Time stamping in acess db using c#

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C#

{OleDbConnection mycon = new OleDbConnection();

        OleDbCommand command = new OleDbCommand();
        command.CommandText = "INSERT INTO Table1 (Emp_ID, Asset_ID, Actual_Start) VALUES (?, ?, ?)";

        command.Parameters.Add("@Emp_ID", OleDbType.VarChar, 80).Value = textBox1.Text;
        command.Parameters.Add("@Asset_ID", OleDbType.VarChar, 80).Value = textBox2.Text;
        command.Parameters.Add("@Actual_Start", OleDbType.Date).Value = DateTime.Now;

        command.Connection = mycon;
        mycon.Open();
        command.ExecuteNonQuery();
}

This is the code I have written. I got the error "ConnectionString property has not been initialized."

Posted 22-Jan-14 19:06pm

Member 10538358

Updated 22-Jan-14 19:11pm

Karthik_Mahalingam

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Karthik_Mahalingam · Accepted Answer · 2014-01-22T19:15:00

Solution 1

change your code to this

C#

command.CommandText = "INSERT INTO Table1 (Emp_ID, Asset_ID, Actual_Start) VALUES (@Emp_ID, @Asset_ID, @Actual_Start)";

but your error is regarding the connection string.
check this

OLEDB Connection strings/[^]
http://www.connectionstrings.com/access/[^]

Posted 22-Jan-14 19:15pm

Karthik_Mahalingam

Comments

Member 10538358 23-Jan-14 1:53am

@KARTHIK, well this is embarassing but I had acccidentally deleted the conection string and it drew my attention pretty late. Thanks anyways.

Karthik_Mahalingam 23-Jan-14 2:05am

Its ok , it happens sometimes :)
welcome :)

Member 10538358 · Accepted Answer · 2014-01-22T19:51:00

private void button1_Click(object sender, EventArgs e)
{OleDbConnection mycon = new OleDbConnection();
mycon.ConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Dinesh\C#\GIS_Power\WindowsFormsApplication1\bin\Power_DB1.accdb";

OleDbCommand command = new OleDbCommand();
command.CommandText = "INSERT INTO Table1 (Emp_ID, Asset_ID, Actual_Start) VALUES (?, ?, ?)";

command.Parameters.Add("@Emp_ID", OleDbType.VarChar, 80).Value = textBox1.Text;
command.Parameters.Add("@Asset_ID", OleDbType.VarChar, 80).Value = textBox2.Text;
command.Parameters.Add("@Actual_Start", OleDbType.Date).Value = DateTime.Now;

mycon.Open();
command.Connection = mycon;
command.ExecuteNonQuery();