I'm using C++ Builder 2010. I'm wondering, how can I get a value from ListView component? And is it possible get value only from 2-nd column(for instance).
I found a lot of information about adding values to ListView, not reading.
When you add a new item, the TListItems::Add() method returns a TListItem*. To access an existing item, you use the same TListItems to get a TListItem* for the desired item, eg:
// get the desired item by its index in the list...
TListItem *Item = ListView1->Items->Item[index];
In any given item, the 1st column is represented by the TListItem::Caption property, and subsequent columns are represented by the TListItem::SubItems property. So, just like when adding values using SubItems, you use SubItems to read the values, eg:
String value = item->SubItems->Strings[0]; // 0 = 2nd column, 1 = 3rd column, etc...
Related
I want to Remove an item from a list once chosen in the dropdown and then the next dropdown won't have that item anymore. I've already made something manually but it takes super long and is not really ideal because you would need to go down in order otherwise it gets all mixed up.
https://docs.google.com/spreadsheets/d/1o3J1ZXzxQL11pdN1FDOQZ7YXbSib6A8KwkxBzO5bSM0/edit?usp=sharing
I've made 3 tabs one where I explain what I want and the other were I made it manually so you have an idea on how it works. But remember the manually one you need to go down in order. I want for it to look at a range so it doesn't matter which dropdown I choose for it to get removed from the list.
If it isn't possible to do it by range then like the same way as manually but then in script form would be a great help as well.
Here is what I tried but I'm really new with scripting so I might not even be close:
var ss = SpreadsheetApp.getActiveSpreadsheet().getSheetByName('Dropdown');
//get's the value in range A1 ( the firstdropdown value )
var firstDrop = ss.getRange("A1").getValue();
//get's the value in range A3 ( the seconddropdown value )
var secondDrop = ss.getRange("A3").getValue();
//get the list ( I don't want to put the list in here sincec I'll be
//working with entries from google forms. so the list will be changing)
var list = ss.getRange("H1:H5").getValues();
if(firstDrop == list){
var newlist = (list-firstDrop);
}
}
This may work for you - I think it gives you the result you want, but its appearance isn't ideal. I've placed it into your sheet, in the last tab. I believe that this is the same approach as Mateo's earlier answer, but down with a formula instead of code.
=SORT(FILTER(B2:B;NOT(COUNTIF(A2:A;B2:B))))
where A is the column where you are entering data, and B has your list of valid names/words.
I use this formula to filter the list of words/names that show in each dropdown list. It starts with the original list, and excludes any that have already been selected. The data validation for your cells points to the filtered list, not the original list.
The drawback is that once you select a word/name, it is no longer eligible for the dropdown cells, so even the cell where it has already been applied shows it as an invalid entry, with a little red triangle. The benefit of a working solution may outweigh this though.
I believe it should look like this:
function availableSlots(){
var form = FormApp.openByUrl('URL_OF_YOUR_FORM'); // TODO add your form url
// need to read what slots are available
var slots = SpreadsheetApp
.getActiveSpreadsheet()
.getRange("slots!A2:C10")
.getValues(); // TODO make sure getRange matches your quota range
var choice = [];
// loop through our available slots
for (s in slots){
// test if slot still available
if (slots[s][0] != "" && slots[s][2] > 0){
choice.push(slots[s][0]); // if so we add to temp array
}
}
var formItems = form.getItems(FormApp.ItemType.LIST); // our form list items
// TODO assumption that first select list is the one you want to change
// change formItems[n] if you have more than one select list
// and we just rewrite all the options to ones that are free
formItems[0].asListItem().setChoiceValues(choice);
}
As I was not sure which dropdown menus you wanted to use I have created a sample sheet with your requirements (photo attached below). In order to reduce the list of items in function of the output of the rest of the dropdowns I have used on onEdit() trigger to check for any changes in these dropdowns and in function of these cell values remove the required items from the list.
The following piece of code has self explanatory comments that address how I have implemented this:
function onEdit(e) {
// Get sheet
var sheet = SpreadsheetApp.getActive().getSheetByName('Share your Ideas here :)');
// Get list from range. Flat will make the 2D array returned by getVaues() into a 1D array
var list = sheet.getRange("E1:E5").getValues().flat();
// Get values from the dropdowns
var a = sheet.getRange("A1");
var b = sheet.getRange("B1");
var c = sheet.getRange("C1");
// Check if any of the values in the dropdowns match the list and if so remove them from
// the list
var index = list.indexOf(a.getValue()); if(index != -1){list.splice(index,1);}
index = list.indexOf(b.getValue()); if(index != -1){list.splice(index,1);}
index = list.indexOf(c.getValue()); if(index != -1){list.splice(index,1);}
// Create the data validation rule with the filtered list
var rule = SpreadsheetApp.newDataValidation().requireValueInList(list).setAllowInvalid(false).build();
// Create/update the dropdowns with the right filtered list
a.setDataValidation(rule);
b.setDataValidation(rule);
c.setDataValidation(rule);
}
References
Data Validation
requireValueInList
I'm using a QtableView to display and edit data from a QsqlTableModel.
