private void BtnAddToDataGridView_Click(object sender, EventArgs e)
{
_productList.Add(new Product(Guid.Parse(TbxId.Text), TbxName.Text, double.Parse(TbxPrice.Text), TbxCountry.Text, double.Parse(TbxSale.Text)));
DgridProducts.Rows.Add(DgridProducts.RowCount + 1, TbxId.Text, TbxName.Text, TbxPrice.Text, TbxCountry.Text, TbxSale.Text);
TbxId.Clear();
TbxName.Clear();
TbxPrice.Clear();
TbxCountry.Clear();
TbxSale.Clear();
}
private void BtnNew_Click(object sender, EventArgs e)
{
TbxID.Clear();
TbxName.Clear();
TbxVorname.Clear();
TbxStrasse.Clear();
TbxPLZ.Clear();
TbxOrt.Clear();
TbxTelefon.Clear();
TbxName.Focus();
}