blocks|key|1291564|text|扩大搜索范围后，我找到了一个与ruby相关的答案。因为这个问题是与gtk相关的，所以它应该能够用任何这样的语言来解决：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1291565|您将更改的小部件(在我的例子中是treeview+)与gtk.widget的'size-allocate‘信号连接起来，并将gtk.scrolledwindow值设置为“gtk.scrolledwindow-+page_size”。示例：|offset|length|style|CODE|1291566|self.treeview.connect('size-allocate',+self.treeview_changed)|code-block|syntax|javascript|1291567|..。|1291568|def+treeview_changed(self,+widget,+event,+data=None):
++++adj+=+self.scrolled_window.get_vadjustment()
++++adj.set_value(+adj.upper+-+adj.page_size+)|1291569|链接到ruby-forum.com上的原始帖子：|1291570|hint+hint|1291571|entityMap|0|LINK|mutability|MUTABLE|url|http://www.ruby-forum.com/topic/119851^0|0|R|A|1Q|I|2D|I|0|0|0|0|0|0|9|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@$D|14|E|15|F|G]|$D|16|E|17|F|G]|$D|18|E|19|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|1A|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1B|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|1C|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|1D|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1E|8|@]|9|@$D|1F|E|1G|1|1H]]|A|$]]|$1|U|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11]]]]

After widening my search-radius, i found a ruby-related answer. since the problem is gtk-related, it should be able to be solved in any language like this:

you connect the widget which changes, in my case the treeview, with <code>gtk.widget</code>'s 'size-allocate' signal and set the <code>gtk.scrolledwindow</code> value to "upper - page_size". example:

<pre><code>self.treeview.connect('size-allocate', self.treeview_changed)
</code></pre>

...

<pre><code>def treeview_changed(self, widget, event, data=None):
 adj = self.scrolled_window.get_vadjustment()
 adj.set_value( adj.upper - adj.page_size )
</code></pre>

link to the original post at ruby-forum.com:

<a href="http://www.ruby-forum.com/topic/119851" rel="noreferrer">hint hint</a>

blocks|key|1291593|text|fookatchu的答案可以改进，这样回调就可以被多个小部件使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1291594|def+treeview_changed(+self,+widget,+event,+data=None+):
++++adj+=+widget.get_vadjustment()
++++adj.set_value(+adj.upper+-+adj.pagesize+)|code-block|syntax|javascript|1291595|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

fookatchu's answer can be improved so that the callback could be used by multiple widgets:

<pre><code>def treeview_changed( self, widget, event, data=None ):
 adj = widget.get_vadjustment()
 adj.set_value( adj.upper - adj.pagesize )
</code></pre>

blocks|key|1998886|text|Python+Gtk+3版本：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1998887|adj.set_value(adj.get_upper()+-+adj.get_page_size())|offset|length|style|CODE|1998888|entityMap^0|0|0|1G|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

Python Gtk 3 version:

<code>adj.set_value(adj.get_upper() - adj.get_page_size())</code>

blocks|key|3358535|text|仍然需要回调(我使用的是textView而不是treeView)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3358536|textView+=+Gtk.TextView()
scrolledWindow+=+Gtk.ScrolledWindow()

def+textViewChanged(+self,+widget+):
++++adjustment+=+scrolledWindow.get_vadjustment()
++++adjustment.set_value(+adjustment.get_upper()+-+adjustment.get_page_size()+)

textView.connect(+"size-allocate",+textViewChanged+)|code-block|syntax|javascript|3358537|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Still need the callback (I used a textView rather than treeView):

<pre><code>textView = Gtk.TextView()
scrolledWindow = Gtk.ScrolledWindow()

def textViewChanged( self, widget ):
 adjustment = scrolledWindow.get_vadjustment()
 adjustment.set_value( adjustment.get_upper() - adjustment.get_page_size() )

textView.connect( "size-allocate", textViewChanged )
</code></pre>

blocks|key|4958828|text|公认的答案帮助我在gtk-rs中找到了自动滚动到内容结尾问题的Rust解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4958829|下面是一个可能对其他人有帮助的Rust代码片段：|4958830|//+Imports+used+for+reference
use+gtk::{TextBuffer,+TextView,+TextBufferBuilder,+ScrolledWindow,+ScrolledWindowBuilder};

//+The+text+buffer+where+the+text+is+appended+later
let+text_buffer:+TextBuffer+=+TextBufferBuilder::new().build();

//+The+containing+text+view+that+holds+the+text+buffer
let+text_view:+TextView+=+TextView::new_with_buffer(&text_buffer);

