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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 163001 to 164000 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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