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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 154001 to 155000 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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