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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 211001 to 212000 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="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ 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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