Develop Reference

Insert data from radio button into database

Building a form application in C# for selling phones as a project. I have two radio buttons which the user checks based on what type of payment method they want cash or card.
How do I insert that data into the database based on what the user selects?

You can try this,
protected void Button1_Click(object sender, EventArgs e)
{
string cs = ConfigurationManager.ConnectionStrings["db"].ConnectionString;
SqlConnection cn = new SqlConnection(cs);
SqlCommand cmd = new SqlCommand();
cmd.Connection = cn;
cmd.CommandType = CommandType.Text;
cmd.CommandText = "insert into sample values(#payment)";
cmd.Parameters.Clear();
cmd.Parameters.AddWithValue("#payment", payment.SelectedValue);
if (cn.State == ConnectionState.Closed)
cn.Open();
cmd.ExecuteNonQuery();
cn.Close();
lblmsg.Text = "Data entered successfully!!!";
}

I found the answer to my own question if someone needs it
try
{
var connection = getConnection();
connection.Open();
if (CashRadio.Checked == true)
{
var command = new SqlCommand
{
Connection = connection,
CommandText ="INSERT INTO type_payment(cash,card) values(1,0)"
};
command.Parameters.Clear();
int result = command.ExecuteNonQuery();
if (result > 0)
{
MessageBox.Show("Succsefully picked type");
}
else
{
MessageBox.Show("error");
}
}
else if (CardRadio.Checked == true)
{
var command = new SqlCommand
{
Connection = connection,
CommandText = "INSERT INTO type_payment(cash,card) values(0,1)"
};
command.Parameters.Clear();
int result = command.ExecuteNonQuery();
if (result > 0)
{
MessageBox.Show("Succesfully picked type");
}
else
{
MessageBox.Show("Error");
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}

Luka,
Try it below.
Add HTML Markup like:
<asp:CheckBox ID="chkCash" runat="server" />
.cs file add below code.
string Cash = chkCash.Checked ? "Y" : "N";
And send or add value like.
SqlCommand cmd = new SqlCommand("INSERT INTO Employees(Cash) VALUES(#Cash)"))
{
cmd.Parameters.AddWithValue("#Cash", Cash);
}

Trying to update data in C# does not work

I have a form which updates data. Query is executing but not updating the data. What's wrong? How to fix this?
It was working when I had concatenation but I changed it to parameters and now it's not working
private void button11_Click(object sender, EventArgs e)
{
try
{
if (SId.Text == "" || SellName.Text == "" || SellAge.Text == "" || SellPhone.Text == "" || SellPass.Text == "")
{
MessageBox.Show("Missing info");
}
string query = "UPDATE Sellers SET [SellerName] = #Name, [SellerAge] = #Age, [SellerPhone] = #Phone, [SellerPassword] = #Pass WHERE [SellerId] = #Id";
SqlCommand cmd = new SqlCommand(query, Con);
cmd.Parameters.AddWithValue("#Id", SId.Text);
cmd.Parameters.AddWithValue("#Name", SellName.Text);
cmd.Parameters.AddWithValue("#Age", SellAge.Text);
cmd.Parameters.AddWithValue("#Phone", SellPhone.Text);
cmd.Parameters.AddWithValue("#Pass", SellPass.Text);
Con.Open();
cmd.ExecuteNonQuery();
MessageBox.Show("Update successful!");
SId.Text = "";
SellName.Text = "";
SellPhone.Text = "";
SellPass.Text = "";
SellAge.Text = "";
Con.Close();
populate();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}

You have to use a connection for the shortest time possible. Instead of conection.Open() use cmd.connection.Open(). I recommend to use this code:
var result=0;
using (var con= new SqlConnection(connectionString))
{
var cmd = new SqlCommand(query, con);
cmd.Parameters.AddWithValue("#Id", SId.Text); //??? if #Id is int or varchar?
cmd.Parameters.AddWithValue("#Name", SellName.Text);
cmd.Parameters.AddWithValue("#Age", SellAge.Text);
cmd.Parameters.AddWithValue("#Phone", SellPhone.Text);
cmd.Parameters.AddWithValue("#Pass", SellPass.Text);
cmd.Connection.Open();
result=cmd.ExecuteNonQuery();
}
if(result>0) MessageBox.Show("Update successful!");
else ....error
.... your code
I marked with ?? your #Id input parameter. I have some doubts that it is a string type. Check again. If it is int or any another type you will have to convert SId.Text to this type before to create a parameter.The same about #Age.

