grid + textbox + autopostback + javascript focus

I have a grid with text box,

I change the text box to be AutoPostBack="true"

when I change the data I have event that insert the data to the DB.

Code:

---

  protected void mark_TextChanged(object sender, EventArgs e)
    {

        TextBox t = (TextBox)sender;
        GridViewRow grdRow = (GridViewRow)t.Parent.Parent;
  Label l = (Label)grdRow.FindControl("questionID");
// HERE I INSERT THE DATA TO THE DB
//TRY TO GO TO THE TEXT BOX IN THE NEXT ROW
      grdRow = new GridViewRow(grdRow.RowIndex + 1,grdRow.DataItemIndex,DataControlRowType.DataRow, DataControlRowState.Normal);         
                      l  = (Label)grdRow.FindControl("questionID"); //BREAK HERE
                      Page.ClientScript.RegisterStartupScript(this.GetType(), "aaa", "document.getElementById('" + l.ClientID + "').focus()", true);

---

how can I go th the next row in the grid.

thanks!

Isn't that going to be super inefficiant, because every keystroke in your text box will result in a call to the db?

Add an 'update' or 'insert' column to your grid. Let the user type into the textbox in peace and have him click the update button to perform the database transaction.

That will also take care of the 'next' row, as an update button exists for each row in the grid.