Error occurred in deployment step 'Recycle IIS Application Pool': The communication object, System.ServiceModel.InstanceContext, cannot be used for communication

Hi All,

When deploying a solution to SharePoint 2010, I suddenly got the error message:

Error occurred in deployment step ‘Recycle IIS Application Pool’: The communication object, System.ServiceModel.InstanceContext, cannot be used for communication because it has been Aborted.

Restarting Visual Studio did the trick. (IISreset did not help..)

SharePoint 2010 Web Part Error "The UserCodeToken is invalid"

Hi All,

The error says "Unhandled exception was thrown by the sandboxed code wrapper's Execute method in the partial trust app domain: The UserCodeToken is invalid". While this error message is very descriptive, it wasn't very helpful in determining a solution. No events in the error

​

 Update: Sandboxed solutions not working, try restarting the service in powershell "Restart-Service SPUsercodeV4"

Populate Drop Down Lists in Client Object Model

Hi All,

SharePoint 2010 provided two major custom web part enhancements: Visual Web Parts and Client Side Object Model (COM) using JavaScript. We can populate a dropdown items from a sharepoint list.

First populate a list for example : InterviewerList

In visual webpart add following tag in .ascx file inside a DIV tag :

<select id="ddlInterviewerName">

</select>

Then jump to your .js file and write following code :

jQuery(document).ready(function () {

    ExecuteOrDelayUntilScriptLoaded(function () {
        obj = new ScheduleInterviewClass();
        obj.LoadObjects();
    }, "sp.js");
});


function ScheduleInterviewClass() {

    this.LoadObjects = LoadObjects;

    var siteObjects = {
        ctx: null,
        web: null,
        url: null,
        InterviewerList: null,
        InterviewerListItems: null
    };

    
    function LoadObjects() {
        siteObjects.ctx = SP.ClientContext.get_current();
        siteObjects.web = siteObjects.ctx.get_web();
        siteObjects.ctx.load(siteObjects.web);
        siteObjects.ctx.executeQueryAsync(Function.createDelegate(this, LoadObjectsOnSuccess), Function.createDelegate(this, LoadObjectsOnFailure));
    }

    function LoadObjectsOnSuccess() {

        siteObjects.InterviewerList = siteObjects.web.get_lists().getByTitle("InterviewerList");      
        var query = new SP.CamlQuery();
        query.set_viewXml();

        siteObjects.InterviewerListItems = siteObjects.InterviewerList.getItems(query);

        siteObjects.ctx.load(siteObjects.InterviewerListItems);
        siteObjects.ctx.executeQueryAsync(Function.createDelegate(null, RenderHtmlOnSuccess), Function.createDelegate(null, RenderHtmlOnFailure));
    }

    function LoadObjectsOnFailure() {
        alert("Objects Not Loaded Properly. Try again");
    }

    function RenderHtmlOnSuccess() {
        var ddlInterviewer = this.document.getElementById("ddlInterviewerName");
        ddlInterviewer.options.length = 0;
        var enumerator = siteObjects.InterviewerListItems.getEnumerator();

        while (enumerator.moveNext()) {
            var currentItem = enumerator.get_current();
            ddlInterviewer.options[ddlInterviewer.options.length] = new Option(currentItem.get_item("InterviewerName").get_lookupValue(), currentItem.get_item("ID"));                    
        }
    }


    function RenderHtmlOnFailure(sender, args) {
        alert(args.get_message());
        alert("Not able to render HTML");
    }



}

How To Add Custom Web Part Properties To Visual Web Part In SharePoint 2010

Hey Folks,

Let’s see how we can add custom web part properties to a visual web part in SharePoint 2010.

Open Visual Studio 2010 -> File -> New -> Project -> Visual C# -> SharePoint -> 2010 and select Visual Web Part project template as below:

In SharePoint Customization Wizard, validate the SharePoint 2010 site URL as below:

Once Visual Studio 2010 open ups, it will look like below:

Open VisualWebPart1.cs file and add below code:

namespace AddCustomProperty.VisualWebPart1
{
[ToolboxItemAttribute(false)]
public class VisualWebPart1 : WebPart
{
// Visual Studio might automatically update this path when you change the Visual Web Part project item.
private const string _ascxPath = @”~/_CONTROLTEMPLATES/AddCustomProperty/VisualWebPart1/VisualWebPart1UserControl.ascx”;

private string _Name;
[WebBrowsable(true), WebDisplayName("Name"), WebDescription("My Name"),
Personalizable(PersonalizationScope.Shared), Category("Custom Property"),
System.ComponentModel.DefaultValue("")]

public string Name
{
get { return _Name; }
set { _Name = value; }
}

protected override void CreateChildControls()
{
VisualWebPart1UserControl control = (VisualWebPart1UserControl)Page.LoadControl(_ascxPath);
control.Name = Name;
Controls.Add(control);
}
}
}

