XMLNode.ContextEnter 事件

当光标从 XMLNode 节点的上下文外的区域移入该节点或它的一个子节点内时发生此事件。

命名空间:  Microsoft.Office.Tools.Word
程序集:  Microsoft.Office.Tools.Word(在 Microsoft.Office.Tools.Word.dll 中)

语法

声明
Event ContextEnter As ContextChangeEventHandler
event ContextChangeEventHandler ContextEnter

备注

ContextEnter 事件与 Select 事件不同。 ContextEnter 事件只在上下文发生更改时才会发生。 有关详细信息,请参阅XMLNode 控件

示例

下面的代码示例演示 SelectDeselect、ContextEnter 和 ContextLeave 事件的事件处理程序。 引发 SelectDeselect 事件时,事件处理程序会根据具体事件为所选内容的边框添加双线或移除双线。 引发 ContextEnter 和 ContextLeave 事件时,事件处理程序会显示消息,指出最新选择的节点和之前选择的节点的名称。 此示例假定当前文档包含一个名为 CustomerNode 的 XMLNode

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 + "'.");
}

.NET Framework 安全性

请参见

参考

XMLNode 接口

Microsoft.Office.Tools.Word 命名空间