CSOM code in C # to download and upload multiple files from/to sharepoint library

Question

Hi All,
Please help me I want to first download all my files from sharepoint library to my local folder using CSOM code .
Once downloading is completed I want to upload those files in another library .
I have done same thing using web services but need to do by CSOM now.
Thanks please provide code of peice
sudhanshu sharma Do good and cast it into river :)

Answer 1

By using below code I am downloading multiple documents and uploading same doc to sharepoint while uploading i want to updat emetadata of source library to destination library ..
I am able to do so but want to do now for dateandTime+metadata column as well please can you check my approach and let me know tht how to do for such kind of columns-
FileProperty.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ST_9569f2fe51bd4137bb31c38b3d46455d
class FileProperty
public string Title; //single line of text
public string Description; //Multiple line of text
public string DocumentType; //choice type
public string DocumentCategory; //Choice type
public string DocumentNumber; //Single line of text
// public string DocumentStatus; //Choice
public string DocumentTitle; //single line of text
// public string CrossReference; //Multipleline type
//public DateTime PublishDate; //DateAndTime Type column
/// <summary>
/// Get the SP Document Column internal name and thier respective values
/// in key -value pair.
/// </summary>
/// <returns>The List of KeyValuePair</returns>
public List<KeyValuePair<string, string>> getColumnKeyValueListProducts()
{//Target Columns
List<KeyValuePair<string, string>> columnKeyValuePairList = new List<KeyValuePair<string, string>>();
columnKeyValuePairList.Add(new KeyValuePair<string, string>("Title", Title));
columnKeyValuePairList.Add(new KeyValuePair<string, string>("Description0", Description));
columnKeyValuePairList.Add(new KeyValuePair<string, string>("Document_x0020_Type", DocumentType));
columnKeyValuePairList.Add(new KeyValuePair<string, string>("Document_x0020_Category", DocumentCategory));
columnKeyValuePairList.Add(new KeyValuePair<string, string>("Document_x0020_Number", DocumentNumber));
//columnKeyValuePairList.Add(new KeyValuePair<string, string>("Document_x0020_Status", DocumentStatus));
columnKeyValuePairList.Add(new KeyValuePair<string, string>("Document_x0020_Title", DocumentTitle));
//columnKeyValuePairList.Add(new KeyValuePair<string, string>("Cross%5Fx0020%5FReference", CrossReference));
// columnKeyValuePairList.Add(new KeyValuePair<string, string>("Publish_x0020_Date", PublishDate));
return columnKeyValuePairList;
/* public List<KeyValuePair<string, DateTime>> getColumnKeyValueListProductsforDatenTime()
//Target Columns
List<KeyValuePair<string, DateTime>> columnKeyValuePairListdt = new List<KeyValuePair<string, DateTime>>();
columnKeyValuePairListdt.Add(new KeyValuePair<string, DateTime>("Publish_x0020_Date", PublishDate));
return columnKeyValuePairListdt;
#region Help: Introduction to the script task
/* The Script Task allows you to perform virtually any operation that can be accomplished in
* a .Net application within the context of an Integration Services control flow.
* Expand the other regions which have "Help" prefixes for examples of specific ways to use
* Integration Services features within this script task. */
#endregion
#region Namespaces
using System;
using System.Data;
using Microsoft.SqlServer.Dts.Runtime;
using System.Windows.Forms;
using Microsoft.SharePoint.Client;
using System.IO;
using System.Net;
using System.Collections.Generic;
//using System.IO;
#endregion
namespace ST_9569f2fe51bd4137bb31c38b3d46455d
/// <summary>
/// ScriptMain is the entry point class of the script. Do not change the name, attributes,
/// or parent of this class.
/// </summary>
[Microsoft.SqlServer.Dts.Tasks.ScriptTask.SSISScriptTaskEntryPointAttribute]
public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
#region Help: Using Integration Services variables and parameters in a script
/* To use a variable in this script, first ensure that the variable has been added to
* either the list contained in the ReadOnlyVariables property or the list contained in
* the ReadWriteVariables property of this script task, according to whether or not your
* code needs to write to the variable. To add the variable, save this script, close this instance of
* Visual Studio, and update the ReadOnlyVariables and
* ReadWriteVariables properties in the Script Transformation Editor window.
