A few months ago, I was asked to develop a combo box that contains a tree view inside it. Initially, I used a normal tree view control, but I soon realized that I was short of space on some of the win forms. Now, in another project, I needed to use a

ComboTree is a hybrid ComboBox with a tree control replacing the drop down ListBox. Implementing a hierarchy of choices using multiple dependant combo or list boxes can take up a lot of screen space and can be awkward to use. A dropdown tree control

.net下面编写的自定义combobox,相比.net自带的组合框,可以自定义更多的数据源,或者是树形选择,外观和颜色也可以随意更改了-Custom combobox Net written below, compared to net comes with a combo box, you can customize the data source, or tree selection, appearance and color can also freely change