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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 195001 to 196000 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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