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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 197001 to 198000 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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