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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 190001 to 191000 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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