JavaFX pulling value from nth column of every row in a TableView
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Sorry about the title, I couldn't think of anything better for it.
The following table is what I'm working with currently
Below is my code for creating the columns and and populating three of the 4 columns automatically from an ObservableList. The 4th column, # ordered, is editable by the user. My goal is to iterate through every row and update the item of that row with the value that the user has entered for it. I have had success iterating through the rows and getting the Item objects from the row but I have not been able to find a proper way to get the order value for that row.
TableView tableView = new TableView();
TableColumn itemCodeColumn = new TableColumn("Item Code");
TableColumn itemDescriptionColumn = new TableColumn("Description");
TableColumn numAvailableColumn = new TableColumn("# in Stock");
TableColumn numOrderColumn = new TableColumn("# Ordered");
itemCodeColumn.setCellValueFactory(new PropertyValueFactory<Item,Integer>("itemCode"));
itemDescriptionColumn.setCellValueFactory(new PropertyValueFactory<Item,String>("itemDesc"));
numAvailableColumn.setCellValueFactory(new PropertyValueFactory<Item,Integer>("quantity"));
I have been able to access all items found in my tableView using the following
for(Object it : tableView.getItems()){
Item it2 = (Item) it;
}
however this only gives me a reference to the object to update the ordered value, I still need a way to pull the actual order number from the table. To do this I used the following piece of code I found online. Note that itemGUIList is an ObservableList that is used to populate the table.
for(int c=0;c<itemGUIList.size();c++){
Object o;
o = tableView.getColumns().get(c).getCellObservableValue(0).getValue();
}
The problem that I ran into here was that the method getCellObservableValue() gave me the error "cannot find symbol". Searching for this did not give me any results and this piece of code seemed to be working for everyone else.
If anyone is able to point out either what I am missing, or if there is better way to solve this problem I would greatly appreciate it. If you need me to post anymore of my code then please let me know and I will. Thank you ahead of time.
java user-interface javafx
add a comment |
Sorry about the title, I couldn't think of anything better for it.
The following table is what I'm working with currently
Below is my code for creating the columns and and populating three of the 4 columns automatically from an ObservableList. The 4th column, # ordered, is editable by the user. My goal is to iterate through every row and update the item of that row with the value that the user has entered for it. I have had success iterating through the rows and getting the Item objects from the row but I have not been able to find a proper way to get the order value for that row.
TableView tableView = new TableView();
TableColumn itemCodeColumn = new TableColumn("Item Code");
TableColumn itemDescriptionColumn = new TableColumn("Description");
TableColumn numAvailableColumn = new TableColumn("# in Stock");
TableColumn numOrderColumn = new TableColumn("# Ordered");
itemCodeColumn.setCellValueFactory(new PropertyValueFactory<Item,Integer>("itemCode"));
itemDescriptionColumn.setCellValueFactory(new PropertyValueFactory<Item,String>("itemDesc"));
numAvailableColumn.setCellValueFactory(new PropertyValueFactory<Item,Integer>("quantity"));
I have been able to access all items found in my tableView using the following
for(Object it : tableView.getItems()){
Item it2 = (Item) it;
}
however this only gives me a reference to the object to update the ordered value, I still need a way to pull the actual order number from the table. To do this I used the following piece of code I found online. Note that itemGUIList is an ObservableList that is used to populate the table.
for(int c=0;c<itemGUIList.size();c++){
Object o;
o = tableView.getColumns().get(c).getCellObservableValue(0).getValue();
}
The problem that I ran into here was that the method getCellObservableValue() gave me the error "cannot find symbol". Searching for this did not give me any results and this piece of code seemed to be working for everyone else.
If anyone is able to point out either what I am missing, or if there is better way to solve this problem I would greatly appreciate it. If you need me to post anymore of my code then please let me know and I will. Thank you ahead of time.
java user-interface javafx
Could you show the declaration of itemGUIList and the table population part?
– bakcsa83
Nov 21 '18 at 21:17
@bakcsa83ObservableList<Item> itemGUIList =FXCollections.observableArrayList();
and the items are added to the list by the user, I have another interface where the user inputs the information for the item and then I add it to the list via the followingitemGUIList.add(newItem);
– AFC
Nov 21 '18 at 23:40
add a comment |
Sorry about the title, I couldn't think of anything better for it.
