JavaFX 2.0 :: Loading Large Data Set Into Tableview?
Jun 19, 2015I have a huge data set 10000+ rows which I need to show in the tableview. It take a lot of time to render the UI and is slow.
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JavaFX 2.0 :: FXML Tableview - Displaying Data?
May 9, 2014I have an FXML table view. And I want to assign value from an tableview create on class to FXML tableview. But at the end is not displaying data.
Example:
@FXML private TableView fxmlTable;
private TableView insideClassTable;
public class SomeClass
{
public SomeClass(){
insideClassTable = new TableView();
//////////////////////////////////////////////////
Filling insideClassTable with data.
//////////////////////////////////////////////////
fxmlTable= insideClassTable;
}
// some other code and main
}
If I set value to fxmlTable, data are display correctly, but if assign value to insideClassTable first and then make fxmlTable=insideClassTable they are not display.
JavaFX 2.0 :: TableView Cell Colouring
May 12, 2014Here is another cell colouring question with a different take. Say you have a TableView with three columns - Category, In and Out. You add an empty row and then you start editing the Category column. When you have added a category you would like to see a change in the colour of the other two column cells in the same row depending on the category value.
Say if the category is 'income' then the 'In' cell will become green and the 'Out' cell becomes red. The important point here is that these cells and the underlying domain object does not have any values associated with these columns yet. The cells are empty and colour change is to show the user where the value should be put for the given category (into the green cell ).
Therefore after the category value is committed a 'message' needs to be propagated from the category column to the current row (or the whole table) to repaint itself. I have tried calling the following methods from the Category column's 'commit()' method but neither of them triggers a repaint:
- getTableRow().requestLayout();
- getTableRow().updateTableView(getTableView())
- getTableRow().updateIndex(getTableView().selectionModelProperty().get().selectedIndexProperty().get());
Once the re-paint is triggered then both In and Out column table cells can take the current category value from the underlying domain object (say MyRecord) like this
MyRecord record = getTableView().getItems().get(getTableRow().getIndex());
String category = row.getCategory();
and call the setStyle(".....") on the cell to change the colour.
JavaFX 2.0 :: Round Corner In TableView Header
May 20, 2014I'm doing a bit of styling in TableView. The result is quite nice but I can't make the left top corner round. This is the actual result:
[URL] ....
And this is the css :
.table-view {
-fx-background-color: transparent;
}
/*HEADER */
.table-view .column-header{
[Code] .....
I would also like the top left corner was round.
JavaFX 2.0 :: TableView - Misalignment Between Header And Content
May 23, 2014I am facing an issue with the TableView in Java FX 8.
I am having a TableView created with data with scrollbars automatically added in when the Window is minimized.
I moved the horizontal scrollbar to right and then maximized the window to full.
After this the column headers remained no longer aligned with the content. When I click on any column header then the header aligns with the content.
The Issue is replicable also in case when a vertical scrollbar gets automatically added to a table view with preloaded data...
JavaFX 2.0 :: How To Define Indeterminate CheckBox In TableView
Jun 6, 2014I would like to defined a TableView with a column containing a CheckBox.
This can be done with an instruction like this : myColum.setCellFactory(CheckBoxTableCell.forTableColumn(myColumn);
The problem is how to specify that the displayed CheckBox is an indeterminate one ?
JavaFX 2.0 :: Style Column Like Header In TableView
Jul 5, 2014I have a column of my TableView that just shows row numbers, and I would like to style the cells in that column so that they appears just like a column header (so the same styling as the headers use). I presume there is some simple way to do this by tapping into the right style class, but I am not sure which one.
View Replies View RelatedJavaFX 2.0 :: TableView With Dynamic And Updatable Columns
Jan 30, 2015I am trying to code a TableView with dynamic columns and I saw a lot of examples like this one: Creating columns dynamically. But any of those would work for my needs.
Its very simple:
I got a List of Customers, and each one has a List of Buys.
A Buy has a String "buyDetail" and a Date for the ship.
My TableView need to have the first column with the name of the Customer, and one column more for every day of existing ships. We don't know previously which days will be used. If the amount of money is superior of 100, for example, I need to be able of applying different styles.
Example:
Customer2015/01/022015/01/032015/01/09Morgan$400 (buyDetail)0$100Luis00$20Steven$1000Hulk0$5$32
I cant use the Properties because i dont know how many Buys will have each Customer.
My best try (only for the first column) was this, but I cant get the Buy updated if I edit the value in the cell: I didn't try to write the others columns code because I feel that im doing it really wrong.. This Shows the Customer´s names, but I cant handle if that data is edited.
table = new TableView<Customer>();
ObservableList<Customer> lista = FXCollections.observableList(registros);
table.setItems(lista);
TableColumn<Customer, Customer> customerNameColumn = new TableColumn<Customer, Customer>("");
[Code] ....
