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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 190001 to 191000 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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