SharePoint 2010 is coming

An overview video has been posted recently on the new SharePoint 2010 highligths :

For overview:

http://sharepoint.microsoft.com/2010/Sneak_Peek/Pages/Overview-Video.aspx

For ITs:

http://sharepoint.microsoft.com/2010/Sneak_Peek/Pages/IT-Pro-Video.aspx

For developers :

http://sharepoint.microsoft.com/2010/SNEAK_PEEK/Pages/Developer-Video.aspx

It's a great one! Can't wait!!

Send a document by email (from a document library)

I was about to write a blog about how to create this custom action but obviously someone did it before. Cheers to Bjørn Furuknaps who explains it well on his blog !

Useless to write another one but usefull to reference its blog !

MOSS Administrator

I was bored of using tools for MOSS administration cause, on all of them, something was missing, so I decided to make mine...and so far I'm quite happy with the result.I have created a codeplex project for this one : http://mossadministration.codeplex.com/

I splitted the tool in three part : "Solutions" , "Features" and "Site hierarchy"

The first one, "Solutions", allows (so far) the user to :

• Install solution
• Uninstall solution
• Deploy solutions
• Retract solution
  
• GetInformations on his farm and to get some information that the administration site doesn't give (information that you can also have using stsadm command lines..

The second one "Features"list everything about features :

• You can check basic information about your features. (order by scope)
  
• You can see on which element each of the feature is deployed (For instance, you can see all the sites on which you rfeature is deployed)
  
• A usefull functionnality is to be able to deploy a feature in a wider scope than the original scope (for example, deploying w site feature on all site of a webapplication (or even a farm!))
• You can activate Feature on One or some elements.
  

The third one is the big one :) It gives you, many information about your farm structure (from object ids, to content DBs for web apps, passing by activated feature listing...) and much much more. You can interact with object. For instance, you can set read or write lock mode.

Of course cause, it's a big thing, so far, not everything have been developped, but i work on it. I'll keep you informed.

The codeplex project for this : http://mossadministration.codeplex.com/

Some screen shot (official version so far : 0.2). I hope to

• Features tab :
  
• WSP Solutions tab :
  
  

Replace a webpart by another

In My "problem of the day" list, I have been asked whether it was possible or not to replace a webpart by another programatically. And obviously I have been asked to set the property values for the news Webpart.... So, I made a small tool for that.

I have created a Codeplex for this : http://webpartreplacer.codeplex.com The next versions will be uploaded there soon !!!

Basically, How does it work? On a specific application, I try to load the assembly that contains the webparts (source and destination) using reflection :

System.Reflection.Assembly asm = System.Reflection.Assembly.Load(AssemblySrc);
System.Web.UI.WebControls.WebParts.WebPart wpS = (System.Web.UI.WebControls.WebParts.WebPart) asm.CreateInstance(ClassSrc); 

Then I look inside the Default page of each web and subweb trying to find the webpart (by checking the type of each webparts on the page) and if I find it, I replace the webpart using the SPLimitedWebPartManager.

I know that I should also parse all the document libraries to find other webpart pages in order to parse them as well... But in my current project, it wasn't a need, and I was kind of lazy!

Below is the iteration how I check whether the webparts on the page are to be replaced.

public void ReplaceWebpart(SPWeb web)
{ 
 try
 {

     SPLimitedWebPartManager theMan =
             web.Files["Default.aspx"].GetLimitedWebPartManager(System.Web.UI.WebControls.WebParts.PersonalizationScope.Shared);
     System.Reflection.Assembly asm = System.Reflection.Assembly.Load(AssemblySrc);
     System.Web.UI.WebControls.WebParts.WebPart wpS = (System.Web.UI.WebControls.WebParts.WebPart) asm.CreateInstance(ClassSrc);     
     System.Reflection.Assembly asmD = System.Reflection.Assembly.Load(AssemblyDest);
     for (int i = 0; i < theMan.WebParts.Count; i++)
     {

         System.Web.UI.WebControls.WebParts.WebPart wp = theMan.WebParts[i];  
         if (wp.GetType().Equals(wpS.GetType()))
         {
             System.Web.UI.WebControls.WebParts.WebPart wpD = (System.Web.UI.WebControls.WebParts.WebPart)asmD.CreateInstance(ClassDest);
             wpD.Title = wp.Title;                                     
             theMan.AddWebPart(wpD, theMan.GetZoneID(wp), wp.ZoneIndex);             
             theMan.WebParts[wpD.ID].
             theMan.DeleteWebPart(wp);
             Result++;
             i--;
         }
     }
     foreach (SPWeb Sweb in web.Webs)
     {
         ReplaceWebpart(Sweb);
         Sweb.Dispose();
     }
 }
 catch (Exception ex)
 {
 }
 finally
 {
 }
}

This is the part 1 of the replacement. Now let's say that we want to go futher. Why not trying to specify some properties on this new webpart?

OK, I have created a ObjectCollection object containing a list of KeyValuePair (simply by taking the Items attribute of a listBox !

