异常datagridview：索引1没有值

Question

我似乎无法解决这个问题。 参见下面的代码，当在运行的程序中向datagridview添加第二行时，我得到下面引发的异常；

exception datagridview：System.IndexOutOfRangeException：System.Windows.Forms.CurrencyManager.get_Item（Int32index）bij System.Windows.Forms.DataGridView.DataGridViewDataConnection.GetError（Int32 rowindex）上没有索引1的值。

已经在谷歌上寻找解决方案，但似乎找不到合适的解决方案。 有人知道如何解决这个问题吗？

（已经编写了其他类似的程序，但在数据集中有更多的数据表，但我没有遇到这个问题，所以我真的不明白为什么它不起作用，而且我最近才开始学习代码:)）

    using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Garages
{
    public partial class FrmGarages : Form
    {
        DataSet datasetGarages = new DataSet("Garages");
        BindingSource bindingSourceGarages = new BindingSource();

        public FrmGarages()
        {
            InitializeComponent();
            datasetGarages.Tables.Add(createDataTableGarages());
            bindingSourceGarages.DataSource = datasetGarages.Tables["Garages"];

            txbChassisnummer.DataBindings.Add("Text", bindingSourceGarages, "Chassisnummer");
            txbKenteken.DataBindings.Add("Text", bindingSourceGarages, "Kenteken");
            dtpFabricagedatum.DataBindings.Add("Value", bindingSourceGarages, "Fabricagedatum");
            dtpDatumOpKenteken.DataBindings.Add("Value", bindingSourceGarages, "DatumOpKenteken");
            txbMerk.DataBindings.Add("Text", bindingSourceGarages, "Merk");
            txbType.DataBindings.Add("Text", bindingSourceGarages, "Type");
            txbKleur.DataBindings.Add("Text", bindingSourceGarages, "Kleur");
            txbBrandstof.DataBindings.Add("Text", bindingSourceGarages, "Brandstof");
            txbAantalKilowats.DataBindings.Add("Text", bindingSourceGarages, "AantalKilowats");
            txbAantalPortieren.DataBindings.Add("Text", bindingSourceGarages, "AantalPortieren");
            txbModel.DataBindings.Add("Text", bindingSourceGarages, "Model");
            txbTrekhaak.DataBindings.Add("Text", bindingSourceGarages, "Trekhaak");

            cmbMerk.DataSource = bindingSourceGarages;
            cmbMerk.DisplayMember = "Merk";
            cmbType.DataSource = bindingSourceGarages;
            cmbType.DisplayMember = "Type";
            cmbBrandstof.DataSource = bindingSourceGarages;
            cmbBrandstof.DisplayMember = "Brandstof";
            cmbAantalPortieren.DataSource = bindingSourceGarages;
            cmbAantalPortieren.DisplayMember = "AantalPortieren";


            dgvGarages.DataSource = bindingSourceGarages;

        }

        private void btnEinde_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private DataTable createDataTableGarages()
        {
            DataTable dtGarages = new DataTable("Garages");

            DataColumn Chassisnummer = new DataColumn("Chassisnummer", typeof(string));
            Chassisnummer.Unique = true;
            dtGarages.Columns.Add(Chassisnummer);


            //dtGarages.Columns.Add("Chassisnummer", typeof(string));
            //dtGarages.Columns["Chassisnummer"].Unique = true;
            dtGarages.Columns.Add("Kenteken", typeof(string));
            dtGarages.Columns["Kenteken"].MaxLength = 8;
            dtGarages.Columns["Kenteken"].Unique = true;
            dtGarages.Columns["Kenteken"].AllowDBNull = true;

            dtGarages.Columns.Add("FabricageDatum", typeof(DateTime));
            dtGarages.Columns.Add("DatumOpKenteken", typeof(DateTime));
            dtGarages.Columns["DatumOpKenteken"].AllowDBNull = true;
            dtGarages.Columns.Add("Merk", typeof(string));
            dtGarages.Columns["Merk"].MaxLength = 25;
            dtGarages.Columns.Add("Type", typeof(string));
            dtGarages.Columns["Type"].MaxLength = 25;
            dtGarages.Columns.Add("Kleur", typeof(Color));
            dtGarages.Columns.Add("Brandstof", typeof(string));
            dtGarages.Columns["Brandstof"].MaxLength = 10;
            dtGarages.Columns.Add("AantalKilowats", typeof(double));
            dtGarages.Columns.Add("AantalPortieren", typeof(byte));
            dtGarages.Columns.Add("Model", typeof(string));
            dtGarages.Columns["Model"].MaxLength = 15;
            dtGarages.Columns.Add("Trekhaak", typeof(bool));

            dtGarages.PrimaryKey = new DataColumn[] { Chassisnummer };

            return dtGarages; 
        }

        private void dgvGarages_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
        {
            if (this.dgvGarages.Columns[e.ColumnIndex].Name.Equals("Kleur"))
            {
                if (colorDialog1.ShowDialog() == DialogResult.OK)
                {
                    this.dgvGarages.Rows[e.RowIndex].Cells[6].Value = colorDialog1.Color;
                }
            }
        }

        private void dgvGarages_RowsAdded(object sender, DataGridViewRowsAddedEventArgs e)
        {
            dgvGarages.Refresh();

        }
    }
}