表单可以用作用户控件吗？

Question

I need to make a UserControl that can be used for multiple projects. But it needs to be a Form so the user can just add a reference to the library and call the form.

I've seen third party companies like Telerik and DevExpress use custom forms that can be added to a project.

How would I accomplish this? I've been looking through SO and various posts from Google, but have not been successful in my searches.

EDIT I was assuming it had to be a UserControl for some reason. But it doesn't. I took the suggestion of just adding a form and calling it from that namespace. Works exactly as needed. Thanks everyone.

Answer 1

Just create the form in your library, make it public, and you can call it from anywhere.

Methods to create and call form are:

YourFormClassName FormForUser = new YourFormClassName();
FormForUser.Show();
FormForUser.ShowDialog();

Answer 2

Maybe I don't understand. If I do, then it's straight forward.

1. Add a project (ProjectWithReusedForm) to your solution that contains the form to be reused.
2. Add a reference to ProjectWithReusedForm in the second project where you want to use the form
3. Add a 'using ProjectWithReusedFormNamespace' to the code where you want to use the form

You then can add the statement ReusedForm myForm = new ReusedForm();

Answer 3

Just Create form with all controls. and create empty user control

Ex:

do this code inside usercontrol constructor after initialize function

dim obja as new RegForm()
obja.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None
obja.Visible = true
obja.Dock = System.Windows.Forms.DockStyle.Full
me.Controls.Add(obja)

Answer 4

You can create BaseForm (either add it into a project directly by adding .cs file or reference something compiled - class library to example). Then just add a new form to a project

namespace MySolution
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
    }
}

and chang Form to BaseForm

    public partial class Form1 : BaseForm

Answer 5

You have to be careful here. Your tag lists winforms, so I am assuming you are using .net and UserControls. Winforms only allows a single form per page. You can add multiple UserControls to a page. If you go with the base form route, the programmer will have to add everything else to your base page. UserControls will offer a little more flexibility in that they can be added to an existing page.