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01 using System;
02 using System.Collections.Generic;
03 using System.ComponentModel;
04 using System.Data;
05 using System.Drawing;
06 using System.Linq;
07 using System.Text;
08 using System.Windows.Forms;
09 using System.Data.OleDb;
10
11 namespace WindowsFormsApplication1
12 {
13 public partial class Form1 : Form
14 {
15 private OleDbConnection mycon;
16 public Form1()
17 {
18
19 mycon = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Documents and Settings\user\My Documents\login.mdb;Persist Security Info=False");
20 InitializeComponent();
21 mycon.Open();
22
23
24
25 }
26
27 private void textBox1_TextChanged(object sender, EventArgs e)
28 {
29
30 }
31
32 private void passname_TextChanged(object sender, EventArgs e)
33 {
34 }
35
36 private void login_Click(object sender, EventArgs e)
37 {
38 string x =usename.Text;
39 DataSet ds = new DataSet();
40 OleDbDataAdapter adapter =
41 new OleDbDataAdapter("Select * from login where username="+usename.Text+"and password="+passname.Text, mycon);
42
43 MessageBox.Show("The username is "+usename.Text+" and the password is"+passname.Text ,"Test Message");
44 }
45 }
46
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01 private void login_Click(object sender, EventArgs e)
02 {
03 OleDBDataReader dr = null;
04 OleDBCommand cmd = null;
05 string cmdStr = "SELECT * FROM login WHERE username='"+username.Text+"' and password='"passname.Text+"' LIMIT 1";
06
07 cmd = new OleDBCommand(cmdStr,mycon);
08 dr = cmd.ExecuteNonReader();
09 cmd.Dispose();
10 //Check the datareader here...if dr returns 1 record...user is in DB
11 if(dr.Read() == true)
12 {
13 MessageBox.Show("Login Successful");
14 //User is in DB... do work here
15 }
16 else
17 {
18 MessageBox.Show("Invalid Credentials, Please Re-Enter");
19 }
20 dr.Dispose();
21
22 }
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I have a database name details.mdb in Microsoft Office Access database in this data base there is one table name info it contain two coloum name and age.
I have form in that form there are two text box name TextBox1,TextBox2 and a Button1.
I want that the information entered in both textbox should stored in details.mdb database.
So please give me total code to do this i am new to C# plz help
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
namespace Project2
{
public partial class Form1 : Form1
{
public Form1()
{
InitializeComponent();
}
private void Button1_Click(object sender, EventArgs e)
{
//what should i write here so that it store in details.mdb database.
}
}
}
Re: How to insert data in Microsoft Office Access database using C#?
Posted on: 10 Apr 2009
Dear
Write the following code in Button_Click event :
string constr=@"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=d:\details.mdb";
string cmdstr="insert into info(name,age)values(? ,?)";
OleDbConnection con=new OleDbConnection(constr);
OleDbCommand com=new OleDbCommand(cmdstr,con);
con.Open();
com.Parameters.AddWithValue("?",textBox1.Text);
com.Parameters.AddWithValue("?",int.Parse(textBox3.Text));
com.ExecuteNonQuery();
con.Close();
Import the following namespaces :
using System.Data.OleDb;
Thanks
From
Rajendra
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Design the form as above with a DataGridView, 3 Labels, 3 TextBoxes, 10 buttons.
Note: In order to perform operations on M.S.Access-2007 records, M.S.Office-2007 should be installed in your system.
Introduction:
As we want to use OleDb Connection include the namespace:
'using System.Data.OleDb'
For accesing records from M.S.Access-2003 file we use 'Jet' driver,
But for accesing records from M.S.Access-2007 file we use 'Ace' driver.
In this application, we will search a record by taking input from the InputBox. For this we have to add reference to Microsoft.VisualBasic.
Adding a Reference:
Goto Project Menu ->Add Reference -> select 'Microsoft.VisualBasic' from .NET tab.
In order to use this we have to include the namespace:
'using Microsoft.VisualBasic'
Creating a primary key in the dataTable:
In this app. we use Find() method to search a record, which requires details of primarykey column for database tables; this is provided using statement: adapter.MissingSchemaAction = MissingSchemaAction.AddWithKey
But as we don't have any primarykey column in M.S.Access table, we have to create a primary key column in datatable.
Eg:
ds.Tables[0].Constraints.Add("pk_sno", ds.Tables[0].Columns[0], true);
Pointing to current record in dataTable:
After searching a record, we have to get the index of that record so that we can show next and previous records when we press '>>'(next) and '<<'(previous) buttons.
