XMLNodes.BeforeDelete 事件 (2007 system)
更新：2007 年 11 月
当用户从集合中删除 Microsoft.Office.Interop.Word.XMLNode 或子代节点时，在该控件被删除之前发生。
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 XMLNodes
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 Microsoft.Office.Interop.Word.XMLNode 之前，将 Microsoft.Office.Interop.Word.XMLNode 添加到该文档之后，显示一个消息框。此示例还使用 Add 方法将新元素添加到指定范围的 XMLNodes 集合中，并以编程方式引发 AfterInsert 事件。此示例假定当前文档包含一个名为 SampleInsertNodes 的 XMLNodes 集合，该集合具有一个名为 SampleNode 的父 XMLNode。
Private Sub XMLNodeAddAndDelete()
Dim range1 As Object = Me.SampleInsertNodes(1).Range
' This will raise the AfterInsert event.
Dim node1 As Word.XMLNode = _
Me.SampleInsertNodes.Add("MemoFrom", _
Me.SampleNode.NamespaceURI, range1)
End Sub
Private Sub SampleInsertNodes_AfterInsert(ByVal sender As Object, _
ByVal e As Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs) _
Handles SampleInsertNodes.AfterInsert
If e.InUndoRedo Then
MessageBox.Show("A child element of SampleInsertNodes was " & _
"inserted as a result of an undo or redo operation.")
Else
MessageBox.Show("A child element of SampleInsertNodes " & _
"was inserted.")
End If
End Sub
Private Sub SampleInsertNodes_BeforeDelete(ByVal sender As Object, _
ByVal e As Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs) _
Handles SampleInsertNodes.BeforeDelete
If e.InUndoRedo Then
MessageBox.Show("A child element of SampleInsertNodes " & _
"is about to be deleted as a result of an undo or " & _
"redo operation.")
Else
MessageBox.Show("A child element of SampleInsertNodes " & _
"is about to be deleted.")
End If
End Sub
private void XMLNodeAddAndDelete()
{
object range1 = this.SampleInsertNodes[1].Range;
this.SampleInsertNodes.AfterInsert +=
new Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventHandler(
SampleInsertNodes_AfterInsert);
this.SampleInsertNodes.BeforeDelete +=
new Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventHandler(
SampleInsertNodes_BeforeDelete);
// This will raise the AfterInsert event.
Word.XMLNode node1 = this.SampleInsertNodes.Add("MemoFrom",
this.SampleNode.NamespaceURI, ref range1);
}
void SampleInsertNodes_AfterInsert(object sender,
Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs e)
{
if (e.InUndoRedo)
{
MessageBox.Show("A child element of SampleInsertNodes was " +
"inserted as a result of an undo or redo operation.");
}
else
{
MessageBox.Show("A child element of SampleInsertNodes " +
"was inserted.");
}
}
void SampleInsertNodes_BeforeDelete(object sender,
Microsoft.Office.Tools.Word.NodeInsertAndDeleteEventArgs e)
{
if (e.InUndoRedo)
{
MessageBox.Show("A child element of SampleInsertNodes " +
"is about to be deleted as a result of an undo or " +
"redo operation.");
}
else
{
MessageBox.Show("A child element of SampleInsertNodes " +
"is about to be deleted.");
}
}
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。