How to pass parameter to the table's datasource with Telerik Reporting?

Question

I have a table on my Telerik report where I want to pass parameters with the table's data source. I also have a report datasource with parameter but this does not help with the table's datasource and its parameter. Any help would be appreciated.

this.table1.DataSource = "GetLocationsData";

Answer 1

You have to set the available values source and most probably filters:

Telerik.Reporting.ReportParameter reportParameter1 = new Telerik.Reporting.ReportParameter();
this.csvDataSource1 = new Telerik.Reporting.CsvDataSource();
this.table1 = new Telerik.Reporting.Table();
    
this.csvDataSource1.Source = "id,text\r\n1,a\r\n2,b\r\n3,c";
this.table1.DataSource = this.csvDataSource1;
this.table1.Filters.Add(new Telerik.Reporting.Filter("= Fields.text", Telerik.Reporting.FilterOperator.Equal, "= Parameters.paramString.Value"));
reportParameter1.AvailableValues.DataSource = this.csvDataSource1;
reportParameter1.AvailableValues.ValueMember = "=Fields.Text";
reportParameter1.Name = "paramString";
reportParameter1.Text = "String";
reportParameter1.Value = "a";
reportParameter1.Visible = true;
this.ReportParameters.Add(reportParameter1);

If this does not help you, you can have a look at the available reports that come with the installation - replace in the path below your Telerik Reporting version, mine is R3 2022:

C:\Program Files (x86)\Progress\Telerik Reporting R3 2022\Examples\CSharp\.NET Framework\ReportLibrary

Another option if you are stuck, is to create the report in web report or standalone report designer and then import the report definition file (trdp, trdx, trbp) into Visual Studio (will be converted to type definition.cs file).

Reference:
https://docs.telerik.com/reporting/designing-reports/connecting-to-data/report-parameters/how-to-add-report-parameters
https://docs.telerik.com/reporting/designing-reports/connecting-to-data/report-parameters/overview