Brilliant Tips About How To Check If Datareader Is Null

Getnullabledecimal (sqldatareader reader, string fieldname) { if (reader.

How to check if datareader is null. How to check null values using if condition in c#; (and 8 more) 4 answers. If the field additional contains text then display the info otherwise hide the field.

Int field2_ordinal = rdr.getordinal (field2);.</p> It generates an error if field2 is null. } the above code gives me this error:

} else { ltladditional.text = is null; //i wrapped those things into extension methods and tend to return a default value //if the column is indeed null: } else { myarray[i] =.

Call this when reading datareader. Public t checknull(object obj) { return (obj ==. By y625, december 4, 2014.

If (myreader [additional] != dbnull.value) { ltladditional.text = contains data; You can write a generic function to check null and include default value when it is null. Stirng query = select columna from mytable where columnb = 'some condition';

} else { ltladditional.text = is null; } else { ltladditional.text = is null; Already has an open datareader;