我想要一个代码在 c 语言的列表框中插入一个复选框.在选中复选框时,列表框中的所有项目都必须被选中.
I want a code to insert a checkbox inside a listbox in c sharp. on selecting the checkbox all the items in listbox must get selected.
您可以使用 CheckListBox 显示一个列表,每个项目旁边都有一个复选框.
You can use a CheckListBox to display a list with a check box next to each item.
但是要制作一个选择列表中所有内容的复选框,它必须在列表框之外(在它的上方或下方或旁边).然后你可以使用如下代码:
But to make a single checkbox that selects everything in a list, it must be outside the list box (above or below or beside it). Then you can use code like:
public void SelectAllCheckBox_CheckedChanged(object s, EventArgs e)
{
foreach (var item in ListBox1.Items)
{
item.Selected = SelectAllCheckBox.Checked;
}
}
列表中没有任何控件具有单个复选框:例如,这就是您的意思:
There is no control that has a single check box inside a list: eg this is what you mean:
+----------------------------------------+
| [x] Select All |
| Item one |
| Item two |
| Item three |
| Item four |
| Item five |
+----------------------------------------+
相反,您必须使用两个控件:一个复选框和一个单独的列表框:
Instead you must use two controls: a checkbox and a separate list box:
[x] Select All
+----------------------------------------+
| Item one |
| Item two |
| Item three |
| Item four |
| Item five |
+----------------------------------------+
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