C#替换Word文本框中的内容（不使用Bookmark）

主要参考StoryRanges，NextStoryRange，WdStoryType，Range这几个类。

Replace text in Word textbox objects using VSTO and C#

01	/// <summary>

02	/// 查找并替换文本

03	/// </summary>

04	/// <param name="wordApp"></param>

05	/// <param name="oldStr"></param>

06	/// <param name="newStr"></param>

07	public void SearchReplace(string oldStr, string newStr)

08

09	#region 文字区域

10	object replaceAll = WdReplace.wdReplaceAll;

11

12	wordApp.Selection.Find.ClearFormatting();

13	wordApp.Selection.Find.Text = oldStr;

14

15	wordApp.Selection.Find.Replacement.ClearFormatting();

16	wordApp.Selection.Find.Replacement.Text = newStr;

17

18	wordApp.Selection.Find.Execute(

19	ref missing, ref missing, ref missing, ref missing, ref missing,

20	ref missing, ref missing, ref missing, ref missing, ref missing,

21	ref replaceAll, ref missing, ref missing, ref missing, ref missing);

22	#endregion

23

24	#region 文本框

25	StoryRanges sr = wordDoc.StoryRanges;

26	foreach (Range r in sr)

27

28	Range r1 = r;

29	if (WdStoryType.wdTextFrameStory == r.StoryType)

30

31

do

32

33	r1.Find.ClearFormatting();

34	r1.Find.Text = oldStr;

35

36	r1.Find.Replacement.ClearFormatting();

37	r1.Find.Replacement.Text = newStr;

38

39	r1.Find.Execute(

40	ref missing, ref missing, ref missing, ref missing, ref missing,

41	ref missing, ref missing, ref missing, ref missing, ref missing,

42	ref replaceAll, ref missing, ref missing, ref missing, ref missing);

43

44	r1 = r1.NextStoryRange;

45	while (r1 != null);

46

47

48	#endregion

49

}