C # Listview

Private void simplebutton#click (object sender, EventArgs e)

{// Declaration

String goods_id = comboBox1.Text;

String sales_price = textBox1.Text;

String amount = textBox2.Text;

String fact_money = textBox1.Text;

// Judge

If (goods_id = "")

{

MessageBox. Show ("the product name cannot be blank .");

Return;

}

If (sales_price = "")

{

MessageBox. Show ("the unit price cannot be blank .");

Return;

} If (amount = "")

{

MessageBox. Show ("Quantity cannot be blank .");

Return;

}

// Declare an array

String [] strArriy = new string [4];

StrArriy [0] = goods_id;

StrArriy [1] = sales_price;

StrArriy [2] = amount;

StrArriy [3] = sales_price;

If (CheckInlistView (strArriy [0], strArriy [2])

{// Check the Array

ListViewItem li = new ListViewItem (strArriy [0]);

Li. SubItems. Add (strArriy [1]);

Li. SubItems. Add (strArriy [2]);

Li. SubItems. Add (strArriy [3]);

ListView1.Items. Add (li );

Return;

}

For (int I = 0; I <listView1.Items. Count; I ++)

{// Add the same number of Goods_name values.

If (listView1.Items [I]. Text = comboBox1.Text)

{

Int preNum = Convert. ToInt32 (listView1.Items [I]. SubItems [2]. Text );

Int num = Convert. ToInt32 (this. textBox2.Text );

String Money = Convert. ToDouble (listView1.Items [I]. SubItems [3]. Text). ToString ();

ListView1.Items [I]. SubItems [2]. Text = (preNum + num). ToString ();

ListView1.Items [I]. SubItems [3]. Text = (preNum + num + Money). ToString ();

String. Format ("{0}", I + 1 );

}

}

}

Private bool CheckInlistView (string goods, string amount)

{

Bool fal = true;

For (int I = 0; I <listView1.Items. Count; I ++)

{

If (listView1.Items [I]. SubItems [0]. Text = goods & listView1.Items [I]. SubItems [2]. Text = amount)

{

Fal = false;

Break;

}

If (listView1.Items [I]. SubItems [0]. Text = goods)

{

Fal = false;

Break;

}

}

Return fal;

}

Private void simpleButton2_Click (object sender, EventArgs e)

{

SqlConnection myConn = new SqlConnection (str );

MyConn. Open ();

SqlDataAdapter myd = new SqlDataAdapter ("delete form T_Base_GoodsInfo WHERE '" + Ro + "'", myConn );

Dataeew ();

}

Int Ro =-1;

Private void dataeew ()

{

Ro = listView1.Columns. Count;

}

}

}