c# Ask to save changes before selecting another item in listbox

I'd like to integrate an autocheck that prevent user to forget to save changes with a textbox 'Do you want to save change' Yes-No
If yes - > save
if no - > returns
Here's my code without the checking
namespace WindowsFormsApp1
{
public partial class Form1 : Form
{
OleDbConnection conn;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
conn = new
OleDbConnection("Provider=Microsoft.Jet.OleDb.4.0;Data
Source=" + #Application.StartupPath + "\\Database1.mdb");
fill_lb();
}
private void fill_lb()
{
listBox1.Items.Clear();
if (conn.State != ConnectionState.Open) { conn.Close();
conn.Open(); }
OleDbCommand cmd = conn.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "SELECT * FROM [table1] ORDER BY firstn";
cmd.ExecuteNonQuery();
DataTable dt = new DataTable();
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
da.Fill(dt);
foreach (DataRow dr in dt.Rows)
{
listBox1.Items.Add(dr["firstn"].ToString());
}
conn.Close();
}
private void listBox1_SelectedIndexChanged(object sender,
EventArgs e)
{
textBox_fn.Text = string.Empty;
textBox_ln.Text = string.Empty;
if (conn.State != ConnectionState.Open) { conn.Close();
conn.Open(); }
OleDbCommand cmd = conn.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "SELECT * FROM [table1] WHERE firstn='" +
listBox1.SelectedItem.ToString() + "'";
cmd.ExecuteNonQuery();
DataTable dt = new DataTable();
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
da.Fill(dt);
foreach (DataRow dr in dt.Rows)
{
textBox_fn.Text = dr["firstn"].ToString();
textBox_ln.Text = dr["lastn"].ToString();
}
conn.Close();
}
private void button_savenew_Click(object sender, EventArgs e)
{
if (conn.State != ConnectionState.Open) { conn.Close();
conn.Open(); }
OleDbCommand cmd = new OleDbCommand();
cmd.Connection = conn;
cmd.CommandText = "INSERT INTO [table1] ([firstn],[lastn])
values ([#firstn],[#lastn])";
cmd.Parameters.AddWithValue("#firstn", textBox_fn.Text);
cmd.Parameters.AddWithValue("#lastn", textBox_ln.Text);
cmd.ExecuteNonQuery();
fill_lb();
conn.Close();
}
private void button_modify_Click(object sender, EventArgs e)
{
if (conn.State != ConnectionState.Open) { conn.Close();
conn.Open(); }
OleDbCommand cmd = new OleDbCommand();
cmd.Connection = conn;
cmd.CommandText = "UPDATE [Table1] SET [firstn]=[#firstn],
[lastn]=[#lastn] WHERE firstn = '" +
listBox1.SelectedItem.ToString() + "'";
cmd.Parameters.AddWithValue("#firstn", textBox_fn.Text);
cmd.Parameters.AddWithValue("#lastn", textBox_ln.Text);
cmd.ExecuteNonQuery();
fill_lb();
conn.Close();
}
private void button_new_Click(object sender, EventArgs e)
{
textBox_fn.Text = string.Empty;
textBox_ln.Text = string.Empty;
}
}
}
What I've done with no success :
Bool modified = false
private void textBox_fn_TextChanged(object sender, EventArgs e)
{
modified = true;
}
private void textBox_ln_TextChanged(object sender, EventArgs e)
{
modified = true;
}
private void listBox1_SelectedIndexChanged(object sender,
EventArgs e)
{
if (modified.Equals(true))
{
DialogResult dialogr = MessageBox.Show("Do you want to
save change ?","", MessageBoxButtons.YesNo);
switch (dialogr)
{
case DialogResult.Yes:
button_savenew.PerformClick();
modifie = false;
break;
case DialogResult.No:
return;
}
}
modified = false;
textBox_fn.Text = string.Empty;
textBox_ln.Text = string.Empty;
}
This is not working because it ask to save everytime I click on listbox
What Can I do ?

