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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Sales Consultant	Hanna Moos	Argentina	1 2 3 4 5
2	Sales Consultant	Jaime Yorres	Spain	1 2 3 4 5
3	Sales Representative	Matti Karttunen	Spain	1 2 3 4 5
4	Accountant	Patricio Simpson	Brazil	1 2 3 4 5
5	Sales Consultant	Patricio Simpson	Austria	1 2 3 4 5
6	Marketing Assistant	Matti Karttunen	Germany	1 2 3 4 5
7	Sales Agent	Patricio Simpson	Brazil	1 2 3 4 5
8	Sales Associate	Antonio Moreno	Austria	1 2 3 4 5
9	Sales Manager	Antonio Moreno	USA	1 2 3 4 5
10	Accountant	Jaime Yorres	Germany	1 2 3 4 5
11	Marketing Manager	Jaime Yorres	USA	1 2 3 4 5
12	Sales Representative	Matti Karttunen	Germany	1 2 3 4 5
13	Sales Consultant	Antonio Moreno	Brazil	1 2 3 4 5
14	Marketing Assistant	Jaime Yorres	England	1 2 3 4 5
15	Owner	Patricio Simpson	Austria	1 2 3 4 5
16	Accountant	Elizabeth Lincoln	Germany	1 2 3 4 5
17	Owner	Elizabeth Lincoln	Germany	1 2 3 4 5
18	Marketing Manager	Howard Snyder	Italy	1 2 3 4 5
19	Accountant	Pascale Cartrain	Italy	1 2 3 4 5
20	Sales Associate	Jaime Yorres	USA	1 2 3 4 5
21	Owner	Georg Pipps	Spain	1 2 3 4 5
22	Sales Manager	Matti Karttunen	Spain	1 2 3 4 5
23	Sales Associate	Paul Henriot	Spain	1 2 3 4 5
24	Marketing Manager	Antonio Moreno	Brazil	1 2 3 4 5
25	Sales Representative	Jaime Yorres	Argentina	1 2 3 4 5
26	Sales Representative	Elizabeth Lincoln	France	1 2 3 4 5
27	Accounting Manager	Elizabeth Lincoln	Argentina	1 2 3 4 5
28	Owner	Antonio Moreno	France	1 2 3 4 5
29	Sales Representative	Hanna Moos	Bulgaria	1 2 3 4 5
30	Sales Manager	Jaime Yorres	Italy	1 2 3 4 5
31	Sales Associate	Howard Snyder	France	1 2 3 4 5
32	Sales Associate	Howard Snyder	Germany	1 2 3 4 5
33	Sales Associate	Pascale Cartrain	Germany	1 2 3 4 5
34	Sales Manager	Jaime Yorres	Austria	1 2 3 4 5
35	Marketing Assistant	Hanna Moos	USA	1 2 3 4 5
36	Sales Representative	Howard Snyder	USA	1 2 3 4 5
37	Sales Associate	Paul Henriot	Brazil	1 2 3 4 5
38	Sales Representative	Elizabeth Lincoln	Austria	1 2 3 4 5
39	Marketing Manager	Elizabeth Lincoln	Brazil	1 2 3 4 5
40	Sales Representative	Paul Henriot	Austria	1 2 3 4 5
41	Sales Manager	Matti Karttunen	Italy	1 2 3 4 5
42	Sales Associate	Jaime Yorres	Austria	1 2 3 4 5
43	Sales Representative	Georg Pipps	Spain	1 2 3 4 5
44	Marketing Manager	Antonio Moreno	Bulgaria	1 2 3 4 5
45	Sales Manager	Georg Pipps	England	1 2 3 4 5
46	Sales Agent	Matti Karttunen	France	1 2 3 4 5
47	Sales Associate	Elizabeth Lincoln	Germany	1 2 3 4 5
48	Sales Manager	Paul Henriot	Germany	1 2 3 4 5
49	Sales Agent	Hanna Moos	Spain	1 2 3 4 5
50	Accountant	Antonio Moreno	Brazil	1 2 3 4 5
51	Accountant	Matti Karttunen	Brazil	1 2 3 4 5