* To use a parameter in this script, follow the same steps. Parameters are always read-only.
* Example of reading from a variable:
* DateTime startTime = (DateTime) Dts.Variables["System::StartTime"].Value;
* Example of writing to a variable:
* Dts.Variables["User::myStringVariable"].Value = "new value";
* Example of reading from a package parameter:
* int batchId = (int) Dts.Variables["$Package::batchId"].Value;
* Example of reading from a project parameter:
* int batchId = (int) Dts.Variables["$Project::batchId"].Value;
* Example of reading from a sensitive project parameter:
* int batchId = (int) Dts.Variables["$Project::batchId"].GetSensitiveValue();
#endregion
#region Help: Firing Integration Services events from a script
/* This script task can fire events for logging purposes.
* Example of firing an error event:
* Dts.Events.FireError(18, "Process Values", "Bad value", "", 0);
* Example of firing an information event:
* Dts.Events.FireInformation(3, "Process Values", "Processing has started", "", 0, ref fireAgain)
* Example of firing a warning event:
* Dts.Events.FireWarning(14, "Process Values", "No values received for input", "", 0);
#endregion
#region Help: Using Integration Services connection managers in a script
/* Some types of connection managers can be used in this script task. See the topic
* "Working with Connection Managers Programatically" for details.
* Example of using an ADO.Net connection manager:
* object rawConnection = Dts.Connections["Sales DB"].AcquireConnection(Dts.Transaction);
* SqlConnection myADONETConnection = (SqlConnection)rawConnection;
* //Use the connection in some code here, then release the connection
* Dts.Connections["Sales DB"].ReleaseConnection(rawConnection);
* Example of using a File connection manager
* object rawConnection = Dts.Connections["Prices.zip"].AcquireConnection(Dts.Transaction);
* string filePath = (string)rawConnection;
* //Use the connection in some code here, then release the connection
* Dts.Connections["Prices.zip"].ReleaseConnection(rawConnection);
#endregion
/// <summary>
/// This method is called when this script task executes in the control flow.
/// Before returning from this method, set the value of Dts.TaskResult to indicate success or failure.
/// To open Help, press F1.
/// </summary>
public void Main()
// TODO: Add your code here
//Unpublished lib used to download files from sharepoint to local and Published library for uploading files from local to sharepoint
//var srcFolderUrl = "http://ui3dats011x:2015/sites/techunits/UnPublished%20Doc/Forms/AllItems.aspx";
//var destFolderUrl = "http://ui3dats011x:2015/sites/techunits/Published%20Documents/Forms/AllItems.aspx";
using (var ctx = new ClientContext("http://ui3dats011x:2015/sites/techunits/"))
try
List LibraryName = ctx.Web.Lists.GetByTitle("Unpublished Doc");
List LibraryName1 = ctx.Web.Lists.GetByTitle("Published Documents");
ctx.Load(LibraryName1.RootFolder);
ctx.Load(LibraryName);
ctx.ExecuteQuery();
CamlQuery camlQuery = new CamlQuery();
//Used this caml query for filtering
camlQuery.ViewXml = @"<View><Query><Where><Eq><FieldRef Name='Document_x0020_Type'/><Value Type='Choice'>Technical Unit</Value></Eq></Where></Query></View>";
Microsoft.SharePoint.Client.ListItemCollection listItems = LibraryName.GetItems(camlQuery);
ctx.Load<Microsoft.SharePoint.Client.ListItemCollection>(listItems);
ctx.ExecuteQuery();
string filename;
FileInformation fileInfo;
System.IO.FileStream outputStream;
Dictionary<string, string> itemmetadata = new Dictionary<string, string>();
foreach (var item in listItems)
if (itemmetadata.Count > 0)
itemmetadata.Clear();
ctx.Load(item);
ctx.ExecuteQuery();
ctx.Load(item.File);
ctx.ExecuteQuery();
filename = item.File.Name;
foreach (KeyValuePair<string, object> metaval in item.FieldValues.)
