如何禁用一个的CheckedListBox一个复选框？ [英] How to disable a checkbox in a checkedlistbox?

问题描述

我有一个检查列表框中的一些项目，我想禁用它第一个项目的复选框。结果
即我想在的CheckedListBox禁用的第一个项目，是因为我想告诉用户视觉上的选项不可用。

I have some items in a checked list box, I want to disable the checkbox of first item in it.
i.e. I want to disable the first item in the CheckedListBox, because I want to tell the user visually that option is not available.

推荐答案

综合以上部分答案2为我工作很好。
添加您的物品清单与

Combining 2 of the above partial answers worked great for me. Add your items to the list with:

myCheckedListBox.Items.Add(myItem, myState);

在哪里myState是CheckState.Indeterminate对于应禁用物品。
然后添加事件处理程序，以保持这些项目被更改：

Where myState is CheckState.Indeterminate for items that should be disabled. Then add an event handler to keep those items from being changed:

myCheckedListBox.ItemCheck += (s, e) => { if (e.CurrentValue == CheckState.Indeterminate) e.NewValue = CheckState.Indeterminate; };

这不允许使用'不确定'在此列表中其正常目的，但它确实给一个看起来非常相似，什么人会期​​望一个禁用的项目，它提供了正确的行为！

This does not allow you to use 'Indeterminate' in this list for its normal purpose but it does give a look very similar to what one would expect for a disabled item and it provides the correct behavior!

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