private void button2_Click(object sender, EventArgs e)
{
if (listView1.SelectedItems.Count > 0)
{
using (ProductListEntities db = new ProductListEntities())
{
int id = (int)listView1.SelectedItems[0].Tag;
var result = from a in db.Attributes
where a.IdAttribute == id
select a;
foreach (var item in result)
{
db.Attributes.Remove(item);
}
db.SaveChanges();
listView1.Items.Clear();
int index = 0;
var list = db.Attributes.ToList();
foreach (var element in list)
{
listView1.Items.Add(new ListViewItem(element.Name));
listView1.Items[index++].Tag = element.IdAttribute;
}
}
}
}
private void button1_Click(object sender, EventArgs e)
{
Form5 form5 = new Form5(ref listView1);
form5.ShowDialog();
using (ProductListEntities db = new ProductListEntities())
{
foreach (var item in listView1.Items)
{
Set set = new Set();
set.IdProduct = Convert.ToInt32(str[3]);
set.IdAttribute = (int)((ListViewItem)item).Tag;
set.Value = "";
db.Set.Add(set);
}
db.SaveChanges();
}
}
private void button3_Click(object sender, EventArgs e)
{
if (listView1.SelectedItems.Count > 0)
{
listView1.SelectedItems[0].SubItems[1].Text = textBox4.Text;
using (ProductListEntities db = new ProductListEntities())
{
int idProd = Convert.ToInt32(str[3]);
int idAttrib = (int)listView1.SelectedItems[0].Tag;
var result = from s in db.Set
join a in db.Attributes on s.IdAttribute equals a.IdAttribute
join p in db.Product on s.IdProduct equals p.IdProduct
where s.IdProduct == idProd && s.IdAttribute == idAttrib
select s;
foreach (var item in result)
{
item.Value = textBox4.Text;
}
db.SaveChanges();
}
}
}
private void ListView1_MouseDoubleClick(object sender, MouseEventArgs e)
{
DialogResult result;
string[] str = new string[4];
using (ProductListEntities db = new ProductListEntities())
{
var product = db.Product.Find(listView1.SelectedItems[0].Tag);
str[0] = product.Name;
str[1] = product.Price.ToString();
str[2] = product.Manufacturer.Name.ToString();
str[3] = ((int)listView1.SelectedItems[0].Tag).ToString();
}
Form2 form2 = new Form2(str);
result = form2.ShowDialog();
if (result == DialogResult.OK)
{
using (ProductListEntities db = new ProductListEntities())
{
var product = db.Product.Find(listView1.SelectedItems[0].Tag);
product.Name = str[0];
product.Price = Convert.ToInt32(str[1]);
product.Manufacturer.Name = str[2];
db.SaveChanges();
listView1.Items.Clear();
int index = 0;
var list = db.Product.ToList();
foreach (var element in list)
{
listView1.Items.Add(new ListViewItem(element.Name));
listView1.Items[index].Tag = element.IdProduct;
listView1.Items[index++].SubItems.Add(element.Price.ToString());
}
}
}
}
private void button1_Click(object sender, EventArgs e)
{
if (textBox1.Text != null && textBox1.Text != "")
{
using (ProductListEntities db = new ProductListEntities())
{
var result = from c in db.Attributes
where c.Name == textBox1.Text
select c;
if (result.Count() > 0)
{
MessageBox.Show($"Атрибут с названием {textBox1.Text} существует", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
listView1.Items.Add(new ListViewItem(textBox1.Text));
Attributes attribute = new Attributes();
attribute.Name = textBox1.Text;
db.Attributes.Add(attribute);
db.SaveChanges();
}
}
}
}
private void ListView1_MouseDoubleClick(object sender, MouseEventArgs e)
{
string str = listView1.SelectedItems[0].Text;
DialogResult result;
Form4 form4 = new Form4(ref str);
result = form4.ShowDialog();
if (result == DialogResult.OK)
{
listView1.SelectedItems[0].Text = str;
int id = (int)listView1.SelectedItems[0].Tag;
using (ProductListEntities db = new ProductListEntities())
{
var result2 = from a in db.Attributes
where a.IdAttribute == id
select a;
foreach (var item in result2)
{
item.Name = str;
}
db.SaveChanges();
}
}
}