Posts Tagged SharePoint 2010

‘Microsoft.SharePoint.Client.Form’ does not contain a constructor that takes 0 arguments – SharePoint 2010 Client Object Model

To fix this issue, just click here. Thanks, R../

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How to get the list of folders and subfolders from a SharePoint document library

There are many ways to get files & folder details from SharePoint (programmatically) but my manager asked me to provide the list of folders and sub folders from a SharePoint document library urgently. So I wanted get an idea to provide the information quickly, after spending few minutes on the web and found this post (I know about the DIR command but didn’t think about the SharePoint UNC). Yes, we can get the details using DOS command with UNC path. 🙂

First of all, we want to know about UNC and the DIR command.

UNC: Universal Naming Convention, a format for specifying the location of resources on a local-area network (LAN). Read more about this here.

Syntax: \\<servername>\<sharename>\<directory>

DIR: Display a list of files and subfolders. Read more about this here.

Syntax: DIR [pathname(s)] [display_format] [file_attributes] [sorted] [time] [options]

To get SharePoint UNC path, just remove http: from the SharePoint url and replace the forward slash with backslash. So my document library path is:

http://ServerName/doccenter/Administration/StepBiStep

then it’s UNC will be like this:

\\ServerName\doccenter\Administration\StepBiStep

Okay.. we will see the steps here, I have created a document library (StepBiStep) for testing purpose.

Step 1: Open the cmd prompt

Step 2: type the following statement in the command-line and press Enter key.

DIR /B /A:D / S [UNC Path] > [File Name]

/B -Bare format (no heading, file sizes or summary)
/A:D -Folder file attributes
/S -Include all subfolders
[UNC Path] -The path, which you want to get all the folders and subfolders
[File Name] -A text file name to store the folder details

So our command is looks like this, I have used a text file (FolderLists.txt, which is located in C: drive) to store the details.

DIR /b /A:D /S \\ServerName\doccenter\Administration\StepBiStep > c:\FolderLists.txt

Step 3: It will take few minutes to generate the list. You can open in a Notepad and see..!.

That’s all guys, enjoy!  I do welcome your comments. Please leave them here! 🙂

References:

1. http://ss64.com/nt/dir.html

2. http://www.sharepointgeoff.com/how-to-quickly-list-documents-and-sub-folders-from-a-document-library-in-sharepoint-to-a-file/

3. http://technet.microsoft.com/en-us/library/cc939978.aspx

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The type or namespace name ‘SharePoint’ does not exist in the namespace ‘Microsoft’ (are you missing an assembly reference?) – SharePoint 2010 Client Object Model dlls

When I started using the Client Object model (Client OM) in SharePoint 2010, I have got this simple error and I just want to share with you in this blog. Following was my develpment environment.

  • Windows 7, 64 bit
  • Console Application Visual Studio 2010
  • Added Client Object Model references (Microsoft.SharePoint.Client.dll & Microsoft.SharePoint.Client.Runtime.dll) to the solution

After setting up all the above, I was trying to add the client reference to the code ‘using Microsoft.SharePoint.Client;‘and then I have got the following error and warnings 🙂

The text format of error is:

"The type or namespace name 'SharePoint' does not exist in the namespace 'Microsoft' (are you missing an assembly reference?)"

It’s an obvious error message and the reason of this error is:

SharePoint 2010 does not support .Net 4.0 in default and Visual Studio 2010 default framework is .Net 4.0.

Here are the simple steps to fix this:

Step 1: Right click on the project –> Properties

Step 2: Change the Target framework –> .Net Framework 3.5

Step 3: Warning message will be popping up, click Yes.

That’s all. Happy Coding..!

Please Note: If you use Windows Application then you will be getting an other error message! 😦 To solve this issue just click here.

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This workbook cannot be opened because it is not stored in an Excel Services Application trusted location – SharePoint 2010

One of my colleagues sent me an email saying that he is getting this error (see below) whenever he tried to open an excel workbook. I just clicked the same file in the same location and I am able to open it. 🙂

But when I click on the excel file drop down –> View in Browser then I also got the same error.

The text format of the error is:

This workbook cannot be opened because it is not stored in an Excel Services Application trusted location.

To create an Excel Services Application trusted location, contact your system administrator.

