Retriving username and password from Access to C#.net

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Hi,
I need to retrive username and password from access to C#.net i'm using the following code but it is not working,

C#

public void login()
      {
 string file_name;
            file_name = Application.StartupPath + "\\" + "username.txt";
            System.IO.StreamWriter objwriter;
            objwriter = new System.IO.StreamWriter(file_name);
            objwriter.WriteLine(textBox1.Text);
            objwriter.Close();
            string nam;
            WeightBridge.Class1 obj = new WeightBridge.Class1();
            nam = obj.get();
            OleDbConnection con = new OleDbConnection(nam);
            //OleDbConnection con = new OleDbConnection("D://weightbridge.mdb");
            con.Open();
            OleDbCommand cmd = new OleDbCommand("SELECT UserName ,pwd FROM User WHERE UserName='" + textBox1.Text + "' AND Password='" + textBox2.Text + "'", con);
            OleDbDataReader dr = cmd.ExecuteReader();
            string userText = textBox1.Text;
            string passText = textBox2.Text;
            while (dr.Read())
            {
                if ((dr["UserName"].ToString() == userText) && (dr["Password"].ToString() == passText))
                {
                    this.Hide();
                    MasterPage mp = new MasterPage();
                    mp.Show();
                }
                else
                {
                    MessageBox.Show("Invalid username");

                }
            }
            dr.Close();
            con.Close();
}

Posted 2-Jan-13 20:23pm

Balamurugan1989

Updated 2-Jan-13 20:27pm

Prasad_Kulkarni

v2

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Comments

Prasad_Kulkarni 3-Jan-13 2:37am

You getting any error or what?

Balamurugan1989 3-Jan-13 2:40am

I'm getting tis error:
The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine.

2 solutions

Solution 1

Refer: HOW TO: FIX ERROR - "the 'microsoft.ace.oledb.12.0' provider is not registered on the local machine"[^]
Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine.[^]

Posted 2-Jan-13 20:41pm

Prasad_Kulkarni

Updated 2-Jan-13 20:44pm

v2

Comments

Balamurugan1989 3-Jan-13 6:13am

I have done it but its not working...

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Balamurugan1989 · Accepted Answer · 2013-01-07T00:30:00

private void button1_Click(object sender, EventArgs e)
{
if (textBox1.Text == "" && textBox2.Text == "")
{
MessageBox.Show("Enter the User name and Password");
// label6.Text ="Admin Name and Password Required.";
textBox1.Focus();
}
else
{
string nam;
WeightBridge.Class1 obj = new WeightBridge.Class1();
nam = obj.get();
nam="Provider=Microsoft.ACE.OLEDB.12.0;Data Source="+Application.StartupPath+"//weightbridge.accdb;Persist Security Info=False;";
OleDbConnection con = new OleDbConnection(nam);
con.Open();
OleDbCommand cmd = new OleDbCommand("SELECT UserName ,pwd FROM [User] WHERE UserName='" + textBox1.Text + "' AND pwd='" + textBox2.Text + "'", con);
OleDbDataReader dr = cmd.ExecuteReader();
string userText = textBox1.Text;
string passText = textBox2.Text;
if (dr.Read())
{

this.Hide();
MasterPage mp = new MasterPage();
mp.Show();

//login();
dr.Close();
con.Close();
}
else
{
MessageBox.Show("UserName/Password Invalid");
}