Approved
Last Updated: 05 Dec 2019 15:22 by ADMIN

When merging the ReportViewer's WPF theme dictionaries from the DLL in App.xaml, the VS2019 Designer fails due to a problem with a ZoomComboBoxStyle definition.

This causes all Telerik UI for WPF control's styles fail to load in the Visual Studio designer.

WORKAROUND

Instead of App.xaml, merge the ReportViewer's theme dictionary closer to the control.

For example in the ReportViewer's direct parent:

<Grid>
<Grid.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<!-- Moved from app.xaml -->
<ResourceDictionary Source="/Telerik.ReportViewer.Wpf.Themes;component/Themes/Summer/Telerik.ReportViewer.Wpf.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Grid.Resources>

<tr:ReportViewer x:Name="ReportViewer1" ReportSource="{Binding CurrentReport}" />
</Grid>

Approved
Last Updated: 05 Dec 2019 10:27 by ADMIN
Let the user configure whether the Standalone designer to start initially in Interactive or PrintPreview mode. Currently, it starts always in Interactive mode and this may cause slow down or even hanging if the previewed report is huge.
Approved
Last Updated: 05 Dec 2019 03:16 by Adam
The problem is not getting the error via Dot Net programming, but the complete layout destruction of the report as a result of the fact that a picture (in our case a thumbnail of a provider) is unavailable. Catching the report error is not an option. It is too complicated and even if we succeed  in obtaining the error, it will be very complicated to remove the unavailable url on the fly and re-render the report again. 

This seems to be a "known issue" for about 8 years!

My question: Is it possible to keep the remaining report "intact" if such an error occurs? This shouldn't be too difficult for the development team..
Approved
Last Updated: 04 Dec 2019 14:00 by Mark

Hello Telerik team!

In the attachment, there are two PDFs, generated by the same template (also in attachment): one built under Windows, another one - under Linux (Docker). See red boxes as defects on the screenshot:

Text wrap issues

Text wrap issues

Dockerfile fragment:

# MS TrueTypeFonts install
RUN wget http://ftp.de.debian.org/debian/pool/contrib/m/msttcorefonts/ttf-mscorefonts-installer_3.6_all.deb -P ~/Downloads
RUN apt install -y ~/Downloads/ttf-mscorefonts-installer_3.6_all.deb

RUN apt-get install -y libc6-dev
RUN apt-get install -y libgdiplus
RUN apt-get install -y libx11-dev
RUN rm -rf /var/lib/apt/lists/*

 

Please help us to resolve these issues in Linux.

Approved
Last Updated: 04 Dec 2019 10:13 by ADMIN

When you try to send the report through the SendMailMessage functionality but an exception is thrown, the report will disappear. If you click on Refresh and try again with fake data, the exception will be thrown but the report will remain. If you prefer to refresh it automatically, you can use the error event:


var viewer = $("#reportViewer1")
.telerik_ReportViewer({
    serviceUrl: "api/reports/",
    reportSource: {
        report: "Report Catalog.trdp",
    },
    error: function (e, args) {
        console.log("This event handler will be called after a page of the report is ready.");
        console.log("The error message is: " + args);
        viewer.refreshReport();
    },
    viewMode: telerikReportViewer.ViewModes.INTERACTIVE,
    scaleMode: telerikReportViewer.ScaleModes.SPECIFIC,
    scale: 1.0,
    enableAccessibility: false,
    sendEmail: { enabled: true }
}).data("telerik_ReportViewer");

Completed
Last Updated: 04 Dec 2019 03:46 by Mohsin

running your https://demos.telerik.com/reporting in Chrome 77.0.3865.75, when trying to print the following error is returned:

Refused to execute script from 'https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=1ddd0495-ceb5-4cd4-b879-03f7c6be269b' because its MIME type ('image/gif') is not executable.

 

and nothing happens.

wasn't this fixed in your latest update?

is there a workable solution for this issue?