//+The+scrolled+window+container+with+fixed+height/width+that+holds+the+text+view
let+scrolled_window:+ScrolledWindow+=+ScrolledWindowBuilder::new()
++++++++.min_content_height(400)
++++++++.min_content_width(600)
++++++++.child(&text_view)
++++++++.build();

//+Have+the+text+view+connect+to+signal+"size-allocate"
text_view.connect_size_allocate(clone!(@weak+scrolled_window+=>+move+%7C_,_%7C+{
+++let+adj+=+scrolled_window.get_vadjustment().unwrap();
+++adj.set_value(adj.get_upper()+-+adj.get_page_size());
}));

//+...
//+Later+on,+fill+buffer+with+some+text.
text_buffer.insert(&mut+text_buffer.get_end_iter(),+"This+is+my+text+I'm+adding");|code-block|syntax|javascript|4958831|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

The accepted answer has helped me figure out a Rust solution in gtk-rs to the auto-scroll to end of content issue.
Here's a Rust snippet that might help others:
<pre class="lang-rust prettyprint-override"><code>// Imports used for reference
use gtk::{TextBuffer, TextView, TextBufferBuilder, ScrolledWindow, ScrolledWindowBuilder};

// The text buffer where the text is appended later
let text_buffer: TextBuffer = TextBufferBuilder::new().build();

// The containing text view that holds the text buffer
let text_view: TextView = TextView::new_with_buffer(&amp;text_buffer);

// The scrolled window container with fixed height/width that holds the text view
let scrolled_window: ScrolledWindow = ScrolledWindowBuilder::new()
 .min_content_height(400)
 .min_content_width(600)
 .child(&amp;text_view)
 .build();

// Have the text view connect to signal &quot;size-allocate&quot;
text_view.connect_size_allocate(clone!(@weak scrolled_window =&gt; move |_,_| {
 let adj = scrolled_window.get_vadjustment().unwrap();
 adj.set_value(adj.get_upper() - adj.get_page_size());
}));

// ...
// Later on, fill buffer with some text.
text_buffer.insert(&amp;mut text_buffer.get_end_iter(), &quot;This is my text I'm adding&quot;);
</code></pre>

blocks|key|1291742|text|建议的解决方案对我来说都不起作用，但我能够获得所需的行为(使用Go的GTk4绑定)：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1291743|adj+:=+scrolledWindow.VAdjustment()
adj.SetUpper(adj.Upper()+%2B+adj.PageSize())
adj.SetValue(adj.Upper())|code-block|syntax|javascript|1291744|其他解决方案将滚动窗口(我的包含一个列表框)向下移动到倒数第二项，但不显示最后一项。它的行为方式让我认为上限需要增加，所以我尝试通过页面大小增加它，然后将滚动值设置为新的上限。|1291745|entityMap^0|Y|4|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

None of the suggested solutions worked for me, but I was able to get the desired behavior doing this (using GTk4 bindings for Go):
<pre class="lang-golang prettyprint-override"><code>adj := scrolledWindow.VAdjustment()
adj.SetUpper(adj.Upper() + adj.PageSize())
adj.SetValue(adj.Upper())
</code></pre>
The other solutions would move the scrolled window (mine contained a list box) down to the 2nd-to-last item, but not show the last item. The way it was acting made me think that the upper limit needed to be increased, so I tried increasing it by page-size then setting the scroll value to the new upper limit.

I have a treeview-widget inside a <code>ScrolledWindow</code>, which is populated during runtime. I want the <code>ScrolledWindow</code> to auto-scroll to the end of the list. I "solved" the problem, by adjusting the <code>vadjustment</code> of the <code>ScrolledWindow</code>, everytime a row is inserted into the treeview. e.g:

<pre><code>if new_line_in_row:
 adj = self.scrolled_window.get_vadjustment()
 adj.set_value( adj.upper - adj.page_size )
</code></pre>

If i run the code in an interactive ipython session and set the value by myself, everything works as expected.

If i run the code with the default python interpreter, the auto-scroll doesn't work all the time. I debugged the code and the problem seems be, that the adjustment values have some kind of "lag" and are only changed after some period of time.

My question is: how do I scroll, reliably, to maximum position of the <code>ScrolledWindow</code>? is a special signal generated which i can use? or is there a better way to set the <code>adjustment-value</code>?

How to auto-scroll a gtk.scrolledwindow?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我在ScrolledWindow中有一个treeview-widget，它是在运行时填充的。我想让ScrolledWindow自动滚动到列表的末尾。我通过调整ScrolledWindow的vadjustment，每次在树视图中插入一行，“解决”了这个问题。例如：if new_line_in_row:   adj = s...

问如何自动滚动gtk.scrolledwindow？
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问如何自动滚动gtk.scrolledwindow？EN