Then before the AddWebPart([...]) code line, I have added the following code :

foreach (Object LstItem in PropCollection)
{
   try
{
  System.Reflection.PropertyInfo prop = wpD.GetType().GetProperty(((KeyValuePair<String, String>)LstItem).Key);
  if (prop != null)
  {                                      
     String[] propValues = new String[1] { ((KeyValuePair<String, String>)LstItem).Value };                              
     if (prop.PropertyType.Equals(String.Empty.GetType()))
     {
        prop.SetValue(wpD,((KeyValuePair<String, String>)LstItem).Value,null);
     }
     else
     {
        Type[] types = new Type[1] { String.Empty.GetType() };
        prop.SetValue(wpD, prop.PropertyType.GetMethod("Parse", types, null).Invoke(prop, propValues), null);
     }
  }
}
  catch (Exception exceptionProp)
{}
}

What happens here? We just try to get The property we try to set contained in our newly instanced WebPart. If found, we try to Use the Parse method of this property (Yes this only work with simple types (as Int32, Bool, String), and then we invoke it! Simple!!

That's it. You just have to make an iteration on each SPSite of you application and here we are!
Once again, be aware that this code only checks the default.aspx page !!
Sorry for that!!

Go to check in the codeplex project.

Bug on XML Site definition

On a Onet.xml Site definition, we wanted to set the RowLimit (http://msdn.microsoft.com/fr-fr/library/ms428643.aspx) for announcement list. So we set :

<View List="$Resources:core,lists_Folder;/$Resources:core,announce_Folder;"
         BaseViewID="0" 
        WebPartZoneID="Left">
       <RowLimit Paged="TRUE">5</RowLimit>
</View>

but, it didn't work...WTF??

How sweet it is when you try to use a "standard" attribute and when you realize that...Gasp It hasn't been implemented By MS (That was the real answer that they gave us!)

We have spent a few days on this bug, so I just blog it hoping that the one who is looking for solution find it!! There is no solutions but creating a feature that will replace the announcementList feature. This feature that you can call "CustomeAnnouncementList" will be a copy/Paste of the basic Anouncement List feature amended (in the element.xml file) with the rowlimit attribute inside. Then you have to activate this feature on all sites. Bingo! Of course, if you don't want to see 2 anouncement list in your available lists, you will also have to deactivate the old feature.

Cheers & Good luck

Dynamically creat a SPView with checkbox that will be display in a dynamically created ListViewe

Hi,

My problem was this one :

"I need to display on a specific page the default view of a list, BUT beside each items of this list must be displayed a checkbox in order to be able to select items on this list"
huuu....
The solution I chose was to recreate a clone of the defaultview that will never be displayed to the users but that will be selected as SPView of the ListView I create on my page.
Here we go...

1/ My Page takes in parameter the ID of the list I'm working on, i call the parameter "List":

Guid ListId = new Guid(this.Page.Request["List"]);

2/ Then whenever I reach the page, i check whether the view already exists, if not i create it cloning the default view and adding to it a checbox field. If the clone of the actual defaultview exists i just use it! Easy! In my code below, the listview object is called Select_List

bool creatingView = false;
SPView newView = null;
SPSecurity.RunWithElevatedPrivileges(delegate()
{
using (SPSite Mysite = new SPSite(siteID))
{
SPWeb MyWeb = Mysite.OpenWeb(webID);
MyWeb.AllowUnsafeUpdates = true;
SPList MyList = MyWeb.Lists[ListId];
foreach (SPView view in MyList.Views)
{
   if (view.Title.Equals(MyList.DefaultView.Title+ "_CloneForSelect"))
   {
      newView = view;
   }
}
if (newView == null)
{
   if (!MyList.Fields.ContainsField("Select"))
   {
      MyList.Fields.AddFieldAsXml("<Field Type=\"Computed\"   ReadOnly=\"TRUE\" Name=\"ListItemSelection\" DisplayName=\"Select\" Sortable=\"FALSE\" Filterable=\"FALSE\" EnableLookup=\"FALSE\" SourceID=\"http://schemas.microsoft.com/sharepoint/v3\" StaticName=\"ListItemSelection\">" +"<FieldRefs> <FieldRef Name=\"ID\" /> </FieldRefs>" + "<DisplayPattern> <HTML><![CDATA[<input id=\"chk_select]]></HTML><Column Name=\"ID\" HTMLEncode=\"TRUE\" /><HTML><![CDATA[\" name=\"chk_select\" type=\"checkbox\" ]]></HTML>" + "<HTML><![CDATA[LItemId=\"]]></HTML>" + "<Column Name=\"ID\" HTMLEncode=\"TRUE\" />" + "<HTML><![CDATA[\"/> ]]></HTML>" + "</DisplayPattern></Field>");
   }
   SPFieldComputed fieldComp = (SPFieldComputed)MyList.Fields["Select"];
   newView = MyList.DefaultView.Clone(MyList.DefaultView.Title + "_CloneForSelect", 1000, true, false);
   newView.Hidden = true;
   newView.Scope = SPViewScope.FilesOnly;
   newView.ViewFields.Add(fieldComp);
   newView.Update();
   creatingView = true;
}
MyWeb.Dispose();
}
});
if (!creatingView)
{
Select_List.ViewId = newView.ID.ToString();
}
else
{
Response.Write("");
}
Select_List.ListId = this.Page.Request["List"]; 

Now, let me explain the code a little bit.

