private void btnAdd_Click(object sender, EventArgs e)
{
int id = 1;
string name = string.Empty;
double price = 0;
int proQuantity = 0;
if (dtProduct.Rows.Count > 0)
{
id = int.Parse(dtProduct.Compute("MAX(ProductID)", "").ToString()) + 1;
}
Product pro = new Product
{
ProductID = id,
ProductName = name,
UnitPrice = price,
ProductQuantity = proQuantity
};
searchFrm productDetails = new searchFrm(true, pro);
DialogResult r = productDetails.ShowDialog();
if (r == DialogResult.OK)
{
pro = productDetails.ProductAddorEdit;
dtProduct.Rows.Add(pro.ProductID, pro.ProductName, pro.UnitPrice, pro.ProductQuantity);
}
loadData();
}
private void btnUpdate_Click(object sender, EventArgs e)
{
int id = int.Parse(txtProductID.Text);
string name = txtProductName.Text;
double price = double.Parse(txtPrice.Text);
int quantity = int.Parse(txtQuantity.Text);
Product pro = new Product
{
ProductID = id,
ProductName = name,
UnitPrice = price,
ProductQuantity = quantity
};
searchFrm productDetails = new searchFrm(false, pro);
DialogResult r = productDetails.ShowDialog();
if (r == DialogResult.OK)
{
DataRow row = dtProduct.Rows.Find(pro.ProductID);
row["ProductName"] = pro.ProductName;
row["UnitPrice"] = pro.UnitPrice;
row["Quantity"] = pro.ProductQuantity;
}
loadData();
}
private void btnSearch_Click(object sender, EventArgs e)
{
try
{
int id = 0;
if (!int.TryParse(txtSearch.Text, out id))
{
MessageBox.Show("ID must be in number type.");
return;
}
Product pro = data.findProductbyID(id);
if (pro == null || string.IsNullOrEmpty(pro.ToString()))
{
MessageBox.Show("Can not found product.");
}
else
{
searchFrm productDetails = new searchFrm(false, pro);
DialogResult r = productDetails.ShowDialog();
if (r == DialogResult.OK)
{
DataRow row = dtProduct.Rows.Find(pro.ProductID);
row["ProductName"] = pro.ProductName;
row["UnitPrice"] = pro.UnitPrice;
row["Quantity"] = pro.ProductQuantity;
}
}
}
catch (NullReferenceException)
{
MessageBox.Show("Can not found this product.");
}
}