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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 247001 to 248000 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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