使用 CustomImplementationFactory 创建内存流的自定义实现

可能的使用场景

Aspose.Cells 提供了一个名为 APICellsHelper.CustomImplementationFactory这使用户能够提供自定义实现，例如使用可回收内存实现而不是默认的 MemoryStream。

使用 CustomImplementationFactory 创建内存流的自定义实现

下面的示例代码说明了如何使用CellsHelper.CustomImplementationFactory在你的程序中。有时，系统中有足够的内存，但内存不连续。 Memory Stream 对象使用连续内存，但您可以提供 Memory Stream 的实现，使其使用非连续内存，

示例代码

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET

//Implement CustomImplementationFactory - CELLSNET-45461
public class MM : CustomImplementationFactory
{
 
    RecyclableMemoryStreamManager manager = new RecyclableMemoryStreamManager();
 
    public override MemoryStream CreateMemoryStream()
    {
 
        return manager.GetStream("MM");
    }
 
    public override MemoryStream CreateMemoryStream(int capacity)
    {
        return manager.GetStream("MM", capacity);
    }
}
 
//----------------------------------------
//----------------------------------------
 
//Assign implementation instance of CustomImplementationFactory
CellsHelper.CustomImplementationFactory = new MM();
 
//Light cells data handler implementation
LightCellsDataHandlerVisitCells v = new LightCellsDataHandlerVisitCells();
 
//Create workbook object
Workbook wb = new Workbook(sourceDir, new LoadOptions() { MemorySetting = MemorySetting.MemoryPreference, LightCellsDataHandler = v });
 
//Print miscellaneous data
Console.WriteLine("Total sheets: " + wb.Worksheets.Count + ", cells: " + v.CellCount + ", strings: " + v.StringCount + ", formulas: " + v.FormulaCount);