Question

I have a foreach loop going that is adding e-mail address to an array. At the end I join the array and push it into a string.

I have an issue when someone in the database has a blank email address it messes up my logic. Can someone help me fix this?

TestGuy1: 
TestGuy2: [e-mail]
TestGuy3: [e-mail]

With the above information it creates a 3 length array and then turns it into a string like so:

sEmailList  "[e-mail],[e-mail],"  string

Code:

DataTable GetUserReportsToChain = objEmployee.GetUserReportsToChain(LoginID, ConfigurationManager.AppSettings.Get("Connection").ToString());

int RowCount = GetUserReportsToChain.Rows.Count;
string[] aEmailList = new string[RowCount];
int iCounter = 0;
foreach (DataRow rRow in GetUserReportsToChain.Rows)
{
    if (rRow["usrEmailAddress"].ToString() != "")
    {
        aEmailList[iCounter] = rRow["usrEmailAddress"].ToString();
        iCounter++;
        //String email = rRow["usrEmailAddress"].ToString(); 
    }
}

string sEmailList = String.Join(",", aEmailList);

Any idea how I can fix this when the database has a blank value for e-mail?

Answer 1

All in one

var sEmailList = String.Join(",", 
      GetUserReportsToChain.Rows
      .Cast<DataRow>()
      .Select(m => m["usrEmailAddress"].ToString())
      .Where(x => !string.IsNullOrWhiteSpace(x)));