Create a folder inside your SHAREPOINT list or document library

public static void CreateFolder(SPWeb rootWeb, SPList eLibrary, string strFolderName)
{
try
{
using (rootWeb)
{
rootWeb.AllowUnsafeUpdates = true;
SPFolderCollection folders = rootWeb.GetFolder(eLibrary.RootFolder.ServerRelativeUrl).SubFolders;
SPFolder newFolder = folders.Add(strFolderName);
newFolder.Update();
eLibrary.Update();
}
}
catch(Exception ex)
{
Logger.LogWarning("Error configuring ELibrary Folder: " + ex.Message);
}
}

Create a SHAREPOINT site collection & subsites programatically

try
{
SPWebApplication webApplication = SPWebApplication.Lookup(new Uri("http://dev3:10131"));
SPSiteCollection siteCollections = webApplication.Sites;
siteCollections.Add("http://dev3:10131/IntranetMOSS", "chanaka_temp", "chanacse@gmail.com");
}
catch(Exception ex)
{
// log the error
}

// Add subsites into the siteCollection
try
{
using (SPSite mySite = new SPSite("http://dev3:10131/IntranetMOSS"))
{
using (SPWeb myWeb = mySite.OpenWeb())
{ //path name
SPWeb newWeb = myWeb.Webs.Add("SBU", "SBU's", "Add for commercial purpose", 1033, "STS#1", false, false);
newWeb.Update();
newWeb = myWeb.Webs.Add("Newss", "News", "Update with the ", 1033, "STS#1", false, false);
newWeb.Update();
newWeb = myWeb.Webs.Add("Groups", "Groups", "As a unit", 1033, "STS#1", false, false);
newWeb.Update();
newWeb = myWeb.Webs.Add("CorporateNews", "Corporate News", "All you need", 1033, "STS#0", false, false);
newWeb.Update();
newWeb = myWeb.Webs.Add("Services", "Services", "Always with you", 1033, "STS#0", false, false);
newWeb.Update();
newWeb = myWeb.Webs.Add("UserManuals", "User Manuals", "Help", 1033, "STS#0", false, false);
newWeb.Update();
}
}
}

// you can set the breadcrumb of the each site through the code also
// Simple task.........


try
{
SPSite ChildSite = new SPSite(web.Url);
SPWeb DChildWeb = ChildSite.OpenWeb();
SPNavigationNode ParentNode = new SPNavigationNode(parentWeb.Title, parentWeb.Url + "/HomePage.aspx", true);
SPNavigationNode ChildNode = new SPNavigationNode(DChildWeb.Title, DChildWeb.Title + "/HomePage.aspx");
parentWeb.Navigation.TopNavigationBar.AddAsLast(ChildNode);
web.Navigation.TopNavigationBar.AddAsFirst(ParentNode);
web.Navigation.UseShared = true;
web.Update();
}
catch (Exception ex)
{
// log this error
}

Create a webpart using Visual Studio

This is an old method, but i think this will be useful if someone has very basic knowledge.
User can add a usercontrol & any code can be in your usercontrol

using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.WebControls;
using System.Web.UI;

namespace UCAddSubjectNewsWebpart
{
public class UCAddSubjectNews : WebPart
{
UserControl usercontrol;
protected override void Render(System.Web.UI.HtmlTextWriter writer)
{
usercontrol.RenderControl(writer);
}

protected override void CreateChildControls()
{
base.CreateChildControls();
this.Controls.Clear();
usercontrol=(UserControl)this.Page.LoadControl("~/usercontrols/Name_of_user_control.ascx");
this.Controls.Add(usercontrol);
}
}
}

Install a feature into sharepoint

1) Open Visual Studio Command Promt

2) Navigate to 12 hive folder
a. cd C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\BIN

3) stsadm –o installfeature – name myFeature

4) Activate the feature by using the site settings --> site administration --> site features --> Click activate button of myFeature (new feature)

