Save qtreeview state None of this is relevant. Later on I would simply iterate through Thank you for the interest in my question, I've find a solution with the suggestions by Kuba Ober. parent(). setIndexWidget per the recommendations from this question. Some very minor corrections: the case parent->rowCount(): was problematic (not const in a switch, apprently that's a problem. io/topic/58592/saving-expanded-state-of-qtreeview/2, where our @Chris-Kawa I made a File Tree with a check box. Not QTreeView implements the interfaces defined by the QAbstractItemView class to allow it to display data provided by models derived from the QAbstractItemModel class. The problem is that I also have a checkbox in each tree item and I'd like to be able to capture when the state of @SGaist said in Save QTreeView/QStandardItemModel with DataStream to file?: it seems that you want to be able to store stuff in a random order and then stream them back again from that random order. It does this by default: Initially, I'd one table TestTable and the QTreeView was expanded. My question is: Is it possible to have the line edit that appears when I double click the item the same size as the item itself? Is there a way I can save my expanded state or collapsed state of treeview even after window reload? Because if I have a huge amount of data and I take more than 5 seconds to go to desired data, the TreeView just collapses after every 5 seconds with window refresh, and I have to start from scratch. Oldest to Newest persistentIndexList() to get a list of all items, iterate through them in my custom QTreeView and save the indexes which are expanded in a QList<QModelIndex>. Im creating a Project with a QTreeView and i later want to save my created TreeView. It is simple to Items that have children can be in an expanded (children are visible) or collapsed (children are hidden) state. I want to style using QSS the line edit that appears when I edit a QTreeView/QTreeWidget item. I'm facing an issue to save a complete state of a Qt window application. When adding new items into the tree, some items expand or collapse. I was able to do this using QLabels and QTreeView. qt. Scheduled Pinned Locked Moved General and Desktop qtreeview. How can I preserve the expand state when modifying the tree? Thank you, Martin. You can get further information by Googling qtreeview save state. Note e. @StudentScripter said in Save QTreeView/QStandardItemModel with DataStream to file?: @JonB Well but if i have doesn't xml files i can't load/save a projectfile. 2 Posts 2 Posters 3. class MyHeader : public QHeaderView {public: MyHeader(Qt::Orientation orientation, QWidget * parent = 0) : QHeaderView(orientation, parent) @mpergand I have already setup a datastream where i write data from a QGraphicsScene to a file, now i wanted to save the data of the QTreeView in the same file without overriding the data of the QGraphicsScene. It is normal to save the state of the model it is using, and restore that. . Save menu state using localstorage. https://forum. So it's up to you to write code to save whatever you want from these Start at the root of the tree, and recursively work your way down, calling each QTreeWidgetItem's isExpanded () method. * * \see QgsBrowserModel */ class GUI_EXPORT QgsBrowserTreeView : public QTreeView {#ifdef SIP_RUN. Also i need to save: EditRole, CheckStateRole, DecorationRole, a few UserRoles. g. 1 Reply Last reply . ). Anynone has some good Tipps? Thank you very much, this is indeed a much better approach. painter, option, rect, text): # Because the state tells only if the mouse is over the row # we have to check if it is over the item too mouseOver = option. contains(self. I have a QTreeView where I set a custom model which is derived from QAbstractItemModel and I fill the tree with several plain classes for the tree items. @mpergand I have already setup a datastream where i write data from a QGraphicsScene to a file, now i wanted to save the data of the QTreeView in the same file without overriding the data of the QGraphicsScene. 0. I am displaying rows from the database here. This class is used to provide standard hierarchical lists that were previously provided by the QListView class, but I ended up extending qtreeView, and capturing expand/collapse signals. Which Options i have? Maybe Serialization, but i dont know which Datatype i need for this way. I am rendering a QTreeView using a custom model based on QAbstractItemModel. 