private void tsmiDeleteProduct_Click(object sender, EventArgs e)
{
if (this.lvProducts.SelectedItems.Count > 0){
int idx = this.lvProducts.SelectedItems[0].Index;
System.Data.DataRow row = this.products.Rows[idx];
bool no_errors = true;
int cnt = 0;
try{
this.cConnection.Open();
string sQuery = "SELECT ISNULL(COUNT(*), 0) FROM Purchases.ReceiptContents WHERE ProductID = @Product";
System.Data.SqlClient.SqlCommand check_cmd = new System.Data.SqlClient.SqlCommand();
check_cmd.Parameters.AddWithValue( "@Product", row["ProductID"] );
check_cmd.Connection = this.cConnection;
check_cmd.CommandTimeout = 0;
check_cmd.CommandType = System.Data.CommandType.Text;
check_cmd.CommandText = sQuery;
cnt = (int)check_cmd.ExecuteScalar();
}catch(System.Exception ex ){
no_errors = false;
MessageBox.Show(ex.Message);
}finally{
this.cConnection.Close();
}
if (no_errors &&
(cnt > 0) &&
(MessageBox.Show("Найдены заказы (" + cnt.ToString() + "), содержащие выбранный продукт, переназначить (это действие нельзы отменить)?", "Внимание!", MessageBoxButtons.YesNo, MessageBoxIcon.Hand) == DialogResult.Yes)
){
List<Producer.Product.OrderColumn> ord = new List<Producer.Product.OrderColumn>();
ord.Add(Producer.Product.OrderColumn.ProductName);
System.Data.SqlClient.SqlCommand command = Producer.Product.Select((Guid)row["Category"], null, null, ord);
command.Connection = this.cConnection;
System.Data.SqlClient.SqlDataAdapter sda = new System.Data.SqlClient.SqlDataAdapter(command);
System.Data.DataTable tbl = new System.Data.DataTable("Products");
sda.Fill(tbl);
VisualControls.ListOptions options = new VisualControls.ListOptions(false);
VisualControls.ElementsList elist = new VisualControls.ElementsList(options, "Товары", "ProductName", "ProductID", tbl);
if (elist.ShowDialog() == DialogResult.OK){
if (elist.Selected.Length == 1){
int new_id = (int)elist.Selected[0];
string query = "UPDATE Purchases.ReceiptContents SET ProductID = @NewId WHERE ProductID = @OldId";
command = new System.Data.SqlClient.SqlCommand();
command.Connection = this.cConnection;
command.Parameters.AddWithValue("@OldId", row["ProductID"]);
command.Parameters.AddWithValue("@NewId", new_id);
command.CommandTimeout = 0;
command.CommandType = System.Data.CommandType.Text;
command.CommandText = query;
}
}
}
}
}
private void tsmiDeleteCategory_Click(object sender, EventArgs e)
{
try{
if (this.clbxTypes.SelectedItems.Count > 0){
int idx = this.clbxTypes.Items.IndexOf( this.clbxTypes.SelectedItems[0] );
System.Data.DataRow row = this.types_table.Rows[idx];
this.cConnection.Open();
string sQuery = "SELECT ISNULL(COUNT(*), 0) FROM Producer.Products WHERE Category = @Category AND Type = @Type";
System.Data.SqlClient.SqlCommand check_cmd = new System.Data.SqlClient.SqlCommand();
check_cmd.Parameters.AddWithValue("@Category", row["Category"]);
check_cmd.Parameters.AddWithValue("@Type", row["TypeId"]);
check_cmd.Connection = this.cConnection;
check_cmd.CommandTimeout = 0;
check_cmd.CommandType = System.Data.CommandType.Text;
check_cmd.CommandText = sQuery;
int cnt = (int)check_cmd.ExecuteScalar();
if (( cnt > 0 ) &&
(MessageBox.Show("Найдены товары (" + cnt.ToString() + "), содержащие выбранный продукт, переназначить (это действие нельзы отменить)?", "Внимание!", MessageBoxButtons.YesNo, MessageBoxIcon.Hand) == DialogResult.Yes)
){
System.Data.SqlClient.SqlCommand command = Producer.ProductTypes.Select((Guid)row["Category"] );
command.Connection = this.cConnection;
System.Data.SqlClient.SqlDataAdapter sda = new System.Data.SqlClient.SqlDataAdapter(command);
System.Data.DataTable tbl = new System.Data.DataTable("ProductTypes");
sda.Fill(tbl);
VisualControls.ListOptions options = new VisualControls.ListOptions(false);
VisualControls.ElementsList elist = new VisualControls.ElementsList(options, "Подкатегории", "Name", "TypeId", tbl);
if (elist.ShowDialog() == DialogResult.OK)
{
if (elist.Selected.Length == 1){
int new_id = (int)elist.Selected[0];
string query = "UPDATE Producer.Products SET Type = @NewType WHERE Category = @Category AND Type = @OldType";
command = new System.Data.SqlClient.SqlCommand();
command.Connection = this.cConnection;
command.Parameters.AddWithValue("@OldType", row["TypeId"]);
command.Parameters.AddWithValue("@NewType", new_id);
command.Parameters.AddWithValue("@Category", row["Category"]);
command.CommandTimeout = 0;
command.CommandType = System.Data.CommandType.Text;
command.CommandText = query;
}
}
}
}
}catch (System.Exception ex){
MessageBox.Show("Ошибка при удалении категории товаров:\n" + ex.Message);
}
return;
}
