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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 162001 to 163000 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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