* Obtained B Grade For This Project. Do not direct copy form this project. This project was uploaded to enhance your IT knowledge.I think this project may be very helpful to understand procedure of C# project for DiTEC. Author: Kasun Madhusanka

1. DiTec Esoft C# Project Free
DiTec Project Esoft (C#)
Cource: Diploma in Information Technology With E commerce
Obtained Grade B For This Project
Do not direct copy form this project. This project was uploaded to enhance your IT
knowledge.I think this project may be very helpful to understand procedure of C# project
for DiTEC.

4. Welcome Start & Window
Enter Button
private void BtnEnter_Click(object sender, EventArgs e)
{
FrmWelcome fr = new FrmWelcome();
fr.Show();
this.Hide();

5. }
Exit Button
private void BtnExit_Click(object sender, EventArgs e)
{
DialogResult d1;
d1 = MessageBox.Show("Are You Sure Do You Want To Exit
?", "Exit", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
if (d1.ToString() == "Yes")
{
Application.Exit();
}
}
Welcome & Loading Window
Timer control
private void timer1_Tick(object sender, EventArgs e)
{
if (progressBar1.Value < 100)
{
progressBar1.Value = progressBar1.Value + 2;
}
else
{
timer1.Enabled=false;
FrmUser fr = new FrmUser();
fr.Show();
this.Hide();
}
Timer Properties

6. Login Window
Submit Button
string username = "kasun";
string password = "8620";
private void button1_Click(object sender, EventArgs e)
{
if (TxtUsername.Text == username && TxtPassword.Text == password)
{
DialogResult m2;
m2 = MessageBox.Show("Thank
You!", "Sucsess",MessageBoxButtons.OK, MessageBoxIcon.Information);
if (m2.ToString() == "OK")
{
MDISystem md1 = new MDISystem();
md1.Show();
this.Hide();
}
}

7. else
{
DialogResult m2;
m2 = MessageBox.Show("Incorrect Username & Password
","Error!", MessageBoxButtons.RetryCancel, MessageBoxIcon.Error);
if (m2.ToString() == "Retry")
{
TxtUsername.Clear();
TxtPassword.Clear();
TxtUsername.Focus();
Clear Button
TxtUsername.Text = "";
TxtPassword.Text = "";
TxtUsername.Focus();
Exit Button
DialogResult d1;
d1 = MessageBox.Show("Are You Sure Do You Want To Exit
?","Exit", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
if (d1.ToString() == "Yes")
{
Application.Exit();
}
MDI Window (Inside Menu Bar)
Appointment Details Window
FrmAppoinment_Details frm = new FrmAppoinment_Details();
frm.MdiParent = this;
frm.Show();
Medical Details Window
FrmMedical_Detals frm= new FrmMedical_Detals();
frm.MdiParent = this;
frm.Show();
Patient Details Window
FrmPatient_Details frm = new FrmPatient_Details();
frm.MdiParent = this;
frm.Show();
Doctor Details Window

8. FrmDoctor frm = new FrmDoctor();
frm.MdiParent = this;
frm.Show();
Medical Packages Window
FrmDoctor frm = new FrmDoctor();
frm.MdiParent = this;
frm.Show();
Help Window
FrmHelp frm = new FrmHelp();
frm.MdiParent = this;
frm.Show();
Author Window
FrmAuthor frm = new FrmAuthor();
frm.MdiParent = this;
frm.Show();
Appointment Details Window
Add Button
string connectionstring,commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring="INSERT INTO app
VALUES('"+CboRef.Text+"','"+txtpatname.Text+"','"+txtcontact.Text+"','"+txtad
dress.Text+"','"+cbogender.Text+"','"+comboBox1.Text+"','"+txtamount.Text+"')
";
MessageBox.Show("OK","Add Data ?",MessageBoxButtons.OK,MessageBoxIcon.Error);
OleDbConnection conn=new OleDbConnection(connectionstring);
OleDbCommand comm=new OleDbCommand(commandstring,conn);

9. conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Click OK","Data Added Successfully",MessageBoxButtons.OK);
conn.Close();
Search Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "SELECT*FROM app WHERE rn='" + CboRef.Text + "'";
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
OleDbDataReader reader=null;
try
{ conn.Open(); }
catch (Exception ex)
{ MessageBox.Show("Completed !"); }
reader = comm.ExecuteReader();
while (reader.Read())
{
txtpatname.Text = reader[1].ToString();
txtcontact.Text = reader[2].ToString();
txtaddress.Text = reader[3].ToString();
cbogender.Text = reader[4].ToString();
comboBox1.Text = reader[5].ToString();
txtamount.Text = reader[6].ToString();
}
reader.Close();
Update Button
String connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "UPDATE app SET rn='" + CboRef.Text +"',pn='" +
txtpatname.Text + "',co='" + txtcontact.Text + "',ad='" + txtaddress.Text
+ "',gn='" + cbogender.Text + "',pt='" + comboBox1.Text + "',am='" +
txtamount.Text + "'";
MessageBox.Show("Are u Sure", "Do You Want Update
?",MessageBoxButtons.OK, MessageBoxIcon.Error);
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Success", "Data Added
Sucsessfully!",MessageBoxButtons.OK, MessageBoxIcon.Error);
conn.Close();
Clear Button
CboRef.Text = "";
txtpatname.Text = "";

10. txtcontact.Text = "";
txtaddress.Text = "";
cbogender.Text = "";
comboBox1.Text = "";
txtamount.Text = "";
Delete Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "DELETE*FROM app WHERE rn='"+CboRef.Text+ "'";
if (MessageBox.Show("Are You Sure Do You Want Delete This Record
?", "Sure?", MessageBoxButtons.YesNo, MessageBoxIcon.Warning)
== DialogResult.No)
{
return;
}
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Record Deleted Successfully");
CboRef.Text = "";
txtpatname.Clear();
txtcontact.Clear();
txtaddress.Clear();
cbogender.Text = "";
comboBox1.Text = "";
txtamount.Clear();
conn.Close();
Exit Button
this.Hide();
Medical Details Window

11. Add Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "INSERT INTO medical VALUES('" + comboBox1.Text
+ "','" + textBox3.Text + "','" + textBox2.Text +"','" + textBox1.Text
+ "','" + comboBox2.Text + "')";
MessageBox.Show("OK", "Add Data
?", MessageBoxButtons.OK,MessageBoxIcon.Error);
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Click OK", "Data Added
Successfully",MessageBoxButtons.OK);
conn.Close();
Search Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "SELECT*FROM medical WHERE pno='" +
comboBox1.Text + "'";
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
OleDbDataReader reader = null;
try
{ conn.Open(); }
catch (Exception ex)
{ MessageBox.Show("Completed !"); }
reader = comm.ExecuteReader();

12. while (reader.Read())
{
textBox3.Text = reader[1].ToString();
textBox2.Text = reader[2].ToString();
textBox1.Text = reader[3].ToString();
comboBox2.Text = reader[4].ToString();
}
reader.Close();
Update Button
String connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "UPDATE medical SET pno='" + comboBox1.Text
+ "',pn='" + textBox3.Text + "',q='" + textBox2.Text +"',pp='" +
textBox1.Text + "',de='" + comboBox2.Text + "'";
MessageBox.Show("Are u Sure", "Do You Want Update
?",MessageBoxButtons.OK, MessageBoxIcon.Error);
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Success", "Data Added
Sucsessfully!",MessageBoxButtons.OK, MessageBoxIcon.Error);
conn.Close();
Clear Button
comboBox1.Text = "";
textBox3.Text = "";
textBox2.Text = "";
textBox1.Text = "";
comboBox2.Text = "";
Delete Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "DELETE*FROM medical WHERE pno='" +
comboBox1.Text + "'";
if (MessageBox.Show("Are You Sure Do You Want Delete This Record
?", "Sure?", MessageBoxButtons.YesNo, MessageBoxIcon.Warning)
== DialogResult.No)
{
return;
}
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();

13. comm.ExecuteNonQuery();
MessageBox.Show("Record Deleted Successfully");
textBox3.Clear();
textBox2.Clear();
textBox1.Clear();
comboBox2.Text = "";
comboBox1.Text = "";
conn.Close();
Exit Button
this.Hide();
Patient Details Window
Add Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "INSERT INTO patient VALUES('" + comboBox1.Text
+ "','" + textBox1.Text + "','" + comboBox2.Text +"','" + textBox2.Text
+ "','" + textBox3.Text + "','" + textBox4.Text + "')";
MessageBox.Show("OK", "Add Data
?",MessageBoxButtons.OK, MessageBoxIcon.Error);
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();

