how can I add a checkbox column in an ASP.NET GridView so that I can check a row and hit a button to delete it?

for selecting all the check boxes in gridview you can use javascript like this


<pre lang="cs">

function SelectAllCheckboxes(spanChk)
{
var oItem = spanChk.children;
var theBox= (spanChk.type==&quot;checkbox&quot;) ?
spanChk : spanChk.children.item[0];
xState=theBox.checked;
elm=theBox.form.elements;

for(i=0;i&lt;elm.length;i++)
if(elm[i].type==&quot;checkbox&quot; &amp;&amp;
elm[i].id!=theBox.id)
{
if(elm[i].checked!=xState)
elm[i].click();
}
}


</pre>



this is the gridview with checkbox column ::-

<asp:GridView ID="gvCity" runat="server" AutoGenerateColumns="False" Width="99%"
                                    OnRowCommand="gvCity_RowCommand" OnRowEditing="gvCity_RowEditing" OnRowDeleting="gvCity_RowDeleting"
                                    AllowPaging="True" OnPageIndexChanging="gvCity_PageIndexChanging" CssClass="allgrids"
                                    HeaderStyle-BackColor="#ededec">
                                    <PagerSettings FirstPageText="First" NextPageText="Next" PreviousPageText="Previous"
                                        LastPageText="Last" />
                                    <PagerStyle HorizontalAlign="Right" />
                                    <Columns>
                                        <asp:TemplateField>
                                            <HeaderTemplate>
                                                <input id="chkAll" onclick="javascript:SelectAllCheckboxes(this);" runat="server"
                                                    type="checkbox" />
                                            </HeaderTemplate>
                                            <ItemTemplate>
                                                <asp:CheckBox ID="chkSelect" runat="server" />
                                            </ItemTemplate>
                                        </asp:TemplateField>
                                        <asp:TemplateField HeaderText="City">
                                            <ItemTemplate>
                                                <asp:Label ID="lblcity" runat="server" Text='<%#Eval("CITY_NAME") %>' />
                                            </ItemTemplate>
                                        </asp:TemplateField>
                                        <asp:TemplateField HeaderText="State">
                                            <ItemTemplate>
                                                <asp:Label ID="lblState" runat="server" Text="Andhra Pradesh" />
                                            </ItemTemplate>
                                        </asp:TemplateField>
                                        <asp:TemplateField HeaderText="Country">
                                            <ItemTemplate>
                                                <asp:Label ID="lblCountry" runat="server" Text="India" />
                                            </ItemTemplate>
                                        </asp:TemplateField>
                                        <asp:TemplateField HeaderText="Date Of Creation">
                                            <ItemTemplate>
                                                <asp:Label ID="lblDate" runat="server" Text='<%#Eval("Date") %>' />
                                            </ItemTemplate>
                                        </asp:TemplateField>
                                        <asp:TemplateField HeaderText="Actions">
                                            <ItemTemplate>
                                                <asp:LinkButton ID="lbtnEdit" runat="server" Text="Edit" ForeColor="Blue" CommandName="Edit"
                                                    CommandArgument='<%#Eval("CITY_ID") %>' />
                                                <asp:LinkButton ID="lbtnDelete" runat="server" Text="Delete" ForeColor="Blue" CommandName="Delete"
                                                    CommandArgument='<%#Eval("CITY_ID") %>' OnClientClick="return confirm('Are you sure you want to delete ?');" />

                                            </ItemTemplate>
                                        </asp:TemplateField>
                                    </Columns>
                                </asp:GridView>