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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 214001 to 215000 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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