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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 192001 to 193000 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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