private void baruBtn_Click(object sender, EventArgs e)
 {
     Modul_Data_Customer customer = new Modul_Data_Customer(this);
     customer.Show();
     this.Enabled = false;
 }
 private void linkLbl_Customer_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
 {
     Modul_Data_Customer customer = new Modul_Data_Customer(this);
     customer.Show();
     disable_Main_Form();
 }
 private void btn_data_customer_Click(object sender, EventArgs e)
 {
     Modul_Data_Customer customer = new Modul_Data_Customer(this);
     customer.Show();
     disable_Main_Form();
 }
 private void dataToolStripMenuItem_Click(object sender, EventArgs e)
 {
     Modul_Data_Customer customer = new Modul_Data_Customer(this);
     customer.Show();
     disable_Main_Form();
 }