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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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