14. comm.ExecuteNonQuery();
MessageBox.Show("Click OK", "Data Added
Successfully",MessageBoxButtons.OK);
conn.Close();
Search Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "SELECT*FROM patient WHERE pno='" +
comboBox1.Text + "'";
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
OleDbDataReader reader = null;
try
{ conn.Open(); }
catch (Exception ex)
{ MessageBox.Show("Completed !"); }
reader = comm.ExecuteReader();
while (reader.Read())
{
textBox1.Text = reader[1].ToString();
comboBox2.Text = reader[2].ToString();
textBox2.Text = reader[3].ToString();
textBox3.Text = reader[4].ToString();
textBox4.Text = reader[5].ToString();
}
reader.Close();
Update Button
String connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "UPDATE patient SET pno='" + comboBox1.Text
+ "',pn='" + textBox1.Text + "',db='" + comboBox2.Text + "',bg='" +
textBox2.Text + "',da='" + textBox3.Text + "',dr='" + textBox4.Text + "'";
MessageBox.Show("Are u Sure", "Do You Want Update
?",MessageBoxButtons.OK, MessageBoxIcon.Error);
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Success", "Data Added
Sucsessfully!",MessageBoxButtons.OK, MessageBoxIcon.Error);
conn.Close();
Clear Button
comboBox1.Text = "";
textBox1.Text = "";
comboBox2.Text = "";
textBox2.Text = "";
textBox3.Text = "";
textBox4.Text = "";

15. Delete Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "DELETE*FROM patient WHERE pno='" +
comboBox1.Text + "'";
if (MessageBox.Show("Are You Sure Do You Want Delete This Record
?", "Sure?", MessageBoxButtons.YesNo, MessageBoxIcon.Warning)
== DialogResult.No)
{
return;
}
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Record Deleted Successfully");
comboBox1.Text = "";
textBox1.Text = "";
comboBox2.Text = "";
textBox2.Clear();
textBox3.Clear();
textBox4.Text = "";
Exit Button
this.Hide();
Doctor Details Window

16. Add Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "INSERT INTO patient VALUES('" + comboBox1.Text
+ "','" + textBox1.Text + "','" + comboBox2.Text +"','" + textBox2.Text
+ "','" + textBox3.Text + "','" + textBox4.Text + "')";
MessageBox.Show("OK", "Add Data
?", MessageBoxButtons.OK,MessageBoxIcon.Error);
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Click OK", "Data Added
Successfully",MessageBoxButtons.OK);
conn.Close();
Search Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "SELECT*FROM patient WHERE pno='" +
comboBox1.Text + "'";
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
OleDbDataReader reader = null;
try
{ conn.Open(); }
catch (Exception ex)
{ MessageBox.Show("Completed !"); }
reader = comm.ExecuteReader();
while (reader.Read())
{
textBox1.Text = reader[1].ToString();
comboBox2.Text = reader[2].ToString();
textBox2.Text = reader[3].ToString();
textBox3.Text = reader[4].ToString();
textBox4.Text = reader[5].ToString();
}
reader.Close();
Update Button
String connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";

17. commandstring = "UPDATE patient SET pno='" + comboBox1.Text
+ "',pn='" + textBox1.Text + "',db='" + comboBox2.Text + "',bg='" +
textBox2.Text + "',da='" + textBox3.Text + "',dr='" + textBox4.Text + "'";
MessageBox.Show("Are u Sure", "Do You Want Update
?",MessageBoxButtons.OK, MessageBoxIcon.Error);
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Success", "Data Added
Sucsessfully!",MessageBoxButtons.OK, MessageBoxIcon.Error);
conn.Close();
Exit Button
this.Hide();
Delete Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "DELETE*FROM patient WHERE pno='" +
comboBox1.Text + "'";
if (MessageBox.Show("Are You Sure Do You Want Delete This Record
?", "Sure?", MessageBoxButtons.YesNo, MessageBoxIcon.Warning)
== DialogResult.No)
{
return;
}
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Record Deleted Successfully");
comboBox1.Text = "";
textBox1.Text = "";
comboBox2.Text = "";
textBox2.Clear();
textBox3.Clear();
textBox4.Text = "";
Clear Button
comboBox1.Text = "";
textBox1.Text = "";
comboBox2.Text = "";
textBox2.Text = "";
textBox3.Text = "";
textBox4.Text = "";
Medical Packages Window

