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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 176001 to 177000 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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