/C#/Close an open form when you open it again c#

Close an open form when you open it again c#

// Look through all open forms to see if there is already a Form2 open.
// If it is, Close it. This prevents the user from (purposely) having 5 of the same forms open.
// If you try to cycle through open forms after closing one, it crashes, 
//     because it edits the list of forms while cycling through it
// This is why it is converted into a list of forms first.
foreach (Form frm in Application.OpenForms.Cast<Form>().ToList())
{
    if (frm.Name == "Form2")
    {
        frm.Close();
    }
}

Similar codes

1 vote193 views1 answer
Merge point
C#
0 vote162 views1 answer
Asp.net mvc temp data
C#
0 vote223 views1 answer
Mouse click unity raycast unity
C#Unity
5 votes180 views3 answers
C# char input
C#
1 vote173 views1 answer
Approval, rejection and pending in asp dotnet core 3.1
C#
0 vote172 views1 answer
Largest prime factor of a number
C#
0 vote175 views1 answer
C# write to output window
C#
0 vote199 views1 answer
Get random point in collider unity
C#
0 vote189 views1 answer
C# lambda join two tables
C#
1 vote187 views1 answer
How to lerp in c#
C#