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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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