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How do i add textbox values to Access database?

I want to add textbox values to relevant columns in access database, the connection has been established but when i click the submit button the values are not added.
here is the code i tried, any help is appreciated
protected void Button1_Click(object sender, EventArgs e)
{
string EmailAddress = TextBox1.Text;
string UserName = TextBox2.Text;
string Password = TextBox3.Text;
try
{
OleDbConnection con = new OleDbConnection(#"Provider = Microsoft.ACE.OLEDB.12.0; Data Source = C:\Users\Bheki Ndhlovu\source\WebSites\WebSite8\App_Data\UserDatabase.accdb; Persist Security Info = False;");
OleDbCommand cmd = new OleDbCommand();
cmd = new OleDbCommand("INSERT INTO User(EmailAddress, UserName, Password) VALUES(#EmailAddress, #UserName, #Password)");
con.Open();
if (con.State == ConnectionState.Open)
{
TextBox1.Text = "sssss";
cmd.Parameters.Add("#EmailAddress", OleDbType.VarChar).Value = TextBox1.Text;
cmd.Parameters.Add("#UserName", OleDbType.VarChar).Value = TextBox2.Text;
cmd.Parameters.Add("#Password", OleDbType.VarChar).Value = TextBox3.Text;
cmd.ExecuteNonQuery();
con.Close();
}
}
catch (Exception error)
{
//Show error message as error.Message
}
}

Try adding connection string with OleDbCommand.
cmd = new OleDbCommand("INSERT INTO User(EmailAddress, UserName, Password) VALUES(#EmailAddress, #UserName, #Password)",con);

Here is an example were all data operations reside in a class. If the add new record is successful the new primary key is returned. On failure you can query the exception that raised the problem for failure.
using System;
using System.Windows.Forms;
using System.Data.OleDb;
using System.IO;
namespace MS_AccessAddNewRecord_cs
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void addRecordButton_Click(object sender, EventArgs e)
{
var ops = new Operations();
var newId = 0;
if (ops.AddNewRow(companyTextBox.Text, contactNameTextBox.Text, contactTitleTextBox.Text, ref newId))
{
newIdentifierTextBox.Text = $"{newId}";
}
else
{
MessageBox.Show($"{ops.Exception.Message}");
}
}
}
/// <summary>
/// This class should be in a separate class file, I placed it here for easy of learning
/// </summary>
public class Operations
{
private OleDbConnectionStringBuilder Builder = new OleDbConnectionStringBuilder
{
Provider = "Microsoft.ACE.OLEDB.12.0",
DataSource = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Database1.accdb")
};
private Exception mExceptiom;
public Exception Exception
{
get
{
return mExceptiom;
}
}
/// <summary>
/// Add a new record, upon success return the new primary key for the record in pIdentifier parameter
/// </summary>
/// <param name="pName"></param>
/// <param name="pContactName"></param>
/// <param name="pContactTitle"></param>
/// <param name="pIdentfier"></param>
/// <returns></returns>
public bool AddNewRow(string pName, string pContactName, string pContactTitle, ref int pIdentfier)
{
bool Success = true;
try
{
using (OleDbConnection cn = new OleDbConnection { ConnectionString = Builder.ConnectionString })
{
using (OleDbCommand cmd = new OleDbCommand { Connection = cn })
{
cmd.CommandText = "INSERT INTO Customers (CompanyName,ContactName, ContactTitle) " +
"Values(#CompanyName,#ContactName, #ContactTitle)";
cmd.Parameters.AddWithValue("#CompanyName", pName);
cmd.Parameters.AddWithValue("#ContactName", pContactName);
cmd.Parameters.AddWithValue("#ContactTitle", pContactTitle);
cn.Open();
int Affected = cmd.ExecuteNonQuery();
if (Affected == 1)
{
cmd.CommandText = "Select ##Identity";
pIdentfier = Convert.ToInt32(cmd.ExecuteScalar());
}
}
}
}
catch (Exception ex)
{
Success = false;
mExceptiom = ex;
}
return Success;
}
}
}

Perhaps in the Page_Load method you do not have a if(!isPostback) and so the value of the TextBoxes are getting reset on a postback before the Button1_Click method is executed.

