SSRS: how to extract only numeric values from a string in SSRS

Hi All,

I have a report which is redirecting to a subreport. The main report is having multi value parameter. I need to pass these  multi values to sub report. Passing parameters from MDX report to T-sql report. So, I'm using the below exp.

=SPLIT(REPLACE(TRIM(Join(Parameters!Grade.Label,",")),",   ",","),",")

The value will look like this

01-Manger

02-Senior Mange

21-Associate

25-Associate Trainee

This is working for me in all the cases except one. In all other cases, the parameter's Label and Value field has same data in the sub report. But, in a specific parameter I'm getting Label and Value data are different. I'm getting an alpha numeric string value from MDX report , but I need to pass only the numeric values to the sub report since its value field contains only numeric value. The numeric value is coming at the starting of the string data. So I have used Mid()

Julie