使用EPPlus复制/克隆Excel形状？

Question

是否可以使用EPPlus库在Excel工作表中创建形状的复制/克隆？

我知道我能得到一个现有对象与

var shapeExisting = ws.Drawings["ShapeName"]; 

（ws作为工作表对象）

与

var shapeNew = ws.Drawings.AddShape("NewName", eShapeStyle.RtTriangle); 

但是一个创造新的形状，我不能找到一种方法克隆shapeExisting。

Answer 1

好像没有内置的功能，所以，直到我找到一个更好的解决办法，我添加了下面的方法来EPPlus\Drawings\ExcelDrawings.cs

public ExcelShape CloneShape(string SourceName, string TargetName) 
{ 
    if (_drawingNames.ContainsKey(TargetName.ToLower())) 
    { 
     throw new Exception("Target name already exists in the drawings collection"); 
    } 

    if (!_drawingNames.ContainsKey(SourceName.ToLower())) 
    { 
     throw new Exception("Source shape does not exist in the drawings collection"); 
    } 

    ExcelShape shape = new ExcelShape(this, this._drawingsXml, 
           (ExcelShape) this[SourceName]); 
    shape.Name = TargetName; 
    _drawings.Add(shape); 
    _drawingNames.Add(TargetName.ToLower(), _drawings.Count - 1); 
    return shape; 
} 

而且这种构造在ExcelShape.cs：

internal ExcelShape(ExcelDrawings drawings, XmlDocument DrawingsXml, ExcelShape shapeSource) : 
      base(drawings, shapeSource._topNode.Clone(), "xdr:sp/xdr:nvSpPr/xdr:cNvPr/@name") 

{ 
    this.init(); 
    XmlNode colNode = DrawingsXml.SelectSingleNode("//xdr:wsDr", NameSpaceManager);    
    colNode.AppendChild(this._topNode); 
}