Question

int columnIndexFromAddrCountry;

public FavoritesActAdapter(Context context, int layout, 
        Cursor c, String[] from, int[] to) {
    super(context, layout, c, from, to);
    gnCursor = c;

    columnIndexFromAddrCountry = 
        c.getColumnIndex(DBAdapter.KEY_FROM_ADDR_COUNTRY);

}

@Override
public void bindView(View view, Context context, Cursor cursor) {
    gnCursor = getCursor();

    final String fromAddrCountry = 
        gnCursor.getString(columnIndexFromAddrCountry);

        ...

        super.bindView(view, context, cursor);
}

Why am I getting an IllegalStateException?

IllegalStateException: get field slot
from row 0 col -1 failed

What does this Exception mean? The Exception is thrown for this line

final String fromAddrCountry = gnCursor.getString(columnIndexFromAddrCountry);

because columnIndexFromAddrCountry is -1.
The column exists and ten other columns can be resolved. What can causes this problem?

Thanks in advance!

Answer 1

What is DBAdapter.KEY_FROM_ADDR_COUNTRY set to?

From the Cursor doc

public abstract int getColumnIndex
(String columnName)

Since: API Level 1 Returns the
zero-based index for the given column
name, or -1 if the column doesn’t
exist. If you expect the column to
exist use
getColumnIndexOrThrow(String) instead,
which will make the error more clear

So you can use the getColumnIndexOrThrow(String) to have a better error message that will help you debugging.