If EmptyWaterHole's answer is not the problem, is it erroring out on the connection?
Be sure 'VarChar' is the correct data type for each of the fields.
Also, be sure the values do not exceed the size (ie: if you set the field to only allow up to 25 characters and your value is over 25 characters, the value will not be added).
In addition, if you are not allowing nulls and one of the values exceeds the limit, the whole record will not be added.

Mr. Hungry. Try it like this.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
namespace WindowsFormsApplication2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
OleDbConnection conn;
conn = new OleDbConnection(#"Provider=Microsoft.Jet.OleDb.4.0;Data Source=C:\your_path_here\Northwind.mdb");
conn.Open();
OleDbCommand cmd = conn.CreateCommand();
cmd.CommandText = #"INSERT INTO MyExcelTable([Fname], [Lname], [Address])VALUES('" + textBox1.Text + "', '" + textBox2.Text + "','" + textBox3.Text + "')";
cmd.ExecuteNonQuery();
conn.Close();
}
public OleDbConnection myCon { get; set; }
private void button2_Click(object sender, EventArgs e)
{
OleDbConnection conn = new OleDbConnection();
conn.ConnectionString = #"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\Ryan\Desktop\Coding\Microsoft Access\Northwind.mdb";
string fstName = textBox1.Text.Trim();
string lstName = textBox2.Text.Trim();
string adres = textBox3.Text.Trim();
OleDbCommand cmd = new OleDbCommand(#"INSERT INTO MyExcelTable (FName, LName, Address) VALUES (#FName, #LName, #Address)")
{
Connection = conn
};
conn.Open();
if (conn.State == ConnectionState.Open)
{
// you should always use parameterized queries to avoid SQL Injection
cmd.Parameters.Add("#FName", OleDbType.VarChar).Value = fstName;
cmd.Parameters.Add("#LName", OleDbType.VarChar).Value = lstName;
cmd.Parameters.Add("#Address", OleDbType.VarChar).Value = adres;
try
{
cmd.ExecuteNonQuery();
MessageBox.Show(#"Data Added");
conn.Close();
}
catch (OleDbException ex)
{
MessageBox.Show(ex.Source + "\n" + ex.Message);
conn.Close();
}
}
else
{
MessageBox.Show(#"Connection Failed");
}
}
}
}

try this it will work if you are using access as your database
try
{
OleDbCommand command = new OleDbCommand();
command.Connection = connection;
command.CommandText = "INSERT INTO REPORT (patientName,tel,hostel,id no,department,diagnose,gender) values(#patientName,#tel,#hostel,#id no,#department,#diagnose,#gender)";
connection.Open();
command.Parameters.AddWithValue("#patientName", textBox1.Text);
command.Parameters.AddWithValue("#tel", textBox2.Text);
command.Parameters.AddWithValue("#hostel", textBox3.Text);
command.Parameters.AddWithValue("#id no", textBox4.Text);
command.Parameters.AddWithValue("#department", textBox5.Text);
command.Parameters.AddWithValue("#diagnose", richTextBox1.Text);
command.Parameters.AddWithValue("#gender", textBox6.Text);
command.ExecuteNonQuery();
connection.Close();
MessageBox.Show("Patient record Have been save successfully....");
}
catch (Exception ex)
{
MessageBox.Show("error" + ex);
}

