Operation must use an updateable query.

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Why error is given in the website when I uploaded the source file.
Please instruct me for this.

Error - Operation must use an updateable query.

My Code for update is looking like given below

C#

void submit(Object sender, EventArgs e)
{
  con.Open();
  string va=d1.SelectedItem.Value;
  com=con.CreateCommand();
  com.CommandText="UPDATE notification SET notice = '" + ta1.Value.Replace("\'","\'\'") + "' where id='" + va + "'";
  //com.CommandText="UPDATE notification SET notice = '" + ta1.Value + "' where id='" + va + "'";
  try
  {
    com.ExecuteNonQuery();
    System.Web.UI.WebControls.Label lbl1=new System.Web.UI.WebControls.Label();
    lbl1.ForeColor=System.Drawing.Color.Yellow;
    lbl1.BackColor=System.Drawing.Color.Blue;
    lbl1.Text="Your record SUBMITED sucessfully";
    ph1.Controls.Add(lbl1);
  }
  catch(Exception ex)
  {
    Response.Write(ex.Message);
  }
  con.Close();
}

Posted 21-Oct-11 22:13pm

Janardan Pandey

Updated 21-Oct-11 22:24pm

André Kraak

v3

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Bala Selvanayagam 22-Oct-11 4:48am

Did you try googling...

Just did a google and this applicable, if yours is access database

http://support.microsoft.com/kb/175168

What is your database ?

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OriginalGriff · Answer 1 · 2011-10-21T22:20:00

Try re-writing it so that it uses a Parametrized query instead:

C#

com=con.CreateCommand();
com.CommandText="UPDATE notification SET notice=@NO where id=@ID";
com.Parameters.AddWithValue("@NO", ta1.Value);
com.Parameters.AddWithValue("@ID", va);

This will remove potential problems from your user input (including an SQL Injection attack) and may well cure your problem. And make it easier to read...

If it doesn't, then you need to check that the table name is right, the two column names are right, and the the record exists in the db.