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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 197001 to 198000 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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