52	Accounting Manager	Paul Henriot	Austria	1 2 3 4 5
53	Sales Agent	Georg Pipps	France	1 2 3 4 5
54	Sales Associate	Georg Pipps	Italy	1 2 3 4 5
55	Sales Representative	Howard Snyder	England	1 2 3 4 5
56	Sales Associate	Georg Pipps	Argentina	1 2 3 4 5
57	Sales Consultant	Elizabeth Lincoln	Argentina	1 2 3 4 5
58	Accountant	Jaime Yorres	Italy	1 2 3 4 5
59	Marketing Assistant	Elizabeth Lincoln	France	1 2 3 4 5
60	Sales Associate	Georg Pipps	England	1 2 3 4 5
61	Sales Consultant	Pascale Cartrain	USA	1 2 3 4 5
62	Owner	Elizabeth Lincoln	Germany	1 2 3 4 5
63	Sales Manager	Georg Pipps	USA	1 2 3 4 5
64	Accountant	Pascale Cartrain	Argentina	1 2 3 4 5
65	Accountant	Elizabeth Lincoln	USA	1 2 3 4 5
66	Sales Consultant	Jaime Yorres	Italy	1 2 3 4 5
67	Owner	Patricio Simpson	England	1 2 3 4 5
68	Sales Associate	Hanna Moos	Austria	1 2 3 4 5
69	Accountant	Jaime Yorres	Spain	1 2 3 4 5
70	Sales Manager	Pascale Cartrain	Spain	1 2 3 4 5
71	Sales Associate	Pascale Cartrain	Argentina	1 2 3 4 5
72	Marketing Assistant	Georg Pipps	Germany	1 2 3 4 5
73	Marketing Assistant	Paul Henriot	Spain	1 2 3 4 5
74	Sales Consultant	Matti Karttunen	Bulgaria	1 2 3 4 5
75	Sales Consultant	Antonio Moreno	Brazil	1 2 3 4 5
76	Sales Consultant	Elizabeth Lincoln	Argentina	1 2 3 4 5
77	Owner	Patricio Simpson	Bulgaria	1 2 3 4 5
78	Sales Manager	Patricio Simpson	England	1 2 3 4 5
79	Sales Agent	Matti Karttunen	Spain	1 2 3 4 5
80	Sales Agent	Georg Pipps	USA	1 2 3 4 5
81	Sales Manager	Matti Karttunen	USA	1 2 3 4 5
82	Sales Representative	Pascale Cartrain	England	1 2 3 4 5
83	Sales Consultant	Hanna Moos	Argentina	1 2 3 4 5
84	Owner	Jaime Yorres	Italy	1 2 3 4 5
85	Accounting Manager	Howard Snyder	France	1 2 3 4 5
86	Owner	Patricio Simpson	Austria	1 2 3 4 5
87	Accounting Manager	Jaime Yorres	USA	1 2 3 4 5
88	Sales Representative	Paul Henriot	Italy	1 2 3 4 5
89	Accounting Manager	Patricio Simpson	Italy	1 2 3 4 5
90	Marketing Manager	Elizabeth Lincoln	England	1 2 3 4 5
91	Accounting Manager	Elizabeth Lincoln	Austria	1 2 3 4 5
92	Accounting Manager	Georg Pipps	Italy	1 2 3 4 5
93	Sales Consultant	Matti Karttunen	Argentina	1 2 3 4 5
94	Sales Representative	Georg Pipps	Germany	1 2 3 4 5
95	Sales Manager	Patricio Simpson	England	1 2 3 4 5
96	Accountant	Paul Henriot	France	1 2 3 4 5
97	Sales Manager	Pascale Cartrain	Argentina	1 2 3 4 5
98	Marketing Assistant	Paul Henriot	Austria	1 2 3 4 5
99	Sales Associate	Hanna Moos	Argentina	1 2 3 4 5
100	Sales Consultant	Antonio Moreno	USA	1 2 3 4 5


...201 202 203 204 205 206 207 208 209 210 ... Item 207001 to 208000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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