如何将图像从DevExpress gridControl中的RepositoryItemPictureEdit保存到sql数据库

Question

我曾经使用此代码将图像从DevExpress PictureEdit保存到SQL数据库

byte[] Picture;
MemoryStream ms = new MemoryStream();
pictureEdit.Image.Save(ms, ImageFormat.Jpeg);
Picture = ms.ToArray();

现在我有gridControl连一栏“图像”

void CreateImageTable()
    {
        dtimage.Columns.Add("Image", typeof(Image));

        gridControl4.DataSource = dtimage;
    }

我使用此代码将图像添加到gridControl

        private void simpleButton1_Click(object sender, EventArgs e)
    {
        var ofd = new XtraOpenFileDialog();
        ofd.Multiselect = true;
        ofd.Filter = "Image|*.JPG;*.BMP;*.PNG;*.JPEG;*.GIF";
        ofd.Title = Resources.insertImage;
        ofd.ShowDialog();
        for (int z = 0; z < ofd.FileNames.Length; z++)
        {
            Image img = Image.FromFile(ofd.FileNames[z]);
            DataRow row = dtimage.NewRow();
            row[0] = img;
            dtimage.Rows.Add(row);
        }
    }

现在我创建

  RepositoryItemPictureEdit imgdaged = new RepositoryItemPictureEdit();
  gridControl4.RepositoryItems.Add(imgdaged);
        imgdaged.SizeMode = PictureSizeMode.Zoom;
        imgdaged.NullText = " ";
        imgdaged.PictureStoreMode = PictureStoreMode.ByteArray;
        imgdaged.ContextMenuStrip = new ContextMenuStrip();
        gridView4.Columns["Image"].ColumnEdit = imgdaged;

但是当我尝试使用此代码时

imgdaged.Image.Save(ms, ImageFormat.Jpeg);

我收到此错误：CS1061'RepositoryItemPictureEdit'不包含'Image'的定义，并且找不到可以接受的扩展方法'Image'接受类型的第一个参数（您是否缺少using指令或程序集引用？），这是我的代码执行存储过程

public void AddRawMaterialRecommendationImage(int FK_OrderNumber, string UserID, DateTime CreationDate,byte[] RawDamagedimage)
    {
        DAL.DataAccessLayer DAL = new DAL.DataAccessLayer();
        DAL.Open();
        SqlParameter[] param = new SqlParameter[4];

        param[0] = new SqlParameter("@FK_OrderNumber", SqlDbType.Int);
        param[0].Value = FK_OrderNumber;

        param[1] = new SqlParameter("@UserID", SqlDbType.NVarChar, 50);
        param[1].Value = UserID;

        param[2] = new SqlParameter("@CreationDate", SqlDbType.Date);
        param[2].Value = CreationDate;

        param[3] = new SqlParameter("@RawDamagedimage", SqlDbType.Image);
        param[3].Value = RawDamagedimage;

        DAL.ExcuteCommande("AddRawMaterialRecommendationImage", param);
        DAL.Close();

    }

我尝试使用此代码，但不幸的是对我没有用

for (int i = 0; i < dtimage.Rows.Count; i++)
            {
                var row = dtimage.Rows[i];
                byte[] imageBytes = Encoding.Unicode.GetBytes(row["Image"].ToString());
                MemoryStream ms = new MemoryStream();
                imageBytes = ms.ToArray();
                damaged.AddRawMaterialRecommendationImage(Convert.ToInt32(txtBon.Text), Program.UserID, DateTime.Now, imageBytes);
            }

我该如何解决这个问题，谢谢。

Answer 1

我得到了解决方案，这有效的代码：

for (int i = 0; i < dtimage.Rows.Count; i++)
            {
                var row = dtimage.Rows[i];
                Image img = (Bitmap)row["Image"];
                byte[] Picture;
                MemoryStream ms = new MemoryStream();
                img.Save(ms, ImageFormat.Jpeg);
                Picture = ms.ToArray();
                damaged.AddRawMaterialRecommendationImage(Convert.ToInt32(txtBon.Text), Program.UserID, DateTime.Now, Picture);//row["Image"]

            }

我已经删除了RepositoryItemPictureEdit。