OneDrive vs SP Online

You can store, sync, and share files with both OneDrive and SharePoint. This table explains some of the similarities and differences of these components of Office 365.

OneDrive for Business	SharePoint Online
Included in Office 365 Business plans	Included in Office 365 Business plans
Available as a stand-alone service, and there is a similarly-named consumer version	Available as a stand-alone service, but no consumer-facing version exists
Evolved from a service called SharePoint Workspace 2010, and before that Groove 2007	Cloud-based version of the SharePoint service that dates back to Office XP
Core architecture built on (or “powered behind the scenes” by) SharePoint	Core architecture built on (or “powered behind the scenes” by) SharePoint
Often considered or called a “storage location”	Often considered or called a “team site”
Could be thought of as the cloud version of the My Documents folder on your work computer	Could be thought of as an internal website and/or file server alternative
Manage files/data with metadata and versioning	Manage files/data with metadata and versioning
Accessed from browser or local folder or app depending on user preference	Usually accessed from a browser to use all features, but files can be accessed from local folder
OneDrive for Business sync app is used to sync OneDrive for Business files to a folder on local computer	OneDrive for Business sync app is used to sync SharePoint files to a folder on local computer (separate from OneDrive for Business folder)
All uploads default as private until you decide to share	Uploads default to inherit permissions from the directory/folder in which they are uploaded
Users sign in to their own OneDrive for Business accounts, with no shared interface	Users can access SharePoint as a branded company page, managed by an admin, that acts as a dashboard with news, calendar, etc.
Best place to upload private work documents that only you intend to see, or a document that has a limited scope or lifecycle (for example, a doc you only share once)	Best place to upload team files and/or documents that are intended to be collaborative and/or use check-in workflows and permissioning

So, OneDrive for Business and SharePoint Online: not exactly the same, yet not entirely different.

The real, noticeable differences will come with the way your workplace or department decides to use SharePoint. Organizations use SharePoint for project-based management sites, human resources portals, and more. OneDrive for Business uses SharePoint technology, but is better suited for storage and one-off sharing. Both of these components live in the cloud (it is Office 365, after all) and can sync files to your device so you can work anywhere.

Exception Trying to use an SPWeb object that has been closed or disposed and is no longer valid

A common mistake that people make in their code with this exception.
SPWeb, SPSite objects leak memory if they are not disposed properly.
The problem is so much talked about that as soon as we think of SPSite and SPWeb we unconsciously put using (SPWeb spweb = blah blah)
However when you use SPContext to get site or web object you should not be using “USING” or you should not dispose that object.  SPContext is passed to another web part on the page and SharePoint will dispose it when done.
Hence if you have been using (SPSite spsite = SPContext.Current.Site) it is wrong.  It might not always break as you might just have one web part in your code but you will see it break as soon as you add another web part and may be try to check in the page.

so change
using (SPSite spsite = SPContext.Current.Site)
to
SPSite site = SPContext.Current.Site.

Export to Excel issue - no events work

Post Back does not work after writing files to response or
After Export To Excel Button Event No Events Firing In Sharepoint?

I had this issue with sharepoint. I have a button on the page that sends a file and after clicking the button, the rest of the form was unresponsive. Turns out it is a sharepoint thing that sets the variable _spFormOnSubmitCalled to true to prevent any further submits. When we send a file this doesn't refresh the page so we need to manually set this variable back to false.

On your button in the webpart set the OnClientClick to a function in your javascript for the page.<asp:Button ID="generateExcel" runat="server" Text="Export Excel"OnClick="generateExcel_Click" OnClientClick="javascript:setFormSubmitToFalse()" />

Then in the javascript I have this function.

<script language="javascript" type="text/javascript">
    function setFormSubmitToFalse() {
        setTimeout(function () { _spFormOnSubmitCalled = false; }, 3000);
        return true;
    }
</script>

The 3 second pause I found was necessary because otherwise I was setting the variable before sharepoint set it. This way I let sharepoint set it normally then I set it back to false right after.

SharePoint Performance Improvement with custom applications

Notes:

1.1       Web References
http://msdn.microsoft.com/en-us/library/aa292118(v=vs.71).aspx
http://blog.mastykarz.nl/pageasynctask-improve-performance-website/\
http://srinutamada1.wordpress.com/2012/06/15/sharepoint-2010-performance-improvement-steps/
http://weblogs.asp.net/scottgu/archive/2006/04/11/442448.aspx
It is always recommended that you publish website in Release Mode

The following documented resources from the Internet are applicable to, or have been used to compile and validate the content of, this document:

·          SharePoint 2010 Developer Best Practices Resource Center.

·         SharePoint Developer Center: http://msdn.microsoft.com/en-us/sharepoint/default

·         Best Practices with SharePoint Foundation: http://msdn.microsoft.com/en-us/library/ee556427(office.14).aspx 

·         http://www.sharepointdevwiki.com/

SharePoint Performance improvement:

1. Impersonation can significantly affect performance and scaling. It is generally more expensive to impersonate a client on a call than to make the call directly. 

2. http://social.msdn.microsoft.com/Forums/sharepoint/en-US/610bdb2b-387b-4e68-b487-547f9cb5651c/improving-performance-on-sharepoint-webparts

3. Using PageAsyncTask to improve the performance of your website

     

5.    SharePoint 2010 Performance – Improvement Steps

a.    Use XSLT instead of grids.

b.    Disable view state if you are not performing any use actions.

c.    Don’t throw exceptions; re throw exceptions are much costlier in terms of memory consumption and execution.

d.    Minimize exception handling blocks, use exception block where ever you are not able to handle or pretend exceptions.

e.     