18. Add Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "INSERT INTO patient VALUES('" + comboBox1.Text
+ "','" + textBox1.Text + "','" + comboBox2.Text +"','" + textBox2.Text
+ "','" + textBox3.Text + "','" + textBox4.Text + "')";
MessageBox.Show("OK", "Add Data
?", MessageBoxButtons.OK,MessageBoxIcon.Error);
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Click OK", "Data Added
Successfully",MessageBoxButtons.OK);
conn.Close();
Search Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "SELECT*FROM patient WHERE pno='" +
comboBox1.Text + "'";
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
OleDbDataReader reader = null;
try
{ conn.Open(); }
catch (Exception ex)
{ MessageBox.Show("Completed !"); }

19. reader = comm.ExecuteReader();
while (reader.Read())
{
textBox1.Text = reader[1].ToString();
comboBox2.Text = reader[2].ToString();
textBox2.Text = reader[3].ToString();
textBox3.Text = reader[4].ToString();
textBox4.Text = reader[5].ToString();
}
reader.Close();
Update Button
String connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "UPDATE patient SET pno='" + comboBox1.Text
+ "',pn='" + textBox1.Text + "',db='" + comboBox2.Text + "',bg='" +
textBox2.Text + "',da='" + textBox3.Text + "',dr='" + textBox4.Text + "'";
MessageBox.Show("Are u Sure", "Do You Want Update
?",MessageBoxButtons.OK, MessageBoxIcon.Error);
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Success", "Data Added
Sucsessfully!",MessageBoxButtons.OK, MessageBoxIcon.Error);
conn.Close();
Clear Button
comboBox1.Text = "";
textBox1.Text = "";
comboBox2.Text = "";
textBox2.Text = "";
textBox3.Text = "";
textBox4.Text = "";
Delete Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "DELETE*FROM patient WHERE pno='" +
comboBox1.Text + "'";
if (MessageBox.Show("Are You Sure Do You Want Delete This Record
?", "Sure?", MessageBoxButtons.YesNo, MessageBoxIcon.Warning)
== DialogResult.No)
{
return;
}
OleDbConnection conn = newOleDbConnection(connectionstring);

20. OleDbCommand comm = new OleDbCommand(commandstring, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Record Deleted Successfully");
comboBox1.Text = "";
textBox1.Text = "";
comboBox2.Text = "";
textBox2.Clear();
textBox3.Clear();
textBox4.Text = "";
Exit Button
this.Hide();
Help Window
Select Button
string connectionstring, commandstring;
connectionstring =@"Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:Hosptal Management Systemesoft.mdb";
commandstring = "SELECT*FROM help WHERE se='" + comboBox1.Text
+ "'";
OleDbConnection conn = newOleDbConnection(connectionstring);
OleDbCommand comm = new OleDbCommand(commandstring, conn);
OleDbDataReader reader = null;
try
{ conn.Open(); }
catch (Exception ex)
{ MessageBox.Show("......"); }
reader = comm.ExecuteReader();

21. while (reader.Read())
{
textBox2.Text = reader[1].ToString();
}
reader.Close();
Exit Button
this.Hide();
Author Window
Exit Button
this.Hide();
Now I think you earned good knowledge about project . Now I hope to give you additional
codes to solve some problems. ( These are additional codes )
privatevoid btnadd_Click(object sender, EventArgs e)
{
string connectionString, commandString;
connectionString
=@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:Hospital
SystemHMS.mdb";
commandString = "INSERT INTO Appoinment VALUES ('"+
cborefno.Text + "','" + txtpatname.Text + "','" + txtcontact.Text

