SHAREPOINT: One of more field types are not installed properly

Claudio Barba — Thu, 24 Sep 2009 09:44:22 +0000

If you get this error while debugging your Sharepoint application, you have probably to know that you must call the fields with their INTERNAL NAME, which can be different from the name you see on labels on the site.

How can you find the correct internal name?
You can go to a page in which you have the possibility to edit all the fields and then look in the page source for the fieldname; otherwise you can also order a view by the specific field and then see what is written in the url.

I got this problem while trying to use the method UpdateListItems
in the lists.asmx Sharepoint webservices.
Here is the code I used:

XmlDocument doc = new XmlDocument();
XmlElement newFile = doc.CreateElement(”Batch”);
newFile.SetAttribute(”OnError”, “Return”);

// as field name, we must pass the INTERNAL NAMES of the fields, example: Title is the internal name of the field Subject

newFile.InnerXml = “” +
“New” +
“” + NewName + “” + // Title is the internal name of Subject
“” + _client + “” +
“” + _listtype + “” + //internal name of List type
“” + _country + “” +
“” + _datext + “” +
“”;
XmlNode returnValue = WS.UpdateListItems(”xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx”, newFile);

Hope this will help you!

EASY REGULAR EXPRESSIONS IN C#

Claudio Barba — Thu, 24 Sep 2009 09:41:44 +0000

I really love using regular expressions.
It’s so easy to check strings… for example if you want only alphanumeric or only numbers or a very specific format like two letters, one point, one number and a #, in the specific order.
In my opinion, it’s highly difficult to create the reg exp from scratch.
I have found a very good shareware program which build and test them for me. You can find it here.

Once you have your regular expression, how can you use it in your code?
Let’s say you just need to check if a string is composed only by alphanumeric chars.

Here’s a bit of C# code:

string mystring = “HELLO”;
string regExpString = “^\\w+$”;

if (System.Text.RegularExpressions.Regex.IsMatch( mystring , regExpString))
//here mystring contains only alphanumerics
else
// here mystring contains also something else

So… isn’t it easy?

Cyberactiva web development and optimisation » C#

SHAREPOINT: One of more field types are not installed properly

EASY REGULAR EXPRESSIONS IN C#