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.

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

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.

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.

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)

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();
            }
        }
    }
}

As in Ticket with ID 1440072 requested we are looking for a funktionallity to send Reports via E-Mails with the WPF ReportViewer. As only the HTML-5 ReportViewer currently supports the E-Mail sending we would request the feature for WPF as well.

Best Regards,

Martin

The print functionality cannot be used in Google Chrome 77.0.3865.75 (lastest update).  The following error is displayed in the console of the browser: Resource interpreted as Document but transferred with MIME type application/pdf.

As an alternative, you can use other web browsers for printing. 

When a date is set as a report parameter in the HTML5 viewer, it formats the parameter as a JSON date using a timezone.  Where no time is specified this results in a time part added to the date when received at the server.  This is a problem, especially for browser in a negative offset zone, e.g. US, where upon the date goes to the previous day.  Please add support for parameter types of date, where no time is present and no conversion is done anywhere.

in our solution, we store the trdx reports designed with Standalone Designer as xml strings in our database,
and render them to pdf in the background services by using  Telerik.Reporting.XmlSerialization.ReportXmlSerializer.Deserialize

the new web based designer would be a good addon to integrate report design directly into the appliciation.

but the current preview version of webreportdesigner needs to be configured with a FileStorage.
it is possible to override the GetReport and SaveReport functions in a custom ReportDesignerController and load the report from a string (db in our case),

but since the ReportJsonSerializer is an iternal class, it is not possible to create a json response and send it to the webeditor.

so it would be helpfull, either to make the ReportJsonSerializer a public class so it can be used to convert the report manally to json, or extend the

whole thing to load the reports from strings directly.

i down  last new version  r3 2019  sp1 trial, create  Simple example for  binding table

eg:

reporting design tool  render result: