Dear Telerik Team,

Currently, we are working on our web.app. which utilizes your library for ATLAS. Getting a fast chart component was one of the reasons for our decision to buy your library. Recently, we have using MSChart on certain web page which resides in our solution. However, we are unfavorably surprised, because of your Radchart performance ussues. We are afraid of the incorrect utilization of the RadChart component, therefore we would like to ask you for a proper technique to RadChart preparing as well as rendering.  

Please, have a look at our performance test, which we have made for the comparison.  The test were proceeded on the same machine/IDE/database/.NET framework  (so, on the same HW & SW configuration).

 
Here is our source code snippet: (Let us remark that we need to specify the color for each of the series.)

            foreach (KeyValuePair<DataPointEntity, DataTable> dt in data)

                            {

                     ChartSeries chartSeries = new ChartSeries(radChart.Series);

                     chartSeries.Name = dt.Key.Name;

                     chartSeries.Appearance.ShowLabels = false;

                     chartSeries.SetColors(dt.Key.Color);

                     chartSeries.Appearance.FillStyle.MainColor = dt.Key.Color;

                    for (int i = 0; i < dt.Value.Rows.Count; ++i)

                         chartSeries.AddItem(new ChartSeriesItem(
                             ((DateTime)dt.Value.Rows[i][1]).ToOADate(), (double)dt.Value.Rows[i][2]));

                    radChart.Series.Add(chartSeries);

            }

Here are the obtained results:

MSChart:

 Preparing 27 000 values       0:0:0.093 s

 Rendering: 13 s

RadChart:

 Preparing 27 000 values       0:0:2.160 s

 Rendering: 30 s

What we have made wrong, please?  Must we done this by using a DataTable (or something similar)? 

There is series type “Fastline” in MS chart for faster rendering. Do you have any tip or idea how to set up the RadChart instance to accomplish faster rendering, or is there something for increase the rendering speed?

We suppose that Silverlight version of the RadChart maybe faster, but we want to build our web app on ATLAS.

Kind Regards,
SCT

If you have a RadformDecorator DecoratedControls="All" and a grid with a GridCheckBoxColumn or a Template column with a checkbox and click refresh in the grid commandtemplate.  The Grids MasterTableView Clientheight is reduced 1px per row.

This is causing issue with my autoresize of the grid height.  My grid height is autosize on initial load correctly, but when I refresh I get an undesired scrollbar on my grid. 

This was an interesting one to chase down.

Hello,
I'm trying to pass the value of tab (param BE) that is clicked to show up in a grid inside RadPageView2.  For example:
Tab A and B
when Tab A is clicked, i would like the grid to come up using SqlDataSource2 with the BE field = 'A'.

Can someone help?

Thanks

<%@ Page Language="C#" MasterPageFile="Public.master" AutoEventWireup="true" CodeFile="Sample.aspx.cs" Inherits="_Default" Debug="true" %>

<%

@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

html xmlns="http://www.w3.org/1999/xhtml">

<

head>

<title>Sample</title>

</

head>

<

body>

<form id="form1" runat="server">

<div><asp:scriptmanager runat="server" id="ScriptManager1">

</asp:scriptmanager>

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="RadGrid1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadGrid1" LoadingPanelID="RadAjaxLoadingPanel1" />

<telerik:AjaxUpdatedControl ControlID="RadWindowManager1" />

<telerik:AjaxUpdatedControl ControlID="lbl_message" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<br />

<telerik:RadTabStrip ID="RadTabStrip1" runat="server" AutoPostBack="true" MultiPageID="RadMultiPage1"

DataSourceID="SqlDataSource1" DataTextField="peo" >

</telerik:RadTabStrip>

<telerik:RadMultiPage ID="RadMultiPage1" runat="server">

<telerik:RadPageView ID="PageView1" runat="server">

<telerik:RadGrid ID="RadGrid1" DataSourceID="SqlDataSource1" runat="server">

</telerik:RadGrid>

</telerik:RadPageView>

<telerik:RadPageView ID="RadPageView2" runat="server">

<telerik:RadGrid ID="RadGrid2" DataSourceID="SqlDataSource2" runat="server">

</telerik:RadGrid>

</telerik:RadPageView>

</telerik:RadMultiPage>

<asp:SqlDataSource ID="SqlDataSource1"

ConnectionString="<%$ ConnectionStrings:ConnectionString2 %>" runat="server"

SelectCommand="SELECT BE FROM Projects WHERE (FY = @FY) AND ([BA] = @BA) GROUP BY BE">

<SelectParameters>

<asp:QueryStringParameter Name="FY" QueryStringField="FY" Type="String" />

<asp:QueryStringParameter Name="BA" QueryStringField="BA" Type="String" />

</SelectParameters>

</asp:SqlDataSource>

<asp:SqlDataSource ID="SqlDataSource2"

ConnectionString="<%$ ConnectionStrings:ConnectionString2 %>" runat="server"

SelectCommand="SELECT * FROM [PROJECTS_INPUT] WHERE (([FY] = @FY) AND ([BA] = @BA) AND ([BE] = @BE)) ">

<SelectParameters>

<asp:SessionParameter Name="FY" SessionField="FY" Type="String" />

<asp:SessionParameter Name="BA" SessionField="BA" Type="String" />

<asp:SessionParameter Name="BE" SessionField="BE" Type="String" />
</SelectParameters>

</asp:SqlDataSource>

<telerik:RadAjaxPanel ID="RadAjaxPanel1" LoadingPanelID="RadAjaxLoadingPanel1" runat="server" Height="800px" Width="1000px">

<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>

</telerik:RadAjaxPanel>

</div>

</form>

</

body>

</

html>

</

asp:Content>