Hi my name is vishal for 10 days i have been breaking my head on how to have a list ofitems in a listbox created by that user in in c# windows forms and same user who has entered into the application and entered into form in c# windows forms with sql server 2008.
So given below is my c# code of frmLogin(login form):
namespace Mini_Project
{
public partial class frmLogin : Form
{
private bool ManagerUser(string username, string password)
{
bool success = false;
SqlConnection conn = new SqlConnection("Data Source=NPD-4\\SQLEXPRESS;Initial Catalog=Task;Integrated Security=true");
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandType = CommandType.Text;
cmd = new SqlCommand("Select @count = Count(*) from [dbo].[ManagerDetail2] where username=@username and password=@password and LoginAttempts< 3", conn);
cmd.Parameters.AddWithValue("@username", txtUsername.Text);
cmd.Parameters.AddWithValue("@password", txtPassword.Text);
cmd.Parameters.AddWithValue("@manager_id", Module.MUser_ID);
cmd.Parameters.Add("@count", SqlDbType.Int).Direction = ParameterDirection.Output;
conn.Open();
cmd.ExecuteNonQuery();
if (Convert.ToInt32(cmd.Parameters["@count"].Value)>0)
{
success = true;
cmd = new SqlCommand("Update [dbo].[ManagerDetail2] set LoginAttempts=0 where username='" + txtUsername.Text + "'", conn);
cmd.ExecuteNonQuery();
}
else
{
success = false;
cmd = new SqlCommand("Update [dbo].[ManagerDetail2] set LoginAttempts=LoginAttempts+1 where username='" + txtUsername.Text + "'", conn);
cmd.ExecuteNonQuery();
}
conn.Close();
return success;
}
private bool ValidateUser(string username, string password)
{
bool success = false;
SqlConnection conn = new SqlConnection("Data Source=NPD-4\\SQLEXPRESS;Initial Catalog=Task;Integrated Security=true");
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandType = CommandType.Text;
cmd = new SqlCommand("Select @count = Count(*) from [dbo].[UserDetail2] where username=@username and password=@password and LoginAttempts< 3", conn);
cmd.Parameters.AddWithValue("@username", txtUsername.Text);
cmd.Parameters.AddWithValue("@password", txtPassword.Text);
cmd.Parameters.AddWithValue("@user_id", Module.User_ID);
cmd.Parameters.Add("@count", SqlDbType.Int).Direction = ParameterDirection.Output;
conn.Open();
cmd.ExecuteNonQuery();
if (Convert.ToInt32(cmd.Parameters["@count"].Value)>0)
{
success = true;
cmd = new SqlCommand("Update [dbo].[UserDetail2] set LoginAttempts=0 where username='" + txtUsername.Text + "'", conn);
cmd.ExecuteNonQuery();
}
else
{
success = false;
cmd = new SqlCommand("Update [dbo].[UserDetail2] set LoginAttempts=LoginAttempts+1 where username='" + txtUsername.Text + "'", conn);
cmd.ExecuteNonQuery();
}
conn.Close();
return success;
}
private void btnLogin_Click(object sender, EventArgs e)
{
if ((txtPassword.Text == "password") && (txtUsername.Text.ToLower() == "admin"))
{
Module.AUser_ID=1;
MDIParent1 h = new MDIParent1();
h.Show();
this.Close();
}
else
{
string username = txtUsername.Text;
string password = txtPassword.Text;
bool validUser = ValidateUser(username, password);
bool validmanager = ManagerUser(username, password);
if (validUser)
{
Module.User_ID = 1;
MDIParent1 m = new MDIParent1();
m.Show();
this.Close();
}
if (validmanager)
{
Module.MUser_ID = 1;
MDIParent1 g = new MDIParent1();
g.Show();
this.Close();
}
else
{
MessageBox.Show("Invalid user name or password. Please try tomorow ", "Task", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtUsername.Focus();
}
}
}
private void btnCancel_Click(object sender, EventArgs e)
{
Application.Exit();
}The above code works Fine! So i login into my application(Mini Project) using default username:admin and default passsword:password.
