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SharePoint Foundation is the platform for all on-premises products in the SharePoint family. Questions having this tag should be specific to SharePoint Foundation and not SharePoint Online or other license SKUs of SharePoint Server. It contains all of the core functionality and architecture drawn on by the commercial versions of the package, but is free to download

12 votes
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After retracting webpart solution webparts still showing up

When you deploy a solution with a WebPart it deploys three things: The dll with the web part A SafeControl entry to be inserted into web.config A .webpart (or .dwp) file with configuration settings …
Per Jakobsen's user avatar
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8 votes
Accepted

Change default site in Sharepoint foundation

If Publico is a Document library (or a module you have added) then it's easy. Using SharePoint Designer Open the site using SPD Click All Files (at the bottom of Navigation) Click your Document lib …
Per Jakobsen's user avatar
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6 votes
Accepted

why we need to use web.AllowUnsafeUpdates = true, we don't use these things with traditional...

There is a couple of reasons for this: SharePoint is from companies point of view a Microsoft product, so if there is a security risk then it's seen as Microsofts fault. This is the reason for Micro …
Per Jakobsen's user avatar
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5 votes
Accepted

Protect wsp file from Reverse Engineering

If you don't want other people to be able to Reverse Engineer the source code to DLLs you're giving them, then you should obfuscate the DLL. See .Net Obfuscation for some suggestions. But before goin …
Per Jakobsen's user avatar
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4 votes
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query all list items in site collection, any way to optimise this code or make it better?

Use SPSiteDataQuery which is created exactly for this. It'll not optimize only the ?? parts but all of the traversing If there is many items and you're using SharePoint server then you should use Co …
Per Jakobsen's user avatar
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4 votes
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How to access web part properties from the web part user control

The User Control is being inserted into the control collection of the "real" Web Part, this enables you to get hold of the "real" Web Part though the Parent property of the User Control. If all you wa …
Per Jakobsen's user avatar
  • 32.4k
4 votes

SharePoint site open in Mozila and Chrome but did not allow me to open in internet explorer

IE will automatically log you in as the current Windows user if the site is in the Intranet zone in IE either by explicit reference in the Internet options|Security|Local Intranet|Sites|Advanced list …
Per Jakobsen's user avatar
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4 votes
Accepted

Can you disable email notifications for a blog post saved as a draft?

Create a view only showing published items and change the alerts to be on changes to an item that appears in that view. Note that the list needs at least one view with a filter for that option to a …
Per Jakobsen's user avatar
  • 32.4k
3 votes

safeControl and versioning in SharePoint

The general recommendation is that you never update the AssemblyVersion of WebPart assemblies, because you have to update: The SafeControl entries in web.config (for letting it run) The .webpart fil …
Per Jakobsen's user avatar
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3 votes

ClientContext and sharepoint

When using the Silverlight Client Object Model you have two way of getting a valid ClientContext. Either you specify the url of the SharePoint site to work with in the constructor to a ClientContext …
Per Jakobsen's user avatar
  • 32.4k
3 votes

I'm trying to understang how AJAX and Sharepoint play together

SharePoint works great with AJAX. Two of the great improvements for SharePoint 2010 was Client Side Object Model and REST interface which makes JavaScript development against SharePoint a lot easier t …
Per Jakobsen's user avatar
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3 votes
Accepted

SharePoint Root Site name show

In a sandboxed solution you can only access the current site collection, not one specified by URL. To get the title of the RootWeb of the current site collection use: currentTitle.Text = SPContext.C …
Per Jakobsen's user avatar
  • 32.4k
3 votes

CriticalExceptionCount in SharePoint 2010

When using Sandboxed solutions in SharePoint 2010 the code runs in a separate process to isolate the "normal" environment from the sandboxed code. Each site collection is allocated a number of points …
Per Jakobsen's user avatar
  • 32.4k
3 votes
Accepted

Working with data imported from Excel into a SharePoint List

You can't foced special data types when importing or change type of existing columns. Your best option is probably to: Create a new column for the name with the right type Create a Datasheet View f …
Per Jakobsen's user avatar
  • 32.4k
3 votes
Accepted

How to improve performance of lists with multi-lookups

The only option is not to show these columns in the view. If you need to show the data and have high performance, then you might consider adding a readonly text column to show and have an event recei …
Per Jakobsen's user avatar
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