Delete attachment form SharePoint

Delete attachment form SharePoint

public void DeleteUploadedFile(string fileName, string strUARID)

{

WindowsIdentity wi = WindowsIdentity.GetCurrent();

WindowsImpersonationContext ctx = null;

RevertToSelf();

 

SPSite objSPSite = null;

SPWeb objSPWeb = null;

SPList objSPList = null;

SPQuery oquery = null;

 

string InFile = String.Empty;

string CompairFile = String.Empty;

string attachFileName = string.Empty;

 

SPListItemCollection myitems = null;

SPAttachmentCollection attachments = null;

 

try

{

ctx = WindowsIdentity.GetCurrent().Impersonate();

 

objSPSite = new SPSite(System.Configuration.ConfigurationManager.

AppSettings["SPDocumentLibrary"]);

objSPWeb = objSPSite.AllWebs[System.Configuration.ConfigurationManager.

AppSettings["TopLevelSite"]];

objSPList = objSPWeb.Lists[System.Configuration.ConfigurationManager.

AppSettings["ListName"]];

objSPSite.OpenWeb();

objSPSite.AllowUnsafeUpdates = true;

objSPWeb.AllowUnsafeUpdates = true;

 

//Create an instance of SPQuery Object

oquery = new SPQuery();

//Specify the condition

oquery.Query = “” + strUARID.Trim() + “”;

//Set the row limit

oquery.RowLimit = 1;

 

//Assign the query object to myitems List Collection

myitems = objSPList.GetItems(oquery);

foreach (SPListItem item in myitems)

{

attachments = item.Attachments;

if (attachments.Count > 0)

{

SPFolder folder = objSPWeb.Folders["Lists"].SubFolders[System.Configuration.

ConfigurationManager.AppSettings["FolderName"]].SubFolders["Attachments"].

SubFolders[item["ID"].ToString()];

foreach (SPFile file in folder.Files)

{

attachFileName = file.ToString().Replace(“/”, “\\”);

InFile = fileName.ToString();

CompairFile = attachFileName.ToString().Substring(attachFileName.ToString().

LastIndexOf(“\\”) + 1);

 

if (CompairFile.Trim().ToUpper() == InFile.Trim().ToUpper())

{

file.Delete();

break;

}

}

}

}

}

catch (Exception ex)

{

throw ex;

}

finally

{

objSPSite.AllowUnsafeUpdates = false;

objSPWeb.AllowUnsafeUpdates = false;

objSPSite.Dispose();

objSPWeb.Dispose();

// Ensure impersonation is reverted

ctx.Undo();

}

}