XMLNode.BeforeDelete 事件 (2007 system)

更新：2007 年 11 月

当用户从文档中删除 XMLNode 控件时，在删除控件之前发生。

命名空间：  Microsoft.Office.Tools.Word
程序集：  Microsoft.Office.Tools.Word.v9.0（在 Microsoft.Office.Tools.Word.v9.0.dll 中）

语法

声明
Public Event BeforeDelete As NodeInsertAndDeleteEventHandler
用法
Dim instance As XMLNode
Dim handler As NodeInsertAndDeleteEventHandler

AddHandler instance.BeforeDelete, handler

public event NodeInsertAndDeleteEventHandler BeforeDelete

备注

如果 InUndoRedo 参数为 true，则不应更改文档中的 XML。

示例

下面的代码示例演示 AfterInsert 和 BeforeDelete 事件的事件处理程序。此代码在从该文档删除 XMLNode 之前，将 XMLNode 添加到该文档之后，显示一个消息框。此示例还使用 RemoveChild 方法删除节点，并以编程方式引发 BeforeDelete 事件。此示例假定当前文档包含一个名为 CustomerNode 的 XMLNode，它包含一个名为 CustomerDateNode 的子节点。

Private Sub XMLNodeInsertAndDelete()
    Me.CustomerNode.RemoveChild(Me.CustomerDateNode.InnerObject)
End Sub

Private Sub XMLNode_BeforeDelete(ByVal sender As Object, _
    ByVal e As Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs) _
    Handles CustomerDateNode.BeforeDelete

    Dim tempNode As Microsoft.Office.Tools.Word.XMLNode = _
        CType(sender, Microsoft.Office.Tools.Word.XMLNode)
    If e.InUndoRedo Then
        MsgBox(tempNode.BaseName & " element is about to be " & _
            "deleted as a result of an undo or redo operation.")
    Else
        MsgBox(tempNode.BaseName & " element is about to be " & _
            "deleted.")
    End If
End Sub

Private Sub XMLNode_AfterInsert(ByVal sender As Object, _
    ByVal e As Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs) _
    Handles CustomerDateNode.AfterInsert

    Dim tempNode As Microsoft.Office.Tools.Word.XMLNode = _
        CType(sender, Microsoft.Office.Tools.Word.XMLNode)

    If e.InUndoRedo Then
        MsgBox(tempNode.BaseName & " element was " & _
            "inserted as a result of an undo or redo operation.")
    Else
        MsgBox(tempNode.BaseName & " element was inserted.")
    End If
End Sub

private void XMLNodeInsertAndDelete()
{
    this.CustomerDateNode.AfterInsert +=
        new Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventHandler(
        XMLNode_AfterInsert);

    this.CustomerDateNode.BeforeDelete +=
        new Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventHandler(
        XMLNode_BeforeDelete);

    this.CustomerNode.RemoveChild(this.CustomerDateNode.InnerObject);
}

void XMLNode_BeforeDelete(object sender, 
    Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs e)
{
    Microsoft.Office.Tools.Word.XMLNode tempNode =
        (Microsoft.Office.Tools.Word.XMLNode)sender;

    if (e.InUndoRedo)
    {
        MessageBox.Show(tempNode.BaseName + " element is about to be " +
            "deleted as a result of an undo or redo operation.");
    }
    else
    {
        MessageBox.Show(tempNode.BaseName + " element is about to be " +
            "deleted.");
    }
}


void XMLNode_AfterInsert(object sender,
    Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs e)
{
    Microsoft.Office.Tools.Word.XMLNode tempNode =
        (Microsoft.Office.Tools.Word.XMLNode)sender;

    if (e.InUndoRedo)
    {
        MessageBox.Show(tempNode.BaseName + " element was " +
            "inserted as a result of an undo or redo operation.");
    }
    else
    {
        MessageBox.Show(tempNode.BaseName + " element was inserted.");
    }
}

权限

• 对直接调用方的完全信任。此成员不能由部分信任的代码使用。有关更多信息，请参见通过部分受信任的代码使用库。

另请参见

参考

XMLNode 类

XMLNode 成员

Microsoft.Office.Tools.Word 命名空间