1/ How to create a column Checkbox in a list?

It's quite tricky cause you must create the column using a CAML definition.

 if (!MyList.Fields.ContainsField("Select"))
{
MyList.Fields.AddFieldAsXml("<Field Type=\"Computed\"   ReadOnly=\"TRUE\" Name=\"ListItemSelection\" DisplayName=\"Select\" Sortable=\"FALSE\" Filterable=\"FALSE\" EnableLookup=\"FALSE\" SourceID=\"http://schemas.microsoft.com/sharepoint/v3\" StaticName=\"ListItemSelection\">" +"<FieldRefs> <FieldRef Name=\"ID\" /> </FieldRefs>" + 
"<DisplayPattern> <HTML><![CDATA[<input id=\"chk_select]]></HTML><Column Name=\"ID\" HTMLEncode=\"TRUE\" /><HTML><![CDATA[\" 
name=\"chk_select\" type=\"checkbox\" ]]></HTML>" + 
"<HTML><![CDATA[LItemId=\"]]></HTML>" + 
"<Column Name=\"ID\" HTMLEncode=\"TRUE\" />" + 
"<HTML><![CDATA[\"/> ]]></HTML>" + "</DisplayPattern></Field>");
}

Sorry for the "+" but it's for my code lisibility! In fact you just create a field where the display is an HTML input component !!
2/ OK, but now, i have the display How do I get my checkboxes values after postback ?
Well, let's continue to be tricky!! I just create two Hidden field on my page

<asp:HiddenField runat="server" id="listSrv_items" />
<asp:HiddenField runat="server" id="checked_ids" /> 

And on my validation button i fill it before validation using a JS function called fill_ids

<asp:Button ID="Btn_valid" OnClientClick="fill_ids();" OnClick="Btn_valid_Click" runat="server"/>

The js function simply puts inside the listSrv_Items the ids of each item in the list, and checked_ids will finally contain the list of items ids that are checked.

here we go for the js that i manually add to the page in the render method:

protected override void Render(HtmlTextWriter writer)
{
this.ClientScript.RegisterClientScriptBlock(this.GetType(), "MyScript", @"
<script>
function fill_ids()
{
   var items= document.getElementById('" + listSrv_items.ClientID + @"').value;
   var checkedIds= document.getElementById('" + checked_ids.ClientID + @"');
   checkedIds.value='';
   var SParray = items.split(';');
   for (ix=0; ix< SParray.length-1; ix++)
   {
      var item = document.getElementById(""chk_select""+SParray[ix])
      if (item!=null && item.checked)
      {
         checkedIds.value += SParray[ix] + ';';
      }
   }
   if (checkedIds.value.length>0)
      checkedIds.value = checkedIds.value.substr(0,checkedIds.value.length-1);
   }
</script>");
listSrv_items.Value = "";
foreach (SPListItem item in _rootList.Items)
{
   listSrv_items.Value += item.ID + ";";
}
}

Now my field checked_Ids will contain the ids of my checked items so in my Btn_valid_Click; i just have to use it to do anything I want! That's it!

Get SPList.ID From URL

I often face a problem : I have an URL, and I would like to get the list pointed by this URL. So I wanted a function that could return me this ID whenever I was passing an URL to it!

Some Regexp, some recursivity and here we are :

public SPList getListFromUrl(string url)
{
try
{
   if (!url.EndsWith("/")) url = url + "/";
   //match list
   Regex listExpReg = new Regex("(?.+)\\/Sites\\/(?.+)\\/Lists\\/(?.+)\\/.*", RegexOptions.IgnoreCase);
   if (listExpReg.IsMatch(url))
   {
      Match siteMatch = listExpReg.Match(url);
      String racine = siteMatch.Groups["Racine"].Value;
      String siteToFind = siteMatch.Groups["Sites"].Value;
      String listeToFind = siteMatch.Groups["LName"].Value;
      String[] splitedSiteList = siteToFind.Split('/');
      SPSite rootsite = new SPSite(racine + "/Sites/" + splitedSiteList[0]);
      if (rootsite != null)
      {
         using (SPWeb webNavigated = rootsite.RootWeb)
         {
            foreach (string s in splitedSiteList)
            {
               if (s != splitedSiteList[0])
               {
                     SPWeb TempWeb = webNavigated.Webs[s];
                     webNavigated = TempWeb;
                     TempWeb.Dispose();
               }
            }
            SPList listsearched = webNavigated.GetList(url);
            _destinationWeb = webNavigated;
            rootsite.Dispose();
         }
         return listsearched;
      }
      else
      {
         return null;
       }
  }
  else
     return null;
}
catch (Exception exc)
{
   //BUUUUUUUUP
 }
}

The function basically return null if the URL passed is not a list URL, and return the list ID whenever you pass an URL to it. It also works when you pass the url containing some allitems.aspx after the name of the list...
Try it!
Hope it helps