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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 159001 to 160000 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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