Adding some functions to a custom combobox

Job ID: 34644281

Budget: $10 – $30 USD

I have a current project (called WindowsApp1Test) in which there is a custom combobox in VB.NET, framework v4.8.1. The custom combobox currently shows a richtextbox when the combobox dropdown menu is opened.

I want to add two functions to the CustomComboBox.vb control:

1. After I type in some text, for example "abc", into the combobox, and then open the combobox dropdown menu by clicking on the down arrow, "abc" should then appear in the richtextbox. (Please see the attached picture). Likewise, when I type "abcd" in the richtextbox, and then close the dropdown menu, the combobox should show "abcd"

2. In addition, there should be a button, that when clicked, opens the combobox menu. There should also be a button to close the combobox menu.

The project should be completed in VB.NET, framework v4.8.1, and have no warnings or issues. These two functions should be placed inside the CustomComboBox.vb file directly.
Related categories: Visual Basic .NET VB.NET