Edit and Delete button in grid view

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1" DataKeyNames="bedID">
           <Columns>
                <asp:CommandField ShowEditButton="True" />
                <%--<asp:BoundField DataField="studentID" HeaderText="studentID" InsertVisible="False"
                    ReadOnly="True" SortExpression="studentID" />--%>
                <asp:BoundField DataField="bedID" HeaderText="Bed ID" SortExpression="bedID" />
                <asp:BoundField DataField="date" HeaderText="Registered Date" SortExpression="date" />
                <asp:BoundField DataField="name" HeaderText="Name" SortExpression="name" />
                <asp:BoundField DataField="city" HeaderText="City" SortExpression="city" />
                <asp:BoundField DataField="state" HeaderText="State" SortExpression="state" />
                <asp:BoundField DataField="zipcode" HeaderText="Pin Code" SortExpression="zipcode" />
                <asp:BoundField DataField="dobDate" HeaderText="Birth Date" SortExpression="dobDate" />
                <asp:BoundField DataField="dobMonth" HeaderText="Birth Month" SortExpression="dobMonth" />
                <asp:BoundField DataField="dobYear" HeaderText="Birth Year" SortExpression="dobYear" />
                <asp:BoundField DataField="marital_status" HeaderText="Marital Status" SortExpression="marital_status" />
                <asp:BoundField DataField="phone1" HeaderText="Phone1" SortExpression="phone1" />
                <asp:BoundField DataField="phone2" HeaderText="Phone2" SortExpression="phone2" />
                <asp:BoundField DataField="email" HeaderText="Email" SortExpression="email" />
            </Columns>
        </asp:GridView>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:DBNameConnectionString %>"
            SelectCommand="SELECT columns FROM [table_name]"
            InsertCommand="INSERT INTO [table name] (Columns) VALUES (@)"
            UpdateCommand="UPDATE [table_name] SET[columns]  WHERE [ID] = @ID">
           
            <%--<DeleteParameters>
                <asp:Parameter Name="bedID" Type="Int32"/>
            </DeleteParameters>--%>
            <UpdateParameters>
                <asp:Parameter Name="column name" Type="String" />
                <asp:Parameter Name="" Type="String" />
                <asp:Parameter Name="" Type="String" />
                <asp:Parameter Name="ID" Type="Int32" />
            </UpdateParameters>
            <InsertParameters>
                <asp:Parameter Name="column name" Type="String" />
                <asp:Parameter Name="" Type="String" />
                <asp:Parameter Name="" Type="String" />
                <asp:Parameter Name="ID" Type="Int32" />
            </InsertParameters>
        </asp:SqlDataSource>