Insert data in to access database with C#

For a program I'm making, I want to add the countrycode, the zipcode of the city and the name of the city in a table. If this information is already in the table, nothing needs to happen.
However, new records won't insert in my table.
For example: with only 'BE, '3580', 'Beringen' in my table. I start my program.
First I insert the values that are already in my table and nothing happends.
Second I try to add a new value (for example: ('BE' '3500', 'Hasselt')). I get the messagebox with: "Data added succesfully!".
After that, I try to add the same value as before ('BE' '3500', 'Hasselt'). My program does nothing.
But when I open Access, to take a look in the table. No new data was added.
What did I do wrong?
connection.ConnectionString = #"Provider = Microsoft.Jet.OLEDB.4.0; Data Source = DeJongDatabase.mdb; Persist Security Info = True";
This is the rest of my code
static class Zipcodes
{
public static void checkAndSavePostCode(String country, String zipcode, string city)
{
Globals.connection.Open();
OleDbCommand command = new OleDbCommand();
command.Connection = Globals.connection;
command.CommandText = string.Format("SELECT * FROM Zipcodes WHERE CountryCode = #countryCode AND City= #city AND Zipcode= #zipcode");
command.Parameters.AddWithValue("#countyCode", country);
command.Parameters.AddWithValue("#city", city);
command.Parameters.AddWithValue("#zipcode", zipcode);
OleDbDataReader postcodeReader = command.ExecuteReader();
bool exists = false;
while (postcodeReader.Read())
{
exists = true;
}
postcodeReader.Close();
command.Dispose();
Globals.connection.Close();
OleDbCommand writeCommand = new OleDbCommand();
writeCommand.Connection = Globals.connection;
try
{
Globals.connection.Open();
if (!exists)
{
if (Globals.connection.State == System.Data.ConnectionState.Open)
{
/*writeCommand.CommandText = "INSERT INTO Zipcodes(CountryCode, ZipCode, City) VALUES(#countryCode, #zipcode, #city)";
writeCommand.Parameters.AddWithValue("#countyCode", country);
writeCommand.Parameters.AddWithValue("#city", city);
writeCommand.Parameters.AddWithValue("#zipcode", zipcode); */
writeCommand.CommandText = "INSERT INTO Zipcodes(CountryCode, ZipCode, City) VALUES(?, ?, ?)";
writeCommand.Parameters.Add(new OleDbParameter("#countryCode", OleDbType.VarChar)).Value = country;
writeCommand.Parameters.Add(new OleDbParameter("#zipcode", OleDbType.VarChar)).Value = zipcode;
writeCommand.Parameters.Add(new OleDbParameter("#city", OleDbType.VarChar)).Value = city;
if (writeCommand.ExecuteNonQuery() > 0)
{
MessageBox.Show("Data saved successfuly...!");
}
}
else
{
MessageBox.Show("FAILED");
}
}
}
catch(OleDbException ex)
{
MessageBox.Show(ex.Source);
MessageBox.Show(ex.ToString());
}
finally
{
Globals.connection.Close();
}

This works fine for me.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
namespace WindowsFormsApplication2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
OleDbConnection conn;
conn = new OleDbConnection(#"Provider=Microsoft.Jet.OleDb.4.0;Data Source=C:\Users\your_path_here\Northwind.mdb");
conn.Open();
OleDbCommand cmd = conn.CreateCommand();
cmd.CommandText = #"INSERT INTO MyExcelTable([Fname], [Lname], [Address])VALUES('" + textBox1.Text + "', '" + textBox2.Text + "','" + textBox3.Text + "')";
cmd.ExecuteNonQuery();
conn.Close();
}
public OleDbConnection myCon { get; set; }
private void button2_Click(object sender, EventArgs e)
{
OleDbConnection conn = new OleDbConnection();
conn.ConnectionString = #"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\Ryan\Desktop\Coding\Microsoft Access\Northwind.mdb";
string fstName = textBox1.Text.Trim();
string lstName = textBox2.Text.Trim();
string adres = textBox3.Text.Trim();
OleDbCommand cmd = new OleDbCommand(#"INSERT INTO MyExcelTable (FName, LName, Address) VALUES (#FName, #LName, #Address)")
{
Connection = conn
};
conn.Open();
if (conn.State == ConnectionState.Open)
{
// you should always use parameterized queries to avoid SQL Injection
cmd.Parameters.Add("#FName", OleDbType.VarChar).Value = fstName;
cmd.Parameters.Add("#LName", OleDbType.VarChar).Value = lstName;
cmd.Parameters.Add("#Address", OleDbType.VarChar).Value = adres;
try
{
cmd.ExecuteNonQuery();
MessageBox.Show(#"Data Added");
conn.Close();
}
catch (OleDbException ex)
{
MessageBox.Show(ex.Source + "\n" + ex.Message);
conn.Close();
}
}
else
{
MessageBox.Show(#"Connection Failed");
}
}
}
}