It should look like below:

Open VisualWebPart1UserControl.ascx file and add below code:

It should look like below:

Open VisualWebPart1UserControl.ascx.cs file and add below code:

namespace AddCustomProperty.VisualWebPart1
{
public partial class VisualWebPart1UserControl : UserControl
{
public string Name { get; set; }

protected void Page_Load(object sender, EventArgs e)
{
NameLiteral.Text = "Your Name is : " + this.Name;
}
}
}

It should look like below:

Deploy The Project:

Final Look:

Thanks & Have Fun!! 

What is an App in SharePoint 2013

App is similar to a web part. One main key difference is everything is at the client side and not on the server side when you write a code developing an app which is called client web part.

In SharePoint 2013 Lists and Libraries are now termed as apps.

SharePoint now has its own app store where we get some free apps and some paid apps which can be installed and then can be used inside SharePoint.

There are three hosting options when you create app for SharePoint.

1) SharePoint hosted - On Premises.

2) Externally hosted

3) SharePoint Online - Sandbox solutions can be created. (deprecated now in SharePoint 2013) or new apps web part (client web part) can be used.

Certain important points about an app are :

•       App cannot have any server side code.

•      Apps  get created in a special “app web” on a special URL which is isolated from the original SharePoint web. Each app is a part of dedicated site collection.

•      App does not have permission to talk to the parent site or site collection

•     App cannot talk to the host site. ( a site in which app is displayed)

•       Apps can be created using Visual Studio 2012     or using "Napa" Office 365 Development Tools

So SharePoint 2013 apps do not live in SharePoint rather they execute within the browser client or in a non-SharePoint server such as IIS or Windows Azure.

Apps can only be added by users with Full Control permission to the site. As mentioned earlier Apps can be installed from the centralized app store from on premises SharePoint or from public app store.

Apps can also be opened as a full browser screen or can also be a part of page. When we want app as a part of page we can use app part just like a web part to display that app in the app part. App part will display content of that app part in Iframe html element.

Regardless of how you authenticate your app with SharePoint, you need to have user consent to perform actions. You declare the required permissions in the app manifest file while developing, and the user is asked to grant or deny those permissions to the app during installation.

You can connect your app with just about any internal or public web services, take advantage of the new OAuth 2.0 support in SharePoint, and use the Representational State Transfer (REST) and client APIs (JavaScript and .NET) to integrate and connect your app with SharePoint.

There is a list of available apps that can be downloaded (some free / some paid versions) from Microsoft market place for SharePoint 2013.

Microsoft App Market place for SharePoint 2013

FBA Cookie getting expired only in Safari and Chrome.

Hi Reader,

This blog is for all those guys who have tried their level best to solve this unique issue and still couldnt get the root cause why the Form Based Authentication Cookie getting expired daily ( almost after some hours ) ONLY on Safari and Chrome browser.

I have spend lot many days finding the root cause of this issue and yes also solve it for clients.
Applicaiton that use hosted Safari inside of UIWebView ( which is also Chrome) or Apps that host a website in PhoneGap usually face this issue. If its FBA then Google Chrome for iOS might switch FormsAuth to Cookieless mode.

This has been fixed in .NET 4.5 and you wont see this issue if you have .NET 4.5 installed, even uf you're running .NET 4 application. Since now you are facing this trouble then here are following steps to follow and immediately get rid of this issue.

Thanks to blogger: Scott

STEP 1:  Modify your web.config file.

<authentication mode="Forms" >
  <forms loginUrl="~/Account/SignIn" timeout="2880" cookieless="UseCookies" />
</authentication>

STEP 2:  Once you explore your Sharepoint hosted site in IIS you will notice the app_browser folder.
Create a "generic.browser" named file in that folder and paste the exact code in it.

<browsers>

  <browser refID="GenericDownlevel"> 

    <capabilities> 

      <capability name="cookies" value="true" /> 

    </capabilities>

  </browser>

</browsers>

STEP 3: Generate a New MachineKey.

“Machine key a unique key that differentiates one computer from others. And this key is used to create unique identifier when cookie is created in the client machine from a server side code. This key is generally present in the machine.config file when you install .NET framework that is generally not visible to the user as it remains in the .NET Framework installation directory. When you specify the same key in your web.config, the value of machine key specified in the machine.config is overridden by the one you have specified in the web.config file. “

Once the key is generated, they are converted into a string of hexadecimal characters.

