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Grid: load data only on demand

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121048 Nov 5,2015 12:23 PM Nov 6,2015 04:25 AM ASP.NET Web Forms 1
loading
Tags: Grid
Jorge Pampin
Asked On November 5, 2015 12:23 PM

Hello,

There is a way to configure the Grid Control to load the data only with the code gridObj1.refreshContent(); and WebMethodAdaptor? I don't want the grid to load the data at begining.

Thanks!

Seeni Sakthi Kumar Seeni Raj [Syncfusion]
Replied On November 6, 2015 04:25 AM

Hi Jorge,

We can bind the dataSource to the Grid later using setModel, after binding the empty dataSource to the Grid at initial render. Please refer to the below code example.

<asp:Content runat="server" ID="BodyContent" ContentPlaceHolderID="MainContent">

    <ej:button id="ButtonNormal" type="Button" runat="server" clientsideonclick="btnClick" text="Button"></ej:button>

    <ej:grid id="EmployeesGrid" runat="server" width="1500px" allowpaging="true">

                <!--DataSource is Empty at intial Render-->

                <Columns>

                        <ej:Column Field="OrderID" IsPrimaryKey="true" HeaderText="Order ID" Width="80" />

                        . . .  .

                </Columns>      

            </ej:grid>

    <script>

        function btnClick(e) {

            $("#MainContent_EmployeesGrid").ejGrid({ dataSource: ej.DataManager({ url: "Default.aspx/Data", adaptor: new ej.WebMethodAdaptor() }) })

        }

    </script>
</asp:Content>

[Code Behind]

[WebMethod]

        [ScriptMethod(ResponseFormat = ResponseFormat.Json)]

        public static object Data(Syncfusion.JavaScript.DataManager value)

        {

            IEnumerable Data = OrderRepository.GetAllRecords();

            int count = Data.AsQueryable().Count();

            return new { result = Data, count = count };


        }


For your Convenience, we have prepared a sample that can be downloaded from the below location

Sample:  http://www.syncfusion.com/downloads/support/forum/121048/ze/EjGrid-312448390

Regards,
Seeni Sakthi Kumar S.

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