 

Approved
Last Updated: 03 Dec 2019 12:00 by ADMIN
Sometimes when the width of the page is less than the one of the report (<13px). This content on the right side (the last 12px) will be not visible.
Pending Review
Last Updated: 02 Dec 2019 15:01 by ANDREY
Currently, there is no WebServiceDataSource property for controlling the Timeout for canceling the task for fetching the data. The default value is 100s, as inherited from the HttpClient. In some cases this is not sufficient, causing the cancelation of the task and failure of the report.
Pending Review
Last Updated: 02 Dec 2019 11:49 by Daniel
When I place an HtmlTextBox in a table column and set its top padding, the padding is respected when previewing in the designer and when the report is rendered in PDF. When previewing in the Html5 Viewer the padding is ignored.
Approved
Last Updated: 29 Nov 2019 10:05 by ADMIN
Created by: Hal
Comments: 3
Type: Feature Request
17
It would be very helpful for us people that have been using Telerik Reporting in Silverlight (or WPF) applications to have access to a Report Viewer for Windows Store Apps (XAML).  The future of Silverlight is unclear at least and there are many Line Of Business Applications currently running under Silverlight and I know of many developers that are looking to port their LOB apps to Windows Store Apps (or Universal Apps).  The current HTML5 Report Viewer does not provide printing when it is implemented in browser window in Windows Store Apps so we cannot really offer this option to our customers.
In Development
Last Updated: 27 Nov 2019 12:51 by ADMIN
When exporting a report to PDF on Linux the document looks correct. If you try to copy text from this PDF and paste it in a text editor, the text appears as random symbols, e.g. empty squares.
Approved
Last Updated: 27 Nov 2019 12:13 by ADMIN
Created by: Grzegorz
Comments: 1
Type: Feature Request
1
Dark theme is so much needed.
Approved
Last Updated: 26 Nov 2019 12:25 by ADMIN

StackTrace of the error:

 System.NullReferenceException: Object reference not set to an instance of an object.
   at System.Collections.Generic.Dictionary`2.TryInsert(TKey key, TValue value, InsertionBehavior behavior)
   at Telerik.Reporting.Interfaces.LocalizationContext.GetString(String resx, String key)
   at Telerik.Reporting.SRDescriptionAttribute.get_Description()
   at Telerik.Reporting.Expressions.EnumContextManager.GetItem(Type enumType)
   at Telerik.Reporting.Processing.ReportExpressionContext.RegisterAllReportingEnums()
   at Telerik.Reporting.Processing.ReportExpressionContext..ctor(Type reportType, AssemblyRefManager assemblyRefManager)   at Telerik.Reporting.Processing.ReportParametersManager`1.CreateExpressionContext(Report report, IList`1 runtimeParameters, AssemblyRefManager references)
   at Telerik.Reporting.Processing.ReportParametersManager`1..ctor(Report definitionReport, IEnumerable`1 definitionParameters, IDictionary`2 reportSourceParameters, IDataProviderContext dataProviderContext, AssemblyRefManager references)
   at Telerik.Reporting.Processing.DocumentParametersManager`1.CreateManager(Report definition, IDataProviderContext dataProviderContext, IParameterValueParser parameterValueParser, IDictionary`2 rsParameters, AssemblyRefManager references)   at Telerik.Reporting.Processing.DocumentParametersManager`1.CreateManagers(IProcessingContext context, IParameterValueParser parameterValueParser)
   at Telerik.Reporting.Processing.DocumentParametersManager`1..ctor(ResolvedReportDocument resolvedReports, IProcessingContext processingContext, IParameterValueParser parameterValueParser)
   at Telerik.Reporting.Processing.ReportProcessor.ProcessReportSource(ReportSource reportSource, IRenderingContext context)
   --- End of inner exception stack trace ---
   at Telerik.Reporting.Processing.ReportProcessor.ProcessReportSource(ReportSource reportSource, IRenderingContext context)
   at Telerik.Reporting.Processing.ReportProcessor.ProcessReportSource(ReportSource reportSource, Hashtable deviceInfo, IRenderingContext context)
   at Telerik.Reporting.Processing.ReportProcessor.ProcessAndRender(String format, ReportSource reportSource, Hashtable deviceInfo, IRenderingContext renderingContext, CreateStream createStreamCallback)
   at Telerik.Reporting.Processing.ReportProcessor.ProcessAndRenderStateless(String format, ReportSource reportSource, Hashtable deviceInfo, IRenderingContext renderingContext, CreateStream createStreamCallback)
   at Telerik.Reporting.Processing.ReportProcessor.RenderReport(String format, ReportSource reportSource, Hashtable deviceInfo, CreateStream createStreamCallback, String& documentName)

Approved
Last Updated: 26 Nov 2019 10:23 by ADMIN
The TOC is missing when the report is exported programmatically to Word in .NET Core application
In Development
Last Updated: 26 Nov 2019 08:34 by ADMIN

When the user confirms changing the chart type through the "Change Chart Type" dialog window, the graph designer does not get refreshed and still shows the old chart type.

