Disable f12 in web page

<script language="JavaScript">
    document.onkeypress = function (event) {
        event = (event || window.event);
        if (event.keyCode == 123) {
           //alert('No F-12');
            return false;
        }
    }
    document.onmousedown = function (event) {
        event = (event || window.event);
        if (event.keyCode == 123) {
            //alert('No F-keys');
            return false;
        }
    }
document.onkeydown = function (event) {
        event = (event || window.event);
        if (event.keyCode == 123) {
            //alert('No F-keys');
            return false;
        }
    }
</script>

Create a .exe for asp.net web application

Steps:

1. Right Click on solution --> add new project --->Select web set up project. and give the name mysetup.

2. Right click on mysetup-->select View-->File System.

3.Left side panel we get the web application folder

4.right click on web application folder -->Add-->project output-->ok

5.inside web application folder bin folder is there , right click-->Add-->project output-->ok

6.Build the websetup.

7. Build the whole solution.

8.Goto mysetup folder location (physical path) inside debug you will find setup

9.Run the set up , you will find the application in IIS.

Create table with Foriegn key

CREATE TABLE Users
(
Id int Primary key,
UserName varchar(250),
Group_id int,
AppName varchar(250),
URL varchar(250),
CONSTRAINT fk_Users_List FOREIGN KEY (Group_id)
REFERENCES Group(id)
)

Create table with Auto increment field in oracle

There is no such thing as "auto_increment" or "identity" columns in Oracle. However, you can model it easily with a sequence and a trigger:

Table definition:
CREATE TABLE departments (
  ID           NUMBER(10)    NOT NULL,
  DESCRIPTION  VARCHAR2(50)  NOT NULL);

ALTER TABLE departments ADD (
  CONSTRAINT dept_pk PRIMARY KEY (ID));

CREATE SEQUENCE dept_seq;

Trigger definition:

CREATE OR REPLACE TRIGGER dept_bir
BEFORE INSERT ON departments
FOR EACH ROW

BEGIN
  SELECT dept_seq.NEXTVAL
  INTO   :new.id
  FROM   dual;
END;

UPDATE: IDENTITY column is now available on Oracle 12c version, see this:

CREATE TABLE t1 (c1 NUMBER GENERATED BY DEFAULT ON NULL AS IDENTITY,
                   c2 VARCHAR2(10));

Get users based on LDAP group

  public DataTable getUsers(string username)
    {
        DataTable dtUsers = new DataTable();
        dtUsers.Columns.Add("users");
        try
        {
            // create domain context
            PrincipalContext ctx = new PrincipalContext(ContextType.Domain);
            // fetch your group
            GroupPrincipal group = GroupPrincipal.FindByIdentity(ctx, username);
            // enumerate over the group's members
            foreach (Principal p in group.Members)
            {
                DataRow row = dtUsers.NewRow();
                row[0] = p.Name;
                dtUsers.Rows.Add(row);
                //Console.WriteLine("Principal '{0}', type '{1}'", p.Name, p.StructuralObjectClass);
            }

        }
        catch (Exception ex)
        {
            ErrorLog.Log(ex);
        }
        return dtUsers;
    }

Get List of groups and users From LDAP

using System.DirectoryServices;

using System.DirectoryServices.AccountManagement;

using System.DirectoryServices.ActiveDirectory;

public partial class Admin : System.Web.UI.Page

{

    Common common = new Common();

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!Page.IsPostBack)

        {

                //Getting the Current user name

                string username = common.ExtractUserName(User.Identity.Name);

                UserPrincipal user = UserPrincipal.FindByIdentity(new PrincipalContext(ContextType.Domain), IdentityType.SamAccountName, username);

                ArrayList adminGroups = common.GetAdminGroups();//Get the Admin Groups

                ArrayList groups = common.getGroupsByPrincipal(user);//Get the User Groups

                groups.Add(user.DisplayName.ToLower().Trim());

                groups.Add(user.SamAccountName.ToLower().Trim());

                getUsersAndGroup();

                bool redirect = true;

//Check wheather user is admin or not

                if (adminGroups.Count > 0)

                {

                    foreach (string adminGroup in adminGroups)

                    {

                        if (groups.Contains(adminGroup))

                        {

                            redirect = false;

                            break;

                        }

                    }

                    if (redirect)

                    {

                        Response.Redirect("Default.aspx", true);

                    }

                }

        }

    }

    private void getUsersAndGroup()

    {

        try

        {

            ArrayList allUsers = this.getAllUsers();

            ArrayList allGroups = this.getAllGroups();

            DataTable dtGroups = new DataTable();

            dtGroups.Columns.Add("Groups");

            for (int i = 0; i < allGroups.Count; i++)

            {

                DataRow row = dtGroups.NewRow();

                row[0] = allGroups[i];

                dtGroups.Rows.Add(row);

            }

            ddlGroup.DataSource = dtGroups;

            ddlGroup.DataTextField = "Groups";

            ddlGroup.DataValueField = "Groups";

            ddlGroup.DataBind();

        }

        catch (Exception ex)

        {

            ErrorLog.Log(ex);

        }

    }

    public DataTable getUsers(string username)

    {

        DataTable dtUsers = new DataTable();

        dtUsers.Columns.Add("users");

        try

        {

            // create domain context

            PrincipalContext ctx = new PrincipalContext(ContextType.Domain);

            // fetch your group

            GroupPrincipal group = GroupPrincipal.FindByIdentity(ctx, username);

            // enumerate over the group's members

            foreach (Principal p in group.Members)

            {

                DataRow row = dtUsers.NewRow();

                row[0] = p.Name;

                dtUsers.Rows.Add(row);

                //Console.WriteLine("Principal '{0}', type '{1}'", p.Name, p.StructuralObjectClass);

            }

        }

        catch (Exception ex)

        {

            ErrorLog.Log(ex);

        }

        return dtUsers;

    }

    private ArrayList getAllUsers()

    {

        return getADObjectsForClass("User");

    }

    private ArrayList getAllGroups()

    {

        return getADObjectsForClass("Group");

    }

    private ArrayList getADObjectsForClass(string objectClass)

    {

        ArrayList list = new ArrayList();

        try

        {

            DirectoryEntry dirEntry = new DirectoryEntry("LDAP://" + System.Configuration.ConfigurationManager.AppSettings["DomainName"]); //Enter the domain name here

            DirectorySearcher dirSearcher = new DirectorySearcher();

            dirSearcher.SearchRoot = dirEntry;

            dirSearcher.Filter = "(objectClass=" + objectClass + ")";

            dirSearcher.PropertiesToLoad.Add("cn");

            SearchResultCollection res = dirSearcher.FindAll();

            foreach (SearchResult objectUnit in res)

            {

                list.Add(objectUnit.Properties["cn"][0].ToString());

            }

        }

        catch (Exception ex)

        {

            ErrorLog.Log(ex);

        }

        return list;

    }

}

IF condition in Select Statement SQL Server

The CASE statement is the closest to IF Else in SQL and is supported on all versions of SQL Server

SELECT CAST(
             CASE 
                  WHEN Obsolete = 'N' or InStock = 'Y' 
                     THEN 1 
                  ELSE 0 
             END AS bit) as Salable, * 
FROM Product

You only need to do the CAST if you want the result as a boolean value, if you are happy with an int, this works:

SELECT CASE 
            WHEN Obsolete = 'N' or InStock = 'Y' 
               THEN 1 
               ELSE 0 
       END as Salable, * 
FROM Product
CASE statements can be embedded in other CASE statements and even included in aggregates.