PyGTK TreeView 显示 ListStore 中的空白行

发布于 2024-11-16 07:42:58 字数 1439 浏览 10 评论 0原文

我试图在 TreeView 中显示数据库中的几行,但我得到的只是一些虚拟行,如下图所示。

Application Screenshot

class SettingsDialog(gtk.Dialog):
    def __init__(self):
        gtk.Dialog.__init__(self, "Server Settings", self, gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT)

        # Instantiate ServerManager
        self.server_manager = ServerManager()

        # Create TreeStore for Server list
        self.liststore = gtk.ListStore(str, str)
        self.treeview = gtk.TreeView(self.liststore)

        # Create TreeViewColumns to display data
        cell = gtk.CellRendererText()
        col = gtk.TreeViewColumn("Name")
        col.pack_start(cell, True)
        self.treeview.append_column(col)

        cell = gtk.CellRendererText()
        col = gtk.TreeViewColumn("URL")
        col.pack_start(cell, True)
        self.treeview.append_column(col)

        self.vbox.pack_start(self.treeview)

        self.resize(500,350)
        self.set_position(gtk.WIN_POS_CENTER)
        self.show_all()

        self.load_server_list()


    def load_server_list(self):
        self.liststore.clear()
        servers = self.server_manager.list()
        for name, url in servers.iteritems():
                self.liststore.append([name, url])
        self.show_all()

self.server_manager.list() 返回的数据有效并已添加到列表中完美保存。 CellRenderers 似乎有问题,但我无法找到错误。

I'm trying to show several rows from database in a TreeView but all I am getting are some dummy rows as you can see in the image below.

Application Screenshot

class SettingsDialog(gtk.Dialog):
    def __init__(self):
        gtk.Dialog.__init__(self, "Server Settings", self, gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT)

        # Instantiate ServerManager
        self.server_manager = ServerManager()

        # Create TreeStore for Server list
        self.liststore = gtk.ListStore(str, str)
        self.treeview = gtk.TreeView(self.liststore)

        # Create TreeViewColumns to display data
        cell = gtk.CellRendererText()
        col = gtk.TreeViewColumn("Name")
        col.pack_start(cell, True)
        self.treeview.append_column(col)

        cell = gtk.CellRendererText()
        col = gtk.TreeViewColumn("URL")
        col.pack_start(cell, True)
        self.treeview.append_column(col)

        self.vbox.pack_start(self.treeview)

        self.resize(500,350)
        self.set_position(gtk.WIN_POS_CENTER)
        self.show_all()

        self.load_server_list()


    def load_server_list(self):
        self.liststore.clear()
        servers = self.server_manager.list()
        for name, url in servers.iteritems():
                self.liststore.append([name, url])
        self.show_all()

Data returned from self.server_manager.list() is valid an added to the list store perfectly. There seems to be something wrong with the CellRenderers but I wasn't able to find the error.

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十年九夏 2024-11-23 07:42:58

您必须在列上设置属性映射。例如,cellrenderer 的 text 属性值将显示在树形视图单元中。它取自数据模型 (self.liststore) 上的值。从中获取值的模型上的列号在属性映射中指定。

## Take value for *text* attribute of the cell renderer from the model's 3rd column
col = gtk.TreeViewColumn(title, cellrenderer, text=2)

You have to set an attribute mapping on the column. For example, the cellrenderer's text attribute value will be displayed in the treeview cell. It is taken from the values on the data model (self.liststore). The column number on the model where the value is taken from is specified in the attribute mapping.

## Take value for *text* attribute of the cell renderer from the model's 3rd column
col = gtk.TreeViewColumn(title, cellrenderer, text=2)
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