<td class="detailsTextbox" colspan="3">
 <asp:CheckBox ID="chkActiveA" runat="server" Checked="true" />
 <asp:TextBox ID="txtActiveA" Visible="false" runat="server"
  Text='<%# Bind("ACTIVE_FLAG") %>' />
</td>

((TextBox)dvEdit.FindControl("txtActiveA")).Text =
 ((CheckBox)dvEdit.FindControl("chkActiveA")).Checked ? "1" : "0";
    ((TextBox)dvEdit.FindControl("txtRoleA")).Text =
  ((DropDownList)dvEdit.FindControl("ddlRoleA")).DataValueField;