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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 192001 to 193000 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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