The following table is what I'm working with currently
Below is my code for creating the columns and and populating three of the 4 columns automatically from an ObservableList. The 4th column, # ordered, is editable by the user. My goal is to iterate through every row and update the item of that row with the value that the user has entered for it. I have had success iterating through the rows and getting the Item objects from the row but I have not been able to find a proper way to get the order value for that row.
TableView tableView = new TableView();
TableColumn itemCodeColumn = new TableColumn("Item Code");
TableColumn itemDescriptionColumn = new TableColumn("Description");
TableColumn numAvailableColumn = new TableColumn("# in Stock");
TableColumn numOrderColumn = new TableColumn("# Ordered");
itemCodeColumn.setCellValueFactory(new PropertyValueFactory<Item,Integer>("itemCode"));
itemDescriptionColumn.setCellValueFactory(new PropertyValueFactory<Item,String>("itemDesc"));
numAvailableColumn.setCellValueFactory(new PropertyValueFactory<Item,Integer>("quantity"));
I have been able to access all items found in my tableView using the following
for(Object it : tableView.getItems()){
Item it2 = (Item) it;
}
however this only gives me a reference to the object to update the ordered value, I still need a way to pull the actual order number from the table. To do this I used the following piece of code I found online. Note that itemGUIList is an ObservableList that is used to populate the table.
for(int c=0;c<itemGUIList.size();c++){
Object o;
o = tableView.getColumns().get(c).getCellObservableValue(0).getValue();
}
The problem that I ran into here was that the method getCellObservableValue() gave me the error "cannot find symbol". Searching for this did not give me any results and this piece of code seemed to be working for everyone else.
If anyone is able to point out either what I am missing, or if there is better way to solve this problem I would greatly appreciate it. If you need me to post anymore of my code then please let me know and I will. Thank you ahead of time.
java user-interface javafx
Sorry about the title, I couldn't think of anything better for it.
The following table is what I'm working with currently
Below is my code for creating the columns and and populating three of the 4 columns automatically from an ObservableList. The 4th column, # ordered, is editable by the user. My goal is to iterate through every row and update the item of that row with the value that the user has entered for it. I have had success iterating through the rows and getting the Item objects from the row but I have not been able to find a proper way to get the order value for that row.
TableView tableView = new TableView();
TableColumn itemCodeColumn = new TableColumn("Item Code");
TableColumn itemDescriptionColumn = new TableColumn("Description");
TableColumn numAvailableColumn = new TableColumn("# in Stock");
TableColumn numOrderColumn = new TableColumn("# Ordered");
itemCodeColumn.setCellValueFactory(new PropertyValueFactory<Item,Integer>("itemCode"));
itemDescriptionColumn.setCellValueFactory(new PropertyValueFactory<Item,String>("itemDesc"));
numAvailableColumn.setCellValueFactory(new PropertyValueFactory<Item,Integer>("quantity"));
I have been able to access all items found in my tableView using the following
for(Object it : tableView.getItems()){
Item it2 = (Item) it;
}
however this only gives me a reference to the object to update the ordered value, I still need a way to pull the actual order number from the table. To do this I used the following piece of code I found online. Note that itemGUIList is an ObservableList that is used to populate the table.
for(int c=0;c<itemGUIList.size();c++){
Object o;
o = tableView.getColumns().get(c).getCellObservableValue(0).getValue();
}
The problem that I ran into here was that the method getCellObservableValue() gave me the error "cannot find symbol". Searching for this did not give me any results and this piece of code seemed to be working for everyone else.
If anyone is able to point out either what I am missing, or if there is better way to solve this problem I would greatly appreciate it. If you need me to post anymore of my code then please let me know and I will. Thank you ahead of time.
java user-interface javafx
java user-interface javafx
asked Nov 21 '18 at 21:04
AFCAFC
349
349
Could you show the declaration of itemGUIList and the table population part?
– bakcsa83
Nov 21 '18 at 21:17
@bakcsa83ObservableList<Item> itemGUIList =FXCollections.observableArrayList();
and the items are added to the list by the user, I have another interface where the user inputs the information for the item and then I add it to the list via the followingitemGUIList.add(newItem);
– AFC
Nov 21 '18 at 23:40
add a comment |
Could you show the declaration of itemGUIList and the table population part?
– bakcsa83
Nov 21 '18 at 21:17
@bakcsa83ObservableList<Item> itemGUIList =FXCollections.observableArrayList();
and the items are added to the list by the user, I have another interface where the user inputs the information for the item and then I add it to the list via the followingitemGUIList.add(newItem);
– AFC
Nov 21 '18 at 23:40
Could you show the declaration of itemGUIList and the table population part?
