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POforce close in creating simplecursor adapter
 

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    <p>I have the following code which should display in a list the content from a database (a certain table and a certain column) but I get a force close dialog and I don't know why.</p> <p>This is my code:</p> <pre><code>public class Server8 extends Activity { DBAdapter db; @Override public void onCreate (Bundle savedInstanceState) { setContentView(R.layout.main); db=new DBAdapter(this); db.openDataBase(); Cursor cursor=db.getAllData2(); startManagingCursor(cursor); String[] from=new String[] {db.KEY_ROUTE}; int[] to = new int[] { R.id.name_entry}; ContactListCursorAdapter items = new ContactListCursorAdapter(this, R.layout.list_example_entry, cursor, from, to); } public class ContactListCursorAdapter extends SimpleCursorAdapter{ private Context context; private int layout; public ContactListCursorAdapter (Context context, int layout, Cursor c, String[] from, int[] to) { super(context, layout, c, from, to); this.context = context; this.layout = layout; } @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { Cursor c = getCursor(); final LayoutInflater inflater = LayoutInflater.from(context); View v = inflater.inflate(layout, parent, false); int nameCol = c.getColumnIndex(db.KEY_ROUTE); String name = c.getString(nameCol); TextView name_text = (TextView) v.findViewById(R.id.name_entry); if (name_text != null) { name_text.setText(name); } return v; } @Override public void bindView(View v, Context context, Cursor c) { int nameCol = c.getColumnIndex(db.KEY_ROUTE); String name = c.getString(nameCol); TextView name_text = (TextView) v.findViewById(R.id.name_entry); if (name_text != null) { name_text.setText(name); } } </code></pre> <hr> <p>In my DBAdapter I have this:</p> <pre><code>public static final String TABLE_2= "route"; public static final String KEY_ROWID_2="_id"; public static final String KEY_ROUTE= "route"; public static final String KEY_USER_ID= "user_id"; </code></pre> <p>This is how I query for the cursor:</p> <pre><code>public Cursor getAllData2() { return db.query(TABLE_2, new String[] {KEY_ROUTE},null,null,null,null,null); } </code></pre> <hr> <p>and this is what my logcat gives me:</p> <p>04-30 09:26:24.323: ERROR/AndroidRuntime(2676): Caused by: java.lang.IllegalArgumentException: column '_id' does not exist</p> <p>04-30 09:26:24.323: ERROR/AndroidRuntime(2676): at android.database.AbstractCursor.getColumnIndexOrThrow(AbstractCursor.java:314)</p> <p>04-30 09:26:24.323: ERROR/AndroidRuntime(2676): at android.widget.CursorAdapter.init(CursorAdapter.java:111)</p> <p>04-30 09:26:24.323: ERROR/AndroidRuntime(2676): at android.widget.CursorAdapter.(CursorAdapter.java:90)</p> <p>04-30 09:26:24.323: ERROR/AndroidRuntime(2676): at android.widget.ResourceCursorAdapter.(ResourceCursorAdapter.java:47)</p> <p>04-30 09:26:24.323: ERROR/AndroidRuntime(2676): at android.widget.SimpleCursorAdapter.(SimpleCursorAdapter.java:88)</p> <p>04-30 09:26:24.323: ERROR/AndroidRuntime(2676): at com.server.Server8$ContactListCursorAdapter.(Server8.java:103)</p> <p>04-30 09:26:24.323: ERROR/AndroidRuntime(2676): at com.server.Server8.onCreate(Server8.java:91)</p> <hr> <p>Caused by: java.lang.IllegalArgumentException: column '_id' does not exist</p> <p>I'm not even asking for something like this!!</p> <p>and this is what my <code>TABLE_2</code> looks like:</p> <pre><code>_id route user_id 1 Sebes-Alba 1 ....only one record </code></pre> <p>What I'm doing wrong? Thanks</p>
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