I would look into using a MessageBox. It would greatly simplify what you are trying to do. Perform the check in the background, and if they didn't save do this:
string message = "Are you sure you don't want to save?";
string caption = "Error Detected in Input";
MessageBoxButtons buttons = MessageBoxButtons.YesNo;
DialogResult result;
// Displays the MessageBox.
result = MessageBox.Show(message, "Are you Sure", buttons);
if (result == System.Windows.Forms.DialogResult.Yes)
{
// Save file
}
if (result == System.Windows.Forms.DialogResult.No){
this.Close();
}

Remove the the associate code from listBox1_SelectedIndexChanged event and add to it the end of button_modify_Click. Try like:
private void Check()
{
if (modified.Equals(true))
{
DialogResult dialogr = MessageBox.Show("Do you want to
save change ?","", MessageBoxButtons.YesNo);
switch (dialogr)
{
case DialogResult.Yes:
button_savenew.PerformClick();
modifie = false;
break;
case DialogResult.No:
return;
}
}
modified = false;
textBox_fn.Text = string.Empty;
textBox_ln.Text = string.Empty;
}
private void button_modify_Click(object sender, EventArgs e)
{
if (conn.State != ConnectionState.Open) { conn.Close();
conn.Open(); }
OleDbCommand cmd = new OleDbCommand();
cmd.Connection = conn;
cmd.CommandText = "UPDATE [Table1] SET [firstn]=[#firstn],
[lastn]=[#lastn] WHERE firstn = '" +
listBox1.SelectedItem.ToString() + "'";
cmd.Parameters.AddWithValue("#firstn", textBox_fn.Text);
cmd.Parameters.AddWithValue("#lastn", textBox_ln.Text);
cmd.ExecuteNonQuery();
fill_lb();
Check(); //<--added here
conn.Close();
}

Try resetting modified after DB update, at the end of button_modify_Click

I think I found the right way to do the job using the tag property.
first I add a new boolean that will check if I leave a textbox
bool left_txtbox = false; //when leaving textbox
then I add this code the the Leave property of textboxes
private void textBox_fn_Leave(object sender, EventArgs e)
{
name = listBox1.SelectedItem.ToString();
textBox_fn.Tag = textBox_fn.Text;
left_txtbox = true;
}
private void textBox_ln_Leave(object sender, EventArgs e)
{
name = listBox1.SelectedItem.ToString();
textBox_ln.Tag = textBox_ln.Text;
left_txtbox = true;
}
on listbox selected index change I add the check when leaving textbox
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
if (left_txtbox == true) Check(); // if txtbox has been left, do the check
textBox_fn.Text = string.Empty;
textBox_ln.Text = string.Empty;
if (conn.State != ConnectionState.Open) { conn.Close(); conn.Open(); }
OleDbCommand cmd = conn.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "SELECT * FROM [table1] WHERE firstn='" + listBox1.SelectedItem.ToString() + "'";
cmd.ExecuteNonQuery();
DataTable dt = new DataTable();
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
da.Fill(dt);
foreach (DataRow dr in dt.Rows)
{
textBox_fn.Text = dr["firstn"].ToString();
textBox_ln.Text = dr["lastn"].ToString();
}
conn.Close();
}
finally the check itself, it will compare the Tag with the value stored in DB
private void Check()
{
if (conn.State != ConnectionState.Open) { conn.Close(); conn.Open(); }
OleDbCommand cmd = conn.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "SELECT * FROM [table1] WHERE firstn='" + name + "'";
cmd.ExecuteNonQuery();
DataTable dt = new DataTable();
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
da.Fill(dt);
foreach (DataRow dr in dt.Rows)
{
try // ignore null values
{
if (textBox_fn.Tag.ToString() != dr["firstn"].ToString()) { modified = true; }
if (textBox_ln.Tag.ToString() != dr["lastn"].ToString()) { modified = true; }
}
catch { }
if (modified.Equals(true))
{
DialogResult dialogr = MessageBox.Show("Do you want to save change ? ", "", MessageBoxButtons.YesNo);
switch (dialogr)
{
case DialogResult.Yes:
button_savenew.PerformClick();
modified = false;
break;
case DialogResult.No:
modified = false;
return;
}
}
modified = false;
}
I think the code can be optimized

