private void Svm_MainForm_Load(object sender, EventArgs e)
{
Form_Onduty form = new Form_Onduty();
form.TopLevel = false;
form.Parent = this.TagContent;
this.TagContent.Controls.Add(form);
this.TagContent.Controls.SetChildIndex(form, 0);
form.Dock = DockStyle.Fill;
form.Show();
Lform = form;
}
private void btn_Onduty_Click(object sender, EventArgs e)
{
if (Lform != null)
{
Lform.Close();
}
Form_Onduty form = new Form_Onduty();
form.TopLevel = false;
form.Parent = this.TagContent;
this.TagContent.Controls.Add(form);
this.TagContent.Controls.SetChildIndex(form, 0);
form.Dock = DockStyle.Fill;
form.Show();
Lform = form;
}