SHow multi select parameter values in header

[Bill]

I am having trouble finding any decent help or examples on how I can display Multi select parameters in a textbox in the report header.
My report has a multi select parameter filled with regions which I want to display as a comma separated list in a textbox.
I would think that this is a commonly required feature so you can display what the report is currently filtering on.
If I use the parameter value or text in the textbox it displays System.Text[]

[Peter]

Hi Bill,

The multi-value report parameter returns an array for value. Generally arrays can be represented in different ways. Thus our suggestion is to utilize user functions. For your scenario you can use the following user function and expression:

public static string ConvertArrayToString(object[] values)
{
    var result = new StringBuilder(values[0].ToString(),values.Length);

    for (int i = 1; i < values.Length; i++ )
    {
        result.AppendFormat(", {0}", values[i]);
    }
    return result.ToString();
}

= ConvertArrayToString(Parameters.MyParameter.Value) Best wishes,
Peter
the Telerik team

[Gerry Connolly]

Hi

I would really like to use this function but I am not sure where to put the code that creates the function.  Could you please tell where the function in created in the project. I am using VS 2012, thanks

[Peter]

Hi Gerry,

As elaborated in the user functions help article, you can add user functions in the report's code behind. Select the target report and press F7 to open the reports code behind. After adding the necessary user functions, in order to list them in expression editor you have to build the project.

Regards,
Peter
the Telerik team

[Gerry Connolly]

Hi Peter

Thanks for your reply, I have tried to add this to the code and rebuild my project but I get errors.  I attach a screenshot of where i am putting the code.  I am not a programmer so forgive me if my query is a little basic. 

Many thanks

Gerry

[Chris Gillies]

Gerry, you're way off. The code snippet in this forum is written in C#, you're using VB. Use the code converter to get going ..