blocks|key|3188281|text|可能还有一种更简单的替代方法，但您可以使用ListView，将CheckBoxes设置为true，将HeaderStyle设置为None，将View设置为List。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3188282|更正：|3188283|应该已将View设置为Details。|3188284|entityMap^0|L|8|V|A|18|4|1E|B|1S|4|1Y|4|25|4|0|0|4|4|B|7|0^^$0|@$1|2|3|4|5|6|7|L|8|@$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]|$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|10|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|11|8|@$9|12|A|13|B|C]|$9|14|A|15|B|C]]|D|@]|E|$]]|$1|J|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|K|$]]

There might be an easier alternative, but you could use a <code>ListView</code>, set <code>CheckBoxes</code> to <code>true</code>, <code>HeaderStyle</code> to <code>None</code>, and <code>View</code> to <code>List</code>.

Correction:

Should have been set <code>View</code> to <code>Details</code>.

blocks|key|3188314|text|看起来CheckedListBox控件不支持多选(请参见MSDN)。它支持选中多个复选框，但不支持一次选中(突出显示)多个项目。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3188315|我同意另一个答案，即ListView可能是同时获得复选框和多选的最好方法。|3188316|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.windows.forms.checkedlistbox.selectionmode.aspx^0|3|E|S|4|0|0|A|8|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

It looks like multiple selection is not supported for the <code>CheckedListBox</code> control (See <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.checkedlistbox.selectionmode.aspx" rel="nofollow">MSDN</a>). It does support multiple checkboxes being checked, but not multiple items being selected (highlighted) at once. 

I agree with the other answer that a <code>ListView</code> is probably the best way to get both checkboxes and multiple selection.

blocks|key|1856673|text|似乎无法在CheckedListBox.SelectionMode+Property中设置请参阅备注部分|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1856674|要获得一个更简单的替代方法，请遵循adrift。|1856675|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.windows.forms.checkedlistbox.selectionmode.aspx^0|5|11|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

It appears that it it not possible to set see the remarks section in <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.checkedlistbox.selectionmode.aspx" rel="nofollow">CheckedListBox.SelectionMode Property</a> 

For an easier alternative follow the adivice of adrift.

blocks|key|1859884|text|对于今天的多重检查，我想出了这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1859885|++++List<int>+listBox2_selectionhistory+=+new+List<int>();

++++private+void+checkedListBox2_SelectedIndexChanged(object+sender,+EventArgs+e)
++++{
++++++++int+actualcount+=+listBox2_selectionhistory.Count;
++++++++if+(actualcount+==+1)
++++++++{
++++++++++++if+(Control.ModifierKeys+==+Keys.Shift)
++++++++++++{
++++++++++++++++int+lastindex+=+listBox2_selectionhistory[0];
++++++++++++++++int+currentindex+=+checkedListBox2.SelectedIndex;
++++++++++++++++int+upper+=+Math.Max(lastindex,+currentindex)+;
++++++++++++++++int+lower+=+Math.Min(lastindex,+currentindex);
++++++++++++++++for+(int+i+=+lower;+i+<+upper;+i%2B%2B)
++++++++++++++++{
++++++++++++++++++++checkedListBox2.SetItemCheckState(i,+CheckState.Checked);
++++++++++++++++}
++++++++++++}
++++++++++++listBox2_selectionhistory.Clear();
++++++++++++listBox2_selectionhistory.Add(checkedListBox2.SelectedIndex);
++++++++}
++++++++else
++++++++{
++++++++++++listBox2_selectionhistory.Clear();
++++++++++++listBox2_selectionhistory.Add(checkedListBox2.SelectedIndex);
++++++++}
++++}|code-block|syntax|javascript|1859886|据我所知，checkedlistboxes的SelectionMode只能是1或none，这意味着你永远不能让应用一次选择超过1个(我也使用这个行为来简化我的checkedlistboxes代码)|1859887|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|$]]

for the multichecks i came up with this today:

