A would like to add default text when the drop-down menu is loaded on my view. How can I do this in SWT and JFace?
I'm guessing what you want to do is to show something in the combo when it has been added to the view (it's blank by default until something is selected or typed).
If you want to set a default text displayed until a selection has been made / until the field has been edited, e.g. - Select option -, then you can use:
Combo.setText(String string)
Note, this is not possible if the Combo is SWT.READ_ONLY
If you want to set one of the values in the drop-down as default use the select method:
Combo.select(int index)
Related
So basically I'm new to oracle apex, i have created a blank page in an mobile application in apex and then created a static region having a select list.
Noticed that the select list item is to the right of the screen, i know i can use css to move it to the required spot, but when I did a page inspection, noticed that #BODY# had other divs as well and wanted to know whether the divs or spans under #BODY# can be edited, if so from where and how?
OK then, a Select List item it is.
Select it
in its properties (on the right hand side of the screen), you'll see the Layout section
in there, there are some properties you might find interesting
column - set to "Automatic" by default, and yes - it positions the item "right" on the screen (I don't know why Apex authors decided to do it that way; I'd be happier if it was "left"), somewhere to the 4th of 5th column. What does that column mean? When you run the page, there's the bottom toolbar available to developers. In version 5.x, there's the option (I can't remember its name; most probably it is "Show layout columns") which enables you to show the grid - you'll see vertical "lines" (columns) and see where's each of your items positioned. On Apex 18.1 (available at apex.oracle.com), you'd click "Page info" and select "Show layout columns".
so, if you want to move it left, set the "Column" property to 1 (1st column on the screen)
modifying the "Column" property might require adjusting two additional properties: "Column span" and "Label column span".
I suggest you try to set those properties to different values and see what happens. Apex will inform you if you set something irregular.
Is there a way to show a hover message on an editable cell/ListGridField while in Edit mode?
Was able to have a hover message over a cell in non-edit mode by :
cusipField.setShowHover(true);
cusipField.setHoverCustomizer(getCusipHoverCustomizer());
Thank you
You should be able to manipulate the properties of the editor that is created when you enter edit mode for a field through an appropriate FormItem and the ListGridField.setEditorProperties(FormItem editorProperties) method. For example, if your field is storing texts, you shall create a TextItem and define the hover text using its setPrompt(java.lang.String prompt) method. Then use that TextItem to set the editor properties for the field.
i have an combobox in a gridcolumn and the requirment is to show only nonselected values in the dropdown list for the next combo selection
One possibility is to use the superselectbox. If you want to customize the standard combobox, you can take a look at the superselectbox source code - it is actually extended combobox.
I have a full search panel with listbox whose value are read from DB.when a item in listbox selected and search is made.If the results are not found the search panel is condensed (one more search panel) and in condensed search ,we can change the search criteria ,selected a different item in the list box .after changing the search criteria and if search is made ,when the full search panel appears,the value of the list box in full search panel should be same as the one changed/selected in the condensed search panel.
How can we accomplish this.
In simple - If i have two list boxes, load a list box and set the value of the listbox same the other listbox.If value of one listbox is changed, the other should be changed and the value of this listbox is set with the value selected in the previous one.
I would do the following
//you have something like this
ListBox listbox1;
ListBox listbox2;
//add a change handler
listbox1.addChangeHandler(new ChangeHandler() {
#Override
public void onChange(ChangeEvent event)
{
int index = listbox1.getSelectedIndex();
//do your update code here for listbox2
//like a listbox2.setSelectedIndex(index) or something
}
As far as I see its an easy implementation. Add a value change handler on the first listbox and do whatever you want in onChange method.
Regarding your panel need to be collapsed when there is no search results, you can always use vertical panel and set its height to 100% and add another panel to it or Use Dock Panel and add panels to south or best use disclosure panel and play around with it.
In GWT, I am using CellTable.
When you mouse over the CellTable it highlights each row.
How do change the behavior of the highlighting from the mouse over? Specifically:
change the color of highlighting
disable/enable
make it highlight only the specific grid item at your cursor (instead of the entire row)
( The current hack I have is to create a bunch of 1 column wide CellTables and add them to a VerticalPanel layout... creating the illusion that there is one CellTable and it highlights each grid according to your cursor. Is this bad? Why? performance? )
You will notice the CellTable uses a ResourceBundle, which means all the css styles get obfuscated ... this makes it more difficult to override styles.
The CellTable constructor will actually allow you to override the default ResourceBundle. So first, you need to create your own resource bundle like this:
public interface CellTableResources extends Resources {
public CellTableResources INSTANCE =
GWT.create(CellTableResources.class);
/**
* The styles used in this widget.
*/
#Source("CellTable.css")
CellTable.Style cellTableStyle();
}
Then you need to create your own CSS file. I recommend copying the CellTable style directly into your project and use that as a starting point. You can find it here:
http://code.google.com/p/google-web-toolkit/source/browse/trunk/user/src/com/google/gwt/user/cellview/client/CellTable.css
Make sure the style is injected first, and then you just feed it into the CellTable's constructor like this:
CellTableResources.INSTANCE.cellTableStyle().ensureInjected();
myCellTable = new CellTable<T>(Integer.MAX_VALUE,CellTableResources.INSTANCE);
Specifically, you'll want to tweak these styles:
cellTableKeyboardSelectedRow
cellTableKeyboardSelectedRowCell
cellTableSelectedRow
cellTableSelectedRowCell
cellTableKeyboardSelectedCell
It is important to note that the cell table differentiates between the 'selected row' and the 'keyboard selected row'. The selected row is the actual row selected (ie via SelectionModel). The keyboard selected row refers to what is highlighted when the user is pressing the up / down key, but does not mean the row is actually selected (if that makes sense).
I'll just add for number 2) on your list, you can simply do
cellList.setSkipRowHoverStyleUpdate(true)
That completely disables highlighting. There are also two more setSkip-functions on CellList related to hovering.
CellTable can be styled via CSS: How do I style a gwt 2.1 CellTables headers?
To disable highlighting just set the hover CSS property to nothing.
Possibly - try tweaking the .cellTableSelectedRow and .cellTableSelectedRowCell.
Here is the original CellTable.css: http://www.google.com/codesearch/p?hl=en#A1edwVHBClQ/user/src/com/google/gwt/user/cellview/client/CellTable.css&q=cellTableLastColumn&d=8