C#我的datagridview列显示了错误的年份

使用MySQL数据库：

我的

DataGridView

结果：

我的代码

MySqlCommand cmd = new MySqlCommand("SELECT Invoices.InvoiceDate,InvoiceDetail.ProductName,InvoiceDetail.Quantity,InvoiceDetail.Discount FROM Invoices INNER JOIN InvoiceDetail ON Invoices.InvoiceID=InvoiceDetail.InvoiceID WHERE Invoices.CustomersID='" + textBox1.Text + "'", con);

MySqlDataAdapter sda = new MySqlDataAdapter();
sda.SelectCommand = cmd;

DataTable dt = new DataTable();
sda.Fill(dt);

BindingSource bs = new BindingSource();
bs.DataSource = dt;

dataGridView1.DataSource = bs;
dataGridView1.Columns[0].DefaultCellStyle.Format = "yyyy/MM/dd";

sda.Update(dt);

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您可以对gridview使用DataFormatString=“{0:yyyy/MM/dd}”

如果不格式化，会发生什么？尝试注释：dataGridView1.Columns[0]。DefaultCellStyle.Format=“yyyy/MM/dd”；这条线？