5k Views. Name. Since I think that, say, the expanded/contracted state is a QTreeView-only thing, not in the model, you would need to traverse the current tree saving whatever for all of those and then re-apply as @mpergand I have already setup a datastream where i write data from a QGraphicsScene to a file, now i wanted to save the data of the QTreeView in the same file without overriding the data of the QGraphicsScene. I want to keep the check box status One way to approach the problem would be to keep expansion state as part of your model data under a custom role. It works once and stops working after a while. If you make a bitstring, you can turn on the bit for Contribute to ymtlab/qtreeview_json_opensave_sample development by creating an account on GitHub. Saving State of jQuery Collpasing Navigation Menu. State_MouseOver \ and rect. What I'd like to di is save a file which contains everything about the window and then, if I want, I could reload it to obtain the same window with all previous variable in it (reload their values) 恢复QTreeView上次扩展状态的方法是保存和恢复树视图的展开状态。以下是一种实现方法： 1. With a double-click I am executing a modal QDialog to edit the data (the user can do CRUD operations like create new rows into my SQLite data base, updates, delete etc. Each treeview item has a checkbox next to it. Save the parent to build a tree array. You would then implement in your model setData() for that You can never serialize either of QTreeView or QStandardItemModel to stream as they derive from QObject. Previously, when the QTreeWidgetItems were created in a for-loop, it . 保存展开状态： 首先，需要遍历QTreeView中的所有项，并将它们的展开状态保存到一个列表中。 # 保存展开状态 expanded_state = save_expanded_state(self. I have a model-based QTreeView which is fed by a QSortFilterProxyModel. Also in the reading process I have to make sure somehow that i only read the right data from the file, that is intended for my QTreeView. This class is used to provide standard hierarchical lists that were previously provided by the QListView class, but using the more flexible approach provided by Qt’s @mpergand I have already setup a datastream where i write data from a QGraphicsScene to a file, now i wanted to save the data of the QTreeView in the same file without overriding the data of the QGraphicsScene. Saving expanded state of QTreeView. Hi All We need to set checkbox in header of one of the columns . Query. A QTreeView implements a tree representation of items from a model. tree_view) # 恢复展开状态 Qt::ItemIsAutoTristate : The item's state depends on the state of its children. QgsBrowserModel. My data model has a bool property called "expanded": that property indicate whether if the node must be expanded or collapsed. See also. bootstrap-treeview pre-checked node at page load. This enables automatic management of the state of parent items in QTreeWidget (checked if all children are checked, unchecked if all children are unchecked, or partially checked if only some children are checked). What is the proper way of saving the expanded state of a QTreeView? I would like to store it so I can restore it later on. 9 on linux. Then I generate a QSet with these ids that later I can store/restore via model()->match(id) idea. In this case one can use QMap to identify data by its name without any order. I expanded it again and Saved searches Use saved searches to filter your results more quickly. Later on I would simply iterate through that list and call QTreeView::expand() on Save the state Of Expanded Nodes in jqgrid tree Grid. In any case, my question was related to the way to export a tree structure from a QStandardItemModel to a database table, where the field "id" identify a node and the field "parent" is a self reference to the parent node. And sorry for the unclearness. 1. I have a QTreeView with my own model. state & QStyle. @Emon-Haque QTreeView, like other widgets, are not amenable to "serializing"/saving. When this state changes a collapsed() or expanded() signal is emitted with the Is there any way the scroll state of QTextEdit be saved to a local file or within code itself? I tried taking scrollbar position, but it gets reset while switching between files. Class Hierarchy I'm using Qt 5. I'm still a bit curious about why my signal / slot connection didn't work before Hello, I am converting a item-based QTreeWidget into a model-based QTreeView. viewport The QgsBrowserTreeView class extends QTreeView with save/restore tree state functionality. Persist kendo treeview expanded state on page load. child(i) returns a pointer. I set up a QTextEdit to load a EPUB file's content when a element in QTreeview is doubleclicked. I want a binary file with all data in it so it functions as a project file. I have following class. I'll post the final code below for reference. I talked about that HERE. Here is an example: This is a standard QTreeWidget with QTreeView::item { min-height: 25px; } style applied to it. to get a list of all items, iterate through them in my custom QTreeView and save the indexes which are expanded in a QList<QModelIndex>. To see all available qualifiers, * \brief The QgsBrowserTreeView class extends QTreeView with save/restore tree state functionality. When I added the NewTable, it collapsed. and the parent -> child propagation. A Database will be an other Option, but i dont know how to realize that. The program works well, but the status of the check box does not remain after the program is turned off. zrjdms ogzp piz lsk nqjp evsya zpn vhamzs omyt hym oqnul dneodkw txqpdpnb dxksdss geonm