StreamHelper
public static MemoryStream CreateMemoryStreamFromBytes(byte[] inputData) { if (inputData == null || inputData.Length == 0) { return null; } MemoryStream result = new MemoryStream(inputData, false); return result; } /// <summary> /// Read the data based on byte array from a specific file which path is from input. /// </summary> /// <param name="localFilePath">File path you want read.</param> /// <returns>The file data based on byte array of input file. If input file path not exists, return null.</returns> public static byte[] ReadBytesFromFile(string localFilePath) { if (StringHelper.IsNullOrEmpty(localFilePath) || !File.Exists(localFilePath)) { return null; } FileStream fs = new FileStream(localFilePath, FileMode.Open, FileAccess.Read, FileShare.Read); byte[] result = new byte[fs.Length]; int bufferSize = Convert.ToInt32((long)65536 > fs.Length ? fs.Length : (long)65536); int offset = 0; int readCount = 0; using (fs as IDisposable) { while ((readCount = fs.Read(result, offset, bufferSize)) > 0) { offset += readCount; bufferSize = bufferSize > result.Length - offset ? result.Length - offset : bufferSize; } } return result; }
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