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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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