According to the error message, obviously we need to add the document library path to Trusted File Locations in the Central Administration. So we will see the steps here.

Step 1: Go to Central Administration –> Manage service applications under Application Management

Step 2: Then click on the Excel Services Application

Step 3: Click on the Trusted File Locations

Step 4: Just click Add Trusted File Location under Excel Services Application

Step 5: Add the document library url (OR file location) on the Address box and check the  Children trusted check box –> Click ok

Please note: Don’t use like http://server:1010/documentlibrary1/forms/default.aspx instead of http://server:1010/documentlibrary1

If you use SSL (Secure Sockets Layer)/HTTPS connections, just add  https:// on the address.

If you want to read more about this just click here. The similar problem in SharePoint 2007 also, you can find the solution in my previous post.

After completing this configuration, you might get the “The workbook cannot be opened” error, if you want to get the solution just read here. 🙂

References:

1. http://sharepointknowledgebase.blogspot.ca/2011/12/excel-services-sharepoint-2010-trusted.html

2. http://technet.microsoft.com/en-us/library/ff191194.aspx

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Content Editor Web Part (CEWP) & JavaScript duplicating entries in SharePoint 2010

Recently we have migrated our SharePoint 2007 application to SharePoint 2010 and we also had manually configured few web parts in the new environment. Most of the web parts were working perfectly like sharepoint 2007 but one content editor web part which shows the weather forecast had some wired repeating behavior! 😦

Here is the weather forecast web part in the 2007 which has JavaScript to update the weather from their web site.

The JavaScript code in the Source editor:

I have created the CEWP in 2010 and paste the source code in to the editor.

and Publish the page, It is working fine no? but not really..!

Whenever I edit the page, the web part is duplicating the weather widget like this!

After spending few minutes I have found the solution in this post, actually SharePoint 2010 does not support the JavaScript directly into the source editor. So we cannot copy and paste the JavaScript to the CEWP editor instead, we have to create the scripts as a txt file (paste into a Notepad and save), upload into the SharePoint and then pointing that file as the source of CEWP.

Step 1: Open a Notepad and paste the source code

Step 2: Upload the txt file into SharePoint

Step 3: Get the url path of the txt file and paste it on the content link property of the content editor pane on the right side and click ok.

That’s all. No duplication probs any more. Happy Migrating..!

Thanks. R./

References:

1. http://sharepointadam.com/2010/08/31/insert-javascript-into-a-content-editor-web-part-cewp/

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Turn on detailed error messages in SharePoint 2007 /2010

This is not really new but currently I am working on some customized web parts, so I need to turn on/off the detailed error messages when I need to fix some hectic problems on my development environment. There are many posts regarding this, but I wanted to keep my own post for my future references. 😉

Normally SharePoint shows custom error messages to the users such as “An unexpected error has occurred” but this is not going to help, so we need to know the detailed ASP.NET error message to fix the problem. Here are the steps to turn off custom error messages.

Step 1: Go to the SharePoint host server and navigate to the Virtual Directories folder. Normally this is available in this path “C:\Inetpub\wwwroot\wss\VirtualDirectories”

Step 2: Find the web.config and get the backup for the safety purpose

Step 3: Open the web.config file using Visual Studio OR Notepad

Step 4: Find the “CallStack” and change the value to “true” instead of “false”

Step 5: Find the “CustomErrors” and change the value to “Off” instead of “On”

Step 6: Save and close the web.config, refresh the page then you will get the detailed (wired) error message. Time to fix this huh? 🙂

Error message before turning on:

Error message after turning on:

MSDN reference shows the “CustomErrors” values can be one of these:

Value Description
On Specifies that custom errors are enabled. The custom errors are shown to the remote clients and to the local host.
Off Specifies that custom errors are disabled. The detailed ASP.NET errors are shown to the remote clients and to the local host.
RemoteOnly Specifies that custom errors are shown only to the remote clients, and that ASP.NET errors are shown to the local host.

If you want, you can also set the “CustomErrors” value to “RemoteOnly” to show custom errors only to the remote clients.

R./

References:

1. http://davidkvas.blogspot.com/2011/05/turning-on-detailed-error-messages-in.html

2. http://msdn.microsoft.com/en-us/library/h0hfz6fc.aspx

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