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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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