Underneath the graph item is actually changed and if the report is previewed, the new graph layout will be displayed. The current workaround is to refresh the graph designer by changing one of its properties that cause full item refresh - Culture, Graph title, NoDataMessage, etc.

Approved
Last Updated: 25 Nov 2019 12:27 by ADMIN
If the data retrieval class is implementing IDisposable, the engine never invokes Dispose method. This can result in unexpected and unwanted data caching. Consider to invoke the IDisposable.Dispose if the data retrieval class is referenced by type (this.objectDs.DataSource = typeof(MyDataLayer))
Pending Review
Last Updated: 21 Nov 2019 18:50 by ADMIN

Hello, 

It would be nice to control the report loading animation during a report viewer refresh. We are refreshing a report every x seconds and it appears to be flickering during a refresh.

Thank you.

Approved
Last Updated: 20 Nov 2019 12:58 by ADMIN

If a table-based item (Table, List, Crosstab) does not fit in a single page and needs to occupy more than one page, its bottom border is not drawn on the first page and its top border is not drawn on the second (subsequent) page. This behavior is by design and its purpose is to help the users visually distinguish the table as a single item. The table has only one top and bottom border and they are displayed at the beginning and at the end of the table, regardless how many pages the table actually occupies.

Since users might find this confusing, a table should have a property controlling this behavior. The default state of the property will preserve the current rendering. If the user explicitly sets the property, then the table will draw its top and bottom borders on every page it occupies.

In Development
Last Updated: 19 Nov 2019 15:20 by ADMIN

As virtually every product with 10+ years of development, Telerik Reporting has a certain amount of legacy code that was considered immutable at the time of writing. During the refactoring of our codebase to make it compatible with .NET Standard, we introduced a few types from System.Windows.Forms namespace to substitute the ones missing in the current version of the framework. Such types are System.Windows.Forms.CheckState and System.Windows.Forms.ControlPaint. Some of these types are introduced in recent release of .NET Core 3 for Windows Forms and therefore a conflict occurs between the types in our assemblies and the ones declared in .NET Core. The error is thrown in compile-time and it is similar to the one shown below:

The type 'CheckState' exists in both 'System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' and 'Telerik.Reporting, Version=13.2.19.918, Culture=neutral, PublicKeyToken=a9d7983dfcc261be'

 

In a future release of our product this collision will be avoided by using a dedicated enumeration for the duplicated types. A possible workaround would be to add an extern alias to the assembly reference of Telerik.Reporting. In this case all the references to Telerik.Reporting have to be edited to use the new alias, but the code that refers to the actual types from System.Windows.Forms will remain unchanged.

 

Here is how the Telerik.Reporting reference would look like in the application .csproj file:

  <ItemGroup>
    <Reference Include="Telerik.Reporting">
      <HintPath>..\..\..\Bin\netstandard2.0\Telerik.Reporting.dll</HintPath>
      <Aliases>telerikReporting</Aliases>
      </Reference>
  </ItemGroup>

 

Using the alias means that all the types in Telerik.Reporting namespace must be accessed with this alias. Unfortunately this also applies to C#/VB report definitions - their types must also be prepended with the alias, which could require significant effort. Here is a sample code file that initializes the WinForms Report Viewer and examines the CheckState of a CheckBox control in the form:

extern alias telerikReporting;

using System;
using System.Windows.Forms;

namespace WindowsFormsCoreDemo
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
            this.Load += this.Form1_Load;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.reportViewer.ReportSource = new telerikReporting::Telerik.Reporting.UriReportSource()
            {
                Uri = "SampleReport.trdp"
            };

            this.reportViewer.RefreshReport();
        }

        private void CheckBox_CheckedChanged(object sender, System.EventArgs e)
        {
            if (this.checkBox.CheckState == CheckState.Checked)
            {
                this.reportViewer.RefreshReport();
            }
        }
    }
}
Completed
Last Updated: 18 Nov 2019 15:43 by ADMIN
An exception is thrown when trying to configure Authentication parameters in WebServiceDataSource: Response status code does not indicate success: 400 (Bad Request)
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