Hi,
I have a report, where the user wants to be able to filter the data based on 2 parameters. Is it possible to make those parameters optional? The point is to be able to filter the results, but to be able to see them all as well.
Example: Let's say I have parameters Location and SalesmanId. I want to be able to filter by Location to show all the Salesmen and also to be able to set Location and SalesmanId to see only sales of the particular salesman in the location.
If I use in the SqlDataSource query condition WHERE, both parameters will be required, otherwise the query won't be valid. How to make the parameters optional? - that the query will show all salesmen in all locations, if none of the parameters is set.
Thank you in advance for your help.
Radovan

Hello telerik team,
Can you help me with this, I need a reporting table to display (and group by name) some images, these images comes from my D.B and they are base64 strings, so I convert them to Image like this: Base64ToImage(myDBstring), this part works fine, but when i run it on my chsarp .net web project, the telerik reporting show me this error:
An error as occurred while proccesing PictureBox 'picture1' Could not find part of the path C:\Myproyect\MyWebSite\System.Drawing.Bitmap.
See attached image (left is a single image box and right is the table with the error)
Note 1: I already did this with a single picture box succesfully, but now i need it in a table with two columns, Name and Image.
Note 2: I Dont use paths, i use D.B base64 images and merge them with a Dataset.

How can WPF ReportViewer display Multiple UriReportSources as one Report?
I want to diplay multiple UriReportSources (same trdp UriReportSource and same ParameterName, but varios ParameterValues) in WPF ReportViewer as one Report, wich contains this multiple UriReportSources successively.
Here is my C# Code:
ReportBook RB = new ReportBook();
UriReportSource uriRS = new UriReportSource();
uriRS.Uri = "MyYearTest.trdp";
uriRS.Parameters.Add(new Telerik.Reporting.Parameter("Year", 2018));
RB.ReportSources.Add(uriRS)
UriReportSource uriRS = new UriReportSource();
uriRS.Uri = "MyYearTest.trdp";
uriRS.Parameters.Add(new Telerik.Reporting.Parameter("Year", 2019));
RB.ReportSources.Add(uriRS)
UriReportSource uriRS = new UriReportSource();
uriRS.Uri = "MyYearTest.trdp";
uriRS.Parameters.Add(new Telerik.Reporting.Parameter("Year", 2020));
RB.ReportSources.Add(uriRS)
InstanceReportSource IRS = new InstanceReportSource();
IRS.ReportDocument = RB;
this.TRPViewer.ReportSource = IRS;
Both Objects (RB and IRS) contains 3 ReportSources.
But the WPF ReportViewer (this.TRPViewer) shows 3 times the same page, in fact 3 times the first Report of the Year 2018!
How can i display all 3 Years Reports (2018,2019,2020) as one Report in WPF ReportViewer?
I am new to telerik report. I want to group data by name and address should show down to grouped property. Please find attached file that i generated from report. Please help how to get desired result that i attached.
Is there any way of getting and editing web service datasource from report file(*.trdx, *.trdp) programmatically without using standalone Report Designer tool?
I know Report has DataSources property, but it's private. My scenario is: I generate OData query at runtime and I have to set that OData query string to the report WebServiceDataSource.ServiceUrl property value, or I have to change existed OData query and save that to data source.
In this post suggested getting data sources through the data items(Table, List, Report parameters,...). But, for example I created data source and it's not assigned to any items yet. In this case how can I access to that data source? I still want to modify that data source which is not assigned.
Thanks,

Hello everyone,
I have a
question about the possibilities in the detail section:
we have
multiple transports where each transport can have multiple kinds of goods and
we would like to use the detail section to show both of them.
It should
look like this (simplified) e.g.:
Truck A
2 Pal. Lights
1 Pal. Bananas
20 Pal. Apples
Truck B
4 Pal. Cups
2 Pal. Gloves
…..
The problem
is that in SQL we have no other possibility to join the tables so that the
result looks like see att..
This will
transform in multiple lines:
Truck A
2 Pal. Lights
Truck A
1 Pal. Bananas
Truck A
20 Pal. Apples
Truck B
4 Pal. Cups
Truck B
2 Pal. Gloves
I also
tried to use a table or a list Item but both would show all results for each
entry.
Truck A
2 Pal. Lights
1 Pal. Bananas
20 Pal. Apples
4 Pal. Cups
2 Pal. Gloves
Truck B
2 Pal. Lights
1 Pal. Bananas
20 Pal. Apples
4 Pal. Cups
2 Pal. Gloves
Is there
any possibility with another item, format, filter,group ..anything to get one row
for each truck and with the goods for this one?
Hi.
My report contains a table that is expected to not fit on a single page so it has KeepTogether set to false. It also has ColumnHeadersPrintOnEveryPage set to true.
In print preview or when rendered as DOCX or PDF the table splits correctly, i.e. a blank row is drawn at the end of the first page indicating that the table continues on the next page.
When rendered into PPTX however (which is the target format for me) the blank row gets drawn at the start of the next page instead. It would not be that much issue without table headers repeating on every page. With them it looks quite confusing.
Hello everyone,
is there any possibility to automatically sort the parameters in the report explorer? I know you can sort manually if you use the 'edit parameter' function but i would need an automatic way.
Regards

Hello.
I have a normal report and when I click to see the next page this error occurs :
Exception information:
Exception type: NullReferenceException
Exception message: Object reference not set to an instance of an object.
at Telerik.ReportViewer.WebForms.StreamManager.GetHtmlPage(Int32 pageIndex)
at Telerik.ReportViewer.WebForms.ReportPageOperation.WriteHtmlPage(StreamManager streamManager, Int32 pageIndex)
at Telerik.ReportViewer.WebForms.BasicHandler.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Request information:
Request URL: .... Telerik.ReportViewer.axd?instanceID=0cdcda6604764ba2a837581cedb1ae5f&optype=Report&PageIndex=1&RenderID=312cd5f978ca4b8baf48ad45439e270e&RenderingFormat=HTML5
Request path: /Telerik.ReportViewer.axd
Any idea?