– bakcsa83
Nov 21 '18 at 21:17
Could you show the declaration of itemGUIList and the table population part?
– bakcsa83
Nov 21 '18 at 21:17
@bakcsa83
ObservableList<Item> itemGUIList =FXCollections.observableArrayList();
and the items are added to the list by the user, I have another interface where the user inputs the information for the item and then I add it to the list via the following itemGUIList.add(newItem);
– AFC
Nov 21 '18 at 23:40
@bakcsa83
ObservableList<Item> itemGUIList =FXCollections.observableArrayList();
and the items are added to the list by the user, I have another interface where the user inputs the information for the item and then I add it to the list via the following itemGUIList.add(newItem);
– AFC
Nov 21 '18 at 23:40
add a comment |
1 Answer
1
active
oldest
votes
In your declaration of the TableView
, you're using the raw type.
This results in the type of tableView.getColumns()
being ObservableList
and therefore the type of tableView.getColumns().get(c)
being Object
, which does not contain a getCellObservableValue
method.
You should add a type parameter to the declaration, even if you're using ?
to fix this issue:
TableView<Item> tableView = new TableView<>();
or
TableView<?> tableView = new TableView<>();
Note:
It's preferable not to use the raw type, if possible, since this allows the compiler to do some type checking and also you avoid having to write some casts in your code, e.g.
for(Object it : tableView.getItems()) {
Item it2 = (Item) it;
}
could simply be changed to
for(Item it2 : tableView.getItems()) {
}
Actually using the TableColumn
to retrieve the number of orders shouldn't be necessary though. You could simply retrieve it from the item itself (or the other location where this data is stored), e.g.:
Item item = tableView.getItems().get(0);
int ordered = item.getOrdered();
Hi there, so I did what you said with changing tableView to be of type Item and I can finally use getCellObservableValue with the table which is very nice. However I have run into one more issue. As you mentioned I could skip the whole process of getting the 'ordered' value from the table and use item.getOrdered(). However the items have a default value of 0 for their ordered variable. On top of this, the 4th column on the table is not tied to the Item ObservableList and updated from it. Because of this, getCellObservableValue() cannot pull the value from that cell.
– AFC
Nov 21 '18 at 23:33
I ran out of characters on the pervious comment. On top of that, if I tie the ordered column to the item observableList, then change that value by editing it, getCellObservableValue() will return 0 every time since every item defaults to 0, even after I edit the value to be any other Integer, it will return only 0. Is there a way I can return either the edited value of the # ordered while having it tied to the ObservableList or not tie it to the list and still get the value that is put in by the user. Thank you very much for the help by the way
– AFC
Nov 21 '18 at 23:36
Where do you store the data? What do you use ascellValueFactory
?
– fabian
Nov 22 '18 at 3:08
add a comment |
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In your declaration of the TableView
, you're using the raw type.
This results in the type of tableView.getColumns()
being ObservableList
and therefore the type of tableView.getColumns().get(c)
being Object
, which does not contain a getCellObservableValue
method.
You should add a type parameter to the declaration, even if you're using ?
to fix this issue:
TableView<Item> tableView = new TableView<>();
or
TableView<?> tableView = new TableView<>();
Note:
It's preferable not to use the raw type, if possible, since this allows the compiler to do some type checking and also you avoid having to write some casts in your code, e.g.
for(Object it : tableView.getItems()) {
Item it2 = (Item) it;
}
could simply be changed to
for(Item it2 : tableView.getItems()) {
}
Actually using the TableColumn
to retrieve the number of orders shouldn't be necessary though. You could simply retrieve it from the item itself (or the other location where this data is stored), e.g.:
Item item = tableView.getItems().get(0);
int ordered = item.getOrdered();
Hi there, so I did what you said with changing tableView to be of type Item and I can finally use getCellObservableValue with the table which is very nice. However I have run into one more issue. As you mentioned I could skip the whole process of getting the 'ordered' value from the table and use item.getOrdered(). However the items have a default value of 0 for their ordered variable. On top of this, the 4th column on the table is not tied to the Item ObservableList and updated from it. Because of this, getCellObservableValue() cannot pull the value from that cell.