C# Insert Into syntax error

I am trying to insert data into a table in MS Access. I keep getting the error Missing semicolon (;) at end of SQL statement. or a different error saying that i my Insert query needs to have a value or table in it. Here is my code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.OleDb;
using System.Data.SqlClient;
namespace MiddleWare
{
public partial class Sales : Form
{
public Sales()
{
InitializeComponent();
}
private void btnUpdate_Click(object sender, EventArgs e)
{
int empId = int.Parse(txtEmpID.Text);
string cmdText = #"INSERT INTO [Sales]
([Printers], [Ink], [Paper])
VALUES (#Printers,#Ink,#Paper)
SELECT #EmpID FROM (Emplopyee)";
using (OleDbConnection con = new OleDbConnection(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=\\cp-stud-nas1\users\mat72462\Documents\SalesData.accdb"))
using (OleDbCommand cmd = new OleDbCommand(cmdText, con))
{
con.Open();
cmd.Parameters.AddWithValue("#Printers", OleDbType.VarWChar).Value = txtPrinters.Text;
cmd.Parameters.AddWithValue("#Ink", OleDbType.VarWChar).Value = txtInk.Text;
cmd.Parameters.AddWithValue("#Paper", OleDbType.VarWChar).Value = txtPaper.Text;
cmd.Parameters.AddWithValue("#EmpID", OleDbType.VarWChar).Value = txtEmpID.Text;
cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
cmd.Parameters.AddWithValue("#EmpID", txtEmpID.Text);
cmd.CommandText = "SELECT [Total Sales] FROM Sales WHERE EmpID=#EmpID";
string result = cmd.ExecuteScalar().ToString();
MessageBox.Show(result);
}
}
private void Sales_Load(object sender, EventArgs e)
{
// TODO: This line of code loads data into the 'DataSet1.DataTable1' table. You can move, or remove it, as needed.
this.DataTable1TableAdapter.Fill(this.DataSet1.DataTable1);
}
private void btnReport_Click(object sender, EventArgs e)
{
OleDbConnection con = new OleDbConnection(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=\\cp-stud-nas1\users\mat72462\Documents\SalesData.accdb");
{
this.DataTable1TableAdapter.Fill(this.DataSet1.DataTable1);
this.reportViewer1.RefreshReport();
}
}
}
}

You should seperate the queries by semicolon
string cmdText = #"INSERT INTO [Sales]
([Printers], [Ink], [Paper])
VALUES (#Printers,#Ink,#Paper);
SELECT #EmpID FROM (Emplopyee)";
Also you can't pass the column name as parameter. In that case use dynamic query.

you should change the query to this:
string cmdText = #"INSERT INTO [Sales]
([Printers], [Ink], [Paper], [EmpID])
VALUES (#Printers,#Ink,#Paper,
SELECT EmpID FROM (Employee) )";

It most likely should read:
string cmdText = #"INSERT INTO [Sales]
([Printers], [Ink], [Paper], [EmpID])
VALUES (#Printers, #Ink, #Paper, #EmpID)";

The "cmd.Paramter.AddWithValue" are unnecessary.
Try formatting your cmdText as
cmd = "INSERT INTO [Sales] ([Printers], [Ink], [Paper])
VALUES (" + txtPrinters.Text + " ," + txtInk.Text + ", " + txtPaper.Text + ")
This clears up confusion of "cmd.Paramter.AddWithValue" duplicating or overriding values.
Rewritten btnUpdate_Click (also not sure if Emplopyee is a typo or not)
private void btnUpdate_Click(object sender, EventArgs e)
{
using (OleDbConnection con = new OleDbConnection(#"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=\\cp-stud-nas1\users\mat72462\Documents\SalesData.accdb"))
using (OleDbCommand cmd = new OleDbCommand(cmdText, con))
{
con.Open();
cmd = "INSERT INTO [Sales] ([Printers], [Ink], [Paper]) VALUES (" + txtPrinters.Text + " ," + txtInk.Text + ", " + txtPaper.Text + ") SELECT " + textEmpID.Text + " FROM (Emplopyee)";
cmd.ExecuteNonQuery();
cmd.CommandText = "SELECT [Total Sales] FROM Sales WHERE EmpID=#EmpID";
string result = cmd.ExecuteScalar().ToString();
MessageBox.Show(result);
}
}