6.    Don’t run production ASP.NET Applications with debug=”true” enabled

a.    If you publish using Debug mode, your generated files have debugging enabled and that will impact the performance.

b.     

  

Create a Custom Master Page for SharePoint 2013 for Teams/Publishing Site Collection

I have successfully created a custom masterpage for SharePoint 2013 using Visual Studio 2013. Here are the steps I did to create my custom masterpage:Open the 15 hive to directory "15\TEMPLATE\GLOBAL"

1. Copy the "seattle.master" file (or the oslo.master file)
2. Create a new directory on your C: and paste the file
3. Rename the file to anything you want. (i.e. seatle_k.master)
4. Open Visual Studio 2013
5. Create a new empty project
6. Add a new module (2 files are created inside the module automatically.)
7. Change the name of the module (i.e. ModuleMP)
8. Delete the sample.txt file that was created automatically by adding the module
9. Add an existing file to the module. Browse to your new seatle_k.master file and add it.
10. Open the elements.xml file in the module.
11. Change the <Module ...> by adding "List=116" and Url="_catalogs/masterpage"
12. Change the <File ...> by adding Type="GhostableInLibrary"
    
    <?xml version="1.0" encoding="UTF-8"?><Elements xmlns="http://schemas.microsoft.com/sharepoint/">
    <Module Url="_catalogs/masterpage" List="116" Name="ModuleMP">
    <File Url="ModuleMP/seattle_kcpl.master" Type="GhostableInLibrary" Path="ModuleMP\seattle_k.master"/>
    </Module>
    </Elements>


13. Change the name of "Feature1" to something more useful (i.e. K_Feature1)
14. Double click on Feature1 (now K_Feature1) and add custom text to the title and description.
15. Double check that the project will deploy to the correct site collection URL by checking the "Site URL"
16. Build your project
17. Deploy your project
18. Assuming everything went well your project should be successfully deployed.
    (In my case it errored out with "unable to activate feature". then I created the package wsp and deployed with powershell, Add-SPSolution then manually deployed it from Central Admin.)
    
    If this is a publishing site collection, you can change the new masterpage from Site Settings -->Master page and Page layout under look and feel. If this is Team Site Collection then pls follow the below steps.
19. Open the destination site collection and go to the site settings. Check site features and double check that the solution was added and automatically activated.
20. Open SharePoint Designer 2013
21. Open the destination site where you deployed your new acme.master file
22. In the left-hand vertical navigation in SPD click on the link "Master Pages"
23. You should see your new acme.master file in the list
24. Right-click on the acme.master file and click link "Set as Default Master Page"
25. Ignore and click 'OK' when a pop-up message telling you that there is no associated html file to your masterpage.
26. Navigate to your destination site in Internet Explorer to see your new masterpage

Find PID for IIS Application Pool’s Worker Process

This blog post will show the different methods to identify the process ID (PID) for an active worker process (w3wp.exe) for an application pool

Method 1: - Internet Manager UI

• Open IIS Manager
• In the Connections pane, select the server node in the tree
• In Features View, double-click Worker Processes
• View the list of worker processes in the grid

Method 2: - Appcmd

Appcmd is used to list out the running worker processes. The path to the utility is not set and running directly from the command prompt will fail. Use the following instructions to set the path for the utility.

Location of appcmd.exe %systemroot%\system32\inetsrv

64-bit Windows, use Appcmd.exe from the %windir%\system32\inetsrv directory, not the %windir%\syswow64\inetsrv directory.

Set the path to the location

• Start -> Computer -> Right Click ->Properties
• Advanced System Settings -> Environment Variables
• System Variables -> Path -> Edit
• Add C:\Windows\System32\inetsrv

To start Appcmd.exe

• Click Start, and then click All Programs.
• Click Accessories, and then click Command Prompt.
• At the Command Prompt, > cd %windir%\system32\inetsrv, and then press ENTER if the path is not set. Otherwise, enter appcmd on the command line

To List the started worker processes

>appcmd list wps

For complete listing of appcmds Listing of IIS 7+ Appcmd

Method 3: - Task Manager

• Start Task Manager
• Select the Processes tab
• Add the following columns from View->Select Columns
  • PID
  • Command Line

• Sort the Image column and find the w3wp.exe process name
• Expand the Command Line column and the worker process name is on the far right

Method 4: - Process Explorer

• Download Process Explorer from http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx
• In Process Explorer, add the following columns from View->Select Columns->Process Image tab
  • Image Path
  • PID
  • Image Type (64 vs. 32 bit)
  • Command Line

• Find the svchost.exe in the Process column and the w3wp.exe processes are listed
• Expand the Command Line column and the worker process is listed

Powershell Commands

New ULS Logs file
Use the below command when ever you want to create a new new Log file.
This is very helpful while investigating an issue. To get ULS logs for 30 seconds, execute the below command twice at starting and end of 30th second, so you will have a separate log file for the time period.
New-SPLogFile


Merge URLs Logs:
Combines trace log entries from all farm computers into a single log file on the local computer.

Merge-SPLogFile -Path <String> [-Area <String[]>] [-AssignmentCollection <SPAssignmentCollection>] [-Category <String[]>] [-ContextFilter <String[]>] [-Correlation <Guid[]>] [-EndTime <DateTime>] [-EventID <String[]>] [-ExcludeNestedCorrelation <SwitchParameter>] [-Level <String>] [-Message <String[]>] [-Overwrite <SwitchParameter>] [-Process <String[]>] [-StartTime <DateTime>] [-ThreadID <UInt32[]>]