コード例 #1
0
ファイル: MainForm.cs プロジェクト: sakpung/webstudy
        /*
         * Modifys a record from the database and its corresponding ListViewItem
         */
        private void btnEditRecord_Click(object sender, EventArgs e)
        {
            if (lstDatabase.SelectedItems.Count > 0)
            {
                MwlItemDialog itemDlg = new MwlItemDialog(false);
                if (itemDlg.ShowDialog(this) == DialogResult.OK)
                {
                    try
                    {
                        // Update the item in the database
                        SQLiteConnection SqlConn = new SQLiteConnection();
                        SqlConn.ConnectionString = String.Format("Data Source={0};New=False;Version=3", m_strDBFileName);
                        SqlConn.Open();

                        SQLiteCommand cmd = SqlConn.CreateCommand();
                        cmd.CommandText = itemDlg.m_strSqlQuery;
                        cmd.ExecuteNonQuery();

                        SqlConn.Close();

                        // Update the ListViewItem
                        lstDatabase.Items[lstDatabase.SelectedIndices[0]] = new ListViewItem(itemDlg.m_strItemValues);
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show("Error modifying record in database:\r\n\r\n" + ex.ToString());
                    }
                }
            }
            else
            {
                MessageBox.Show("Please select an item to edit");
            }
        }
コード例 #2
0
ファイル: MainForm.cs プロジェクト: sakpung/webstudy
        /*
         * Adds a record to the database and its corresponding ListViewItem
         */
        private void btnAddRecord_Click(object sender, EventArgs e)
        {
            MwlItemDialog itemDlg = new MwlItemDialog(true);

            if (itemDlg.ShowDialog(this) == DialogResult.OK)
            {
                try
                {
                    // Add the new item into the database
                    SQLiteConnection SqlConn = new SQLiteConnection();
                    SqlConn.ConnectionString = String.Format("Data Source={0};New=False;Version=3", m_strDBFileName);
                    SqlConn.Open();

                    SQLiteCommand cmd = SqlConn.CreateCommand();
                    cmd.CommandText = itemDlg.m_strSqlQuery;
                    cmd.ExecuteNonQuery();

                    // Get the Item_ID of the record we just added and update the string array for creating the ListViewItem
                    cmd                         = SqlConn.CreateCommand();
                    cmd.CommandText             = "SELECT last_insert_rowid()";
                    itemDlg.m_strItemValues[23] = Convert.ToString(cmd.ExecuteScalar());

                    SqlConn.Close();

                    // Add the new ListViewItem
                    lstDatabase.Items.Add(new ListViewItem(itemDlg.m_strItemValues));
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Error adding record to database:\r\n\r\n" + ex.ToString());
                }
            }
        }