Question

I am currently developing a C# MySQL Export Utility. Due to this I am not going to know the fields or the data types of each field in the table.

When I export the data from the table in the database it displays a MySQLConversionException stating that it is unable to Covert MySQL Date/Time to System.DateTime. It was doing this when I ran the code:

if (!reader.isDBNull(fieldCount)){}

However, when the exception was thrown on this line I fixed it by adding Allow Zero DateTime=true to the MySQL Connection string but not it is displaying the error when I run the code

string value = reader.getString(field);

How can I get around this issue bearing in mind I am not going to know what data type is or what the value is going to be.

Thanks for any help you can provide.

Answer 1

You can get the raw value as object:

object value = reader[field];

Then decide what to do based on its type:

if (value is string)
{
    string sVal = value.ToString();
    //handle as string...
}
else if (value is DateTime)
{
    DateTime dtVal = (DateTime)value;
    //handle as DateTime...
}
else
{
    //some other type
}

Maybe not elegant, but should work.