Sharepoint 将项目添加到图片库中

Question

我想使用 c# 将项目添加到图片库中。这就是我向普通项目添加字段的方式：

var item = list.Items.Add();
item["Title"] = "Item title";
item.Update();

我将如何添加图片？图片存储在文件系统上，即 c:\myfile.png 我想我需要使用 SPFile 但不知道如何使用。

Answer 1

这是从文件创建 byte[] 的方法

private byte [] StreamFile(string filename)
{
  FileStream fs = new FileStream(filename, FileMode.Open,FileAccess.Read);
  // Create a byte array of file stream length
  byte[] ImageData = new byte[fs.Length];
  //Read  block of bytes from stream into the byte array
  fs.Read(ImageData,0,System.Convert.ToInt32(fs.Length));
  //Close the File Stream
  fs.Close();
  return ImageData;
}

// then use the following to add the file to the list
list.RootFolder.Files.Add(fileName, StreamFile(fileName));

Answer 2

就像将文件添加到文档库一样简单。下面是可以帮助您完成此操作的代码片段。我已从此链接 由于格式不正确，我在这里粘贴了一个干净的版本

try
        {
            byte[] imageData = null;
            if (flUpload != null)
            {
                // This condition checks whether the user has uploaded a file or not
                if ((flUpload.PostedFile != null) && (flUpload.PostedFile.ContentLength > 0))
                {
                   Stream MyStream = flUpload.PostedFile.InputStream;
                   long iLength = MyStream.Length;
                   imageData = new byte[(int)MyStream.Length];
                   MyStream.Read(imageData, 0, (int)MyStream.Length);
                   MyStream.Close();
                   string filename = System.IO.Path.GetFileName(flUpload.PostedFile.FileName);                                                
                   SPPictureLibrary pic = (SPPictureLibrary)SPContext.Current.Web.Lists["Images"];//Images is the picture library name
                   SPFileCollection filecol = ((SPPictureLibrary)SPContext.Current.Web.Lists["Images"]).RootFolder.Files;//getting all the files which is in picture library
                   filecol.Add(filename, imageData);//uploading the files to picture library
                    
                }
            }                
        }
        catch (Exception ex)
        {
            //handle it
        }