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Jahangir Khan
NA
27
5.8k
Changes in my program
May 24 2016 8:21 AM
Now I have 2 combo boxes "Year" & "Amount" on the top of them I do get values for user info, because there are text boxes when called with user ID text boxes fill up with correct data.
The 2 combo boxes are also filled with correct data but I have to manually select year and the amount corresponding to it.
I need help in when I call the data "Year" & "Amount" should appear visable in the combo box and when I lets say select a year then the amount should change accordingly, lat but not the least my reset is not clearing the combo boxes.
Hope you can help, the code is as follows:-
using
System;
using
System.Windows.Forms;
using
System.Data.SqlClient;
using
System.Data;
namespace
dss
{
public
partial
class
Form1 : Form
{
SqlConnection con =
new
SqlConnection(
"Data Source=JAKHAN-PC\\sqlexpress;Initial Catalog=JG_Test;Integrated Security=True"
);
public
Form1()
{
InitializeComponent();
}
private
void
btnSearch_Click(
object
sender, EventArgs e)
{
cmbYear.Items.Clear();
string
sql =
""
;
con.Open();
SqlCommand cmd =
new
SqlCommand();
try
{
sql +=
"SELECT m.MemberId, m.Name, m.Address, m.Cellular, m.Email, p.PaymentId, p.Year, p.Amount from Members as m"
;
sql +=
" INNER JOIN Payments as p ON m.MemberId = p.MemberId"
;
sql +=
" WHERE m.MemberId = '"
+ tbID.Text +
"' ORDER BY p.Year ASC"
;
cmd.Connection = con;
cmd.CommandText = sql;
SqlDataAdapter da =
new
SqlDataAdapter(cmd);
DataTable dt =
new
DataTable();
da.Fill(dt);
con.Close();
if
(dt.Rows.Count >0)
{
for
(
int
i = 0; i<=dt.Rows.Count -1;i++)
{
tbID.Text = dt.Rows[i][
"MemberId"
].ToString();
tbName.Text = dt.Rows[i][
"Name"
].ToString();
tbCellular.Text = dt.Rows[i][
"Cellular"
].ToString();
tbEmail.Text = dt.Rows[i][
"Email"
].ToString();
tbAddress.Text = dt.Rows[i][
"Address"
].ToString();
cmbAmount.Items.Add(dt.Rows[i][
"Amount"
].ToString());
cmbYear.Items.Add(dt.Rows[i][
"Year"
].ToString());
}
}
}
catch
(Exception ex)
{
MessageBox.Show(ex.Message.ToString());
}
}
//This part displaying og the existing data from all the fileds corrssponding within the database//
private
void
btnAdd_Click(
object
sender, EventArgs e)
{
{
con.Open();
string
Sql =
"INSERT INTO Members ( MemberId, Name, Cellular, Email, Address ) VALUES "
+
" (@Id, @name, @cell, @email, @address)"
;
using
(SqlCommand cmd =
new
SqlCommand(Sql, con))
{
cmd.CommandText = Sql;
cmd.Parameters.AddWithValue(
"@Id"
, tbID.Text);
cmd.Parameters.AddWithValue(
"@name"
, tbName.Text);
cmd.Parameters.AddWithValue(
"@cell"
, tbCellular.Text);
cmd.Parameters.AddWithValue(
"@email"
, tbCellular.Text);
cmd.Parameters.AddWithValue(
"@address"
, tbAddress.Text);
cmd.ExecuteNonQuery();
Sql =
"INSERT INTO Payments ( MemberId, [Year], [Amount] ) VALUES "
+
" (@Id, Amount, Year)"
;
cmd.Parameters.Clear();
cmd.CommandText = Sql;
cmd.Parameters.AddWithValue(
"@Id"
, tbID.Text);
cmd.Parameters.AddWithValue(
"@year"
, cmbYear.Text);
cmd.Parameters.AddWithValue(
"@amount"
, cmbAmount.Text);
cmd.ExecuteNonQuery();
MessageBox.Show(
"Data Added"
);
tbID.Clear(); tbName.Clear(); tbCellular.Clear(); tbEmail.Clear(); tbAddress.Clear(); cmbYear.Items.Clear(); cmbAmount.Items.Clear();
con.Close();
}
}
}
//This part represents adding of new input data from all the fileds into the database//
private
void
btnUpdate_Click(
object
sender, EventArgs e)
{
try
{
SqlCommand cmd =
new
SqlCommand();
string
Sql =
"UPDATE Members SET MemberId = '"
+ tbID.Text +
"', Name = '"
+ tbName.Text +
"', Cellular = '"
+ tbCellular.Text +
"', Email = '"
+ tbEmail.Text +
"', Address = '"
+ tbAddress.Text +
"' WHERE MemberId = '"
+ tbID.Text +
"' "
;
cmd.CommandText = Sql;
cmd.Connection = con;
con.Open();
cmd.ExecuteNonQuery();
con.Close();
Sql =
"UPDATE Payments SET MemberId = '"
+ tbID.Text +
"', Year = '"
+ cmbYear.Text +
"', Amount = '"
+ cmbAmount.Text +
"' WHERE MemberId = '"
+ tbID.Text +
"' "
;
cmd.CommandText = Sql;
cmd.Connection = con;
con.Open();
cmd.ExecuteNonQuery();
con.Close();
MessageBox.Show(
"Data Updated"
);
tbID.Clear(); tbName.Clear(); tbAddress.Clear(); tbCellular.Clear(); tbEmail.Clear(); cmbYear.Items.Clear(); cmbAmount.Items.Clear();
}
catch
(Exception error)
{
MessageBox.Show(error.ToString());
}
}
//This part represents deleteing of input data from all the fileds into the database//
private
void
btnDelete_Click(
object
sender, EventArgs e)
{
try
{
SqlCommand cmd =
new
SqlCommand();
string
Sql =
"DELETE FROM Members WHERE MemberId = '"
+ tbID.Text +
"' "
;
cmd.CommandText = Sql;
cmd.Connection = con;
con.Open();
cmd.ExecuteNonQuery();
con.Close();
Sql =
"DELETE FROM Payments WHERE MemberId = '"
+ tbID.Text +
"' "
;
cmd.CommandText = Sql;
cmd.Connection = con;
con.Open();
cmd.ExecuteNonQuery();
tbID.Clear(); tbName.Clear(); tbAddress.Clear(); tbCellular.Clear(); tbEmail.Clear(); cmbYear.Items.Clear(); cmbAmount.Items.Clear();
MessageBox.Show(
"Data Deleted"
);
con.Close();
}
catch
(Exception error)
{
MessageBox.Show(error.ToString());
}
}
//This part represents clearing of input data from all the fileds//
private
void
btnReset_Click(
object
sender, EventArgs e)
{
tbID.Clear(); tbName.Clear(); tbAddress.Clear(); tbCellular.Clear(); tbEmail.Clear(); cmbYear.Items.Clear(); cmbAmount.Items.Clear();
}
//This part represents shuting down the application//
private
void
btnExit_Click(
object
sender, EventArgs e)
{
Application.Exit();
}
}
}
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