How to retrieve byte image from database in view

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C#

public ActionResult GetImage(string name)
       {
           byte[] cover = GetImageFromDataBase(name);
           if (cover != null)
           {
               return File(cover, "image/jpeg");
           }
           else
           {
               return null;
           }

       }

       public byte[] GetImageFromDataBase(string name)
       {
           RegisterLogic logic = new RegisterLogic();
           byte[] image = logic.GetImage(name);
           return image;
       }

My Logic is

C#

public byte[] GetImage(string name)
       {
           con.ConnectionString = str;
           cmd.Connection = con;
           if (con.State == ConnectionState.Open)
               con.Close();
           if (con.State == ConnectionState.Closed)
               con.Open();
           cmd.CommandText = "Select Picture from InspiniaMessage where UserName='" + name + "'";
           cmd.CommandType = CommandType.Text;

           SqlDataAdapter sda = new SqlDataAdapter(cmd);
           DataTable dt = new DataTable();
           sda.Fill(dt);
           Message m = new Message();
           foreach (DataRow dr in dt.Rows)
           {
               Message mn = new Message();
               mn.Picture = (byte[])(dr["Picture"]);
               m.Picture = mn.Picture;
           }

           return m.Picture;
           con.Close();
       }
   }

And my view is

HTML

<table id="tblMessage" class="table table-hover table-mail">
                        <tbody>
                            @foreach (var item in Model)
                            {
                                using (Html.BeginForm("Delete", "Mailbox", new { id = item.ID }))
                                {
                               
                                <tr class="read">
                                    <td class="check-mail">
                                        <input id="check" type="checkbox" name="check" class="i-checks">
                                    </td>
                                    <td class="mail-ontact" style="font-weight: bold">
                                        @item.UserName
                                    </td>
                                    <td class="mail-subject">
                                        @item.MessageText
                                    </td>
                                    <td>
                                      
                                      <img src="@Url.Action("GetImage", "Mailbox", new { name = @ViewData["UserName"] })"/>                           
                                    </td>
                                    <td>
                                        @item.Timing
                                    </td>

                                    <td>
                                        @* <button class="btn btn-danger btn-sm" data-toggle="modal" data-target=".bs-example-modal-sm" title="Reply" type="button"></button>*@
                                        <button id="delete" class="btn btn-white btn-sm" title="Move to trash" type="submit" value="Delete" >^__i class="fa fa-trash-o"></button>
                                    </td>
                                </tr>
                                }
                            }
                        </tbody>
                    </table>

Posted 13-Apr-15 19:47pm

Jayesh27j

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Raul Iloc · Answer 1 · 2015-04-13T20:01:00

You should create a class, named ImageResult, that extends the ActionResult and override the ExecuteResult method like in the example below.

C#

public override void ExecuteResult(ControllerContext context)
{
    if (context == null)
        throw new ArgumentNullException("context");
    //
    try
    {
        HttpResponseBase response = context.HttpContext.Response;
        response.ContentType = this.ContentType;
        //
        if (this.ImageStream == null)
        {
            string filePath = context.HttpContext.Server.MapPath("/Content/noimageSmall.jpg");
            System.Drawing.Image imageIn = System.Drawing.Image.FromFile(filePath);
            MemoryStream ms = new MemoryStream();
            //
            imageIn.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
            response.OutputStream.Write(ms.ToArray(), 0, (int)ms.Length);
        }
        else
        {
            byte[] buffer = new byte[4096];
            //
            while (true)
            {
                int read = this.ImageStream.Read(buffer, 0, buffer.Length);
                if (read == 0)
                    break;
                //
                response.OutputStream.Write(buffer, 0, read);
            }
        }
        //
        response.End();
    }
    catch (Exception ex)
    {
        MvcBasicLog.LogException(ex);
    }
}

For details (and demo code) about this you could have a look on my next article (sub-chapters ImageResult and OpenFileResult): MVC Basic Site: Step 3 – Dynamic Layouts and Site Admin with: AJAX, jqGrid, Controller Extensions, HTML Helpers, and more[^]