C# winform错误：InvalidArgument=“0”的值对于“index”无效。

前面加个判断if(this.listview1.SelectedItems.Count>0)

                { 
                    this.txtName.Text = listView1.SelectedItems[0].SubItems[1].Text;
                   
                    this.txtMobilePhone.Text = listView1.SelectedItems[0].SubItems[2].Text;
                    this.txtEmail.Text = listView1.SelectedItems[0].SubItems[2].Text;
                }
                else { return; }