Created a 256-bit decryption key and a 512-bit validation key, with Rijndael as the data validation algorithm.

You need to include this newly created machine key in your web.config file.

Generate Machine Key

Hope my above solution will surely save lot of efforts and time.

SharePoint Fields Internal Names List

Much used reprinting of list of fields with internal names for easy reference:

Document Library fields

Display Name	Internal Name	GUID	Type
ID	ID	{1d22ea11-1e32-424e-89ab-9fedbadb6ce1}	Counter
Content Type ID	ContentTypeId	{03e45e84-1992-4d42-9116-26f756012634}	ContentTypeId
Content Type	ContentType	{c042a256-787d-4a6f-8a8a-cf6ab767f12d}	Text
Created	Created	{8c06beca-0777-48f7-91c7-6da68bc07b69}	DateTime
Created By	Author	{1df5e554-ec7e-46a6-901d-d85a3881cb18}	User
Modified	Modified	{28cf69c5-fa48-462a-b5cd-27b6f9d2bd5f}	DateTime
Modified By	Editor	{d31655d1-1d5b-4511-95a1-7a09e9b75bf2}	User
Has Copy Destinations	_HasCopyDestinations	{26d0756c-986a-48a7-af35-bf18ab85ff4a}	Boolean
Copy Source	_CopySource	{6b4e226d-3d88-4a36-808d-a129bf52bccf}	Text
Approval Status	_ModerationStatus	{fdc3b2ed-5bf2-4835-a4bc-b885f3396a61}	ModStat
Approver Comments	_ModerationComments	{34ad21eb-75bd-4544-8c73-0e08330291fe}	Note
URL Path	FileRef	{94f89715-e097-4e8b-ba79-ea02aa8b7adb}	Lookup
Path	FileDirRef	{56605df6-8fa1-47e4-a04c-5b384d59609f}	Lookup
Modified	Last_x0020_Modified	{173f76c8-aebd-446a-9bc9-769a2bd2c18f}	Lookup
Created	Created_x0020_Date	{998b5cff-4a35-47a7-92f3-3914aa6aa4a2}	Lookup
File Size	File_x0020_Size	{8fca95c0-9b7d-456f-8dae-b41ee2728b85}	Lookup
Item Type	FSObjType	{30bb605f-5bae-48fe-b4e3-1f81d9772af9}	Lookup
Effective Permissions Mask	PermMask	{ba3c27ee-4791-4867-8821-ff99000bac98}	Computed
ID of the User who has the item Checked Out	CheckedOutUserId	{a7b731a3-1df1-4d74-a5c6-e2efba617ae2}	Lookup
Is Checked out to local	IsCheckedoutToLocal	{cfaabd0f-bdbd-4bc2-b375-1e779e2cad08}	Lookup
Checked Out To	CheckoutUser	{3881510a-4e4a-4ee8-b102-8ee8e2d0dd4b}	User
Name	FileLeafRef	{8553196d-ec8d-4564-9861-3dbe931050c8}	File
Unique Id	UniqueId	{4b7403de-8d94-43e8-9f0f-137a3e298126}	Lookup
ProgId	ProgId	{c5c4b81c-f1d9-4b43-a6a2-090df32ebb68}	Lookup
ScopeId	ScopeId	{dddd2420-b270-4735-93b5-92b713d0944d}	Lookup
Virus Status	VirusStatus	{4a389cb9-54dd-4287-a71a-90ff362028bc}	Lookup
Checked Out To	CheckedOutTitle	{9d4adc35-7cc8-498c-8424-ee5fd541e43a}	Lookup
Check In Comment	_CheckinComment	{58014f77-5463-437b-ab67-eec79532da67}	Lookup
Checked Out To	LinkCheckedOutTitle	{e2a15dfd-6ab8-4aec-91ab-02f6b64045b0}	Computed
Document Modified By	Modified_x0020_By	{822c78e3-1ea9-4943-b449-57863ad33ca9}	Text
