topic Re: How to download individual files in alfresco cmis using c#? in Alfresco Archive

How to download individual files in alfresco cmis using c#?

divyabharathipa — Tue, 17 Jun 2014 11:38:25 GMT

Hello Team,I have two questions here . Please help me to sort out those problems :1) I have uploaded files into alfresco cmis using c# . After uploading I am displaying it in a table format or tree view format. But I am unable to view those files in a folder structure. How to display like : +

Re: How to download individual files in alfresco cmis using c#?

kaynezhang — Tue, 17 Jun 2014 14:50:17 GMT

I'm sorry I'm not clear about what you mean,If you want to download content using dotcmis,you can do it like this:
1.Get the IDocument object ,for example use GetObjectByPath() method of ISession.
2.Get the content stream of this document using IDocument.GetContentStream() method
3.Get System.io.stream from content stream and write it to file

Re: How to download individual files in alfresco cmis using c#?

divyabharathipa — Wed, 18 Jun 2014 04:51:51 GMT

Hi kaynezhang..

Thanks for your post. Please explain me how to download a file using dotcmis with tree view. If I click on file name in folder it needs to be downloaded in local . Please help me.

Re: How to download individual files in alfresco cmis using c#?

divyabharathipa — Wed, 18 Jun 2014 05:37:30 GMT

Finally What I need is if I click on any file in tree view it needs to be downloaded in local. Please help me

Re: How to download individual files in alfresco cmis using c#?

kaynezhang — Wed, 18 Jun 2014 14:34:15 GMT

When user click on file item in treeview,send request to your c# code behind and pass file item's node id or node path as parameter.
In c# code behind get node id or node path parameter,get document object using ISession 's GetObjectByPath() or ISession's GetObject() method of dotcmis api.
Then.Get the content stream of this document using IDocument.GetContentStream() method
Last write content stream into response.

Re: How to download individual files in alfresco cmis using c#?

divyabharathipa — Mon, 23 Jun 2014 10:03:00 GMT

Thanks Kayne.. I will try to fix that one.

Re: How to download individual files in alfresco cmis using c#?

bharathi — Mon, 23 Jun 2014 12:57:34 GMT

Hi Team,

I am new to Alfresco. I have successfully done with uploading documents into alfresco using dotcmis and displayed that in grid view. I am unable to download that. Please Please help me to achieve that. I have followed the above procedure.

In alfrescoupload page :

     <asp:GridView ID="grdDisplay" runat="server" AutoGenerateColumns="False" CellPadding="0"
                    CellSpacing="0" CssClass="grid table table-bordered table-hover">
                    <AlternatingRowStyle BackColor="White" />
                    <Columns>
                        <asp:BoundField DataField="ClaimName" HeaderText="Claim Name" />
                        <asp:HyperLinkField DataTextField="Name" HeaderText="Document Name" DataNavigateUrlFields="ClaimName, Name" DataNavigateUrlFormatString="~/DownloadFile.aspx?Id={0}&Name={1}" />
                        <asp:BoundField DataField="LastModifiedBy" HeaderText="LastModifiedBy" />
                    </Columns>
                </asp:GridView>

Code Behind :     dt.Rows.Add(treeItem.Item.Name, treeItem.Item.LastModifiedBy,tree.Item.Name);


In Download.aspx :

protected void Page_Load(object sender, EventArgs e)
        {
            Dictionary<string, string> parameters = new Dictionary<string, string>();
            parameters[DotCMIS.SessionParameter.BindingType] = BindingType.AtomPub;
            parameters[DotCMIS.SessionParameter.AtomPubUrl] = "http://127.0.0.1:8080/alfresco/cmisatom";
            parameters[DotCMIS.SessionParameter.User] = "admin";
            parameters[DotCMIS.SessionParameter.Password] = "root";
            string getUserID = Request.QueryString["Id"];
            //int userID = Convert.ToInt32(getUserID);
            string getDocName = Request.QueryString["Name"];
            SessionFactory factory = SessionFactory.NewInstance();
            ISession session = factory.GetRepositories(parameters)[0].CreateSession();
            IObjectId id = session.CreateObjectId(getUserID);
            IDocument doc = session.GetObject(id) as IDocument;
            IContentStream contentStream = doc.GetContentStream();
I tried like that. But I was unable to pass id as parameter. Please help me.

Thanks alot

Thanks,

Bharathi

Re: How to download individual files in alfresco cmis using c#?

bharathi — Tue, 24 Jun 2014 05:39:57 GMT

Please help me in to achieve the downloading documents in alfresco using cmis with c#.

Waiting for response

Re: How to download individual files in alfresco cmis using c#?

cnarvaez — Thu, 21 Jan 2016 18:08:01 GMT

Hi I´m using Alfresco 5 Community Manager, and need make the same process, this is upload a document from a desktop application building on c#. So if you try and make this please share the information

Re: How to download individual files in alfresco cmis using c#?

muralidharand — Mon, 25 Jan 2016 11:50:34 GMT

Hi,
Here is the sample C# which I have used to upload an image file from .net windows application to Alfresco Repo using CMIS.



IDictionary<string, object> DocumentProperties = new Dictionary<string, object>();
DocumentProperties[PropertyIds.Name] = FileName;
DocumentProperties[PropertyIds.ObjectTypeId] = "cmis:document";
Stream temp = new MemoryStream(content);
ContentStream contentStream = new ContentStream();
contentStream.FileName = FileName;
contentStream.MimeType = "image/jpeg";
contentStream.Length = content.Length;
contentStream.Stream = new MemoryStream(content);
IDocument doc = documentTypeFolderRef.CreateDocument(DocumentProperties, contentStream, DotCMIS.Enums.VersioningState.Major);

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Re: How to download individual files in alfresco cmis using c#?

cnarvaez — Fri, 29 Jan 2016 15:58:24 GMT

Thanks.!!!

Re: How to download individual files in alfresco cmis using c#?

rodrigogalodoid — Tue, 29 Mar 2016 00:59:59 GMT

Hello , u could solve your problem , I need to get a pdf file q this alfresco and put in a directory on my server , I use .NET.

Re: How to download individual files in alfresco cmis using c#?

trola — Wed, 31 Aug 2016 06:02:30 GMT

Here is my code for downloading file from alfresco using CMIS.


 Document doc = ((Document)session.GetObjectByPath(path));
 IContentStream bla = doc.GetContentStream();
            
 byte[] b = null;
 using (MemoryStream ms = new MemoryStream())
 {
     int count = 0;
     do
     {
           byte[] buf = new byte[1024];
           count = bla.Stream.Read(buf, 0, 1024);
           ms.Write(buf, 0, count);
     } while (bla.Stream.CanRead && count > 0);
     
     b = ms.ToArray();
 }

 SaveFileDialog sfd = new SaveFileDialog();
 if (sfd.ShowDialog() == true)
      File.WriteAllBytes(sfd.FileName, b);
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