Sridhar's Blog : Code Samples

HowTo: Create a quizzing application with SharePoint 2007

sridhara — Tue, 16 Dec 2008 00:44:00 GMT

With SharePoint 2007 "Survey" list template, I recently created a quizzing application. The thing with survey list is that it stack ranks the questions taking into account how many of the respondents favored each options within that question. But for...(read more)

How do I use SecureString type in SharePoint 2007?

sridhara — Fri, 17 Oct 2008 00:18:00 GMT

SecureString is the type that's used for passwords in SharePoint 2007. You might find its use when you are automating some "higher level" administration operation (like creating a web application for example). How do you use it is shown below: 1: private...(read more)

Using Post Caching Substitution in SharePoint 2007 Web Parts

sridhara — Wed, 13 Aug 2008 03:16:00 GMT

There are good number of articles that explains the different caching option Microsoft Office SharePoint Server 2007 provides and ways to leverage them to achieve better site performance. However, there are scenarios where you might want to implement...(read more)

Wildcard Search in SharePoint

sridhara — Wed, 30 Jul 2008 03:36:00 GMT

Being able to perform wildcard search is probably an area that's missing in out of the box search in SharePoint. Here's a small web part sample you can use to perform wildcard search in MOSS 2007 (and it can be engineered backward to fit into SharePoint...(read more)

"Failed to verify user permissions" error when using DspSts.asmx web service

sridhara — Wed, 30 Jul 2008 00:42:00 GMT

I recently handled a case where the customer sees a "Failed to verify user permissions" error when accessing the DspSts.asmx web service in SharePoint 2007. Below is the code similar to what they were using to invoke the Query method of DspSts.asmx web...(read more)

The buzz with "UrlQueryString" in SharePoint navigation

sridhara — Thu, 24 Jul 2008 15:07:00 GMT

SharePoint's navigation APIs have a property exposed that allows us to set query string properties for a URL. Sadly, but not surprisingly, this only works when root site collection has publishing feature enabled. Reason is simple... One a WSS only OR...(read more)

FBA and User Display Names in SharePoint 2007

sridhara — Mon, 14 Jul 2008 04:01:00 GMT

If you have been working with FBA for a while, you might have noticed that the user name displayed in the Welcome control shows the account name of the FBA user. This is because of the field the welcome control is mapped to. As shown here, the welcome...(read more)

Why are my SharePoint Groups drop-down disabled?

sridhara — Mon, 07 Jul 2008 21:03:00 GMT

This was an interesting issue. The problem a customer reported was that when they wanted to add a user to a SharePoint Group, the "Add users to a SharePoint group" drop-down was disabled. On investigation, it was found the customer...(read more)

What happened to my My Links Web Part?

sridhara — Fri, 27 Jun 2008 10:55:00 GMT

Well, did you add a link like "file://C:/folder1/folder2"? In one customer's environment this was the exact issue. A user added some file system link like the above and ended up with the following symptoms: 1. The user couldn't add the "My Links" web...(read more)

What permissions are behind the permission levels (roles) in SharePoint

sridhara — Fri, 27 Jun 2008 05:42:00 GMT

Recently, I was involved in a support request where I had to find out what SPBasePermissions are assigned behind permission level in SharePoint using SharePoint OM code. First some basics about permission level and base permissions. If you are in your...(read more)

Create and Publish web pages in Publishing SharePoint sites programmatically

sridhara — Sat, 21 Jun 2008 19:22:00 GMT

Microsoft.SharePoint.Publishing is the assembly that we need to use to get pages created and published. A sample is provided below: using ( SPSite site = new SPSite ( "http://moss" )) { using ( SPWeb web = site.OpenWeb()) { PublishingSite pSite = new...(read more)

"The security validation for this page is invalid" error when updating objects through SharePoint object model

sridhara — Sat, 21 Jun 2008 16:51:00 GMT

This error is often encountered when SharePoint OM is used to update site/web/list objects from within a web context. Some thing so basic as the code below could fail: using ( SPSite site = new SPSite ( "http://moss" )) { using ( SPWeb web = site.OpenWeb())...(read more)

Programming navigation in WSS 3.0

sridhara — Sat, 07 Jun 2008 18:36:00 GMT

Modifying navigation elements through code is quite tricky in WSS 3.0. Here are few scenarios, I’ve tried to cover that I think will be helpful in playing around with WSS 3.0 navigation elements. I’ve used the top navigation bar in these examples. But...(read more)

Add/Update "sealed" properties in SharePoint lists

sridhara — Sat, 07 Jun 2008 15:10:00 GMT

There’s always a question about updating properties in a list in SharePoint. Specifically, properties like “Modified By”, “Modified” etc., WSS 3.0 provides greater flexibility for enabling developers to do this with ease. Usually, this scenario would...(read more)

GetWebTemplate web method does not return & AddList web method does not recognize my custom list templates!

sridhara — Sat, 07 Jun 2008 11:01:00 GMT

When you use the “GetWebTemplate” web method provided through webs.asmx web service, you’ll notice that the custom list templates you might have created is not available in the collection returned. This is because the OM call that happens behind-the-wires,...(read more)