Web form: checking for duplicate database entries

I am a newbie.
I am attempting to check for duplicate database entries. My problem is:
I would like a success alert shown if the entry is successful.
A notification of duplicates shown if a duplicate exists.
My issue is: the alert for duplicates gets shown multiple times, however, the entry is never created if no duplicates exist.
This is my code:
/// <summary>
/// The following procedure creates the user account in the database The procedure first attempts to
/// perform a check for duplicates before submitting the registration info
/// </summary>
protected void BTN_CreateACNT_Click(object sender, EventArgs e)
{
string InsertQuery = "";
string ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["Reimburse"].ConnectionString;
InsertQuery = "Insert into TBL_Logins (FirstName, LastName, EmailAddress, Password) VALUES(#FirstName, #LastName, #EmailAddress, #Password)";
String FirstNameSTR = FN.Text.Trim();
String LastNameSTR = LN.Text.Trim();
String EMailAddressSTR = EmailAddress.Text.Trim();
byte[] PassByte = StrToByteArray(PWD.Text.Trim());
// CheckUser(EMailAddressSTR);
while (CheckUser(EMailAddressSTR) == false)
{
SqlConnection CN = new SqlConnection(ConnectionString);
SqlCommand CMD = new SqlCommand(InsertQuery, CN);
CMD.CommandType = CommandType.Text;
CMD.Parameters.AddWithValue("#Firstname", FirstNameSTR);
CMD.Parameters.AddWithValue("#LastName", LastNameSTR);
CMD.Parameters.AddWithValue("#EmailAddress", EMailAddressSTR);
CMD.Parameters.AddWithValue("#Password", PassByte);
CN.Open();
CMD.ExecuteNonQuery();
Response.Write("<script language='javascript'>alert('Account created successfully.');</script>");
CN.Close();
}
}
public bool CheckUser(String UserString)
{
String UserSelect = "Select * from TBL_Logins where EmailAddress = #EmailAddress";
int MailCount = 0;
string ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["Reimburse"].ConnectionString;
SqlConnection CN = new SqlConnection(ConnectionString);
UserString = EmailAddress.Text.Trim();
SqlCommand CMD = new SqlCommand(UserSelect, CN);
CMD.Parameters.AddWithValue("#EmailAddress", UserString);
CN.Open();
SqlDataReader dr = CMD.ExecuteReader();
while (dr.Read())
{
if (UserString == dr["EmailAddress"].ToString())
{
Response.Write("<script language='javascript'>alert('This EMail address is already taken. Please try again.');</script>");
// return true;
}
}
CN.Close();
return true;
}
protected void BTN_CreateACNT_Click(object sender, EventArgs e)
{
string InsertQuery = "";
string ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["Reimburse"].ConnectionString;
InsertQuery = "Insert into TBL_Logins (FirstName, LastName, EmailAddress, Password) VALUES(#FirstName, #LastName, #EmailAddress, #Password)";
String FirstNameSTR = FN.Text.Trim();
String LastNameSTR = LN.Text.Trim();
String EMailAddressSTR = EmailAddress.Text.Trim();
byte[] PassByte = StrToByteArray(PWD.Text.Trim());
// CheckUser(EMailAddressSTR);
while(CheckUser(EMailAddressSTR) == false)
{
SqlConnection CN = new SqlConnection(ConnectionString);
SqlCommand CMD = new SqlCommand(InsertQuery, CN);
CMD.CommandType = CommandType.Text;
CMD.Parameters.AddWithValue("#Firstname", FirstNameSTR);
CMD.Parameters.AddWithValue("#LastName", LastNameSTR);
CMD.Parameters.AddWithValue("#EmailAddress", EMailAddressSTR);
CMD.Parameters.AddWithValue("#Password", PassByte);
CN.Open();
CMD.ExecuteNonQuery();
Response.Write("<script language='javascript'>alert('Account created successfully.');</script>");
CN.Close();
}
}
public bool CheckUser(String UserString)
{
String UserSelect = "Select * from TBL_Logins where EmailAddress = #EmailAddress";
int MailCount = 0;
string ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["Reimburse"].ConnectionString;
SqlConnection CN = new SqlConnection(ConnectionString);
UserString = EmailAddress.Text.Trim();
SqlCommand CMD = new SqlCommand(UserSelect,CN);
CMD.Parameters.AddWithValue("#EmailAddress", UserString);
CN.Open();
SqlDataReader dr = CMD.ExecuteReader();
while (dr.Read())
{
if (UserString == dr["EmailAddress"].ToString())
{
Response.Write("<script language='javascript'>alert('This EMail address is already taken. Please try again.');</script>");
// return true;
}
}
CN.Close();
return true;
}

