How to close current form in C# and open the second form as modal dial

Denis Morgan

I have a scenario in c# where I open first form dialog log call it form one. Form one has a button which should open Form two. My issue is upon clicking button in form one I want to close form one and show form two as modal dialog and form two shows and still form one is not closed. Here is sample code I have tried which is not working

private void button1_Click(object sender, EventArgs e)
{
Form frm=null;
if (radioone.Checked == true)
{
frm=new frmPayByCash(this);
}
else if (radiotwo.Checked == true)
{
frm = new frmTwo(this);
}
else
{
frm = new frmOne(this);
}
if (frm != null)
{
this.Hide();
frm.Closed += (s, args) => this.Close(); //have tried this but its closing both forms at ago
frm.Show();
}
}

5 Replies

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Amit Gupta6y ago
Can you share some screenshots of it and how you expect the output to be.
Denis Morgan6y ago
@Amit Gupta Have tried that but its still leaving the main window
Amit Gupta6y ago
To make the parent window to behave like modal use this keyword form2.ShowDialog(this)
Denis Morgan6y ago
@Amit Gupta your solution works but makes the second dialog to minimize the main form and show as a separate form I mean it does on appear on top of the mdi window
Amit Gupta6y ago
Try like below void showForm(Form form2) { this.Visible=false;();//or use this.Hide(); this.ShowInTaskbar = false; form2.SgowDialog(); this.ShowInTaskbar =true; this.Visible=true; }