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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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