JavaFX 2.0 :: How To Listen To Change In CheckBox In TableView
Dec 28, 2014I created two CheckBox in 2 tableColumn and I want to listen theire change. I tried
col_orien.setOnEditCommit
But it doesn't work (col_orien is the name of the tablecolumn that contain the check box)
Here is my code :
col_orien.setOnEditCommit(new EventHandler<CellEditEvent<Information,Boolean>>() {
@Override
public void handle(CellEditEvent<Information, Boolean> event) {
System.out.println("Edit commit");
}
});
JavaFX 2.0 :: How To Bind rows Height Of Two Tableview
Jan 20, 2015I want to use to tableview one beside the other so that they appear as a single table. but I do not find how to bound the height rows of the two tableview.
View Replies View RelatedJavaFX 2.0 :: How To Enable Multiselection In TableView Via Mouse Drag
Jun 11, 2014I have multiselection working in my TableView but only via shift-click or using the keyboard but how do I enable the selection of several table rows via a mouse drag? It does not seem to work out of the box.
View Replies View RelatedJavaFX 2.0 :: Change Arrow Color On Header Of TableView
May 20, 2014is possibile to change the color of the sorting arrow that appears in the columns of the Table View by css? My attempts have failed and I have not found any documentation, nor is there any reference in the Modena css.
View Replies View RelatedJavaFX 2.0 :: TableView Single Cell Selection Styling
Jun 6, 2014TableView selection model allows selecting single cells in the table but the default styling highlights the whole row regardless of the actual column selected in the row.
I am just wondering what options are there to change this behaviour so that the actual cell (row/column) get highlighted rather then the whole row.
Something like the $18,000 cell in the "Figure 1 Table overview" in [URL] ....
JavaFX 2.0 :: Styling A TableCell To Indicate Focused Cell In TableView
Sep 15, 2014I am trying to style the TableCell that has focus in a TableView to simulate how Excel does it. Excel uses a white background with a 3px black border which seems to be centered on the nominal cell edges. That is (and this is issue I am having), the border extends outside of the nominal cell boundaries.
My first naive attempt was to to override the CSS for .table-cell as follows:
.table-cell:selected:focused
{
-fx-background-color: white;
-fx-text-fill: -fx-text-base-color;
[Code]....
Doing this fixed problem (1) from the first attempt since this approach tweaks the background colors without affecting overall TableCell size. However, it still puts the black border completely inside the cell. My attempt to set -fx-background-position to a negative value in an attempt to offset the background seems to be ignored.
Having done this before using a Flex AdvancedDataGrid, my solution was to add a layer on top of the grid which renders the focus rectangle. I wonder if I would have to do a similar thing here.
JavaFX 2.0 :: Create List Of Entities - Multi-row Tableview?
Apr 10, 2015I would like to create list of entities which is populated by a search function with the data coming from our REST webservice. However I would like it to be multi-line, with the first line being details from the entity itself and the second line buttons for options that can be performed.
So as an example say my entity is People, the first line would contain columns for first name, last name, gender, DOB, etc. The second line would be buttons for "Edit Person", "Print Person details". With the standard TableView I can't see anyway to alternate between one row of data and another row of buttons.
JavaFX 2.0 :: TableView - Keeping Track Of Topmost Visible Row
Apr 1, 2015I have a TableView and it is scrolled to have some rows visible. Lets call the top visible row T, and the bottom one B.
I now replace the items in the TableView with a whole new list of items (so new data to view), but I want to scroll back to either T or B.
It seems to me that I have to somehow keep track of the topmost visible row, or the bottom-most visible row, but I can't figure out how to do that.
JavaFX 2.0 :: How To Dynamically Load Image Into TableView When Its Row / Cell Becomes Visible
Jan 24, 2015I am building an application that shows tables with large amounts of data containing columns that should display a thumbnail. However, this thumbnail is supposed to be loaded in the background lazily, when a row becomes visible because it is computationally too expensive to to this when the model data is loaded and typically not necessary to retrieve the thumbnail for all data that is in the table.
I have done the exact same thing in the past in a Swing application by doing this:
Whenever the model has changed or the vertical scrollbar has moved:
- Render a placeholder image in the custom cell renderer for this JTable if no image is available in the model object representing the corresponding row
- Compute the visible rows by using getVisibleRect and rowAtPoint methods in JTable
- Start a background thread that retrieves the image for the given rows and sets the resulting BufferedImage in a custom Model Object that was used in the TableModel (if not already there because of an earlier run)
- Fire a corresponding model change event in the EDT whenever an image has been retrieved in the background thread so the row is rendered again
Btw. the field in the model class holding the BufferedImage was a weak reference in this case so the memory can be reclaimed as needed by the application.
What is the best way to achieve this behaviour using a JFX TableView? I have so far failed to find anything in the API to retrieve the visible items/rows. Is there a completely different approach available/required that uses the Cell API? I fail to see it so far.
JavaFX 2.0 :: How To Prevent User From Leaving Tableview Editing Cell In Case Of Errors
May 14, 2014I have a TableCell that will hold numbers in a tableview. All is working work nicely, but I want the following behavior:
- when the user begins to edit such a cell, if it doesn't enter a number, the cell will not call commitEdit, but rather display a red border and prevent the user from changing the focus to anything else until he either: enters a correct number or presses ESC.
