Control a Form from another Hidden Form in C#

Question

I am working on a client that is sending a request to the server to login and if it's accepted the main window shall be hidden and user will start work on the form 2 named user_form ... and there are 3 buttons available for the users on the user_form ( logout - exit - hide )

I want control them all from the main window which is already hidden ,,,

Here is the code I am working with in main form ... but it's not working as I want.

switch (client.LoginInfo.Limited)
{
    case true:
        this.Hide();
        User_Form LF = new User_Form(client);
        LF.AdminControlIsVisible = false;
        DialogResult dr = LF.ShowDialog(this);
        if (dr == System.Windows.Forms.DialogResult.Cancel)
        {
            //logout
        }
        else if (dr == System.Windows.Forms.DialogResult.OK)
        {
            if (client != null)
            {
                //hide
            }
            else
            {
                UpdateSystemMessage("No response from the server !!");
            }
            return;
        }
        break;
    case false:
        User_Form LF = new User_Form(client);
        LF.AdminControlIsVisible = false;
        DialogResult dr = LF.ShowDialog(this);
        this.Visible = false;
        if (dr == System.Windows.Forms.DialogResult.Cancel)
        {
            //logout
        }
        else if (dr == System.Windows.Forms.DialogResult.OK)
        {
            if (client != null)
            {
                //hide
            }
            else
            {
                UpdateSystemMessage("No response from the server !!");
            }
            return;
        }
        break;
}

Any solution ?

Answer 1

I fixed it by adding a new thread to run the .net sockets in instead of the main thread .