在自定义下拉列表中添加默认值 [英] Add default value in a custom drop down list

问题描述

我想向自定义下拉列表中添加默认值，但该值不应出现在列表中.仅当我不选择任何内容时，它才应出现在该控件中.

I want to add a default value to my custom drop down list, but this value should NOT appear in my list.It should only appear in that control when i dont select anything.

推荐答案

为什么不将空的listitem添加到默认选择的ddl中

why don''t you add an empty listitem to the ddl selected by default

ddl.Items.Insert(0, "");
ddl.ClearSelection();
ddl.SelectedIndex = 0;

听起来很奇怪，没有选择.

我知道它确实出现在ddl中.
但这似乎更标准"

sounds weird a dropdown with no selection.

i know that it does appear in the ddl.
but that seems more "standard"

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