ImageSaveOptions.StreamProvider

ImageSaveOptions.StreamProvider property

Gets or sets the IStreamProvider for exporting objects.

public IStreamProvider StreamProvider { get; set; }

Remarks

If saving as Tiff, this property is ignored. Otherwise, if more than one image should be saving, we will write other images by this. For advanced usage, please use WorkbookRender or SheetRender.

Examples

using System;
using System.IO;
using Aspose.Cells;

namespace AsposeCellsExamples
{
    public class CustomStreamProvider : IStreamProvider
    {
        private int m_count = 0;

        public void InitStream(StreamProviderOptions options)
        {
            m_count++;
        }

        public Stream GetStream(StreamProviderOptions options)
        {
            return new FileStream(options.DefaultPath + m_count + ".png", FileMode.Create);
        }

        public void CloseStream(StreamProviderOptions options)
        {
            // Implementation when no stream is provided
        }

        public void CloseStream(StreamProviderOptions options, Stream stream)
        {
            stream.Dispose();
        }
    }

    public class ImageSaveOptionsPropertyStreamProviderDemo
    {
        public static void Run()
        {
            // Create workbook
            Workbook workbook = new Workbook();
            Worksheet worksheet = workbook.Worksheets[0];
            worksheet.Cells["A1"].PutValue("Test StreamProvider");

            // Set save options with custom stream provider
            ImageSaveOptions saveOptions = new ImageSaveOptions(SaveFormat.Png);
            saveOptions.StreamProvider = new CustomStreamProvider();

            // Save with stream provider
            workbook.Save("output.png", saveOptions);
        }
    }
}

See Also