在Designer. cs文件中添加gridview的cell点击事件监听
this.gridview1.CellClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.gridview1_CellClick);
在窗体cs文件中事件响应
private void gridview1_CellClick(object sender, DataGridViewCellEventArgs e)
{
int selectIndex = e.RowIndex;
labUserName.Text = table.Rows[selectIndex]["登录名"].ToString();
tbChName.Text = table.Rows[selectIndex]["姓名"].ToString();
}