– AFC
Nov 21 '18 at 23:33
I ran out of characters on the pervious comment. On top of that, if I tie the ordered column to the item observableList, then change that value by editing it, getCellObservableValue() will return 0 every time since every item defaults to 0, even after I edit the value to be any other Integer, it will return only 0. Is there a way I can return either the edited value of the # ordered while having it tied to the ObservableList or not tie it to the list and still get the value that is put in by the user. Thank you very much for the help by the way
– AFC
Nov 21 '18 at 23:36
Where do you store the data? What do you use ascellValueFactory
?
– fabian
Nov 22 '18 at 3:08
add a comment |
In your declaration of the TableView
, you're using the raw type.
This results in the type of tableView.getColumns()
being ObservableList
and therefore the type of tableView.getColumns().get(c)
being Object
, which does not contain a getCellObservableValue
method.
You should add a type parameter to the declaration, even if you're using ?
to fix this issue:
TableView<Item> tableView = new TableView<>();
or
TableView<?> tableView = new TableView<>();
Note:
It's preferable not to use the raw type, if possible, since this allows the compiler to do some type checking and also you avoid having to write some casts in your code, e.g.
for(Object it : tableView.getItems()) {
Item it2 = (Item) it;
}
could simply be changed to
for(Item it2 : tableView.getItems()) {
}
Actually using the TableColumn
to retrieve the number of orders shouldn't be necessary though. You could simply retrieve it from the item itself (or the other location where this data is stored), e.g.:
Item item = tableView.getItems().get(0);
int ordered = item.getOrdered();
Hi there, so I did what you said with changing tableView to be of type Item and I can finally use getCellObservableValue with the table which is very nice. However I have run into one more issue. As you mentioned I could skip the whole process of getting the 'ordered' value from the table and use item.getOrdered(). However the items have a default value of 0 for their ordered variable. On top of this, the 4th column on the table is not tied to the Item ObservableList and updated from it. Because of this, getCellObservableValue() cannot pull the value from that cell.
– AFC
Nov 21 '18 at 23:33
I ran out of characters on the pervious comment. On top of that, if I tie the ordered column to the item observableList, then change that value by editing it, getCellObservableValue() will return 0 every time since every item defaults to 0, even after I edit the value to be any other Integer, it will return only 0. Is there a way I can return either the edited value of the # ordered while having it tied to the ObservableList or not tie it to the list and still get the value that is put in by the user. Thank you very much for the help by the way
– AFC
Nov 21 '18 at 23:36
Where do you store the data? What do you use ascellValueFactory
?
– fabian
Nov 22 '18 at 3:08
add a comment |
In your declaration of the TableView
, you're using the raw type.
This results in the type of tableView.getColumns()
being ObservableList
and therefore the type of tableView.getColumns().get(c)
being Object
, which does not contain a getCellObservableValue
method.
You should add a type parameter to the declaration, even if you're using ?
to fix this issue:
TableView<Item> tableView = new TableView<>();
or
TableView<?> tableView = new TableView<>();
Note:
It's preferable not to use the raw type, if possible, since this allows the compiler to do some type checking and also you avoid having to write some casts in your code, e.g.
for(Object it : tableView.getItems()) {
Item it2 = (Item) it;
}
could simply be changed to
for(Item it2 : tableView.getItems()) {
}
Actually using the TableColumn
to retrieve the number of orders shouldn't be necessary though. You could simply retrieve it from the item itself (or the other location where this data is stored), e.g.:
Item item = tableView.getItems().get(0);
int ordered = item.getOrdered();
In your declaration of the TableView
, you're using the raw type.
This results in the type of tableView.getColumns()
being ObservableList
and therefore the type of tableView.getColumns().get(c)
being Object
, which does not contain a getCellObservableValue
method.
You should add a type parameter to the declaration, even if you're using ?
to fix this issue:
TableView<Item> tableView = new TableView<>();
or
TableView<?> tableView = new TableView<>();
Note:
It's preferable not to use the raw type, if possible, since this allows the compiler to do some type checking and also you avoid having to write some casts in your code, e.g.
for(Object it : tableView.getItems()) {
Item it2 = (Item) it;
}
could simply be changed to
for(Item it2 : tableView.getItems()) {
}
Actually using the TableColumn
to retrieve the number of orders shouldn't be necessary though. You could simply retrieve it from the item itself (or the other location where this data is stored), e.g.:
Item item = tableView.getItems().get(0);
int ordered = item.getOrdered();
edited Nov 21 '18 at 21:36
answered Nov 21 '18 at 21:26
fabianfabian
53.3k115373
53.3k115373
Hi there, so I did what you said with changing tableView to be of type Item and I can finally use getCellObservableValue with the table which is very nice. However I have run into one more issue. As you mentioned I could skip the whole process of getting the 'ordered' value from the table and use item.getOrdered(). However the items have a default value of 0 for their ordered variable. On top of this, the 4th column on the table is not tied to the Item ObservableList and updated from it. Because of this, getCellObservableValue() cannot pull the value from that cell.
