private async void button5_Click(object sender, EventArgs e)
{
DBhardwaredatabase db = new DBhardwaredatabase();
IQueryable <Harddata> list = db.Hdata;// select a;
List <Harddata> endlist;
if (comboBox1.Text.Length > 0)
{
var t1 = comboBox1.Text;
list = from a in list where a.Type == comboBox1.Text select a;
}
if (comboBox2.Text.Length > 0)
{
var t2 = comboBox2.Text;
list = from a in list where a.Type == comboBox2.Text select a;
}
if (textBox1.Text.Length > 0)
{
list = from a in list where a.Productname == textBox1.Text select a;
}
/*else {
* list = from a in db.Hdata select a;
* }
*/
listView1.Items.Clear();
endlist = await list.ToListAsync();
foreach (var i in endlist)
{
System.Windows.Forms.ListViewItem listViewItem1 = new System.Windows.Forms.ListViewItem(new string[]
{
i.Productname,
i.Brand,
i.Type,
i.Price,
i.Stars
}, -1);
listViewItem1.Tag = i.id;
listView1.Items.Add(listViewItem1);
}
}
private async void listView1_SelectedIndexChanged(object sender, EventArgs e)
{
DBhardwaredatabase db = new DBhardwaredatabase();
if (listView1.SelectedItems.Count == 0)
{
return;
}
var item = listView1.SelectedItems[0];
int Id = (int)item.Tag;
var Imgquery =
from Harddata in db.Hdata
where Harddata.id == Id
select Harddata.Image;
try
{
label2.Visible = false;
var Img = await Imgquery.FirstOrDefaultAsync();
String path = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) + @"\Hardware_Database";
pictureBox1.Image = Image.FromFile(path + @"\" + Img.ToString());
}
catch
{
label2.Visible = true;
}
var descrqr =
from Harddata in db.Hdata
where Harddata.id == Id
select Harddata.Description;
var descr = await descrqr.FirstOrDefaultAsync();
textBox4.Text = descr;
}
private async void button3_Click(object sender, EventArgs e)
{
try
{
DBhardwaredatabase db = new DBhardwaredatabase();
if (listView1.SelectedItems.Count == 0)
{
return;
}
var item = listView1.SelectedItems[0];
int id = (int)item.Tag;
var todelete =
from Harddata in db.Hdata
where Harddata.id == id
select Harddata;
var itemtodelete = await todelete.FirstOrDefaultAsync();
if (itemtodelete == null)
{
return;
}
db.Hdata.Remove(itemtodelete);
await db.SaveChangesAsync();
listView1.Items.Remove(item);
}
catch
{
label3.Visible = true;
}
}
private async void Form2_Load(object sender, EventArgs e)
{
DBhardwaredatabase db = new DBhardwaredatabase();
var list = await db.Hdata.ToListAsync();
foreach (var i in list)
{
System.Windows.Forms.ListViewItem listViewItem1 = new System.Windows.Forms.ListViewItem(new string[]
{
i.Productname,
i.Brand,
i.Type,
i.Price,
i.Stars
}, -1);
listViewItem1.Tag = i.id;
listView1.Items.Add(listViewItem1);
}
}
private void button4_Click(object sender, EventArgs e)
{
listView1.Items.Clear();
DBhardwaredatabase db = new DBhardwaredatabase();
var list = db.Hdata.ToList();
foreach (var i in list)
{
System.Windows.Forms.ListViewItem listViewItem1 = new System.Windows.Forms.ListViewItem(new string[]
{
i.Productname,
i.Brand,
i.Type,
i.Price,
i.Stars
}, -1);
listViewItem1.Tag = i.id;
listView1.Items.Add(listViewItem1);
}
}
private async void button1_Click(object sender, EventArgs e)
{
try {
label6.Visible = label7.Visible = label8.Visible = label9.Visible = label10.Visible = label13.Visible = label15.Visible = false;
string text1 = textBox1.Text;
string text2 = textBox2.Text;
string text3 = textBox3.Text;
string text4 = textBox4.Text;
if (string.IsNullOrWhiteSpace(text1))
{
//If no product name
label6.Visible = true;
}
if (comboBox1.SelectedIndex == -1)
{
//If no type
label7.Visible = true;
}
if (comboBox2.SelectedIndex == -1)
{
//If no brand
label8.Visible = true;
}
if (string.IsNullOrWhiteSpace(text2))
{
//If no price
label9.Visible = true;
}
if (string.IsNullOrWhiteSpace(text3))
{
//If no image
label10.Visible = true;
}
if (string.IsNullOrWhiteSpace(text4))
{
//If no discription
label13.Visible = true;
}
if (comboBox3.SelectedIndex == -1)
{
//If no rate
label15.Visible = true;
}
else
{
DBhardwaredatabase db = new DBhardwaredatabase();
Harddata h = new Harddata();
h.Productname = textBox1.Text;
h.Type = comboBox1.SelectedItem.ToString();
h.Brand = comboBox2.SelectedItem.ToString();
h.Price = textBox2.Text;
h.Image = textBox3.Text;
h.Stars = comboBox3.SelectedItem.ToString();
h.Description = textBox4.Text;
db.Hdata.Add(h);
await db.SaveChangesAsync();
Close();
//Clear text boxes, reset to a new state
textBox1.Clear();
textBox2.Clear();
textBox3.Clear();
comboBox1.SelectedIndex = -1;
comboBox2.SelectedIndex = -1;
}
}
catch
{
label16.Visible = true;
}
}
