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Kindly when i printing a report it gives me  Report instance with ID 'null' not found. i tried many solutions i tried to fix the state of the report viewer component trigger it gives me error in commands since it gives undefined and when i use to another state it gives report instance with ID null please if you can help me in this issue
Yana
Telerik team
 answered on 15 Feb 2022
1 answer
291 views

I have a line chart with two series. I would like to show or hide each series based on whether they are checked in a report parameter.

For example, if Ongoing is unchecked in the list below, the red line should disappear from the chart and legend. Is this possible?

If so, what property on the graph should be toggled and how can a particular checkbox value be determined in an expression?

For testing purposes I have hard-coded the data in the data source like this:

SELECT '2021-1' YearMonth, 1 AS New, 2 AS Ongoing
UNION ALL
SELECT '2021-2' YearMonth, 2 AS New, 3 AS Ongoing
UNION ALL
SELECT '2021-3' YearMonth, 4 AS New, 1 AS Ongoing

Thanks,

Tim

Tim
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Iron
 answered on 14 Feb 2022
0 answers
363 views

Hi,

I'm having a difficulty trying to make this design work. What I want is just to let the panels after the table to be positioned properly when the table size is growing.

 

Right now it's just messed up. It stays at the same position regardless of the table growing making it overlaps each other. (As you can see in the picture attached)

 

Any help would be highly appreciated.

Wasenshi
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 updated question on 14 Feb 2022
0 answers
230 views
I have a report containing basic column clustered chart. it works fine on report designer and preview, my problem is when i export it to excel using asp.net mvc telerik reporting report processor, the charts becomes smaller.

Archieval
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 updated question on 11 Feb 2022
0 answers
583 views

Hello,

I am trying to use the HTML5 WebForms Report Viewer in an ASP.NET WebForms (.NET Framework 4.6.1) application.  I am using Telerik Reporting version 16.0.22.119.

I need to update the report source and parameters from the code behind, and I have not been able to get this to work. 

My report displays correctly when the page first loads.  Then, I select a choice from a drop-down list on the page.  I attempt to change the parameter and datasource in an event in the code behind.  When the screen refreshes, the report viewer is no longer there.

My report viewer is inside of an UpdatePanel on the page, like this:

			<asp:UpdatePanel ID="UP1" UpdateMode="Always" runat="server">
				<ContentTemplate>

					<%--practice group list and practice ddl--%>
					<div style="width: auto;">
						<uc:wucPracticeListAndPractice ID="PracticeAndListBar" runat="server"
						ControlStyle="Bar" AdjustWidths="True" SelectionsAreSticky="True"
						AllowAllPractices="false" />
					</div>

					<div style="border: 2px solid red;">

						<telerik:ReportViewer
							ID="reportViewer"
							Width="1300px"
							Height="900px"
							
							runat="server" ServiceUrl="https://localhost:44364/api/reports" >
							<ReportSource Identifier="Samples/TestReport.trdp" IdentifierType="UriReportSource">
								<Parameters>
									<telerik:Parameter Name="AccountOid" Value="00000000-0000-0000-0000-000000000000" />
								</Parameters>
							</ReportSource>
							
							<%-- If set to true shows the Send Mail Message toolbar button --%>
							<SendEmail Enabled = "false" />
						</telerik:ReportViewer>

						<telerik:DeferredScripts runat="server"></telerik:DeferredScripts>

					</div>

				</ContentTemplate>
			</asp:UpdatePanel>

In my event in the code behind:

            ReportSource reportSource = new ReportSource()
            {
                Identifier = "Samples/TestReport.trdp",
                IdentifierType = IdentifierType.UriReportSource
            };
            reportSource.Parameters.Add("AccountOid", Guid.Empty.ToString());

            this.reportViewer.ReportSource = reportSource;

Any suggestions on what I might be doing wrong?

Thank you.

1 answer
191 views

Hello,

We have an odata api that limits the maximum number of records that can be returned to the client to 1000 records. The service allows for query parameters $top and $skip that allow us to page through the data, which works great in kendo grids, etc. For reporting though, I'm wondering if there's any way using the web service data source to somehow auto-page through data until it gets through all of the pages of data, that way we get all of the data from the api server without worrying about only being able to retrieve the fist page of 1000 records only? Is this a thing?

Thank you in advance!

Brandon

Todor
Telerik team
 answered on 10 Feb 2022
1 answer
184 views

We have a report with a multivalue parameter whose record source may include ~32k rows of data.  Thanks to virtualization, the user is able to scroll through the entire list selecting as many options as they wish.  Unfortunately, if the user selects the "<select all>" option, the application becomes immediately unresponsive, and the only way to continue is to restart the application by performing an end task in the windows task manager.

 

Questions:

  1. Is there any way to prevent this hard lockup in the current scenario?
  2. Is there some way to remove the "<select all>" option, either by default or when the data in the combobox exceeds a threshold?
Todor
Telerik team
 answered on 10 Feb 2022
1 answer
275 views

I have embedded web designer using this link. It's working fine but I want to hide some data sources from the list. Currently it's showing 5 data sources i.e SqlDataSource, CsvDataSource, WebServiceDataSource, JsonDataSource and ObjectDataSource.

I want to keep only CsvDataSource and hide all others. How can I do that programmatically?

Sia
Telerik team
 answered on 10 Feb 2022
1 answer
142 views

Hi,

We have old version of Telerik reporting . and old version of Kendo UI library(on our client side)

we use with Rest API in server side and with HTML5 Telerik report viewer in client side. 

Now we want to upgrade our Telerik reporting version.

The behaviour of the new HTML5 report viewer depends on a new version of the Kendo ui.

We have a big project and we do not want to upgrade Kendo Ui library.

Is it possible to upgrade only the server side of the reports?
Without upgrading Reporter Viewer?

 

Thanks,

Chani

 

Todor
Telerik team
 answered on 09 Feb 2022
1 answer
1.2K+ views

Hello,

I'm using the Reporting Tool with an Angular Frontend and have a question how the authentication works.
The report is created with the standalone ReportDesigner and contains one SubReport.

In the frontend the authentication token is assigned:
<tr-viewer 
...
    [authenticationToken]="authenticationToken"
</tr-viewer>

In the Designer a 2-step authentication is configured - only for design purpose.

The desired behaviour is that the authenticationToken assigned in the frontend is used when accessing the backend controller. But the observed behaviour is that the report requests multiple times (3) new tokens by calling the login URL assigned to the 2-step authentication config. 

How can I configure the Report so that no new tokens are requested and the one assigned on the frontend is used (via Bearer xxxx). Nevertheless the Controller Entry-Point for data retrieval for the report dataSource must be protected. And what is the report auth behaviour by design?

Todor
Telerik team
 answered on 04 Feb 2022
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