Programmatically upload and retrieve image from SharePoint Picture Library

In this blog post we can see how to programmatically upload and retrieve images in SharePoint Picture Library. The uploaded file is read as stream and inserted into a picture library along with the additional attributes of the file.

Follow the below Steps to perform the upload and download functionality

Step 1

Create one picture library and named it “MySamplePictureLib“ in a SharePoint 2013

Step 2

Open the visual studio and create a new SharePoint Project and add a Visual web Part and name it as “PictureSamples “

Step 3

Click the VisualWebPart1 paste the below code inside the VisualWebPart1UserControl.ascx

 <table style="width: 424px">
     <tr>
         <td>
             <asp:FileUpload ID="FileUpload1" runat="server" />
         </td>
     </tr>
     <tr>
         <td>
             <asp:Button ID="Btnupload" runat="server" Text="Upload" OnClick="Btnupload_Click"
                 Width="90px" />
         </td>
     </tr>
     <asp:GridView ID="GrdImage" runat="server" AutoGenerateColumns="false">
         <Columns>
             <asp:TemplateField HeaderText="Image">
                 <ItemTemplate>
                     <img id="img" src='<%# Eval("URL") %>' alt="" />
                 </ItemTemplate>
             </asp:TemplateField>
             <asp:TemplateField HeaderText="Imageurl">
                 <ItemTemplate>
                     <asp:Label ID="Lblurl" runat="server" Text='<%# Eval("URL") %>'></asp:Label>
                 </ItemTemplate>
             </asp:TemplateField>
         </Columns>
     </asp:GridView>
 </table>

Step 4

Click VisualWebPart1UserControl.ascx.cs paste the below inside the partial Class

 public class ImageCollection
 {
     public ImageCollection(string ImageUrl, string ImageName) 
     {
         _URL = ImageUrl;
         _Name = ImageName; 
     }
 
     private string  _Name;
     private string _URL;
 
     public string Name
     {
         get { return _Name; }
         set { _Name = value; } 
     }
 
     public string URL
     {
         get { return _URL; }
         set { _URL = value; }
     }
 }
 
 protected void Page_Load(object sender, EventArgs e)
 {
     GridDatabind();
 }
 
 public void GridDatabind()
 {
     SPSecurity.RunWithElevatedPrivileges(delegate()
         {
             using (SPSite site = new Microsoft.SharePoint.SPSite(SPContext.Current.Site.Url))
             {
                 using (SPWeb web = site.OpenWeb())
                 {
                     SPList LstPicture = web.Lists["MySamplePictureLib"];
                     List<ImageCollection> lsts = new List<ImageCollection>();
                     foreach (SPListItem item in LstPicture.Items)  
                     {
                         string ImageUrl = Convert.ToString(item["Thumbnail URL"]);
                         string ImageName = Convert.ToString(item["Name"]);
                         lsts.Add(new ImageCollection(ImageUrl, ImageName));
                     }
                     GrdImage.DataSource = lsts;
                     GrdImage.DataBind();
                 }
             }
         });
 }
 
 protected void Btnupload_Click(object sender, EventArgs e)
 {
     using (SPSite site = new Microsoft.SharePoint.SPSite(SPContext.Current.Site.Url))
     {
         using (SPWeb web = site.OpenWeb())
         {
             web.AllowUnsafeUpdates = true;
             Stream StreamImage = null;
             if (FileUpload1.HasFile)
             {
                 StreamImage = FileUpload1.PostedFile.InputStream;
             }
             SPList pics = web.Lists["MySamplePictureLib"];
             pics.RootFolder.Files.Add(FileUpload1.FileName, StreamImage);
             GridDatabind();
         }
     }
 }

Step 5

Deploy and run your project you will see the output like this