Document Created By	Created_x0020_By	{4dd7e525-8d6b-4cb4-9d3e-44ee25f973eb}	Text
File Type	File_x0020_Type	{39360f11-34cf-4356-9945-25c44e68dade}	Text
HTML File Type	HTML_x0020_File_x0020_Type	{0c5e0085-eb30-494b-9cdd-ece1d3c649a2}	Text
Source Url	_SourceUrl	{c63a459d-54ba-4ab7-933a-dcf1c6fadec2}	Text
Shared File Index	_SharedFileIndex	{034998e9-bf1c-4288-bbbd-00eacfc64410}	Text
Edit Menu Table Start	_EditMenuTableStart	{3c6303be-e21f-4366-80d7-d6d0a3b22c7a}	Computed
Edit Menu Table End	_EditMenuTableEnd	{2ea78cef-1bf9-4019-960a-02c41636cb47}	Computed
Name	LinkFilenameNoMenu	{9d30f126-ba48-446b-b8f9-83745f322ebe}	Computed
Name	LinkFilename	{5cc6dc79-3710-4374-b433-61cb4a686c12}	Computed
Type	DocIcon	{081c6e4c-5c14-4f20-b23e-1a71ceb6a67c}	Computed
Server Relative URL	ServerUrl	{105f76ce-724a-4bba-aece-f81f2fce58f5}	Computed
Encoded Absolute URL	EncodedAbsUrl	{7177cfc7-f399-4d4d-905d-37dd51bc90bf}	Computed
Name	BaseName	{7615464b-559e-4302-b8e2-8f440b913101}	Computed
File Size	FileSizeDisplay	{78a07ba4-bda8-4357-9e0f-580d64487583}	Computed
Property Bag	MetaInfo	{687c7f94-686a-42d3-9b67-2782eac4b4f8}	Lookup
Level	_Level	{43bdd51b-3c5b-4e78-90a8-fb2087f71e70}	Integer
Is Current Version	_IsCurrentVersion	{c101c3e7-122d-4d4d-bc34-58e94a38c816}	Boolean
Select	SelectTitle	{b1f7969b-ea65-42e1-8b54-b588292635f2}	Computed
Select	SelectFilename	{5f47e085-2150-41dc-b661-442f3027f552}	Computed
Edit	Edit	{503f1caa-358e-4918-9094-4a2cdc4bc034}	Computed
owshiddenversion	owshiddenversion	{d4e44a66-ee3a-4d02-88c9-4ec5ff3f4cd5}	Integer
UI Version	_UIVersion	{7841bf41-43d0-4434-9f50-a673baef7631}	Integer
Version	_UIVersionString	{dce8262a-3ae9-45aa-aab4-83bd75fb738a}	Text
Instance ID	InstanceID	{50a54da4-1528-4e67-954a-e2d24f1e9efb}	Integer
Order	Order	{ca4addac-796f-4b23-b093-d2a3f65c0774}	Number
GUID	GUID	{ae069f25-3ac2-4256-b9c3-15dbc15da0e0}	Guid
Workflow Version	WorkflowVersion	{f1e020bc-ba26-443f-bf2f-b68715017bbc}	Integer
Workflow Instance ID	WorkflowInstanceID	{de8beacf-5505-47cd-80a6-aa44e7ffe2f4}	Guid
Source Version (Converted Document)	ParentVersionString	{bc1a8efb-0f4c-49f8-a38f-7fe22af3d3e0}	Lookup
Source Name (Converted Document)	ParentLeafName	{774eab3a-855f-4a34-99da-69dc21043bec}	Lookup
Title	Title	{fa564e0f-0c70-4ab9-b863-0177e6ddd247}	Text
Template Link	TemplateUrl	{4b1bf6c6-4f39-45ac-acd5-16fe7a214e5e}	Text
Html File Link	xd_ProgID	{cd1ecb9f-dd4e-4f29-ab9e-e9ff40048d64}	Text
Is Signed	xd_Signature	{fbf29b2d-cae5-49aa-8e0a-29955b540122}	Boolean
Merge	Combine	{e52012a0-51eb-4c0c-8dfb-9b8a0ebedcb6}	Computed
Relink	RepairDocument	{5d36727b-bcb2-47d2-a231-1f0bc63b7439}	Computed

 Custom list fields 

Display Name	Internal Name	GUID	Type
ID	ID	{1d22ea11-1e32-424e-89ab-9fedbadb6ce1}	Counter
Content Type ID	ContentTypeId	{03e45e84-1992-4d42-9116-26f756012634}	ContentTypeId
Content Type	ContentType	{c042a256-787d-4a6f-8a8a-cf6ab767f12d}	Text
Title	Title	{fa564e0f-0c70-4ab9-b863-0177e6ddd247}	Text
Modified	Modified	{28cf69c5-fa48-462a-b5cd-27b6f9d2bd5f}	DateTime
Created	Created	{8c06beca-0777-48f7-91c7-6da68bc07b69}	DateTime
Created By	Author	{1df5e554-ec7e-46a6-901d-d85a3881cb18}	User
Modified By	Editor	{d31655d1-1d5b-4511-95a1-7a09e9b75bf2}	User
Has Copy Destinations	_HasCopyDestinations	{26d0756c-986a-48a7-af35-bf18ab85ff4a}	Boolean
Copy Source	_CopySource	{6b4e226d-3d88-4a36-808d-a129bf52bccf}	Text
owshiddenversion	owshiddenversion	{d4e44a66-ee3a-4d02-88c9-4ec5ff3f4cd5}	Integer
Workflow Version	WorkflowVersion	{f1e020bc-ba26-443f-bf2f-b68715017bbc}	Integer
UI Version	_UIVersion	{7841bf41-43d0-4434-9f50-a673baef7631}	Integer
Version	_UIVersionString	{dce8262a-3ae9-45aa-aab4-83bd75fb738a}	Text
Attachments	Attachments	{67df98f4-9dec-48ff-a553-29bece9c5bf4}	Attachments
Approval Status	_ModerationStatus	{fdc3b2ed-5bf2-4835-a4bc-b885f3396a61}	ModStat
Approver Comments	_ModerationComments	{34ad21eb-75bd-4544-8c73-0e08330291fe}	Note
Edit	Edit	{503f1caa-358e-4918-9094-4a2cdc4bc034}	Computed
Title	LinkTitleNoMenu	{bc91a437-52e7-49e1-8c4e-4698904b2b6d}	Computed
	LinkFilenameNoMenu
Title	LinkTitle	{82642ec8-ef9b-478f-acf9-31f7d45fbc31}	Computed
Select	SelectTitle	{b1f7969b-ea65-42e1-8b54-b588292635f2}	Computed
Instance ID	InstanceID	{50a54da4-1528-4e67-954a-e2d24f1e9efb}	Integer
Order	Order	{ca4addac-796f-4b23-b093-d2a3f65c0774}	Number
GUID	GUID	{ae069f25-3ac2-4256-b9c3-15dbc15da0e0}	Guid
Workflow Instance ID	WorkflowInstanceID	{de8beacf-5505-47cd-80a6-aa44e7ffe2f4}	Guid
URL Path	FileRef	{94f89715-e097-4e8b-ba79-ea02aa8b7adb}	Lookup
Path	FileDirRef	{56605df6-8fa1-47e4-a04c-5b384d59609f}	Lookup
Modified	Last_x0020_Modified	{173f76c8-aebd-446a-9bc9-769a2bd2c18f}	Lookup
Created	Created_x0020_Date	{998b5cff-4a35-47a7-92f3-3914aa6aa4a2}	Lookup
Item Type	FSObjType	{30bb605f-5bae-48fe-b4e3-1f81d9772af9}	Lookup
Effective Permissions Mask	PermMask	{ba3c27ee-4791-4867-8821-ff99000bac98}	Computed
Name	FileLeafRef	{8553196d-ec8d-4564-9861-3dbe931050c8}	File
Unique Id	UniqueId	{4b7403de-8d94-43e8-9f0f-137a3e298126}	Lookup
ProgId	ProgId	{c5c4b81c-f1d9-4b43-a6a2-090df32ebb68}	Lookup
ScopeId	ScopeId	{dddd2420-b270-4735-93b5-92b713d0944d}	Lookup
File Type	File_x0020_Type	{39360f11-34cf-4356-9945-25c44e68dade}	Text
HTML File Type	HTML_x0020_File_x0020_Type	{4ef1b78f-fdba-48dc-b8ab-3fa06a0c9804}	Computed
Edit Menu Table Start	_EditMenuTableStart	{3c6303be-e21f-4366-80d7-d6d0a3b22c7a}	Computed
Edit Menu Table End	_EditMenuTableEnd	{2ea78cef-1bf9-4019-960a-02c41636cb47}	Computed
Name	LinkFilenameNoMenu	{9d30f126-ba48-446b-b8f9-83745f322ebe}	Computed
Name	LinkFilename	{5cc6dc79-3710-4374-b433-61cb4a686c12}	Computed
Type	DocIcon	{081c6e4c-5c14-4f20-b23e-1a71ceb6a67c}	Computed
Server Relative URL	ServerUrl	{105f76ce-724a-4bba-aece-f81f2fce58f5}	Computed
Encoded Absolute URL	EncodedAbsUrl	{7177cfc7-f399-4d4d-905d-37dd51bc90bf}	Computed
File Name	BaseName	{7615464b-559e-4302-b8e2-8f440b913101}	Computed
Property Bag	MetaInfo	{687c7f94-686a-42d3-9b67-2782eac4b4f8}	Lookup
Level	_Level	{43bdd51b-3c5b-4e78-90a8-fb2087f71e70}	Integer
Is Current Version	_IsCurrentVersion	{c101c3e7-122d-4d4d-bc34-58e94a38c816}	Boolean