oncheckbox check assign respective rights

I have four checkboxes such as for Add, Edit, View and Delete. which is inside gridview

Now I have a table named (WMS_menu_rights) where I want to store this values as

checked:- Y

Not checked: N.

I want to assign respective rights to the respective USERS on button click.

Here is my gridview image which somethings looks like below

Here is my HTML of the gridview:-

<cc2:Grid ID="GrdRights" runat="server" FolderStyle="../Styles/Grid/style_12"
                        AllowSorting="False" AutoGenerateColumns="False" AllowColumnResizing="true" AllowAddingRecords="false"
                        AllowMultiRecordSelection="true" OnRowDataBound="GrdRights_RowDataBound" ViewStateMode="Enabled"
                        PageSize="100">
                        <ClientSideEvents OnClientSelect="FunMonthList" />
                        <ScrollingSettings ScrollHeight="400px" />
                        <Columns>
                            <cc2:Column ID="Column1" DataField="MKEY" ShowHeader="false" HeaderText="Select" ReadOnly="true"
                                Width="5%" runat="server">
                                <TemplateSettings TemplateId="TemplateWithCheckbox" />
                            </cc2:Column>

                            <cc2:Column ID="Column2" DataField="parent_menu" HeaderText="MENU" Visible="true"
                                ReadOnly="true" Width="10%" runat="server">
                            </cc2:Column>
                            <cc2:Column ID="Column4" DataField="child_menu_mkey" Visible="false" ReadOnly="true"
                                Width="10%" runat="server">
                            </cc2:Column>
                            <cc2:Column ID="Column3" DataField="child_menu" HeaderText="SUB MENU" runat="server"
                                Visible="true" Width="30%">
                            </cc2:Column>

                              <cc2:Column ID="Column5" DataField="MKEY" ShowHeader="false" HeaderText="Select"                                                  ReadOnly="true" Width="5%" runat="server">
                                <TemplateSettings TemplateId="TemplateWithCheckbox" />
                            </cc2:Column>

                            <cc2:CheckBoxColumn Id="chkAdd" DataField="ADD_FLAG" ShowHeader="true" HeaderText="Add"
                                Width="5%" runat="server" Align="right">
                                <TemplateSettings TemplateId="TemplateWithChecAdd"  />
                            </cc2:CheckBoxColumn>

                            <cc2:CheckBoxColumn Id="chkEdit" DataField="MODIFY_FLAG" ShowHeader="true" HeaderText="Edit"
                                Width="5%" runat="server" Align="right">
                                <TemplateSettings TemplateId="TemplateWithChecEdit" />
                            </cc2:CheckBoxColumn>

                            <cc2:CheckBoxColumn Id="ChkView" DataField="VIEW_FLAG" ShowHeader="true" HeaderText="View"
                                Width="6%" runat="server" Align="right">
                                <TemplateSettings TemplateId="TemplateWithChecView" />
                            </cc2:CheckBoxColumn>

                            <cc2:CheckBoxColumn Id="ChkDelete" DataField="DEL_FLAG" ShowHeader="true" HeaderText="Delete"
                                Width="8%" runat="server" Align="right"> 
                                <TemplateSettings TemplateId="TemplateWithChecDelete" />
                            </cc2:CheckBoxColumn>

                        </Columns>
                        <Templates>
                          <cc2:GridTemplate ID="TemplateWithCheckbox">
                                <Template>
                                    <asp:CheckBox runat="server" ID="ChkID" OnCheckedChanged="ChkID_CheckedChanged" ToolTip="<%# Container.Value %>" />
                                </Template>
                            </cc2:GridTemplate>
                            <cc2:GridTemplate ID="TemplateWithChecAdd">
                                <Template>
                                    <asp:CheckBox runat="server" ID="ChkIDAdd" ToolTip="<%# Container.Value %>"  />
                                </Template>
                            </cc2:GridTemplate>

                            <cc2:GridTemplate ID="TemplateWithChecView">
                                <Template>
                                    <asp:CheckBox runat="server" ID="ChkIDView" ToolTip="<%# Container.Value %>" />
                                </Template>
                            </cc2:GridTemplate>

                            <cc2:GridTemplate ID="TemplateWithChecEdit">
                                <Template>
                                    <asp:CheckBox runat="server" ID="ChkIDEdit" ToolTip="<%# Container.Value %>" />
                                </Template>
                            </cc2:GridTemplate>

                            <cc2:GridTemplate ID="TemplateWithChecDelete">
                                <Template>
                                    <asp:CheckBox runat="server" ID="ChkIDDelete" ToolTip="<%# Container.Value %>" />
                                </Template>
                            </cc2:GridTemplate>

                        </Templates>
                    </cc2:Grid>

Now how to write the code for this, that it should SAVE and assign the respective rights