Databases
StackOverflow2013
Postsdbo
POselected item of comboBox in custom Delegate from QTableView
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POselected item of comboBox in custom Delegate from QTableView
    primarykey
    data
    text
    <p>I use a custom delegate to display a column of comboBoxes in my QTableView. The values are the same for all the comboBoxes so it's not really the population part that gives me trouble. </p> <p>I want them to show as the selected item, some value that I can retrieve from a database. I have access to the database from the delegate, but in order to send my request, I need the row of the comboBox.</p> <p>So I guess my question is : how can you iterate over all the rows of the table and do some action from inside the custom delegate ?</p> <p>If it can help here is my custom delegate class :</p> <pre><code>class ComboBoxDelegate(QtGui.QItemDelegate): def __init__(self, parent, itemslist): QtGui.QItemDelegate.__init__(self, parent) self.itemslist = itemslist self.parent = parent def paint(self, painter, option, index): # Get Item Data value = index.data(QtCore.Qt.DisplayRole).toInt()[0] # value = self.itemslist[index.data(QtCore.Qt.DisplayRole).toInt()[0]] # fill style options with item data style = QtGui.QApplication.style() opt = QtGui.QStyleOptionComboBox() opt.currentText = str(self.itemslist[value]) opt.rect = option.rect # draw item data as ComboBox style.drawComplexControl(QtGui.QStyle.CC_ComboBox, opt, painter) self.parent.openPersistentEditor(index) def createEditor(self, parent, option, index): ##get the "check" value of the row # for row in range(self.parent.model.rowCount(self.parent)): # print row self.editor = QtGui.QComboBox(parent) self.editor.addItems(self.itemslist) self.editor.setCurrentIndex(0) self.editor.installEventFilter(self) self.connect(self.editor, QtCore.SIGNAL("currentIndexChanged(int)"), self.editorChanged) return self.editor # def setEditorData(self, editor, index): # value = index.data(QtCore.Qt.DisplayRole).toInt()[0] # editor.setCurrentIndex(value) def setEditorData(self, editor, index): text = self.itemslist[index.data(QtCore.Qt.DisplayRole).toInt()[0]] pos = self.editor.findText(text) if pos == -1: pos = 0 self.editor.setCurrentIndex(pos) def setModelData(self,editor,model,index): value = self.editor.currentIndex() model.setData(index, QtCore.QVariant(value)) def updateEditorGeometry(self, editor, option, index): self.editor.setGeometry(option.rect) def editorChanged(self, index): check = self.editor.itemText(index) id_seq = self.parent.selectedIndexes[0][0] update.updateCheckSeq(self.parent.db, id_seq, check) </code></pre> <p>And I call it fromthe QTableView like this : </p> <pre><code>self.setEditTriggers(QtGui.QAbstractItemView.CurrentChanged) self.viewport().installEventFilter(self) self.setItemDelegateForColumn(13,ComboBoxDelegate(self, self.checkValues)) </code></pre> <p>Hope I was clear enough, thanks for your attention</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USJohanna
    plurals
    1. This table or related slice is empty.
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POselected item of comboBox in custom Delegate from QTableView
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload