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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 194001 to 195000 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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