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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 207001 to 208000 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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