/// <summary>
/// Extract the first character with optional upper or lower case
/// </summary>
/// <param name="from">String contents</param>
/// <returns>Character (may be upper or lower case)</returns>
public override object StringToField(string from)
{
if (string.IsNullOrEmpty(from))
{
return(Char.MinValue);
}
try {
switch (mFormat)
{
case CharFormat.NoChange:
return(from[0]);
case CharFormat.Lower:
return(char.ToLower(from[0]));
case CharFormat.Upper:
return(char.ToUpper(from[0]));
default:
throw new ConvertException(from,
typeof(Char),
"Unknown char convert flag " + mFormat.ToString());
}
}
catch {
throw new ConvertException(from, typeof(Char), "Upper or lower case of input string failed");
}
}
