blocks|key|415254|text|我非常确定你可以把任何你想要的东西放到ListBox中。因此，您可以只制作自己的控件，该控件有一个标签和两个箭头按钮。然后将其抛入ListBox并附加事件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|415255|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I am pretty sure you can throw whatever you want into the ListBox. So you could just make your own control that has a label and two buttons for the arrows. Then throw it in the ListBox and attach the events.

blocks|key|3421344|text|我会做一个up按钮，在它的OnClick事件中，做一些类似的事情：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3421345|int+location+=+listItems.SelectedIndex;
if+(location+>+0)
{
++++object+rememberMe+=+listItems.SelectedItem;
++++listItems.Items.RemoveAt(location);
++++listItems.Items.Insert(location+-+1,+rememberMe);
++++listItems.SelectedIndex+=+location+-+1;
}|code-block|syntax|javascript|3421346|请记住，这还没有经过测试，因为我现在还没有打开visual+studio，但它应该会给你一个好的想法。|3421347|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I would make a button that is an up button, and in its OnClick event, do something like:

<pre><code>int location = listItems.SelectedIndex;
if (location &gt; 0)
{
 object rememberMe = listItems.SelectedItem;
 listItems.Items.RemoveAt(location);
 listItems.Items.Insert(location - 1, rememberMe);
 listItems.SelectedIndex = location - 1;
}
</code></pre>

Keep in mind this isn't tested as I don't have visual studio open right now, but it should give you a good idea.

blocks|key|3421374|text|我会在模型中包括项目的顺序(即。您的数据类)。然后，我将ListBox绑定到一个按该值排序的CollectionView。然后，您的向上/向下按钮将在您的两个数据项中简单地交换此排序属性的值。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3421375|entityMap^0|1A|E|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

I would include the order of the item in the model (ie. your data class). Then I'd bind the ListBox to a <code>CollectionView</code> that is sorted by that value. Your up/down buttons would then simply swap the value of this sort property in two of your data items.

blocks|key|2325315|text|你要绑定它吗？尝试更改绑定对象项的顺序并更新列表框。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2325316|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Are you binding it? Try to change the order of the item of the binding object and upadate the listbox.

blocks|key|3421434|text|将ObservableCollection用作ListBox的集合|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3421435|ObservableCollection有一个很棒的Move方法，它可以激发所有好的事件，让你的列表框做出响应……|offset|length|3421436|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/ms654933.aspx^0|0|Q|4|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

Use an ObservableCollection as a collection for your ListBox

ObservableCollection has a nifty <a href="http://msdn.microsoft.com/en-us/library/ms654933.aspx" rel="nofollow noreferrer">Move</a> method which fires all the nice events goodness for your listbox to respond...

blocks|key|3421472|text|向上移动|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3421473|int+index+=+listbox.SelectedIndex;
if+(index+!=+-1)
{
++++if+(index+>+0)
++++{
++++++++ListBoxItem+lbi+=+(ListBoxItem)listbox.Items[index];
++++++++listbox.Items.RemoveAt(index);
++++++++index--;
++++++++listbox.Items.Insert(index,+lbi);
++++++++listbox.SelectedIndex+=+index;
++++++++listbox.ScrollIntoView(lbi);
++++}
}|code-block|syntax|javascript|3421474|下移|3421475|int+index+=+listbox.SelectedIndex;
if+(index+!=+-1)
{
++++if+(index+<+listbox.Items.Count+-+1)
++++{
++++++++listboxlbi+=+(ListBoxItem)listbox.Items[index];
++++++++listbox.Items.RemoveAt(index);
++++++++index%2B%2B;
++++++++listbox.Items.Insert(index,+lbi);
++++++++listbox.SelectedIndex+=+index;
++++++++listbox.ScrollIntoView(lbi);
++++}
}|3421476|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Move Up

<pre><code>int index = listbox.SelectedIndex;
if (index != -1)
{
 if (index &gt; 0)
 {
 ListBoxItem lbi = (ListBoxItem)listbox.Items[index];
 listbox.Items.RemoveAt(index);
 index--;
 listbox.Items.Insert(index, lbi);
 listbox.SelectedIndex = index;
 listbox.ScrollIntoView(lbi);
 }
}
</code></pre>