Eg:
rno= ds.Tables[0].Rows.IndexOf(drow);
-------------
Code:
using System;
using System.Data;
using System.Windows.Forms;
using System.Data.OleDb;
using Microsoft.VisualBasic;
namespace prash_access07
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
OleDbConnection con;
OleDbCommand cmd;
OleDbDataAdapter adapter;
DataSet ds;
int rno;
private void Form1_Load(object sender, EventArgs e)
{
con = new OleDbConnection(@" provider=Microsoft.ace.Oledb.12.0; data
source=E:\prash\stud.accdb;Persist Security Info=False");//stud.accdb->access07 filename
loaddata();
showdata();
}
void loaddata()
{
adapter = new OleDbDataAdapter("select * from student", con);
ds = new DataSet();//student-> table name in stud.accdb file
adapter.Fill(ds, "student");
ds.Tables[0].Constraints.Add("pk_sno", ds.Tables[0].Columns[0], true);//creating
primary key for Tables[0] in dataset
dataGridView1.DataSource = ds.Tables[0];
}
void showdata()
{
textBox1.Text = ds.Tables[0].Rows[rno][0].ToString();
textBox2.Text = ds.Tables[0].Rows[rno][1].ToString();
textBox3.Text = ds.Tables[0].Rows[rno][2].ToString();
}
private void btnFirst_Click(object sender, EventArgs e)
{
if (ds.Tables[0].Rows.Count > 0)
{
rno = 0;
showdata();
}
else
MessageBox.Show("no records");
}
private void btnPrevious_Click(object sender, EventArgs e)
{
if (ds.Tables[0].Rows.Count > 0)
{
if (rno > 0)
{
rno--;
showdata();
}
else
MessageBox.Show("First Record");
}
else
MessageBox.Show("no records");
}
private void btnNext_Click(object sender, EventArgs e)
{
if (ds.Tables[0].Rows.Count > 0)
{
if (rno < ds.Tables[0].Rows.Count - 1)
{
rno++;
showdata();
}
else
MessageBox.Show("Last Record");
}
else
MessageBox.Show("no records");
}
private void btnLast_Click(object sender, EventArgs e)
{
if (ds.Tables[0].Rows.Count > 0)
{
rno = ds.Tables[0].Rows.Count - 1;
showdata();
}
else
MessageBox.Show("no records");
}
private void btnInsert_Click(object sender, EventArgs e)
{
cmd = new OleDbCommand("insert into student values(" + textBox1.Text + ",' " + textBox2.Text + " ',' " + textBox3.Text + " ')", con);
con.Open();
int n = cmd.ExecuteNonQuery();
con.Close();
if (n > 0)
{
MessageBox.Show("record inserted");
loaddata();
}
else
MessageBox.Show("insertion failed");
}
private void btnSearch_Click(object sender, EventArgs e)
{
int n = Convert.ToInt32(Interaction.InputBox("Enter sno:", "Search", "20", 200, 200)
;
DataRow drow = ds.Tables[0].Rows.Find(n);
if (drow != null)
{
rno = ds.Tables[0].Rows.IndexOf(drow);
textBox1.Text = drow[0].ToString();
textBox2.Text = drow[1].ToString();
textBox3.Text = drow[2].ToString();
}
else
MessageBox.Show("Record not found");
}
private void btnUpdate_Click(object sender, EventArgs e)
{
cmd = new OleDbCommand("update student set sname='" + textBox2.Text + "',course='" + textBox3.Text + "' where sno=" + textBox1.Text, con);
con.Open();
int n = cmd.ExecuteNonQuery();
con.Close();
if (n > 0)
{
MessageBox.Show("Record Updated");
loaddata();
}
else
MessageBox.Show("Update failed");
}
private void btnDelete_Click(object sender, EventArgs e)
{
cmd = new OleDbCommand("delete from student where sno=" + textBox1.Text, con);
con.Open();
int n = cmd.ExecuteNonQuery();
con.Close();
if (n > 0)
{
MessageBox.Show("Record Deleted");
loaddata();
}
else
MessageBox.Show("Deletion failed");
}
private void btnClear_Click(object sender, EventArgs e)
{
textBox1.Text = textBox2.Text = textBox3.Text = "";
}
private void btnExit_Click(object sender, EventArgs e)
{
this.Close();
}
}
}
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