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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 193001 to 194000 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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