Question

Possible Duplicate:
Data not writing out to Database

I’m trying to update a bit field in my database on a checkbox’s checkedchanged event. When it gets checked, it sends a 1. When it is unchecked, it sends a 0. Now I’m not sure why, but these changes only get saved SOME of the time. Would this have anything to do with the “!IsPostBack” ?

 protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        using (SqlConnection connection = new SqlConnection(connectionString.ToString()))
        {
            connection.Open();
            dataAdapter = new SqlDataAdapter("SELECT * FROM SecureOrders", connection);
            dataSet = new DataSet();             
            dataAdapter.Fill(dataSet, "SecureOrders");
            DataView source = new DataView(dataSet.Tables[0]);
            DefaultGrid.DataSource = source;
            DefaultGrid.DataBind();
            connection.Close();
        }
    }
}

protected void CheckBoxProcess_CheckedChanged(object sender, EventArgs e)
{
    bool update;
    string checkedString = "UPDATE SecureOrders SET processed = 1 WHERE fName LIKE '%" + DefaultGrid.SelectedRow.Cells[2].Text + "%' AND lName LIKE '% " + DefaultGrid.SelectedRow.Cells[3].Text + "%'";
    string uncheckedString = "UPDATE SecureOrders SET processed = 0 WHERE fName LIKE '%" + DefaultGrid.SelectedRow.Cells[2].Text + "%' AND lName LIKE '% " + DefaultGrid.SelectedRow.Cells[3].Text + "%'";
    CheckBox cb = (CheckBox)sender;
    GridViewRow gvr = (GridViewRow)cb.Parent.Parent;
    DefaultGrid.SelectedIndex = gvr.RowIndex;
    update = Convert.ToBoolean(DefaultGrid.SelectedValue);

    orderByString = orderByList.SelectedItem.Value;
    fieldString = searchTextBox.Text;



    connectionString = rootWebConfig.ConnectionStrings.ConnectionStrings["secureodb"];

    using (SqlConnection connection = new SqlConnection(connectionString.ToString()))
    {
        connection.Open();
        SqlCommand checkedCmd = new SqlCommand(checkedString, connection);
        SqlCommand uncheckedCmd = new SqlCommand(uncheckedString, connection);

        if (cb.Checked == true)
        {
            checkedCmd.ExecuteNonQuery();

        }
        else
        {
            uncheckedCmd.ExecuteNonQuery();
        }

        connection.Close();
    }

Answer 1

I would recommend setting “EnableViewState” to false on your DataView, and then moving the code from the if (!IsPostBack) section to your page’s Pre_Init event. I think that will solve your problem and possibly also help your postbacks go faster.