CS1503 C# Argument 1: cannot convert from 'string' to 'System.Data.SqlClient.SqlCommand'

CS1503 C# Argument 1: cannot convert from 'string' to 'System.Data.SqlClient.SqlCommand'
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace DataEntry
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
SqlConnection con = new SqlConnection(#"C:\USERS\ARUNKUMARREDDY\DOCUMENTS\Cons.accdb");
private void Form1_Load(object sender, EventArgs e)
{
// TODO: This line of code loads data into the 'dataSet1.callsheet'
// table. You can move, or remove it, as needed.
this.callsheetTableAdapter.Fill(this.dataSet1.callsheet);
}
private void button2_Click(object sender, EventArgs e)
{
con.Open();
SqlDataAdapter sda = new SqlDataAdapter(#"Insert into Aplomb (ID,Vendor
Name,Consultancy Name,Email ID,Phone No,Role,
Client,Job Location,Date)values('"+textBox1.Text+ "','" +
textBox2.Text + "','" + textBox3.Text + "','" +
textBox4.Text + "','" + textBox5.Text + "','" +
textBox6.Text + "','" + textBox7.Text + "')con");
sda.SelectCommand.ExecuteNonQuery();
con.Close();
MessageBox.Show("saved successfuly");
}
}
}

Here some code it might help you
using (SqlConnection conn = new SqlConnection("connectionString"))
{
// Open Connection
conn.Open();
// Define Sql Command
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "SQL Query";
cmd.Connection = conn;
// Your Adapter, Editted you are insert not get Data Comment
//SqlDataAdapter adapter = new SqlDataAdapter();
//adapter.SelectCommand = cmd;
cmd.ExecuteNonQuery();
}
But still you should check your code properly....

Gridview not updating on pageload

I have a gridview does not update on pageload. If you insert a value into the table, the page posts back and the gridview remains the same. All tho the record is inserted into the database. I'm fairly new to ADO.NET, any suggestions would be much appreciated.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Data;
using System.Configuration;
public partial class Equip_DB : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GridView1.DataBind();
}
string cs = ConfigurationManager.ConnectionStrings["NIC"].ConnectionString;
using (SqlConnection con = new SqlConnection(cs))
{
con.Open();
SqlCommand showAll = new SqlCommand("SELECT * FROM Equiptment", con);
SqlDataReader reads = showAll.ExecuteReader();
GridView1.DataSource = reads;
GridView1.DataBind();
}
}
protected void Button1_Click(object sender, EventArgs e)
{
string cs = ConfigurationManager.ConnectionStrings["NIC"].ConnectionString;
SqlConnection con = new SqlConnection(cs);
//INSERT INTO Equiptment VALUES ('2', 'Hammers', '24')
string query = "INSERT INTO Equiptment VALUES ('"+
equipAmount.Text +"', '"+
equipType.Text + "', '" +
DropDownList1.SelectedValue +"')";
AddContract.Visible = true;
SqlCommand cmd = new SqlCommand(query, con);
try
{
con.Open();
cmd.ExecuteNonQuery();
}
catch {
con.Close();
}
}
}

You are not binding gridview with updated content.
protected void Button1_Click(object sender, EventArgs e)
{
string cs = ConfigurationManager.ConnectionStrings["NIC"].ConnectionString;
SqlConnection con = new SqlConnection(cs);
//INSERT INTO Equiptment VALUES ('2', 'Hammers', '24')
string query = "INSERT INTO Equiptment VALUES ('"+
equipAmount.Text +"', '"+
equipType.Text + "', '" +
DropDownList1.SelectedValue +"')";
AddContract.Visible = true;
SqlCommand cmd = new SqlCommand(query, con);
try
{
con.Open();
cmd.ExecuteNonQuery();
con.Close();
//GRID LOAD CODE GOES HERE
using (SqlConnection con = new SqlConnection(cs))
{
con.Open();
SqlCommand showAll = new SqlCommand("SELECT * FROM Equiptment", con);
SqlDataReader reads = showAll.ExecuteReader();
GridView1.DataSource = reads;
GridView1.DataBind();
}
///////////////////////
}
catch {
con.Close();
}
}
}