Out of multiple forms open, I want to know which form is active?

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There is a search functionality(SearchForm) where i will search the keyword in data present in forms(Let's say Form1, Form2, Form3). There are multiple forms which are open at same time. When I click on particular form(Suppose Form1) and then search for keyword, then it should search in that active form(Form1). Now, if I click on another form(Form2), then it becomes my active form. So now when I search for keyword, it should search through that particular form(Form1). Right now, if I select Form2, still it searches for keyword in Form1. How do I achieve this?

What I have tried:

I have tried Focus but I am not aware how to get the active form instance so my search functionality works on active form(which i have clicked to make it current form).

Posted 7-Feb-19 22:56pm

Member 14117093

Updated 7-Feb-19 23:01pm

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CPallini · Accepted Answer · 2019-02-07T23:02:00

Solution 1

What about the documentation: Form.ActiveForm Property (System.Windows.Forms) | Microsoft Docs[^]?

Posted 7-Feb-19 23:02pm

CPallini

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Member 14117093 8-Feb-19 5:04am

But there are multiple forms, i cannot check each and every form as i do not know number of forms that are open at a time. I need the active one. Is there any way we can get it?

RickZeeland 8-Feb-19 5:20am

Form currentForm = Form.ActiveForm;

CPallini 8-Feb-19 6:13am

I suggest you to read again, paying more attention, the linked documentation.

Member 14117093 8-Feb-19 6:54am

Thanks...
Actually the active forms were MdiChild so had to use Form actForms = this.ActiveForm.ActiveMdiChild.
This worked!!!

CPallini 8-Feb-19 15:49pm

You are welcome. Glad it eventually worked.