Move Down

<pre><code>int index = listbox.SelectedIndex;
if (index != -1)
{
 if (index &lt; listbox.Items.Count - 1)
 {
 listboxlbi = (ListBoxItem)listbox.Items[index];
 listbox.Items.RemoveAt(index);
 index++;
 listbox.Items.Insert(index, lbi);
 listbox.SelectedIndex = index;
 listbox.ScrollIntoView(lbi);
 }
}
</code></pre>

blocks|key|3421487|text|如果您正在绑定它：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3421488|private+void+MoveItemUp()
++++{
++++++++if+(SelectedGroupField+!=+null)
++++++++{
++++++++++++List<string>+tempList+=+AvailableGroupField;
++++++++++++string+selectedItem+=+SelectedGroupField;

++++++++++++int+currentIndex+=+tempList.IndexOf(selectedItem);

++++++++++++if+(currentIndex+>+0)
++++++++++++{
++++++++++++++++tempList.Remove(selectedItem);
++++++++++++++++tempList.Insert(currentIndex+-+1,+selectedItem);
++++++++++++++++AvailableGroupField+=+null;
++++++++++++++++AvailableGroupField+=+tempList;
++++++++++++++++SelectedGroupField+=+AvailableGroupField.Single(p+=>+p+==+selectedItem);
++++++++++++}
++++++++}
++++}

++++private+void+MoveItemDown()
++++{
++++++++if+(SelectedGroupField+!=+null)
++++++++{
++++++++++++List<string>+tempList+=+AvailableGroupField;
++++++++++++string+selectedItem+=+SelectedGroupField;

++++++++++++int+currentIndex+=+tempList.IndexOf(selectedItem);

++++++++++++if+(currentIndex+<+(tempList.Count+-+1))
++++++++++++{
++++++++++++++++tempList.Remove(selectedItem);
++++++++++++++++tempList.Insert(currentIndex+%2B+1,+selectedItem);
++++++++++++++++AvailableGroupField+=+null;
++++++++++++++++AvailableGroupField+=+tempList;
++++++++++++++++SelectedGroupField+=+AvailableGroupField.Single(p+=>+p+==+selectedItem);
++++++++++++}
++++++++}++++++++
++++}|code-block|syntax|javascript|3421489|我没有解释如何将命令绑定到方法，假设您已经弄清楚了这一点。|3421490|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

If you are binding it:

<pre><code>private void MoveItemUp()
 {
 if (SelectedGroupField != null)
 {
 List&lt;string&gt; tempList = AvailableGroupField;
 string selectedItem = SelectedGroupField;

 int currentIndex = tempList.IndexOf(selectedItem);

 if (currentIndex &gt; 0)
 {
 tempList.Remove(selectedItem);
 tempList.Insert(currentIndex - 1, selectedItem);
 AvailableGroupField = null;
 AvailableGroupField = tempList;
 SelectedGroupField = AvailableGroupField.Single(p =&gt; p == selectedItem);
 }
 }
 }

 private void MoveItemDown()
 {
 if (SelectedGroupField != null)
 {
 List&lt;string&gt; tempList = AvailableGroupField;
 string selectedItem = SelectedGroupField;

 int currentIndex = tempList.IndexOf(selectedItem);

 if (currentIndex &lt; (tempList.Count - 1))
 {
 tempList.Remove(selectedItem);
 tempList.Insert(currentIndex + 1, selectedItem);
 AvailableGroupField = null;
 AvailableGroupField = tempList;
 SelectedGroupField = AvailableGroupField.Single(p =&gt; p == selectedItem);
 }
 } 
 }
</code></pre>

I have not explained how to bind the command to a method assuming you would have already figured that out.

This is related to my last post.

i want to have up and down buttons on listbox items
so that they can moved up/down ie changed its index
in the list. 

Any ideas how I would actualy do this?

Malcolm

WPF - Implementing a listbox that allows the items to be moved up and down

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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这与我上一篇文章有关。我想在列表框项目上有向上和向下按钮，这样他们就可以向上/向下移动，即改变了它在列表中的索引。你知道我该怎么做吗？马尔科姆

问WPF -实现允许项目上下移动的列表框
EN

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问WPF -实现允许项目上下移动的列表框EN