private void BtnSearch_Click(object sender, EventArgs e)
        {
            string UserInput = TxbSearch.Text;

            // Check the input
            if (string.IsNullOrWhiteSpace(UserInput))
            {
                FlexibleMessageBox.Show("Geen waarde ingevuld om naar te zoeken!", "Ongeldige invoerwaarde!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                return;
            }
            if (UserInput.Length < 3)
            {
                FlexibleMessageBox.Show("De zoekopdracht is te kort.\nProbeer een langere zoekopdracht.", "Zoekopdracht Te Kort!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                return;
            }

            Cursor.Current    = Cursors.WaitCursor;
            BtnSearch.Enabled = false;

            // Reset variables
            CurrentRowIndex               = DgvVoorraad.CurrentRow.Index;
            MatchFound                    = false;
            ResetCellStyle.BackColor      = System.Drawing.Color.White;
            FoundMatchCellStyle.BackColor = System.Drawing.Color.Yellow;

            // Select current row
            DgvVoorraad.ClearSelection();
            DgvVoorraad.Rows[CurrentRowIndex].Selected = true;

            // If a previous search has returned some results
            if (MatchesFound > 0)
            {
                for (int RowIndex = 0; RowIndex < DgvVoorraad.Rows.Count; RowIndex++)
                {
                    foreach (DataGridViewCell CellValue in DgvVoorraad.Rows[RowIndex].Cells)
                    {
                        CellValue.Style = ResetCellStyle;
                    }
                }
            }
            // reset matches found
            MatchesFound = 0;

            // Start searching DGV
            SearchDGV(0, DgvVoorraad.Rows.Count, UserInput);

            // Display message depending on the amount of matches found
            if (MatchFound == false)
            {
                FlexibleMessageBox.Show("De opgegeven waarde is niet gevonden.", "Niet gevonden");
            }
            else
            {
                FlexibleMessageBox.Show(MatchesFound + " overeenkomst(en) gevonden", "Gevonden Overeenkomsten");
            }
            BtnSearch.Enabled = true;
            Cursor.Current    = Cursors.Default;
        }
        private void GetVoorraad()
        {
            ListMagazijnItems = CommonFunctions.GetMagazijnItems(ListMagazijnItems, ConnString);
            BindingListView <MagazijnItems> view = new BindingListView <MagazijnItems>(ListMagazijnItems);

            DgvVoorraad.EndEdit();
            DgvVoorraad.DataSource = view;
            DgvVoorraad.Refresh();
        }
        /// <summary>
        /// Look through the datagridview for the matching string
        /// </summary>
        /// <param name="StartIndex">The starting location</param>
        /// <param name="EndIndex">The final location</param>
        /// <param name="SearchString">The search paramater</param>
        private void SearchDGV(int StartIndex, int EndIndex, string SearchString)
        {
            // Iterate through DGV rows, from StartIndex to EndIndex of DGV
            for (int RowIndex = StartIndex; RowIndex < EndIndex; RowIndex++)
            {
                bool MatchFoundInCell = false;

                // Iterate through each cell of current row (RowIndex) and check for a match
                foreach (DataGridViewCell CellValue in DgvVoorraad.Rows[RowIndex].Cells)
                {
                    // Ignore checkboxes
                    if (CellValue.GetType() == typeof(DataGridViewCheckBoxCell))
                    {
                        continue;
                    }
                    // If match is found, set matchFoundInCell to true;
                    if (CellValue.Value.ToString().ToLower().Contains(SearchString.ToLower()))
                    {
                        if (CellValue.Visible == true)
                        {
                            MatchFoundInCell = true;
                        }
                    }
                }
                // Highlight each cell in a row if it a match was found
                if (MatchFoundInCell == true)
                {
                    MatchFound    = true;
                    MatchesFound += 1;

                    // Change cell BackGround Color
                    foreach (DataGridViewCell CellValue in DgvVoorraad.Rows[RowIndex].Cells)
                    {
                        CellValue.Style = FoundMatchCellStyle;
                    }
                    // Continue searching or stop search at current match
                    if (FindAllMatches == false && MatchFoundInCell == true)
                    {
                        DgvVoorraad.ClearSelection();
                        DgvVoorraad.Rows[RowIndex].Selected = true;
                        DgvVoorraad.CurrentCell             = DgvVoorraad.Rows[RowIndex].Cells[0];
                    }
                }
            }
        }