Checkbox OnCheckedChange event with postback?

Question

I have a gridview with checkbox controls as columns and with Autopostback='true' for inserting to db. Everyting works fine except when i "change pages" - Postback (?)

My checked checkboxes gets unchecked when I go back to the page.

My Page_Load have a !IsPostBack and then i bound my gridview (gwPlanning)

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        BindGridViewPlanning();
    }
}

and my code behind:

protected void myCheckBox_OnCheckedChange(object sender, EventArgs e)
{

    CheckBox myCheckBox = (CheckBox)sender;
    GridViewRow row = (GridViewRow)myCheckBox.NamingContainer;

    string ThisWeekMinus2 = row.Cells[1].Text;
    bool status = myCheckBox.Checked;

    string CS = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
    using (SqlConnection con = new SqlConnection(CS))
    {
        SqlCommand cmd = new SqlCommand("UPDATE [BI_Planning].[dbo].[tblPlanning] SET [This Week - 2] = @IsActive WHERE ActivityID = @ID  ", con);
        cmd.Parameters.Add("@IsActive", SqlDbType.Bit).Value = myCheckBox.Checked;
        cmd.Parameters.Add("@ID", SqlDbType.Int).Value = ThisWeekMinus2;
        con.Open();
        cmd.ExecuteNonQuery();
        con.Close();

    }        

}

any idea what i'm missing?

Answer 1

The solution was just to add:

Checked='<%#Convert.ToBoolean(Eval("....YourColumn...."))%>

<asp:CheckBox ID="CheckBox1" AutoPostBack="true"  Checked='<%#Convert.ToBoolean(Eval("....YourColumn...."))%> OnCheckedChanged="myCheckBox_OnCheckedChange" runat="server" Style="text-align: center" />