listfield

问题 I tried to implement the custom ListField with checkboxes in blackberry. I'm able to display the list correctly. My requirement is that I need to select some multiple items using the checkbox in blackberry, but I'm not able to change the check and uncheck the checkbox. I tried in navigationClick , CheckBox.setChangeListener , HorizontalFieldManager.setChangeListener methods, but I didn't get any solutions. Can anybody tell me what am I doing wrong? My code is: public class InboxWithCheckboxes

问题 I have a screen which call a listfield . public class Main_AllLatestNews extends MainScreen { private Database_Webservice webservice; private String[] title, category, date, imagepath = {"no picture", "no picture", "no picture", "no picture","no picture","no picture","no picture","no picture","no picture", "no picture"}; private int[] newsid; private List_News newslist; public Main_AllLatestNews(final boolean needdownload) { super(USE_ALL_WIDTH); webservice = new Database_Webservice(); add

问题 Closed. Please refer to here. Thanks 回答1: There is undocumented method setRowHeight(int row, int height) . But no one guarantees that it will be there with next OS update. More details here. Modify you TableRowManager like this: private class TableRowManager extends Manager { private int row; public TableRowManager(int row) { super(0); setRow(row); } public void setRow(int row) { this.row = row; } ... ... public int getPreferredHeight() { return getRowHeight(row); } } 来源： https:/

问题 Here have two list field menu. First brand second item I want if we select brand IBM that item will select IBM too In other hand, if we select brand HP that item will select HP too How to do that in javascript. <select name="brand"> <option>Please Select</option> <option>IBM</option> <option>HP</option> </select> <select name="item"> <option>Please Select</option> <option>IBM</option> <option>HP</option> </select> 回答1: <select name="brand" id="brand" onchange="document.getElementById('item')

问题 In MongoEngine, when deleting an EmbeddedDocument from a ListField which includes a FileField, the referenced file does not get deleted. Currently, I have solved the issue by looping over the whole list field. for embdoc in doc.embdocs: if embdoc.filtered == value: embdoc.dfile.delete() doc.update(pull__embdocs={'filtered': value}) I was wondering if there was a better way to do this. 回答1: By default, MongoDB doesn’t check the integrity of your data, so deleting documents that other documents

问题 I need to implement custom ListField which has height variable for every each row. Selected row should has different height then other rows. 回答1: Well you need to look your self in the mirror and answer "Are Undocumented Methods OK?" if the answer is yes use "ListField.setRowHeight(index,height)" this is available in 4.2.1 4.7 and 5.0 atleast. hope that helps. 来源： https://stackoverflow.com/questions/2737643/blackberry-listfield-with-variable-height-for-each-row

问题 I want to customize a ListField in BlackBerry which would be able to list an image and text in a row. How to accomplish this? 回答1: Try something like this: class TaskListField extends ListField implements ListFieldCallback { private Vector rows; private Bitmap p1; private Bitmap p2; private Bitmap p3; public TaskListField() { super(0, ListField.MULTI_SELECT); setRowHeight(80); setEmptyString("Hooray, no tasks here!", DrawStyle.HCENTER); setCallback(this); p1 = Bitmap.getBitmapResource("1.png"

问题 I'm writing a custom list field, but it doesn't not work when i invoke invalidate method. The screen is always empty, while the data of list field is not null or empty! Please help me figure out the problem. Thank you in advance public class FileListField extends ListField implements ListFieldCallback{ private static final Bitmap fileBitmap = Bitmap.getBitmapResource("document.png"); private static final Bitmap dirBitmap = Bitmap.getBitmapResource("emty_folder.png"); private static final

问题 i have tried this link How to customize a ListField in BlackBerry? to create the ListField with Three lablefields for every list row.but iam not able see the list field items.but i can say that listfield is added.because on navigation click i am able get the selected index of the listfield.please anybody help where iam doing mistake.The code i have tried is... public class InboxWithOutCheckboxeslistfield extends ListField implements ListFieldCallback { private Vector rows; private

问题 It seems hard to find a complete example of using ListField with ForeignField in django-mongo-engine.. my logic looks like below, class GameSession(models.Model): # id => token, is global unique random code id = models.CharField(max_length=45, primary_key=True) def save(self, *args, **kwargs): if not self.pk: self.pk = util.get_random_string(32) super(GameSession, self).save(*args, **kwargs) class GameUser(models.Model): ... game_session = fields.ListField(models.ForeignKey(GameSession)) in