Given below is my c# code of how i add normal user(frmUser) into application:
namespace Mini_Project
{
public partial class frmUser : Form
{
public frmUser()
{
InitializeComponent();
}
private void btnCreate_Click(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source=NPD-4\\SQLEXPRESS;Initial Catalog=Task;Integrated Security=true");
if (conn.State != ConnectionState.Open)
{
conn.Open();
}
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandType = CommandType.Text;
int autoGenId = -1;
cmd = new SqlCommand("Insert into [dbo].[UserDetail2](user_first_name,user_last_name,user_dob,user_sex,email,username,password,status,row_upd_date,created_by,LoginAttempts)" + "Values(@user_first_name,@user_last_name,@user_dob,@user_sex,@email,@username,@password,@status,GetDate(),@created_by,@LoginAttempts); Select @autoGenId=SCOPE_IDENTITY();", conn);
cmd.Parameters.AddWithValue("@user_first_name", txtFName.Text);
cmd.Parameters.AddWithValue("@user_last_name", txtLName.Text);
cmd.Parameters.AddWithValue("@user_dob", dtDOB.Value);
if (cboSex.SelectedIndex == 0)
{
cmd.Parameters.AddWithValue("@user_sex", "Male");
}
else if (cboSex.SelectedIndex == 1)
{
cmd.Parameters.AddWithValue("@user_sex", "Female");
}
else if (cboSex.SelectedIndex == 2)
{
cmd.Parameters.AddWithValue("@user_sex", "Transgender");
}
cmd.Parameters.AddWithValue("@email", txtEmailID.Text);
cmd.Parameters.AddWithValue("@username", txtUsername.Text);
cmd.Parameters.AddWithValue("@password", txtPassword.Text);
cmd.Parameters.AddWithValue("@status", 1);
cmd.Parameters.AddWithValue("@Created_by",Module.MUser_ID);
cmd.Parameters.AddWithValue("@LoginAttempts", 0);
cmd.Parameters.Add("@autoGenId", SqlDbType.Int).Direction = ParameterDirection.Output;
cmd.ExecuteNonQuery();
autoGenId = Convert.ToInt32(cmd.Parameters["@autoGenId"].Value);
PuserID = 1;
cmd = new SqlCommand("Update [dbo].[UserDetail2] set LoginAttempts=0 where username='" + txtUsername.Text + "'", conn);
cmd.ExecuteNonQuery();
((MDIParent1)this.MdiParent).updateUserActivities(autoGenId, 1, txtFName.Text + "User detail was added successfully");
MessageBox.Show("User Detail was added successfully", "Task", MessageBoxButtons.OK, MessageBoxIcon.Information);
conn.Close();
this.Close();
}The above code Works OK !
Given below is my structure of table named:UserDetail2 in sql server 2008:
ColumnName DataType AllowNulls
user_id(auto-increment primary key) Int No
user_first_name nvarchar(50) Yes
user_last_name nvarchar(50) Yes
user_dob date Yes
user_sex nvarchar(20) Yes
email nvarchar(80) Yes
username nvarchar(25) Yes
password nvarchar(15) Yes
status bit Yes
row_upd_date datetime Yes
created_by Int Yes
LoginAttempts Int Yes
Given below is my c# code of how i add managers(frmManager) into my application:
using System.Data.SqlClient;
namespace Mini_Project
{
public partial class frmManager : Form
{
public frmManager()
{
InitializeComponent();
}
private void btnCreate_Click(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source=NPD-4\\SQLEXPRESS;Initial Catalog=Task;Integrated Security=true");
if (conn.State != ConnectionState.Open)
{
conn.Open();
}
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandType = CommandType.Text;
int bGenId = -1;
cmd = new SqlCommand("Insert into [dbo].[ManagerDetail2](manager_first_name,manager_last_name,manager_dob,manager_sex,email,username,password,status,created_by,LoginAttempts,row_upd_date)" + "Values(@manager_first_name,@manager_last_name,@manager_dob,@manager_sex,@email,@username,@password,@status,@created_by,@LoginAttempts,GetDate()); Select @autoGenId=SCOPE_IDENTITY();", conn);
cmd.Parameters.AddWithValue("@manager_first_name", txtFName.Text);
cmd.Parameters.AddWithValue("@manager_last_name", txtLName.Text);
cmd.Parameters.AddWithValue("@manager_dob", dtDOB.Value);
if (cboSex.SelectedIndex == 0)
{
cmd.Parameters.AddWithValue("@manager_sex", "Male");
}
else if (cboSex.SelectedIndex == 1)
{
cmd.Parameters.AddWithValue("@manager_sex", "Female");
}
else if (cboSex.SelectedIndex == 2)
{
cmd.Parameters.AddWithValue("@manager_sex", "Transgender");
}
cmd.Parameters.AddWithValue("@email", txtEmailID.Text);
cmd.Parameters.AddWithValue("@username", txtUsername.Text);
cmd.Parameters.AddWithValue("@password", txtPassword.Text);
cmd.Parameters.AddWithValue("@status", 1);
cmd.Parameters.AddWithValue("@Created_by", 1);
cmd.Parameters.AddWithValue("@LoginAttempts", 0);
cmd.Parameters.Add("@autoGenId", SqlDbType.Int).Direction = ParameterDirection.Output;
cmd.ExecuteNonQuery();
bGenId = Convert.ToInt32(cmd.Parameters["@autoGenId"].Value);
cmd = new SqlCommand("Update [dbo].[ManagerDetail2] set LoginAttempts=0 where username='" + txtUsername.Text + "'", conn);
cmd.ExecuteNonQuery();
((MDIParent1)this.MdiParent).updateUserActivities(bGenId, 2, txtFName.Text.ToString() + "Manager detail was added successfully");
MessageBox.Show("Manager Detail was added successfully", "Task", MessageBoxButtons.OK, MessageBoxIcon.Information);
conn.Close();
this.Close();
}The above code works Fine!
