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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 162001 to 163000 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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