Looks like the CheckUser method always returns true and that's why the insertion does not work, update the method to return false by default:
while (dr.Read())
{
if (UserString == dr["EmailAddress"].ToString())
{
Response.Write("<script language='javascript'>alert('This EMail address is already taken. Please try again.');</script>");
return true; // return true if user exists
}
}
CN.Close();
return false; // return false if the user does not exist
It is also recommended to use using block to dispose the DB connection instead of manually invoking the Close() method.

listview no data exists for the selected row/column c# InvalidOperationException

I am 100% sure my listview has data. My program will get the ID from the column 0 of my listview, connects to the database, and using the ID as my reference will get the data from my database and display it to my textboxes/comboboxes. SO when I click an item from my listview, an exception appears and all of my textboxes as well as my comboboxes are empty. I am new to c# and programming, any help will be much appreciated.
using System;
using System.Data.OleDb;
namespace WindowsFormsApp2
{
public partial class Form1 : Form
{
private string button = null;
private string carID;
public Form1()
{
InitializeComponent();
textDateReg.Text = DateTime.Now.ToString();
lvRefresh();
}
private void lvRefresh()
{
listView1.Items.Clear();
listView1.View = View.Details;
OleDbConnection con = new OleDbConnection();
con.ConnectionString = #"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\genesis\\Documents\\Database2.accdb";
con.Open();
OleDbCommand cmd = new OleDbCommand("Select ID, PlateNo from Cars", con);
OleDbDataReader cmdrdr = cmd.ExecuteReader();
if (cmdrdr.HasRows)
{
while (cmdrdr.Read())
{
ListViewItem list = new ListViewItem(cmdrdr["ID"].ToString());
list.SubItems.Add(cmdrdr["PlateNo"].ToString());
listView1.Items.Add(list);
}
}
con.Close();
cmdrdr.Close();
cmd.Dispose();
}
private void buttonNew_Click(object sender, EventArgs e)
{
button = "new";
buttonSub.Enabled = true;
panel1.Enabled = true;
}
private void textBox7_MouseClick(object sender, MouseEventArgs e)
{
textBox7.Text = null;
}
private void buttonSub_Click(object sender, EventArgs e)
{
switch (button)
{
case "new":
DialogResult dialogResult = MessageBox.Show("Are you sure you want to Register?", "Confirm", MessageBoxButtons.YesNo);
if (dialogResult == DialogResult.Yes)
{
string Adrs = this.textADRS.Text;
string Fname = this.textFN.Text;
string Mname = this.textMN.Text;
string Lname = this.textLN.Text;
string Age = this.textAGE.Text;
string RegDate = this.textDateReg.Text;
string Gender = comboGender.SelectedItem.ToString();
string Phone = this.textPHONE.Text;
string Color = this.textColor.Text;
string Type = this.comboType.SelectedItem.ToString();
string Brand = this.textBrand.Text;
string Model = this.textModel.Text;
string PlateNo = this.textPlateNo.Text;
try
{
OleDbConnection con = new OleDbConnection();
con.ConnectionString = #"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\genesis\\Documents\\Database2.accdb";
OleDbCommand cmd = new OleDbCommand("Insert into Drivers (FirstName,MiddleName,LastName,Address,Age,PhoneNo,Gender,RegDate) Values (#FirstName,#MidName,#LastName,#Address,#Age,#Phone,#Gender,#RegDate)", con);
con.Open();
