Handle DBNull in C#

Question

Is there a better/cleaner way to do this?

int stockvalue = 0;
if (!Convert.IsDBNull(reader[\"StockValue\"]))
    stockvalue = (int)reader[\"StockValue\"];


        

Answer 1

Not really. You could encapsulate it in a method:

public int getDBIntValue(object value, int defaultValue) {
  if (!Convert.IsDBNull(value)) {
    return (int)value;
  }
  else {
    return defaultValue;
  }

And call it like this:

stockVaue = getDBIntVaue(reader["StockValue"], 0);

Or you could use coalesce in your query to force the returned value to be non-null.

Edit - corrected dumb code errors based on comments received.