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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 254001 to 255000 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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