/*
public bool AddProduct(Product displayP)
{
SqlProduct p = new SqlProduct(displayP);
hasError = false;
SqlConnection con = new SqlConnection(conString);
SqlCommand cmd = new SqlCommand("AddProduct", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("@ModelNumber", SqlDbType.VarChar, prodStringLen);
cmd.Parameters["@ModelNumber"].Value = p.ModelNumber;
cmd.Parameters.Add("@ModelName", SqlDbType.VarChar, prodStringLen);
cmd.Parameters["@ModelName"].Value = p.ModelName;
cmd.Parameters.Add("@UnitCost", SqlDbType.Decimal);
cmd.Parameters["@UnitCost"].Value = p.UnitCost;
cmd.Parameters.Add("@Description", SqlDbType.VarChar, 200);
cmd.Parameters["@Description"].Value = p.Description;
if (p.Description==null) cmd.Parameters["@Description"].Value = DBNull.Value;
cmd.Parameters.Add("@CategoryName", SqlDbType.VarChar, prodStringLen);
cmd.Parameters["@CategoryName"].Value = p.CategoryName;
cmd.Parameters.Add("@ProductId", SqlDbType.Int, 4);
cmd.Parameters["@ProductId"].Value = p.ProductId;
cmd.Parameters["@ProductId"].Direction = ParameterDirection.Output;
try
{
con.Open();
int rows = cmd.ExecuteNonQuery(); //create the new product in DB
p.ProductId = (int)cmd.Parameters["@ProductId"].Value; //set the returned ProductId in the SqlProduct object
displayP.ProductAdded2DB(p); //update corresponding Product ProductId using SqlProduct
}
catch (SqlException ex)
{
errorMessage = "Add SQL error, " + ex.Message;
hasError = true;
}
catch (Exception ex)
{
errorMessage = "ADD error, " + ex.Message;
hasError = true;
}
finally
{
con.Close();
}
return !hasError;
} //AddProduct()
*/
public bool AddProduct(Product displayP)
{
hasError = false;
try
{
SqlProduct p = new SqlProduct(displayP);
LinqDataContext dc = new LinqDataContext();
int? newProductId = 0;
dc.AddProduct(p.CategoryName, p.ModelNumber, p.ModelName, p.UnitCost, p.Description, ref newProductId);
p.ProductId = (int)newProductId;
displayP.ProductAdded2DB(p); //update corresponding Product ProductId using SqlProduct
}
catch (Exception ex)
{
errorMessage = "Add error, " + ex.Message;
hasError = true;
}
return !hasError;
}
//check all product fields for validity
public bool ChkProductForAdd(Product p)
{
int errCnt = 0;
if (String.IsNullOrEmpty(p.ModelNumber))
{ errCnt++; ModelNumberBrush = errorBrush; }
else ModelNumberBrush = okBrush;
if (String.IsNullOrEmpty(p.ModelName))
{ errCnt++; ModelNameBrush = errorBrush; }
else ModelNameBrush = okBrush;
if (String.IsNullOrEmpty(p.CategoryName))
{ errCnt++; CategoryNameBrush = errorBrush; }
else CategoryNameBrush = okBrush;
if (!ChkUnitCost(p.UnitCost))
{ errCnt++; UnitCostBrush = errorBrush; }
if (errCnt == 0) { Status = "OK"; return true; }
else { Status = "ADD, missing or invalid fields."; return false; }
}
public void ProcessProduct(Product p)
{
if (p == null) { /*DisplayedProduct = null;*/ isSelected = false; return; }
Product temp = new Product();
temp.CopyProduct(p);
DisplayedProduct = temp;
isSelected = true;
stat.NoError();
}
private void GetProducts()
{
isSelected = false;
stat.NoError();
DisplayedProduct = new Product();
App.Messenger.NotifyColleagues("GetProducts");
}
private void ClearProductDisplay()
{
isSelected = false;
stat.NoError();
DisplayedProduct = new Product();
App.Messenger.NotifyColleagues("ProductCleared");
}
/*
private string GetStringOrNull(SqlDataReader reader, string columnName)
{
return reader.IsDBNull(reader.GetOrdinal(columnName)) ? "" : (string)reader[columnName];
}
*/
/*
private const int prodStringLen = 50;
public bool UpdateProduct(Product displayP)
{
SqlProduct p = new SqlProduct( displayP);
hasError = false;
SqlConnection con = new SqlConnection(conString);
SqlCommand cmd = new SqlCommand("UpdateProduct", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("@ProductId", SqlDbType.Int, 4);
cmd.Parameters["@ProductId"].Value = p.ProductId;
cmd.Parameters.Add("@ModelNumber", SqlDbType.VarChar, prodStringLen);
cmd.Parameters["@ModelNumber"].Value = p.ModelNumber;
cmd.Parameters.Add("@ModelName", SqlDbType.VarChar, prodStringLen);
cmd.Parameters["@ModelName"].Value = p.ModelName;
cmd.Parameters.Add("@UnitCost", SqlDbType.Decimal);
cmd.Parameters["@UnitCost"].Value = p.UnitCost;
cmd.Parameters.Add("@Description", SqlDbType.VarChar, 200);
cmd.Parameters["@Description"].Value = p.Description;
cmd.Parameters.Add("@CategoryName", SqlDbType.VarChar, prodStringLen);
cmd.Parameters["@CategoryName"].Value = p.CategoryName;
int rows = 0;
try
{
con.Open();
rows = cmd.ExecuteNonQuery();
}
catch (SqlException ex)
{
errorMessage = "Update SQL error, " + ex.Message;
hasError = true;
}
catch (Exception ex)
{
errorMessage = "Update error, " + ex.Message;
hasError = true;
}
finally
{
con.Close();
}
return (!hasError);
} //UpdateProduct()
*/
public bool UpdateProduct(Product displayP)
{
try
{
SqlProduct p = new SqlProduct(displayP);
LinqDataContext dc = new LinqDataContext();
dc.UpdateProduct(p.ProductId, p.CategoryName, p.ModelNumber, p.ModelName, p.UnitCost, p.Description);
}
catch (Exception ex)
{
errorMessage = "Update error, " + ex.Message;
hasError = true;
}
return (!hasError);
}
public void CopyProduct(Product p)
{
this._productId = p._ProductId;
this.ModelNumber = p.ModelNumber;
this.ModelName = p.ModelName;
this.UnitCost = p.UnitCost;
this.CategoryName = p.CategoryName;
this.Description = p.Description;
}
public SqlProduct(Product p)
{
ProductId = p._ProductId;
ModelNumber = p.ModelNumber;
ModelName = p.ModelName;
UnitCost = Convert.ToDecimal(p.UnitCost);
Description = p.Description;
CategoryName = p.CategoryName;
}