Get List Field Internal Name

You can get the internal name for a column by browsing to the List Settings > Edit Column and look at the QueryString. This will be url encoded but is a simple way of retrieving the internal name without writing any code. You will get something like: /_layouts/FldEdit.aspx?List=%7B37920121%2D19B2%2D4C77%2D92FF%2D8B3E07853114%7D&Field=Product%5Fx0020%5FDescription %5F is a '_'. The field name is Product_x0020_Description. The code option is to use: string itemInternalName = item.Fields["Field Display Name"].InternalName;

Different ways to get user name using javascript

Get user email

_spPageContextInfo.userLoginName

Using REST Service

 $(document).ready(function () {  
 var userid = _spPageContextInfo.userId;  
 function GetCurrentUser() {  
 var requestUri = _spPageContextInfo.webAbsoluteUrl + "/_api/web/getuserbyid(" + userid + ")";  
 var requestHeaders = { "accept" : "application/json;odata=verbose" };  
 $.ajax({  
  url : requestUri,  
  contentType : "application/json;odata=verbose",  
  headers : requestHeaders,  
  success : onSuccess,  
  error : onError  
 });  
 }  
 function onSuccess(data, request){  
  //var loginName = data.d.LoginName.split('|')[1];  
  var loginName = data.d.Title; 
  alert(loginName);  
 }  
 function onError(error) {  
  alert(error);  
 }  
 GetCurrentUser();  
 });  

Using JSOM

 $(document).ready(function () {   
 var currentUser;  
 // Ensure that the SP.js is loaded  
 if (SP.ClientContext != null) {  
  SP.SOD.executeOrDelayUntilScriptLoaded(getCurrentUser, 'SP.js');  
 }  
 else {  
  SP.SOD.executeFunc('sp.js', null, getCurrentUser);  
 }  
 function getCurrentUser() {  
  var context = new SP.ClientContext.get_current();  
  var web = context.get_web();  
  currentUser = web.get_currentUser();  
  context.load(currentUser);  
  context.executeQueryAsync(onSuccessMethod, onRequestFail);  
 }  
 function onSuccessMethod(sender, args) {  
  var account = currentUser.get_loginName();  
  var currentUserAccount = account.substring(account.indexOf("|") + 1);  
  alert(currentUserAccount);  
 }  
 // This function runs if the executeQueryAsync call fails.  
 function onRequestFail(sender, args) {  
  alert('request failed' + args.get_message() + '\n' + args.get_stackTrace());  
 }  
 });  

SharePoint 2013: Get UserProfile Properties with REST API

Thanks to 

http://www.vrdmn.com/2013/07/sharepoint-2013-get-userprofile.html

1) Get all properties of current user:

http://siteurl/_api/SP.UserProfiles.PeopleManager/GetMyProperties

2) Get single property of current user:

http://siteurl/_api/SP.UserProfiles.PeopleManager/GetMyProperties/PictureUrl
OR
http://siteurl/_api/SP.UserProfiles.PeopleManager/GetMyProperties?$select=PictureUrl

3) Get Multiple Properties for the current user:

http://siteurl/_api/SP.UserProfiles.PeopleManager/GetMyProperties?$select=PictureUrl,AccountName

4) Get all properties of Specific User:

For Office 365/SharePoint Online:
http://siteurl/_api/SP.UserProfiles.PeopleManager/GetPropertiesFor(accountName=@v)?@v='i:0%23.f|membership|vardhaman@siteurl.onmicrosoft.com'

For SharePoint 2013 On-Premise:
http://siteurl/_api/SP.UserProfiles.PeopleManager/GetPropertiesFor(accountName=@v)?@v='domain\username'

5) Get Specific UserProfile Property of Specific User:

For Office 365/SharePoint Online:
http://siteurl/_api/SP.UserProfiles.PeopleManager/GetUserProfilePropertyFor(accountName=@v,propertyName='LastName')?@v='i:0%23.f|membership|vardhaman@siteurl.onmicrosoft.com'


For SharePoint 2013 On-Premise:
http://siteurl/_api/SP.UserProfiles.PeopleManager/GetUserProfilePropertyFor(accountName=@v,propertyName='LastName')?@v='domain\username'

6) Get Multiple UserProfile Properties for Specific User:

http://siteurl/_api/SP.UserProfiles.PeopleManager/GetUserProfilePropertiesFor

My validators are not working

This was working 

<asp:RequiredFieldValidator ID="RequiredFieldValidator7" runat="server" ForeColor="Red" ErrorMessage="* This field cannot be blank." ControlToValidate="FunctionGroup">
</asp:RequiredFieldValidator>

...

<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ForeColor="Red" ErrorMessage="* This field cannot be blank." ControlToValidate="FunctionGroup">
</asp:RequiredFieldValidator>


As soon as I changed it to 

<asp:RequiredFieldValidator ID="RequiredFieldValidator7" runat="server" ForeColor="Red" ErrorMessage="* This field cannot be blank." ControlToValidate="FunctionGroup">
</asp:RequiredFieldValidator>

...

<!--

<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ForeColor="Red" ErrorMessage="* This field cannot be blank." ControlToValidate="FunctionGroup">
</asp:RequiredFieldValidator>

 -->

it stopped working. So if you don't want to use validator, instead of commentting out it, delete it.

SharePoint Search REST API not returning all subsites

This query is not working !!! I have 10 subsites, but it only returns 2 of them.
https://serverURL/_api/search/query?querytext='path:"*********"  contentclass:STS_Web'&rowlimit=20

Solution is to add &trimduplicates=false at the end of the query.
https://serverURL/_api/search/query?querytext='path:"*********"  contentclass:STS_Web'&rowlimit=20&trimduplicates=false

SharePoint Designer Cache Locations

• %APPDATA%\Microsoft\Web Server Extensions\Cache
• %USERPROFILE%\AppData\Local\Microsoft\WebsiteCache

XmlDocument.CreateElement automatically adds xmlns="". How to get ride of it?

Problem:

 <?xml version="1.0" encoding="UTF-8"?>  
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"   
  xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"   
  xmlns:video="http://www.google.com/schemas/sitemap-video/1.1">  
  <url xmlns="">   
 .......................  
  </url>  
 </urlset>  

Solution:
When creating the url element, instead of using

 doc.CreateElement("url");  

use

 doc.CreateElement("url","http://www.sitemaps.org/schemas/sitemap/0.9");