When you create a Document Management System

Factors that should be considered before make a document library (SharePoint)
1) Types of document that we are going to store (upload)
2) Templates that we are going to use
3) Metadata that associated with the documents
4) Access control
5) Policy of the documents
6) Conversion of documents (if needed in future)
7) Ability to move documents away from the document library

Most of these features can be done by using the OOB features
1) Permission setting of the document libraries
2) Target audience of the document libraries
3) Select main type of the document that we are focusing on library

How to plan the document library
1) Define the roles
2) Estimate the usage of documents
3) Organize the document
4) Content types (metadata, features, properties)
5) Content control
6) Workflows
7) Policy management

Add a flash material into sharepoint site

1) First go to the site & Click Edit page
2) Then Add a content editor to the page
3) Click Source Editor
4) Add following Code

Add users programmatically into a SHAREPOINT cutomlist(VERY RARE)

private string setAssignedPeopleStirng(string pstrIDS)
{
try
{
string[] strArrNames = pstrIDS.Split(new char[] { ';' });
string strSend = string.Empty;
SPWeb web = MySite.AllWebs[WebSite];
SPUserCollection MLUserGroup = web.SiteUsers;
for (int count = 0; count <>
{
string strusreName = MLUserGroup.GetByID(int.Parse(strArrNames[count])).Name;
strSend += strArrNames[count].Trim() + ";#" + strusreName + ";#";
}
return strSend;
}
catch
{
return string.Empty;
}
}

Active directory acces to get Telephone number

public Hashtable getUserTelephoneNumbers()
{
try
{
Hashtable arrNames = new Hashtable();
int count = 0;
string domain = "172.21.0.255";
DirectoryEntry de = new DirectoryEntry("LDAP://" + domain);
de.Username = "MS\\Administrator";
de.Password = "password";
DirectorySearcher ds = new DirectorySearcher(de);

ds.Filter = "(&(objectClass=user)(objectCategory=person))";

ds.Sort.Direction = System.DirectoryServices.SortDirection.Ascending; ds.SearchScope = SearchScope.Subtree;
ds.PageSize = 4000;
count++;

try
{
SortedList objSortedList = new SortedList();

foreach (SearchResult result in ds.FindAll())
{

DirectoryEntry deTemp = result.GetDirectoryEntry();

try

{

arrNames.Add(deTemp.Properties["cn"].Value.ToString(), deTemp.Properties["TelephoneNumber"].Value.ToString());

}

catch (Exception ex)
{
ex.Message.ToString();
}

}

}

catch (Exception ex)
{
//HttpContext.Current.Response.Write(ex.ToString());
}

finally
{
}
return arrNames;

}

catch
{
return null;

}

}

Get E-mails of all users in a SPGroup

SPWeb web = site.AllWebs

[ConfigurationManager.AppSettings["WEB_SITE"].ToString()];
SPGroup group = web.Groups[0];
SPUserCollection MLUserGroup = web.SiteUsers;
String strUserGroupName = MLUserGroup.GetByID(27).Groups[0].Name

CAML query with a filter between DateTime's

SPQuery query = new SPQuery();

query.Query = "<Where><And><Geq><FieldRef Name="Created" /><Value Type="DateTime" IncludeTimeValue='FALSE'>" + SPUtility.CreateISO8601DateTimeFromSystemDateTime(ddtStartDate) + "</Value></Geq>" +

"<Leq><FieldRef Name="Created" /><Value Type="DateTime" IncludeTimeValue='FALSE'>" +

SPUtility.CreateISO8601DateTimeFromSystemDateTime(ddtEndDate) + "</Value></Leq></And></Where>";

SPListItemCollection collection = list.GetItems(query);<Query>

<Where> <Eq> <FieldRef Name="CatalogItem" LookupValue="TRUE" /> <Value Type="Lookup">Value Goes Here</Value> </Eq> </Where> </Query> <where> <eq> <fieldref name="PersonFieldName"/> <value type="User">User Display Name</value> </eq> </where>