insert Query into msacess2003

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I am using the following code to insert form data into MSAcess2003 database:

private void button1_Click(object sender, EventArgs e)
       {
           try
           {
               OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source= |DataDirectory|/Schooldb.mdb");
               conn.Open();
               OleDbCommand cmd = new OleDbCommand("insert into StudentReg(Class,Current_date)values('"+comboBox1.SelectedItem+"','"+dateTimePicker1.Text+"')", conn);

               cmd.CommandType = CommandType.Text;
               cmd.ExecuteNonQuery();
               MessageBox.Show("Data is inserted!!");
           }
           catch(Exception ex)
           {
               MessageBox.Show(ex.ToString());

           }


       }

but i am getting the Error:
Syntex Error in (insert into)

Posted 8-Apr-12 20:51pm

Member 8233601

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2 solutions

Solution 1

Hi,
I think Error Cause Because u use keyword Class in ur query Change ur column name and Try It
Best Luck

Posted 8-Apr-12 20:56pm

Nilesh Patil Kolhapur

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OriginalGriff · Accepted Answer · 2012-04-08T20:59:00

Firstly, don't do it like that - use parametrized queries instead.
Secondly, Don't use SelectedItem unless you know it is a string,
Thirdly, Don't convert dates unnecessarily:
OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source= |DataDirectory|/Schooldb.mdb");
conn.Open();

C#

OleDbCommand cmd = new OleDbCommand("INSERT INTO StudentReg (Class, Current_date) VALUES (@CL, @CD)", conn);
cmd.Parameters.AddWithValue("@CL", comboBox1.SelectedText);
cmd.Parameters.AddWithValue("@CD", dateTimePicker1.Value);
cmd.ExecuteNonQuery();

Fourthly, clean up behind yourself! Connnections and COmmands are valuablke resources - you should be Closing and Dosposing:

C#

using (OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source= |DataDirectory|/Schooldb.mdb"))
   {
   conn.Open();
   using (OleDbCommand cmd = new OleDbCommand("INSERT INTO StudentReg (Class, Current_date) VALUES (@CL, @CD)", conn))
      {
      cmd.Parameters.AddWithValue("@CL", comboBox1.SelectedText);
      cmd.Parameters.AddWithValue("@CD", dateTimePicker1.Value);
      cmd.ExecuteNonQuery();
      }
   }