workin groups是什么意思(Aspose.Words使用教程之如何重命名合并字段)

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一个示例展示如何创建自己的合并字段类,代表一个在微软的Word文档中允许您获取或设置它合并字段的名称Example如何在一个文档里重命名字段C#using System; using System.Text; using System.Text.RegularExpressions; using Aspose.Words; using Aspose.Words.Fields; namespace Examples { /// /// Shows how to rename merge fields in a Word document. /// public class ExRenameMergeFields : ExBase { /// /// Finds all merge fields in a Word document and changes their names. /// public void RenameMergeFields() { // Specify your document name here. Document doc = new Document(MyDir + "RenameMergeFields.doc"); // Select all field start nodes so we can find the merge fields. NodeCollection fieldStarts = doc.GetChildNodes(NodeType.FieldStart, true); foreach (FieldStart fieldStart in fieldStarts) { if (fieldStart.FieldType.Equals(FieldType.FieldMergeField)) { MergeField mergeField = new MergeField(fieldStart); mergeField.Name = mergeField.Name + "_Renamed"; } } doc.Save(MyDir + "RenameMergeFields Out.doc"); } } /// /// Represents a facade object for a merge field in a Microsoft Word document. /// internal class MergeField { internal MergeField(FieldStart fieldStart) { if (fieldStart.Equals(null)) throw new ArgumentNullException("fieldStart"); if (!fieldStart.FieldType.Equals(FieldType.FieldMergeField)) throw new ArgumentException("Field start type must be FieldMergeField."); mFieldStart = fieldStart; // Find the field separator node. mFieldSeparator = fieldStart.GetField().Separator; if (mFieldSeparator == null) throw new InvalidOperationException("Cannot find field separator."); mFieldEnd = fieldStart.GetField().End; } /// /// Gets or sets the name of the merge field. /// internal string Name { get { return ((FieldStart)mFieldStart).GetField().Result.Replace("«", "").Replace("»", ""); } set { // Merge field name is stored in the field result which is a Run // node between field separator and field end. Run fieldResult = (Run)mFieldSeparator.NextSibling; fieldResult.Text = string.Format("«{0}»", value); // But sometimes the field result can consist of more than one run, delete these runs. RemoveSameParent(fieldResult.NextSibling, mFieldEnd); UpdateFieldCode(value); } } private void UpdateFieldCode(string fieldName) { // Field code is stored in a Run node between field start and field separator. Run fieldCode = (Run)mFieldStart.NextSibling; Match match = gRegex.Match(((FieldStart)mFieldStart).GetField().GetFieldCode()); string newFieldCode = string.Format(" {0}{1} ", match.Groups["start"].Value, fieldName); fieldCode.Text = newFieldCode; // But sometimes the field code can consist of more than one run, delete these runs. RemoveSameParent(fieldCode.NextSibling, mFieldSeparator); } /// /// Removes nodes from start up to but not including the end node. /// Start and end are assumed to have the same parent. /// private static void RemoveSameParent(Node startNode, Node endNode) { if ((endNode != null) && (startNode.ParentNode != endNode.ParentNode)) throw new ArgumentException("Start and end nodes are expected to have the same parent."); Node curChild = startNode; while ((curChild != null) && (curChild != endNode)) { Node nextChild = curChild.NextSibling; curChild.Remove(); curChild = nextChild; } } private readonly Node mFieldStart; private readonly Node mFieldSeparator; private readonly Node mFieldEnd; private static readonly Regex gRegex = new Regex(@"\s*(?MERGEFIELD\s|)(\s|)(?\S+)\s+"); } }。

Visual BasicImports Microsoft.VisualBasic Imports System Imports System.Text Imports System.Text.RegularExpressions Imports Aspose.Words Imports Aspose.Words.Fields Namespace Examples Shows how to rename merge fields in a Word document. _ Public Class ExRenameMergeFields Inherits ExBase Finds all merge fields in a Word document and changes their names. _ Public Sub RenameMergeFields() Specify your document name here. Dim doc As New Document(MyDir & "RenameMergeFields.doc") Select all field start nodes so we can find the merge fields. Dim fieldStarts As NodeCollection = doc.GetChildNodes(NodeType.FieldStart, True) For Each fieldStart As FieldStart In fieldStarts If fieldStart.FieldType.Equals(FieldType.FieldMergeField) Then Dim mergeField As New MergeField(fieldStart) mergeField.Name = mergeField.Name & "_Renamed" End If Next fieldStart doc.Save(MyDir & "RenameMergeFields Out.doc") End Sub End Class Represents a facade object for a merge field in a Microsoft Word document. Friend Class MergeField Friend Sub New(fieldStart As FieldStart) If fieldStart.Equals(Nothing) Then Throw New ArgumentNullException("fieldStart") End If If Not fieldStart.FieldType.Equals(FieldType.FieldMergeField) Then Throw New ArgumentException("Field start type must be FieldMergeField.") End If mFieldStart = fieldStart Find the field separator node. mFieldSeparator = fieldStart.GetField().Separator If mFieldSeparator Is Nothing Then Throw New InvalidOperationException("Cannot find field separator.") End If mFieldEnd = fieldStart.GetField().End End Sub Gets or sets the name of the merge field. Friend Property Name() As String Get Return DirectCast(mFieldStart, FieldStart).GetField().Result.Replace("«", "").Replace("»", "") End Get Set Merge field name is stored in the field result which is a Run node between field separator and field end. Dim fieldResult As Run = DirectCast(mFieldSeparator.NextSibling, Run) fieldResult.Text = String.Format("«{0}»", value) But sometimes the field result can consist of more than one run, delete these runs. RemoveSameParent(fieldResult.NextSibling, mFieldEnd) UpdateFieldCode(value) End Set End Property Private Sub UpdateFieldCode(fieldName As String) Field code is stored in a Run node between field start and field separator. Dim fieldCode As Run = DirectCast(mFieldStart.NextSibling, Run) Dim match As Match = gRegex.Match(DirectCast(mFieldStart, FieldStart).GetField().GetFieldCode()) Dim newFieldCode As String = String.Format(" {0}{1} ", match.Groups("start").Value, fieldName) fieldCode.Text = newFieldCode But sometimes the field code can consist of more than one run, delete these runs. RemoveSameParent(fieldCode.NextSibling, mFieldSeparator) End Sub Removes nodes from start up to but not including the end node. Start and end are assumed to have the same parent. Private Shared Sub RemoveSameParent(startNode As Node, endNode As Node) If (endNode IsNot Nothing) AndAlso (startNode.ParentNode <> endNode.ParentNode) Then Throw New ArgumentException("Start and end nodes are expected to have the same parent.") End If Dim curChild As Node = startNode While (curChild IsNot Nothing) AndAlso (curChild <> endNode) Dim nextChild As Node = curChild.NextSibling curChild.Remove() curChild = nextChild End While End Sub Private ReadOnly mFieldStart As Node Private ReadOnly mFieldSeparator As Node Private ReadOnly mFieldEnd As Node Private Shared ReadOnly gRegex As New Regex("\s*(?MERGEFIELD\s|)(\s|)(?\S+)\s+") End Class End Namespace

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