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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 193001 to 194000 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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