Export data from excel file (with a date column) to DataGrid using SmartXLS

Question

I've successfully exported data from excel to datagrid through the following code:

using System;
using System.Data;
using System.Windows;
using System.Windows.Data;
using SmartXLS;


namespace Calibration_Trial
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            WorkBook m_book = new WorkBook();
            m_book.readXLSX("trial.xlsx");

            //Read data from spreadsheet.
            DataTable mbooktable = m_book.ExportDataTable(9, 0, 4, 4, false, true);


            simpleDataGrid.ItemsSource = mbooktable.AsDataView();
        }
    }
}

The ExportDataTable has 6 parameters, as you can see. The last parameter is true which means it should check if the column is of datetime type. So I don't get why I'm still getting the wrong output. Am I missing something?

Here's a screenshot (The Column4 should be of DateTime format :():

Answer 1

I figured the DateTime format only works if each value in the column (in the excel file itself) is in date format. I guess there's no other way but to delete everything that is not in date format. ☹