Two Forms and Controls Interaction

Question

On the Form1 I have two buttons.
Both buttons load Form2, but:
- when loaded by the btn1, dgv(on the Form2) should have ds1 as DataSource.
- when loaded by the btn2, dgv(on the Form2) should have ds2 as DataSource.

Also - Fom2_Closing Event should run this:
Form1.Text = "323";
Form1.btn1.Visible = false;

Problem in my tryings is properly establishing the relations between forms..
Could somebody help, please?

Frogleg · Answer

Look here

Frogleg · Answer

And another way

Vulpes · Answer

In Form2 add some private fields and change the constructor as follows: class Form2 : Form { private Form1 f1; private DataSet ds; public Form2( Form1 f1 DataSet ds ) { InitializeComponent(); this.f1 = f1; this.ds = ds; dgv.DataSource = ds; } // other methods private void Form1_FormClosing(object sender FormClosingEventArgs e) { f1.Text = 323; f1.Controls[btn1].Visible = false; f1.f2 = null; } } Now from Form1: // add this field internal Form2 f2; private void btn1_Click(object sender EventArgs e) { if (f2 == null) { f2 = new Form2(this ds1); f2.Show(); } } private void btn2_Click(object sender EventArgs e) { if (f2 == null) { f2 = new Form2(this ds2); f2.Show(); } }

Memento · Answer

//pass string to method - you said ! Frog Is it the truth that the same brain invented the Chess and C# ? ThanksMan !

Memento · Answer

This site is a real treasure. Huge difference comparing to other helping pages. One day I hope I could give you money instead clicking on (is there maybe a maximum clicks without breaking some rule?) Is there a rellevant place where I could write my impressions (site's founder or similar)? Both solutions are so different and both - Works. Just a question to Frog: How about if I instead: Form1.Text = 323; want: Form1.Text = Form2.dgv2.CurrentCell.Value.ToString(); I probably need to declare somewhere this string as public and tried on both forms but got error - Index is out of Range....