microsoft.Office.Tools.Word.ContextChangeEventArgs
A ContextChangeEventArgs que contém os dados do evento.
Comentários
Quando você cria um ContextChangeEventHandler representante, você identifica o método que manipulará o evento.Para associar o evento com o manipulador de eventos, adicione uma instância do delegate ao evento.O manipulador de eventos é chamado sempre que o evento ocorre, até que você remova o delegado.Para obter mais informações sobre delegados, consulte Delegados e eventos.
Exemplos
O exemplo de código a seguir demonstra os manipuladores de eventos para o XMLNode.Select, XMLNode.Deselect, XMLNode.ContextEnter, e XMLNode.ContextLeave eventos.Quando o XMLNode.Select e XMLNode.Deselect eventos são elevados, os manipuladores de eventos adicionar linhas duplas as bordas da seleção ou remover as linhas duplas, dependendo do evento.Quando o XMLNode.ContextEnter e XMLNode.ContextLeave eventos são elevados, os manipuladores de eventos exibem mensagens que estabelecem os nomes do nó selecionado recentemente e o nó selecionado anteriormente.Este exemplo assume que o documento atual contém uma XMLNode chamado CustomerNode.
Private Sub CustomerNode_Select(ByVal sender As Object, _
ByVal e As Microsoft.Office.Tools.Word.ContextChangeEventArgs) _
Handles CustomerNode.Select
e.Selection.Borders.OutsideLineStyle = _
Word.WdLineStyle.wdLineStyleDouble
End Sub
Private Sub CustomerNode_Deselect(ByVal sender As Object, _
ByVal e As Microsoft.Office.Tools.Word.ContextChangeEventArgs) _
Handles CustomerNode.Deselect
e.Selection.Borders.OutsideLineStyle = _
Word.WdLineStyle.wdLineStyleNone
End Sub
Private Sub CustomerNode_ContextEnter(ByVal sender As Object, _
ByVal e As Microsoft.Office.Tools.Word.ContextChangeEventArgs) _
Handles CustomerNode.ContextEnter
MsgBox("You entered the node '" & e.NewXMLNode.BaseName & "'.")
End Sub
Private Sub CustomerNode_ContextLeave(ByVal sender As Object, _
ByVal e As Microsoft.Office.Tools.Word.ContextChangeEventArgs) _
Handles CustomerNode.ContextLeave
MsgBox("You left the node '" & e.OldXMLNode.BaseName & "'.")
End Sub
private void XMLNodeSelections()
{
this.CustomerNode.ContextEnter +=
new Microsoft.Office.Tools.Word.ContextChangeEventHandler(
CustomerNode_ContextEnter);
this.CustomerNode.ContextLeave +=
new Microsoft.Office.Tools.Word.ContextChangeEventHandler(
CustomerNode_ContextLeave);
this.CustomerNode.Select +=
new Microsoft.Office.Tools.Word.ContextChangeEventHandler(
CustomerNode_Select);
this.CustomerNode.Deselect +=
new Microsoft.Office.Tools.Word.ContextChangeEventHandler(
CustomerNode_Deselect);
}
void CustomerNode_Select(object sender,
Microsoft.Office.Tools.Word.ContextChangeEventArgs e)
{
e.Selection.Borders.OutsideLineStyle =
Word.WdLineStyle.wdLineStyleDouble;
}
void CustomerNode_Deselect(object sender,
Microsoft.Office.Tools.Word.ContextChangeEventArgs e)
{
e.Selection.Borders.OutsideLineStyle =
Word.WdLineStyle.wdLineStyleNone;
}
void CustomerNode_ContextEnter(object sender,
Microsoft.Office.Tools.Word.ContextChangeEventArgs e)
{
MessageBox.Show("You entered the node '" +
e.NewXMLNode.BaseName + "'.");
}
void CustomerNode_ContextLeave(object sender,
Microsoft.Office.Tools.Word.ContextChangeEventArgs e)
{
MessageBox.Show("You left the node '" +
e.OldXMLNode.BaseName + "'.");
}