How can i create a textField and dropdown like HTMLElement using theia

I am trying to create a inputField with the help of the class ‘SingleTextInputDialog’ present in ‘@theia/core/lib/browser’.But i can not access the inputField instance.How can i create a new InputField.

[original thread by SOWMITHRACHINNADURAI]

Hi, why do you want to access it?

It should be used like here:

It can be extended like here: