private void mViewStudentBtn_Click(object sender, EventArgs e)
{
ViewBook viewBook = new ViewBook(userId);
this.Hide();
viewBook.panel1.Visible = true;
viewBook.Show();
}
private void mViewBookBtn_Click(object sender, EventArgs e)
{
ViewBook viewBook = new ViewBook(userId);
this.Hide();
viewBook.BringToFront();
//panelControl.Controls.Remove(vb);
viewBook.mAddStudentBtn.Visible = false;
viewBook.mViewStudentBtn.Visible = false;
viewBook.panel1.Visible = false;
viewBook.panel2.Visible = true;
viewBook.mUpdateDataBtn.Visible = false;
viewBook.mDeleteBtn.Visible = false;
viewBook.mClearBtn.Visible = false;
viewBook.mUpdateImageBtn.Visible = false;
viewBook.bookidTF.ReadOnly = true;
viewBook.booknameTF.ReadOnly = true;
viewBook.authornameTF.ReadOnly = true;
viewBook.quantityTF.ReadOnly = true;
viewBook.publicationyearTF.ReadOnly = true;
viewBook.SetName();
viewBook.Show();
}