<asp:Content ID="Content3" ContentPlaceHolderID="ScriptContent" runat="server">
<script>
    $(document).ready(function () {

        var gridId = '<% HttpContext.Current.Response.Write(GridView1.ClientID); %>';
        var $grid = $('#' + gridId);

    });
</script>

<asp:GridView ID="GridView1" runat="server"
    ClientIDMode="AutoID" AutoGenerateColumns="false">
    <Columns>
        <asp:BoundField DataField="Id" />
        <asp:BoundField DataField="Name" />
        <asp:TemplateField>
            <ItemTemplate>
                <input type="button" class="btnEditar" value="Editar"
                        data-json='{"id":<%# Eval("Id") %>,"name":"<%# Eval("Name") %>"}'/>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

<input type="button" class="btnEditar" value="Editar"
                        data-json='{"id":<%# Eval("Id") %>,"name":"<%# Eval("Name") %>"}'/>

<script>
    $(document).ready(function () {


        $('.btnEditar').on('click', function () {
            var $btn = $(this);
            var data = $btn.data().json;

            alert("Jedi Name : " + data.name);
        })
    });
</script>

var $btn = $(this);

var data = $btn.data().json;