cursor

问题 I'm using css/js to change the class of an element which the pointer is hoving over. The class determines the custom cursor image. Unfortunately, it seems as if the cursor does not update in Chrome unless I physically move the mouse. Unfortunately the app is primarily used through the keyboard, however the cursor image is pretty important. Any way around this? Thanks. 回答1: This is actually a documented bug in Chrome and Safari. See this question on StackOverflow: Getting the browser cursor

问题 I have an existing TABLE postn_matrix which contains a list of employees and a count of their resp. positions in the organisation. Whenever a position of a user is added or removed, the corresponding count is reflected in the table thro' this trigger (VIA UPDATE) Now, if there is a new user, he will not have an entry in postn_matrix , so I have to insert a new record for him/her (VIA INSERT). This needs to be brought in from the BASE TABLE. The update seems to be working fine but I am not

问题 my need is to make a reports with a list of some people and their invoice; Since I am generating some XML (XML publisher) a way is to use cursor expression. The SQL request consist of a first cursor that give a list of contact(s), and a second cursor inside the first one list the invoice(s) for each contact. The problem is that the contact SQL request returns several times the same contact (as many as he has invoices in fact) so I need to use distinct, and it doesn't work ! To have a request

问题 I have a method to return a Cursor, however it unfortunately spawns a NullPointerException for some reason. Here's the method, is there anything wrong with it?: public Cursor getRandom(String tableName) { return db.query(tableName + " Order BY RANDOM() LIMIT 1", new String[] {KEY_ID, KEY_TEXT}, null, null, null, null, null); } 回答1: The order by statement is in the wrong place. SQLiteDatabase.query(String table, String[] columns, String selection, String[] selectionArgs, String groupBy, String

问题 I have a .cur file path ( "%SystemRoot%\cursors\aero_arrow.cur" ) witch I want to display in an image control. So I need to convert Cursor to ImageSource. I tried both CursorConverter and ImageSourceConverter but had no luck. I also tried creating Graphics from the cursor and then converting it to Bitmap, But that didn't work either. Then I found the accepted answer in this thread: http://social.msdn.microsoft.com/Forums/vstudio/en-US/87ee395c-9134-4196-bcd8-3d8e8791ff27/is-there-any-way

问题 I have an ArrayList (in C#) that contains some int numbers (those are IDs in a table), I want to select some data for each number(s) in this ArrayList and return a table variable or a #temporary table :) I found a solution for passing this ArrayList as an user-defined table type to my stored procedure: CREATE TYPE [dbo].[integer_list_tbltype] AS TABLE( [n] [int] NOT NULL, PRIMARY KEY CLUSTERED ([n] ASC) WITH (IGNORE_DUP_KEY = OFF) ) GO CREATE PROCEDURE [dbo].[Sp_apr_get_apraisors] (

问题 This question already has answers here : Android EditText listener for cursor position change (8 answers) Closed 4 years ago . I'm looking for a way to detect a cursor position changed in an EditText. I couldn't find anything in the documentation so far. Has anyone solved this already? 回答1: You can override onSelectionChanged (int selStart, int selEnd) to get notified about selection changes. If the cursor is moved, this is called as well (in this case selStart == selEnd) 来源： https:/

问题 I've tried this it seems to be working for everyone but not for me. If you want to extra information inform me and i'll add it. My Code: import android.net.Uri; import android.os.Bundle; import android.provider.Contacts; import android.app.Activity; import android.content.ComponentName; import android.content.Intent; import android.database.Cursor; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import com

问题 I have an ExpandableListView that uses a SimpleCursorTreeAdapter which uses the cursors returned by a ContentProvider. This is fine as it always keeps in sync with the data but sometimes I need to do many changes to the database so that the cursor is requeried many times in the same second. Is it possible to suspend the notification of ContentObservers to avoid unnecessary requerys? 回答1: A possible solution is to modify the content provider to allow suspending notifications. URIs to be

问题 I have an AutoCompleteTextView , which shows dropdown list of suggestions taken from a SQLiteDatabase query. At the moment it uses SimpleCursorAdapter , however there are several problems with it (I have a separate question about the issue here: SimpleCursorAdapter issue - "java.lang.IllegalStateException: trying to requery an already closed cursor"). Nevertheless, I was advised to look in the direction of CursorLoader and LoaderManager , and I've tried it, yet couldn't make it work . I'd be