Given below is structure of my table:ManagerDetail2 in sql server 2008
ColumnName DataType AllowNulls
manager_id(auto-increment primary key) Int No
manager_first_name nvarchar(50) Yes
manager_last_name nvarchar(50) Yes
manager_dob date Yes
manager_sex nvarchar(20) Yes
email nvarchar(80) Yes
username nvarchar(25) Yes
password nvarchar(15) Yes
status bit Yes
created_by Int Yes
LoginAttempts Int Yes
row_upd_date datetime Yes
Given below is my c# code of how i assign a task to user created by a manager(frmTask):
private void frmTask_Load(object sender, EventArgs e)
{
dtAssignDate.MinDate = dtAssignDate.Value;
string user=("Select u.user_id as user_id,(u.user_first_name+' '+u.user_last_name+'|'+right('000'+convert(varchar,u.user_id),5)) as Name from UserDetail2 u where u.status=1");
DataTable mt = new DataTable();
SqlConnection cont = new SqlConnection("Data Source=NPD-4\\SQLEXPRESS;Initial Catalog=Task;Integrated Security=true");
if (cont.State != ConnectionState.Open)
{
cont.Open();
}
SqlCommand hcr = new SqlCommand(user, cont);
mt.Load(hcr.ExecuteReader());
lstUsers.DataSource = mt;
lstUsers.ValueMember = "user_id";
lstUsers.DisplayMember = "Name";
lstUsers.SelectedValue = 0;
}The above code works only to some extent!
The problem i am facing in above code is that i get all users in my listbox from table(UserDetail2) in c# windows forms with sql server 2008.
So i login/enter into my application(Mini Project)(using username and password from ManagerDetail2) ,add new user to application.
What i want is when that manager goes into frmTask then i want theusers created by that manager only to be displayed in my listbox(lstUsers) in my form(frmTask) once myfrmTasks loads that is what i want.
Given below is my c# code of my MdiParent(MDIParent1):
private void MDIParent1_Load(object sender, EventArgs e)
{
connBuilder = new SqlConnectionStringBuilder();
connBuilder.InitialCatalog = "DRRS";
connBuilder.DataSource = "NPD-4\\SQLEXPRESS";
connBuilder.IntegratedSecurity = true;
connBuilder.AsynchronousProcessing = true;
conn = new SqlConnection(connBuilder.ToString());
conn.Open();
}
namespace Mini_Project
{
public partial class MDIParent1 : Form
{
private int childFormNumber = 0;
static int AUser_ID = 0;
static int User_ID = 0;
static int MUser_ID = 0;
int pUserID;
public MDIParent1()
{
InitializeComponent();
if (Module.AUser_ID == 1)
{
addNewTaskToolStripMenuItem.Enabled = true;
addUserToolStripMenuItem1.Enabled = true;
addManagerToolStripMenuItem.Enabled = true;
addTaskToolStripMenuItem.Enabled = true;
exitToolStripMenuItem.Enabled = true;
checkInUserToolStripMenuItem.Enabled = false;
tasksToolStripMenuItem.Enabled = true;
optionsToolStripMenuItem.Enabled = true;
pendingTaksToolStripMenuItem.Enabled = true;
completedTasksToolStripMenuItem.Enabled = true;
}
if (Module.MUser_ID == 1)
{
addUserToolStripMenuItem1.Enabled = false;
addManagerToolStripMenuItem.Enabled = true;
addNewTaskToolStripMenuItem.Enabled = false;
addTaskToolStripMenuItem.Enabled = true;
exitToolStripMenuItem.Enabled = true;
checkInUserToolStripMenuItem.Enabled = false;
tasksToolStripMenuItem.Enabled = true;
optionsToolStripMenuItem.Enabled = true;
pendingTaksToolStripMenuItem.Enabled = true;
completedTasksToolStripMenuItem.Enabled = true;
}
if (Module.User_ID == 1)
{
addManagerToolStripMenuItem.Enabled = false;
addUserToolStripMenuItem1.Enabled = false;
addNewTaskToolStripMenuItem.Enabled = false;
addTaskToolStripMenuItem.Enabled = false;
exitToolStripMenuItem.Enabled = true;
checkInUserToolStripMenuItem.Enabled = true;
tasksToolStripMenuItem.Enabled = false;
optionsToolStripMenuItem.Enabled = false;
pendingTaksToolStripMenuItem.Enabled = false;
completedTasksToolStripMenuItem.Enabled = false;
}
}Given below is c# code of my class(Module):
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Mini_Project
{
class Module
{
public static int AUser_ID=0;
public static int User_ID=0;
public static int MUser_ID=0;
}
}Can anyone help me Please! Can anyone tell me what modifications must i do in my c# code and where? Can anyone help me/guide me to achieve my required result?! Any help/guidance in solving of this problem would be greatly appreciated!
vishal