<pre><code> List&lt;int&gt; listBox2_selectionhistory = new List&lt;int&gt;();

 private void checkedListBox2_SelectedIndexChanged(object sender, EventArgs e)
 {
 int actualcount = listBox2_selectionhistory.Count;
 if (actualcount == 1)
 {
 if (Control.ModifierKeys == Keys.Shift)
 {
 int lastindex = listBox2_selectionhistory[0];
 int currentindex = checkedListBox2.SelectedIndex;
 int upper = Math.Max(lastindex, currentindex) ;
 int lower = Math.Min(lastindex, currentindex);
 for (int i = lower; i &lt; upper; i++)
 {
 checkedListBox2.SetItemCheckState(i, CheckState.Checked);
 }
 }
 listBox2_selectionhistory.Clear();
 listBox2_selectionhistory.Add(checkedListBox2.SelectedIndex);
 }
 else
 {
 listBox2_selectionhistory.Clear();
 listBox2_selectionhistory.Add(checkedListBox2.SelectedIndex);
 }
 }
</code></pre>

as far as i know checkedlistboxes' SelectionMode can only be either one or none which means you can never make the app select more than 1 at a time (I also used this behavior to simplify my code for checkedlistboxes)

blocks|key|1114049|text|不支持多选，但我是通过搜索找到CheckedItems的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1114050|选中项是指已标记的项，选中项是指已选中的项。|1114051|因此，如果希望项具有选中的复选框，请使用.CheckedItems属性而不是.SelectedItems。|offset|length|style|BOLD|1114052|entityMap^0|0|0|L|C|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@$F|O|G|P|H|I]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

Multiple selection is not supported, but i got here by search to find the CheckedItems.

The selected items refers to the items that are marked, the checked items refers to the items that are checked.

Hence use .CheckedItems property instead of .SelectedItems if you want the items with a checked checkbox.

blocks|key|3188436|text|请按照以下步骤操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3188437|3188438|选择CheckOnClick+=true。|unordered-list-item|offset|length|style|CODE|3188439|当您要检索选定项时，请改用GetItemChecked(int+index)方法。|3188440|3188441|entityMap^0|0|0|2|C|0|D|P|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|P|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|Q|8|@$F|R|G|S|H|I]]|9|@]|A|$]]|$1|J|3|K|5|E|7|T|8|@$F|U|G|V|H|I]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|N|$]]

Please follow these steps:

<ul>
<li>Select <code>CheckOnClick</code> = true.</li>
<li>When you want to retrieve selected item, use <code>GetItemChecked(int index)</code> method instead.</li>
</ul>

blocks|key|4598892|text|​|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4598893|📷|atomic|offset|length|4598894|4598895|+private+System.Windows.Forms.CheckedListBox+LBO1;

+string+mySentLst+=+string.Join(";",+LBO1.CheckedItems.Cast<string>());|code-block|syntax|javascript|4598896|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/33c179a4ff41f9eb010e003a15a3892f.jpeg|imageAlt^0|0|0|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|W|8|@]|9|@$E|X|F|Y|1|Z]]|A|$]]|$1|G|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|11|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T|U|-4]]]]

<a href="https://i.stack.imgur.com/nl9oN.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nl9oN.jpg" alt="CheckedListBox"></a>

<pre><code> private System.Windows.Forms.CheckedListBox LBO1;

 string mySentLst = string.Join(";", LBO1.CheckedItems.Cast&lt;string&gt;());
</code></pre>

Say that I have a CheckedListBox with items "1", "2", "3", "4", and "5" in that order and I want to select "2", "3", and "4" by selecting "2" then holding shift and selecting "4". Is there any built-in way to achieve this with the CheckedListBox control? I found an article on how to use the SelectedIndexChanged event to get close to this behavior, but though it checks multiple items, it does not show them as selected. 

<a href="http://www.windowsdevelop.com/windows-forms-general/multiple-selection-checkbox-53049.shtml" rel="noreferrer">http://www.windowsdevelop.com/windows-forms-general/multiple-selection-checkbox-53049.shtml</a>

If there is an alternative control that I could use then I would be up for that as well.

How do I allow the user to multi-check with the CheckedListBox through the 'shift' key?

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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假设我有一个按"1“、"2”、"3“、"4”和"5“顺序排列的CheckedListBox，我想通过选择"2”然后按住shift键并选择"4“来选择"2”、"3“和"4”。有没有什么内置的方法可以通过CheckedListBox控件来实现这一点？我发现了一篇关于如何使用SelectedIndexChanged事件来接近...

问如何允许用户通过“shift”键与CheckedListBox进行多次检查？
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问如何允许用户通过“shift”键与CheckedListBox进行多次检查？EN