如何在不删除列标题的情况下清除所有行datagridview c＃

Question

I have a datagridview bound to a datasource, all headers are added to the columns collection with a datapropertyname set.

When I clear the datagridview using

DataGridView1.DataSource = null;

The headers also disappear and when I fill the datagridview again the header texts are the database column names.

Before refilling datagridview

After clearing and refilling the datagridview

I do this to fill my datagridview

    MyDataGridView.DataSource = MyDatabase.MyTable.Select(rows => new
                {
                    ProductName = rows.Product.Name,
                    Quantity = rows.Quantity,
                    SalePrice = rows.SalePrice,
                    SubTotal = rows.Quantity * rows.SalePrice
                }).ToList();

So, is it possible to clear all rows without removing column header?

Answer 1

您可以使用此命令清除所有行：

MyDataGridView.Rows.Clear();

Answer 2

It works for me:

var dt = MyDataGridView.DataSource as DataTable;
dt.Rows.Clear();
MyDataGridView.DataSource = dt;