private void btn_Modify_Click(object sender, EventArgs e)
        {
            CategoryCU formCategory = new CategoryCU(GetCategoryFromSelected());
            DialogResult dr = formCategory.ShowDialog();

            if (dr == DialogResult.OK) LoadCategories();
        }
        private void btn_Add_Click(object sender, EventArgs e)
        {
            CategoryCU formCategory = new CategoryCU();
            DialogResult dr = formCategory.ShowDialog();

            if (dr == DialogResult.OK) LoadCategories();
        }
        private void btn_Modify_Click(object sender, EventArgs e)
        {
            CategoryCU   formCategory = new CategoryCU(GetCategoryFromSelected());
            DialogResult dr           = formCategory.ShowDialog();

            if (dr == DialogResult.OK)
            {
                LoadCategories();
            }
        }
        private void btn_Add_Click(object sender, EventArgs e)
        {
            CategoryCU   formCategory = new CategoryCU();
            DialogResult dr           = formCategory.ShowDialog();

            if (dr == DialogResult.OK)
            {
                LoadCategories();
            }
        }