After obtaining the meeting area and meeting time. but i want to merge all columns from start time to end time into a single cell as shown handle the code merger column that I don't know how to do. thank you very much
private void selectAreaColor() { string starttime1 = cboStarttime.Text; string stoptime1 = cboStoptime.Text; // Get the start time and end time inputs and the selected meeting room DateTime startTime = DateTime.ParseExact(starttime1, "HH:mm", null); DateTime endTime = DateTime.ParseExact(stoptime1, "HH:mm", null); string selectedRoom = cboRoom.SelectedItem.ToString();// // Loop through the rows in the DataGridView and find the matching row foreach (DataGridViewRow row in grdMeeting.Rows) { if (row.Cells[0].Value.ToString() == selectedRoom) { int rowIndex = row.Index; // Loop through the columns and compare the start and end times with the time slots for (int i = 1; i < grdMeeting.Columns.Count; i++) { DateTime columnTime; try { columnTime = DateTime.ParseExact(grdMeeting.Columns[i].HeaderText, "HH:mm", CultureInfo.InvariantCulture); } catch (Exception ex) { continue; } //DateTime columnTime = DateTime.ParseExact(grdMeeting.Columns[i].HeaderText, "HH:mm", null); string _HeaderText = grdMeeting.Columns[i].Name.ToString(); if (startTime == columnTime)//|| endTime == columnTime { grdMeeting.Rows[rowIndex].Cells[_HeaderText].Style.BackColor = Color.Blue; if (startTime == endTime) return; else startTime = startTime.AddMinutes(30); } } } } }
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