Trying to find a way to parameterize a report name to change in a compiled app

Question

Greetings,

I have an app that renders SSRS reports for the internet users, secured by Azure authentication tokens. The asp.net page has the report names hardcoded in its .cs file, not accessible after compiling the app.

I have been searching for ways to define a variable somewhere in a view that is editable from IIS, (_ViewStart), for instance, assign a value to it and use it in the .aspx page on runtime

Something like:

The variable in _ViewStart view:

@{

    public static string report = "reportname";

}

must be available in the .cs file below (in bold):

ssrs_report.aspx
ssrs_report.aspx.cs

Any ideas are appreciated. I'd like to avoid recompiling the app every time developers want to point it to a different report

Answer 1

Greetings,

I have managed to solve it by utilizing the hiddenfield control.

In every .aspx file, add the line, specifying the HiddenFieldID (a string) and report path in "Value":

<asp:HiddenField ID="reportid" Value="/Reports/reportname" runat="server"></asp:HiddenField>

In respective aspx.cs file, reference the hidden field's value as:

string reportname = Convert.ToString(reportid.Value)

Now, after compiling the app and deploying it to IIS, I can change the Value without recompiling

Answer 2

Hi @polaro ,
As far as I think,instead of creating variables, you're better off injecting a service that will generate the values you need as required.For example:

public interface ILocalisationService  
{  
    string CurrencySymbol { get; }  
}  
  
public class LocalisationService : ILocalisationService  
{  
    private IConfigurationService _configurationService;  
    private string _currencySymbol;  
  
    public LocalisationService(IConfigurationService configurationService)  
    {  
        _configurationService = configurationService;  
    }  
  
    public string CurrencySymbol => string.IsNullOrEmpty(_currencySymbol)  
        ? _currencySymbol = _configurationService.GetValue("£")  
        : _currencySymbol;  
}  

Now inject the new service:

@inject ILocalisationService LocalisationService  

And use it in your view:

The currency symbol is @LocalisationService.CurrencySymbol  

Best regards,
Yijing Sun

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