22. + "','" + txtaddress.Text + "','" + cbogender.Text + "','" +
cboPayment.Text + "','" + txtamount.Text + "')";
OleDbConnection conn = newOleDbConnection(connectionString);
OleDbCommand comm = newOleDbCommand(commandString, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Record Added Succesfully");
cborefno.Items.Add(cborefno.Text);
Clear();
cborefno.Focus();
conn.Close();
}
privatevoid cborefno_SelectedIndexChanged(object sender,EventArgs e
)
{
string connectionString, commandString;
connectionString
=@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:Hospital
SystemHMS.mdb";
commandString = "SELECT * FROM Appoinment WHERE
RefNo='" + cborefno.Text + "'";
OleDbConnection conn = newOleDbConnection(connectionString);
OleDbCommand comm = newOleDbCommand(commandString, conn);
OleDbDataReader reader = null;
try
{ conn.Open(); }
catch (Exception ex)
{ MessageBox.Show(ex.Message); }
reader = comm.ExecuteReader();
while (reader.Read())
{
txtpatname.Text = reader[1].ToString();
txtcontact.Text = reader[2].ToString();
txtaddress.Text = reader[3].ToString();
cbogender.Text = reader[4].ToString();
cboPayment.Text = reader[5].ToString();
txtamount.Text = reader[6].ToString(); }
reader.Close();
conn.Close();
}
privatevoid Form1_Load(object sender, EventArgs e)
{

23. string connectionString, commandString;
connectionString
=@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:Hospital
SystemHMS.mdb";
commandString = "SELECT RefNo FROM Appoinment";
OleDbConnection conn = newOleDbConnection(connectionString);
OleDbCommand comm = newOleDbCommand(commandString, conn);
OleDbDataReader reader = null;
try
{
conn.Open();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
reader = comm.ExecuteReader();
while (reader.Read())
{
cborefno.Items.Add(reader[0]);
}
reader.Close();
conn.Close();
}
privatevoid btnupdate_Click(object sender, EventArgs e)
{
string connectionString, commandString;
connectionString
=@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:Hospital
SystemHMS.mdb";
commandString = "UPDATE Appoinment SET PatName = '"+
txtpatname.Text + "', Contact = '" + txtcontact.Text + "', Address
= '" + txtaddress.Text + "', Gender = '" + cbogender.Text
+ "',PayType = '" + cboPayment.Text +"',Amount='" + txtamount.Text
+ "' where RefNo = '" + cborefno.Text + "'";
if (MessageBox.Show("Are you sure, you want to Update this
record?", "Sure?", MessageBoxButtons.YesNo) == DialogResult.No)
{
return;
}
OleDbConnection conn = newOleDbConnection(connectionString);
OleDbCommand comm = newOleDbCommand(commandString, conn);

24. conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Record Updated Succesfully");
Clear();
cborefno.Focus();
conn.Close();
}
privatevoid btndelete_Click(object sender, EventArgs e)
{
string connectionString, commandString;
connectionString
=@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:Hospital
SystemHMS.mdb";
commandString = "DELETE Appoinment.RefNo FROM
Appoinment where Appoinment.RefNo = '" + cborefno.Text + "'";
if (MessageBox.Show("Are you sure, you want to delete this
record?", "Sure?", MessageBoxButtons.YesNo) == DialogResult.No)
{
return;
}
OleDbConnection conn = newOleDbConnection(connectionString);
OleDbCommand comm = newOleDbCommand(commandString, conn);
conn.Open();
comm.ExecuteNonQuery();
MessageBox.Show("Record Deleted Successfully");
conn.Close();
cborefno.Items.Remove(cborefno.Text);
cborefno.Focus();
Clear();
}
privatevoid Clear()
{
cborefno.Text = "";
txtpatname.Clear();
txtcontact.Clear();
txtaddress.Clear();
cbogender.Text = "";
cboPayment.Text = "";
txtamount.Clear();
cborefno.Focus();
}
privatevoid btnclear_Click(object sender, EventArgs e)

25. {
Clear();
}
privatevoid btnexit_Click(object sender, EventArgs e)
{
this.Hide();
}
********************************
About Me !
********************************
Kasun Madhusanka
Phone:+94770597830
Email:kktmadhusanka@gmail.com
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26. Posted by Kasun Madhusanka at 3:44 PM