cmd.Parameters.Add(new OleDbParameter("#FirstName", Fname));
cmd.Parameters.Add(new OleDbParameter("#MidName", Mname));
cmd.Parameters.Add(new OleDbParameter("#LastName", Lname));
cmd.Parameters.Add(new OleDbParameter("#Address", Adrs));
cmd.Parameters.Add(new OleDbParameter("#Age", Age));
cmd.Parameters.Add(new OleDbParameter("#Phone", Phone));
cmd.Parameters.Add(new OleDbParameter("#Gender", Gender));
cmd.Parameters.Add(new OleDbParameter("#RegDate", RegDate));
cmd.ExecuteNonQuery();
cmd.Dispose();
cmd = new OleDbCommand("Insert into Cars(Color, Brand, Model, Type, PlateNo) Values(#Color, #Brand, #Model, #Type, #PlateNo)", con);
cmd.Parameters.Add(new OleDbParameter("#Color", Color));
cmd.Parameters.Add(new OleDbParameter("#Brand", Brand));
cmd.Parameters.Add(new OleDbParameter("#Model", Model));
cmd.Parameters.Add(new OleDbParameter("#Type", Type));
cmd.Parameters.Add(new OleDbParameter("#PlateNo", PlateNo));
cmd.ExecuteNonQuery();
con.Close();
cmd.Dispose();
MessageBox.Show("Record Submitted", "Nice!");
lvRefresh(); //refresh listview
}
catch (Exception es)
{
MessageBox.Show(es.Message);
}
}
break;
case "del":
dialogResult = MessageBox.Show("Are you sure you want to Register?", "Confirm", MessageBoxButtons.YesNo);
if (dialogResult == DialogResult.Yes)
{
string Adrs = this.textADRS.Text;
string Fname = this.textFN.Text;
string Mname = this.textMN.Text;
string Lname = this.textLN.Text;
string Age = this.textAGE.Text;
string RegDate = this.textDateReg.Text;
string Gender = comboGender.SelectedItem.ToString();
string Phone = this.textPHONE.Text;
string Color = this.textColor.Text;
string Type = this.comboType.SelectedItem.ToString();
string Brand = this.textBrand.Text;
string Model = this.textModel.Text;
string PlateNo = this.textPlateNo.Text;
try
{
}
catch
{
}
}
break;
case "edit":
break;
}
}
private void listView1_SelectedIndexChanged(object sender, EventArgs e)
{
panel1.Enabled = true;//panel that contains my textboxes/comboboxes
buttonDel.Enabled = true;
try
{
ListViewItem item = listView1.SelectedItems[0];
carID = item.Text;
OleDbConnection con = new OleDbConnection();
con.ConnectionString = #"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\genesis\\Documents\\Database2.accdb";
OleDbCommand cmd = new OleDbCommand("Select * from Drivers where ID = #ID", con);
con.Open();
cmd.Parameters.AddWithValue("#ID", carID);
OleDbDataReader rdr = cmd.ExecuteReader();
while (rdr.HasRows)
{
textFN.Text = rdr["FirstName"].ToString();
textMN.Text = rdr["MiddleName"].ToString();
textLN.Text = rdr["LastName"].ToString();
textADRS.Text = rdr["Address"].ToString();
textPHONE.Text = rdr["PhoneNo"].ToString();
textDateReg.Text = rdr["RegDate"].ToString();
textAGE.Text = rdr["Age"].ToString();
comboGender.Text = rdr["Gender"].ToString();
if (!rdr.HasRows)
{
rdr.Close();
cmd.Dispose();
OleDbCommand cmdc = new OleDbCommand("Select * from Cars where ID = #ID", con);
cmdc.Parameters.AddWithValue("#ID", carID);
OleDbDataReader rdrc = cmdc.ExecuteReader();
while (rdrc.HasRows)
{
textColor.Text = rdr["Color"].ToString();
comboType.Text = rdr["Type"].ToString();
textBrand.Text = rdr["Brand"].ToString();
textModel.Text = rdr["Model"].ToString();
textPlateNo.Text = rdr["PlateNo"].ToString();
}
rdrc.Close();
cmdc.Dispose();
con.Close();
}
}
}
catch (Exception es)
{
MessageBox.Show(es.Message);
}
}
}
}