I don't know how to keep the user in that editting cell if while he has an incorect number. Currently he can click other row/control and he will break the edditing state. I repeat, I don't want the user to be able to click on any row/control until he has a correct number.
Here is my cell implementation:
public class EditableIntegerCell extends TableCell<Person, Integer> {
private TextField textField;
@Override
public void startEdit() {
if (!isEmpty()) {
super.startEdit();
createTextField();
setText(null);
[Code] .....
JavaFX 2.0 :: Adding Tooltip On Cell Of TableView In Order To Show Some Information To User
May 21, 2014I'm trying to add a tooltip on a cell of a TableView in order to show some information to the user.
This is the code:
colonnaColore.setCellFactory(param -> {
TableCell<Appuntamento, Template> cell = new TableCell<Appuntamento, Template>() {
@Override
protected void updateItem(Template item, boolean empty) {
// calling super here is very important - don't
[Code] ....
In few words: there is a cell factory on the cell to show a colored box, then I added a tooltip to the cell. I need informations that are in the item added to the TableView that has type "Appuntamento". So I try to get my element with these code (that in others part of my code works); but here I get a Null Pointer Exception on cell.getTableView() and also on cell.getTableRow().
I'm probably using these methods in a way that was not expected.
JavaFX 2.0 :: Tableview - Width Of Columns Computed For Content Of Cells And Ignoring Header
Nov 20, 2014I'm using the tableview-component. The size of font of header is greater then that of cells. The problem is: the width of the column bases on the cell with the longest string and if the header-string is longer then the header gets truncated (it shows ellipsis) and I have to change the width of column manually. How could I solve this problem? The easiest way would be to compute the column-width on myself. I can't find any method in javafx, that would allow to compute the width of string in pixels. In Swing there is the FontMetrics class and Graphics class, so it is easy to get the width in pixels. Are there any pendants to this classes in JavaFX?
View Replies View RelatedJavaFX 2.0 :: How To Disable Loading Of Images By WebEngine
Jun 2, 2014I've searched everywhere but found no way to disable loading of images by Java WebEngineHow to do it?
Research done:
I found some ideas, such as using URL.setURLStreamHandlerFactory() to use my own URLStreamHandler, and having that analyze the URL to only return URLConnections for URL's that don't end in .jpg .png etc.
But that has many problems: Sometimes the image url doesn't end in .jpg, if it's a dynamic image, such as a captcha. So how can I disable automatic image loading from WebEngine?
Web API - Loading Json Data
Sep 18, 2014So I would like to get information out of a web-API. But my question is how I do this. I guess I need to read the URL first. And parse it after but what is the best way?
For example : [URL] .....
JavaFX 2.0 :: Loading Localized Versions Of FXML Content?
Nov 25, 2014I am trying to figure out the best way to load localized versions of FXML content. I know that I can localize strings, images etc. by specifying a ResourceBundle when loading the FXML using FXMLLoader with a ResourceBundle. But what about if you need to tweak the FXML for different locales (eg, adding more real estate for certain elements, different fonts, etc). Is there any way to create localized versions of FXML content? The only thing I can come up with is a naming convention like MyForm.fxml, MyForm_de_DE.fxml, ... and trying to load them based on the locale, but I'd have to come up with my own fallback for specific locales that aren't found.
View Replies View RelatedAchieving Performance On Large Data?
Oct 10, 2013I have an application which has 10 million rows and 1000 columns in Oracle. Each value has a different set of calculations that are stored in User Defined PLSQL functions.
Data is displayed in form of data grid. When a user updates any value, the calculation is performed using plsql function and value is stored in database. Is there an easy way through which calculation is performed on the fly and i get maximum performance ?
Android Large Strings / Data
Dec 4, 2014I'm programming an android app where I want to send large sets of data from an MySQL Table to the app and write this data to an SQLite database.So I know i have send an HttpRequest and I can send data with json, but how can I handle large datasets like tables?I think its no good idea to just concatinate a string together in php and then send it?
View Replies View RelatedCorrect Way To Upload Large Data File
Nov 25, 2013Our client has a user facing web application running on Jboss. There is a separate admin application (in its own ear) but deployed on same Jboss server on which user facing web application is running.
They need a screen to upload large amount of data into database. Their original files were in excel with size > 60 mb. We suggested following to them:
a. Change upload format to CSV - this brought down file sizes to 25-30 mb
b. Upload process will be MDB - asynchronous processing of data so that admin web app does not stop responding
We also suggested following to them:
a. Host admin app on a different machine so that user facing site does not respond slow during data processing
b. We can provide incremental upload feature and they should upload files in the chunks of 4-5 mb, specifically if they have user a web page to upload such files - they don't buy this argument though.
c. Data processing can be a separate script instead of a part of admin web application. They can FTP files to a designated location and this script will process those files.
I have following questions:
Q1 - Have you seen upload of such large datafiles to a web application? I see sites like Zoho CRM or Salesforce do not support such data imports and mostly fail or not respond.
Q2 - Is there a set of guidelines/best practices to upload large data files of this nature? How do insurance companies or others with enormous set of data accomplish such tasks (what is the architecture of such programs)?