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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 191001 to 192000 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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