Everything's fine : data from a postgreSQL table is displayed, and user can edit it and save modifications.
I want to add a row when uses click on a button. I use the insertRecord method from my QslTableModel.
The row is correctly added in the QTableView.
My problem is :
I want to insert a value from a query in the first cell of this new row. (to automatically populate an unique identifier).
This is my code :
def ajoutlgn(self):
query_idNewLine = QtSql.QSqlQuery(self.db)
if query_idNewLine.exec_('SELECT sp_idsuivi+1 FROM bdsuivis.t_suivprev_tablo ORDER BY sp_idsuivi DESC LIMIT 1'):
while query_idNewLine.next():
identifiant = query_idNewLine.value(0)
#print identifiant
record = QtSql.QSqlRecord()
record.setValue(1,identifiant)
self.model.insertRecord(self.model.rowCount(), record)
The value is not inserted in the new row (but if I enter a value by hand, it works perfectly).
Nevertheless, the query is OK (as I can see with the « print identifiant » line, which returns the expected integer).
Do you see what I'm doing wrong ?
Are there other methods to insert programmatically a value in a QTableView cell?
Or do I have to use a QitemDelegate ?
Thanks for advance.
Finally I found the solution :
This line creates a record, but not a record for my QsqlTableModel
record = QtSql.QSqlRecord()
I replaced it with this one, and it works perfectly :
record = self.model.record()
I need to get the selected value in my qcombobox. It was populated from database, the QCombobox is named cbUser This is my function that populate the qcombobox:
for row in self.SELECT_USERS_ACCOUNTS():
self.cbUser.addItem(str(row[1]),int(row[0]))
The data is showed successfully in the qcombobox cbUser.
and I get a function to will get the value to the selected item:
def getValue(self):
id_us = self.cbUser.itemData(self.cbUser.currentIndex())
print(str(id_us))
The print shows and it's not the data, the correct data is an integer value for example 1 or 2 ....
Please help me, thanks in advance.
UPDATED:
The solution was to modify the first line code into getValue function (add .toPyObject()):
id_us = self.cbUser.itemData(self.cbUser.currentIndex()).toPyObject()
The solution was to modify the first line code into getValue function (add .toPyObject()):
id_us = self.cbUser.itemData(self.cbUser.currentIndex()).toPyObject()
With this I saw the value stored in the qcombobox.
I have problem getting selected rows from QTableWidget. I have table like this:
[id] [ key ]
0 test
1 pass
I want to get every row's key values. I tried QTableWidget->selectedIndexes(); but it says it's protected and I can't access that. When I tried QTableWidget->SelectionModel->selectedIndexes, I don't know how to loop through list and get the key values. Do anyone know better way how can I do it?
Regards.
I'm assuming that you set the selection behavior of your table widget to select rows.
You can always access the so-called "selection model" of any item view/widget. QTableWidget inherits from QAbstractItemView, which gives you access to this special model. This model can tell you the selected rows as a list of QModelIndex, which can then tell you the row. Once you've got them, you can access the table content, in your case the text in the column with index 1 (key column).
static const KEY_COLUMN = 1;
QList<QString> selectedKeys;
QItemSelectionModel *selectionModel = ui->tableWidget->selectionModel();
foreach(QModelIndex index, selectionModel->selectedRows())
selectedIDs << ui->tableWidget->item(index->row(), KEY_COLUMN)->text();
Because you are using QTableWidget, you probably want to be calling selectedItems(). Your results will be based on what you have set the selection behavior to, via setSelectionBehavior()
When you have a list of items, you can specifically get the second column item (if it wasn't selected already):
QTableWigetItem *keyItem = table->item(anItem->row(), 1);
QString val = keyItem->text();
I've searched a lot about the way of getting inedx of selected item of combobox inside datagridview but i have not found it !!
I can get the value of selected item by :
dataGridView1[j,i]->FormattedValue
But i can't get the index !
i've tried to cast DataGridView to DataGridViewComboBoxCell to use (SelectedIndex) property
DataGridViewComboBoxCell ^ t = dynamic_cast<DataGridViewComboBoxCell ^>(dataGridView1[j,i])
but there isn't any propery shown for "t" !
The DataGridViewComboBoxCell does not track the selected index.
You could play with its editing control, DataGridViewComboBoxEditingControl, to get the inner ComboBox, but it will be clumsy.
The simplest thing you can do is to lookup via IndexOf the cell Value in the collection of all possible values you use to initialize the DataGridViewComboBoxColumn.