cursor

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I connect to a DB2 database and makes the following query. I don't understand why I get the error: "invalid cursor state". public static void blivPar() { try { Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE); stmt.setMaxRows(1000); ResultSet drenge = stmt.executeQuery("SELECT * FROM People WHERE sex='M'"); ResultSet piger = stmt.executeQuery("SELECT * FROM People WHERE sex='F'"); drenge.first(); piger.first(); int i=0; while(drenge.next()) { while(piger.next()) { i++; System.out.print(i);

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I've been trying to do so and couldn't make it, this is what I got to : [DllImport("user32.dll")] static extern bool SetSystemCursor(IntPtr hcur, uint id); [DllImport("user32.dll", EntryPoint = "GetCursorInfo")] public static extern bool GetCursorInfo(out CURSORINFO pci); [DllImport("user32.dll", EntryPoint = "CopyIcon")] public static extern IntPtr CopyIcon(IntPtr hIcon); [StructLayout(LayoutKind.Sequential)] public struct CURSORINFO { public Int32 cbSize; // Specifies the size, in bytes, of the structure. public Int32 flags; // Specifies

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am using a notebook without a mouse. After typing prop and pressing tab , Visual Studio will automatically give me a property template. Pressing tab will move the cursor between type and propertyname placeholders. I want to move the cursor to a new line after completing the property template. Is there a shortcut to do so? 回答1: Press the Enter key twice. I tried to post this answer 3 times before I left the comment. It wouldn't let me, too short. That's why I'm typing this otherwise useless verbiage. 回答2: It's not specific to

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am iterating thru an indexedDB data store, adding data to a JavaScript array. How can I tell when the cursor is at the end, so I can sort the array and act on it? onsuccess is called when a row has been retrieved from the cursor - is there another callback when the entire cursor has been navigated? 回答1: The result ( event.target.result ) of a successful cursor request is either a cursor object or null. If event.target.result is set, it's the cursor, and you can access event.target.result.value . You can then call event.target.result

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am developing a virtual keyboard with Qt Embedded, and I'm confronted with a little problem. In fact, I use SignalMappers to map the key to keyboard events in order to display text in a QTextEdit widget. Everything works fine, except for two events : Key_Return and Key_Delete ; I have no idea what I'm doing wrong, maybe you'll have an idea. Here is a classical code, to send chars : void VirtualKeyboard::SendChar( int index ) { QChar charToSend( letters_.at( index )->text().at( 0 ) ); // Get char server_->sendKeyEvent( charToSend.unicode(),

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: How to create new table which structure should be same as another table I tried CREATE TABLE dom AS SELECT * FROM dom1 WHERE 1=2 but its not working error occurred 回答1: Try: Select * Into From Where 1 = 2 Note that this will not copy indexes, keys, etc. If you want to copy the entire structure, you need to generate a Create Script of the table. You can use that script to create a new table with the same structure. You can then also dump the data into the new table if you need to. If you are using Enterprise Manager, just right-click the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have cursor initialized as follows: @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //...Code, code, code... c = db.query("US_States", null, null, null, null, null, null, null); } The cursor itself is used in a separate method within the same activity: public void GameStart() { int gameCount = 0; while(gameCount It gives me the following error: E/CursorWindow： Failed to read row 20, column 2 from a CursorWindow which has 50 rows, 2 columns. With a stack trace pointing at this line

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have multiple twitter dev keys that I am using to get followers from a list of handles. There are two ways I can do this but have a problem with both. The first: try: .... for user in tweepy.Cursor(api.followers, screen_name=screenName).items(): .... except tweepy.TweepError as e: errorCode = e.message[0]['code'] if errorCode == 88: print "Rate limit exceeded." rotateKeys() The issue here is that every time I rotate keys, the for loop starts from scratch and starts getting the followers again. I tried to get around this but splitting the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I need to check to see if a column exists and if it doesn't exist add it. From my research it looks like sqlite doesn't support IF statements and case statement should be used instead. Here is what I have so far: SELECT CASE WHEN exists ( select * from qaqc . columns where Name = "arg" and Object_ID = Object_ID ( "QAQC_Tasks" )) = 0 THEN ALTER TABLE QAQC_Tasks ADD arg INT DEFAULT ( 0 ); But I get the error: Near "ALTER": Syntax error. Any ideas? 回答1: You cannot use ALTER TABLE with case . You are looking for getting the column

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I need to change the cursor in all windows, not just in the application, i have try this: this.Cursor = Cursors.WaitCursor; And this: System.Windows.Forms.Cursor.Current = System.Windows.Forms.Cursors.WaitCursor; But it only changes the cursor in my application. Any idea? 回答1: Assuming you have your own cursor file (.cur) to apply you could hack this. First you will have to change thje default Arrow cursor in the Registry, then you will need to call some P-Invoke to allow the OS to update the current sytem paramerters so the cursor actually