how to identify which form's button is clicked- still not cleared

Question

Hi I have three forms form1 form2 and form3. In form1 I have a button and datagridview. The button on clicking takes control into form3. Similarly in form2 also I have a button and a dgv. The button on click takes control to form3. Now in form3 I want to identify which forms button is pressed. I mean if I have clicked form1's button then I will access form1's dgv or if I have clicked form2's button then I will access form2's dgv. How to know which form's button I have clicked in form3? thanks

Vimal Kandasamy · Answer

Sachiyou have to pass current object of form1 or form2 to form3.Then only changes made in form3 will affect form1 & form2. like in form1 Form3 f=new Form3(form1this); f.showDialog(); and in form3 String formname; Form1 f1; public Form3(String fnameForm1 obj) { formname=fname; f1=obj; } after that access it like f1.dataGridView1.DataSource

sachi vasishta · Answer

thanks vimal. Vimal I have a small doubt In form3 if I want to access form1 or form2's dgv or other controls like form1.dataGridView1.DataSource then I have to use form1 and form2's objects right  but Iwant to know whether I have to just declare form1 and form2's object such as Form1 form1; Form2 form2; in form3 or I have to do something more to access dgv or other contols of form1 or form2 in form3. Thanks

Suchit Khanna · Answer

Sachi I think Vimal clarified it with code but If still there is some issue could you please share the code you are using may be it could give a clear picture.

Vimal Kandasamy · Answer

Sachiyou can achieve this by passing info via overloaded constructor.thats enough. I have used below code to identify which form for my applications. in form1 Form3 f=new Form3(form1); f.showDialog(); in form2 Form3 f=new Form3(form2); f.showDialog(); and in form3 String formname; public Form3(String fname) { formname=fname; } and in form3's loading event or other events just check like if(formname==form1) { //code to access form1's dgv and others } if(formname==form2) { //code to access form2's dgv and others } whenever you need just refer formname varible to identify which form's button is clicked.

sachi vasishta · Answer

suchit I know how to write overloaded constructor and also I know to set form1 and form2's button's modifer property to public but I want to know which property I have to use to know which form's button is clicked? like form1.button1.? - here I am not getting the solution

Suchit Khanna · Answer

One possible solution would be to create an overloaded constructor for Form3 and wherever you are instantiating the Form3 in your code pass the button clicked as a parameter to Form3 overloaded constructor which you could catch in the Form3 and process accordingly.