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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 242001 to 243000 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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