DataGridView & datasource will not clear

Question

I have a DataGridView that receives its information from a BindingList. When the program runs, the DGV should appear completely blank with no row data whatsoever. However, it instead creates a row with a couple values in some of the cells. In my Form startup, I've included

ExpenseList = new BindingList<ExpenseReportBackBone>();            
            dataGridViewPurchaseData.DataSource = ExpenseList;
            ExpenseList.Clear();
            dataGridViewPurchaseData.Rows.Clear();

to try and empty it out, but it still appears as the screenshot shows. Why is this not opening to a blank DGV?

Answer 1

作为DataGridView的默认设置， AllowUsersToAddRows设置为true，您将看到的是新添加的行。

Answer 2

i dont know why its not empty when you run the program ,but try to clear it first null the data source:

this.dataGridView.DataSource = null;

and after clear rows

this.dataGridView.Rows.Clear();

if you are using BindingList

DataGrid.DataSource = null;
DataGrid.DataBind();