Hey guys,

I am programming in Python, but I hope anybody can help. PyQt is a binding (API) and works with Qt-technology. Well, in the following code you can see that I am working with QTreeView(), wich I add to QComboBox() by using the setView()-method. That works fine. But, I also want certain columns to be hidden, by using the setColumnHidden()-method. In my case, the first (in Python language, its zero) column should be hidden and the second column (in Python language, its one) should remain visible. I tried it, but it doesn't work. Can aynbody help me? Now I can hide the QHeaderView(). Look here.

uYqtp.jpg

But somehow I don't manage to hide the first column. Whats wrong? I also tried with hideSection()-method, but it doesn't work.


Qt Code: 
  1. import sys
  2. from PyQt4.QtCore import Qt, QVariant
  5.  
  6. class MyCustomDialog(QDialog):
  7.     def __init__(self, parent=None):
  8.         QDialog.__init__(self, parent)
  9.  
  10.         self.standard_item_model = QStandardItemModel(0,2, self)
  11.         self.set_header_data(list_header_data = ["ID", "Data"])
  12.  
  13.         self.items = [
  14.             ["0", 'Cookie dough'], 
  15.             ["1", 'Hummus'], 
  16.             ["2", 'Spaghetti'], 
  17.             ["3", 'Dal makhani'], 
  18.             ["4", 'Chocolate whipped cream'] 
  19.         ]
  20.  
  21.         self.tree_view = QTreeView(self)
  22.         self.tree_view.setRootIsDecorated(False)
  23.         self.tree_view.header().hide()
  24.         #self.tree_view.header().hideSection(0)
  25.         #self.tree_view.setColumnHidden(0, True)
  26.  
  27.         self.combo_box = QComboBox(self)
  28.  
  29.         self.combo_box.setView(self.tree_view)
  30.         self.combo_box.setModel(self.standard_item_model)
  31.  
  32.         self.push_button_load = QPushButton(self)
  33.         self.push_button_load.setText("Populate in TreeView")
  34.  
  35.         self.push_button_hide_column = QPushButton(self)
  36.         self.push_button_hide_column.setText("Hide first column")
  37.  
  38.         layout = QVBoxLayout(self)
  39.         layout.addWidget(self.combo_box)
  40.         layout.addWidget(self.push_button_load)
  41.         layout.addWidget(self.push_button_hide_column)
  42.         self.setLayout(layout)
  43.  
  44.         self.selection_changed()
  45.         self.init_signal_clicked_push_button()
  46.  
  47.     def hide_column(self):
  48.         #self.tree_view.header().hide()
  49.         #self.tree_view.header().hideSection(0)
  50.         self.tree_view.setColumnHidden(0, True)
  51.  
  52.     def selection_changed(self):
  53.         self.tree_view.selectionModel().selectionChanged.connect(lambda new_index: 
  54.                     self.get_id_tree_view(new_index=new_index, tree_view_object=self.tree_view))
  55.  
  56.  
  57.     def generator_header_data(self, list_header):
  58.  
  59.         for header_data in list_header:
  60.             yield header_data
  61.  
  62.     def set_header_data(self, list_header_data=None):
  63.  
  64.         count_column = 0
  65.  
  66.         for header_data in self.generator_header_data(list_header_data):
  67.             self.standard_item_model.setHeaderData(count_column, Qt.Horizontal, header_data)
  68.  
  69.             count_column +=1
  70.  
  71.         return
  72.  
  73.     def populate_data_item(self, tuple_items):
  74.  
  75.         count_items = len(tuple_items)
  76.  
  77.         if count_items == 2:
  78.  
  79.             item_first, item_second = tuple_items
  80.  
  81.         two_columns_item = [QStandardItem(str(item_first)), QStandardItem(item_second)]
  82.  
  83.         self.standard_item_model.appendRow(two_columns_item)
  84.  
  85.         return      
  86.  
  87.     def get_id_tree_view(self, new_index=None,
  88.                          tree_view_object=None,):
  89.  
  90.         try:
  91.             if not new_index is None:
  92.  
  93.                 index = new_index.indexes()[0].data()#.toPyObject()
  94.  
  95.                 if isinstance(index, QVariant):
  96.                     print "index", index.toString()
  97.  
  98.         except IndexError as InErr:
  99.             print "InErr", InErr
  100.  
  101.     def populate(self):
  102.         for i in self.items:
  103.             self.populate_data_item(i)
  104.  
  105.  
  106.  
  107.     def init_signal_clicked_push_button(self):
  108.  
  109.         self.push_button_load.clicked.connect(self.populate)
  110.  
  111.         self.push_button_hide_column.clicked.connect(self.hide_column)
  112.  
  113.  
  114. def main():
  115.     app = QApplication(sys.argv)
  116.     window = MyCustomDialog()
  117.     window.resize(300, 50)
  118.     window.show()
  119.     sys.exit(app.exec_())
  120.  
  121. if __name__ == "__main__":
  122.     main()
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