string metavalue = Convert.ToString(metaval.Value);
//if(String.IsNullOrEmpty(metaval.Value.ToString()))
if (!(String.IsNullOrEmpty(metavalue)))
itemmetadata.Add(metaval.Key, metaval.Value.ToString());
else
itemmetadata.Add(metaval.Key, "");
fileInfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect(ctx, item.File.ServerRelativeUrl.ToString());
outputStream = new FileStream(@"C:\Users\jainruc\Desktop\Sudhanshu\ComDownload\" + filename, FileMode.Create, FileAccess.Write);
fileInfo.Stream.CopyTo(outputStream);
outputStream.Dispose();
outputStream.Close();
//Uploading
string srcpath = @"C:\Users\jainruc\Desktop\Sudhanshu\ComDownload\";
string siteName = @"http://ui3dats011x:2015/sites/techunits/";
string docLibraryName = @"http://ui3dats011x:2015/sites/techunits/Published%20Documents/Forms/AllItems.aspx";
UploadFile(srcpath, siteName, docLibraryName, itemmetadata,filename);
}//End of try
catch (Exception ex)
Dts.TaskResult = (int)ScriptResults.Success;
public void UploadFile(string srcpath, string siteName, string docLibraryName,Dictionary<string,string> metavalue,string filename)
using (ClientContext ctx = new ClientContext("http://ui3dats011x:2015/sites/techunits/"))
try
List LibraryName1 = ctx.Web.Lists.GetByTitle("Published Documents");
ctx.Load(LibraryName1.RootFolder);
ctx.Load(LibraryName1);
ctx.ExecuteQuery();
ctx.Credentials = new NetworkCredential("jainfgfgh", "Pashg8878", "mydomain");
//Loop for getting all files one by one
using (var fs = new FileStream(String.Concat(srcpath,"/",filename), FileMode.OpenOrCreate))
string fileUrl = String.Format("{0}/{1}", LibraryName1.RootFolder.ServerRelativeUrl, filename);
Microsoft.SharePoint.Client.File.SaveBinaryDirect(ctx, fileUrl, fs, true);
UpdateMetadata(fileUrl,ctx,metavalue);
//End of looping
}//End of try block
catch (Exception ex)
}//End of Using
}//End of function
public void UpdateMetadata(string uploadedfileurl,ClientContext ctx,Dictionary<string,string> mvalue)
Microsoft.SharePoint.Client.File uploadedfile = ctx.Web.GetFileByServerRelativeUrl(uploadedfileurl);
//create an object of the class holding all the properties of the document
ctx.Load(uploadedfile);
ctx.ExecuteQuery();
FileProperty fileProperty = new FileProperty();
fileProperty.Description = mvalue["Description0"];
fileProperty.Title = mvalue["Title"];
fileProperty.DocumentType = mvalue["Document_x0020_Type"];
fileProperty.DocumentCategory = mvalue["DocumentCategory"];
fileProperty.DocumentNumber = mvalue["DocumentNumber"];
fileProperty.DocumentTitle = mvalue["DocumentTitle"];
//fileProperty.PublishDate = Convert.ToDateTime(mvalue["PublishDate"]);
// fileProperty.DocumentStatus = mvalue["DocumentStatus"];
List<KeyValuePair<string, string>> columnKeyValueList;
//create a list of item need to be updated or added to sharepoint library
List<FileProperty> propertyList = new List<FileProperty>();
propertyList.Add(fileProperty);
columnKeyValueList = fileProperty.getColumnKeyValueListProducts();
ListItem item = uploadedfile.ListItemAllFields;
foreach (KeyValuePair<string, string> metadataitem in columnKeyValueList)
item[metadataitem.Key.ToString()] = metadataitem.Value.ToString();
//item["Title"] = uploadedfile.Title;
item.Update();
ctx.Load(item);
ctx.ExecuteQuery();
#region ScriptResults declaration
/// <summary>
/// This enum provides a convenient shorthand within the scope of this class for setting the
/// result of the script.
/// This code was generated automatically.
/// </summary>
enum ScriptResults
Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
#endregion
sudhanshu sharma Do good and cast it into river :)