– AFC
Nov 21 '18 at 23:33
I ran out of characters on the pervious comment. On top of that, if I tie the ordered column to the item observableList, then change that value by editing it, getCellObservableValue() will return 0 every time since every item defaults to 0, even after I edit the value to be any other Integer, it will return only 0. Is there a way I can return either the edited value of the # ordered while having it tied to the ObservableList or not tie it to the list and still get the value that is put in by the user. Thank you very much for the help by the way
– AFC
Nov 21 '18 at 23:36
Where do you store the data? What do you use ascellValueFactory
?
– fabian
Nov 22 '18 at 3:08
add a comment |
Hi there, so I did what you said with changing tableView to be of type Item and I can finally use getCellObservableValue with the table which is very nice. However I have run into one more issue. As you mentioned I could skip the whole process of getting the 'ordered' value from the table and use item.getOrdered(). However the items have a default value of 0 for their ordered variable. On top of this, the 4th column on the table is not tied to the Item ObservableList and updated from it. Because of this, getCellObservableValue() cannot pull the value from that cell.
– AFC
Nov 21 '18 at 23:33
I ran out of characters on the pervious comment. On top of that, if I tie the ordered column to the item observableList, then change that value by editing it, getCellObservableValue() will return 0 every time since every item defaults to 0, even after I edit the value to be any other Integer, it will return only 0. Is there a way I can return either the edited value of the # ordered while having it tied to the ObservableList or not tie it to the list and still get the value that is put in by the user. Thank you very much for the help by the way
– AFC
Nov 21 '18 at 23:36
Where do you store the data? What do you use ascellValueFactory
?
– fabian
Nov 22 '18 at 3:08
Hi there, so I did what you said with changing tableView to be of type Item and I can finally use getCellObservableValue with the table which is very nice. However I have run into one more issue. As you mentioned I could skip the whole process of getting the 'ordered' value from the table and use item.getOrdered(). However the items have a default value of 0 for their ordered variable. On top of this, the 4th column on the table is not tied to the Item ObservableList and updated from it. Because of this, getCellObservableValue() cannot pull the value from that cell.
– AFC
Nov 21 '18 at 23:33
Hi there, so I did what you said with changing tableView to be of type Item and I can finally use getCellObservableValue with the table which is very nice. However I have run into one more issue. As you mentioned I could skip the whole process of getting the 'ordered' value from the table and use item.getOrdered(). However the items have a default value of 0 for their ordered variable. On top of this, the 4th column on the table is not tied to the Item ObservableList and updated from it. Because of this, getCellObservableValue() cannot pull the value from that cell.
– AFC
Nov 21 '18 at 23:33
I ran out of characters on the pervious comment. On top of that, if I tie the ordered column to the item observableList, then change that value by editing it, getCellObservableValue() will return 0 every time since every item defaults to 0, even after I edit the value to be any other Integer, it will return only 0. Is there a way I can return either the edited value of the # ordered while having it tied to the ObservableList or not tie it to the list and still get the value that is put in by the user. Thank you very much for the help by the way
– AFC
Nov 21 '18 at 23:36
I ran out of characters on the pervious comment. On top of that, if I tie the ordered column to the item observableList, then change that value by editing it, getCellObservableValue() will return 0 every time since every item defaults to 0, even after I edit the value to be any other Integer, it will return only 0. Is there a way I can return either the edited value of the # ordered while having it tied to the ObservableList or not tie it to the list and still get the value that is put in by the user. Thank you very much for the help by the way
– AFC
Nov 21 '18 at 23:36
Where do you store the data? What do you use as
cellValueFactory
?– fabian
Nov 22 '18 at 3:08
Where do you store the data? What do you use as
cellValueFactory
?– fabian
Nov 22 '18 at 3:08
add a comment |
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Could you show the declaration of itemGUIList and the table population part?
– bakcsa83
Nov 21 '18 at 21:17
@bakcsa83
ObservableList<Item> itemGUIList =FXCollections.observableArrayList();
and the items are added to the list by the user, I have another interface where the user inputs the information for the item and then I add it to the list via the followingitemGUIList.add(newItem);
– AFC
Nov 21 '18 at 23:40