Download Document from SharePoint Library using WebService

In  following code, I am reading the contents from the documents and creating and storing documents in local system

//Copy WebService Settings
string webUrl = "http://portal/";
WSCopy.Copy copyService = new WSCopy.Copy();

copyService.Url = webUrl+"/_vti_bin/copy.asmx";

copyService.Credentials = System.Net.CredentialCache.DefaultCredentials;

//Source and Destination Document URLs
string sourceUrl = "http://localhost:1000/Shared%20Documents/Sample.doc";
string destinationUrl = "C:\\Documents\Sample.doc";


//Variables for Reading metadata’s of a document
WSCopy.FieldInformation fieldInfo = new WSCopy.FieldInformation();
WSCopy.FieldInformation[] fieldInfoArray = { fieldInfo };
WSCopy.CopyResult cResult1 = new WSCopy.CopyResult();
WSCopy.CopyResult cResult2 = new WSCopy.CopyResult();
WSCopy.CopyResult[] cResultArray = { cResult1, cResult2 };


//Receive a Document Contents into Byte array (filecontents)
byte[] fileContents = new Byte[4096];
copyService.GetItem(sourceUrl, out fieldInfoArray, out fileContents);


//Create a new file and write contents to that document
FileStream fStream = new FileStream(destinationUrl, FileMode.Create, FileAccess.ReadWrite);
fStream.Write(fileContents, 0, fileContents.Length);
fStream.Close();

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How to delete data from Sharepoint List using API?

Normally once you delete the data from the list it goes to Recycle Bin. During reading SDK I came to know about a method  'Delete' which deletes data permanently, does not send it recycle bin. So now we have two different approach for deleting list data.

Approach 1 - Delete Data Permanently

using (SPSite siteCollection = new SPSite("http://portal/"))
{
    using (SPWeb site = siteCollection.OpenWeb())
    {
       SPList list1 = site.Lists["MyList"];
       for (int i = list1.Items.Count - 1; i >= 0; i--)
      {
          list1.Items.Delete(i);
      }
    }
}

Approach 2 - Delete Data and it goes to recycle bin

using (SPSite siteCollection = new SPSite("http://portal/"))
{
   using (SPWeb site = siteCollection.OpenWeb())
   {
   SPList list1 = site.Lists["MyList"];
   for (int i = list11.Items.Count - 1; i >= 0; i--)
   {
      SPListItem olistitem = list11.Items[i];
      olistitem.Recycle();
   }
   }
}