winfrom List<T>删除一条数据在绑定dataGridView出错
if (MessageBox.Show("是否要删除选中的数据？", "提示....",MessageBoxButtons.YesNo) == DialogResult.Yes)
{
try
{
listwire.RemoveAt(this.dataGridView1.CurrentCell.RowIndex);
//MessageBox.Show("删除成功");
this.dataGridView1 = null;
this.dataGridView1.DataSource = listwire; //在这句代码报的错
}
catch (Exception ex)
{
throw;
}
}