Re: struct

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Mohammad wrote: 
14 7/8" x 8 1/2" wrote:

I want to use a struct to constrain a result.

The result is a string composed of several strings of fixed length;

Result is composed of 3 strings, each 4 char in length.

Can I build a struct that would enforce such a construct? 

Yes you can, something like the following:

struct MyResult
{
    private string s1 = string.Empty;
    private string s2 = string.Empty;
    private string s3 = string.Empty;


I tried doing this and VS.NET reports:

"cannot have instance field initializers in structs"




    public string S1
    {
        get
        {
            return s1;
        }

        set
        {
            if ( value.Length <= 3 )
                s1 = value;
            else
                throw new InvalidOperationExcpetion();
        }
    }

    // repeat for S2 and S3

}

.