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