Индекс строки выбранной ячейки datagridview

private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            textBox2.Text = dataGridView1.CurrentRow.Index.ToString();
        }

private void dataGridView_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            textBox1.Text = e.RowIndex.ToString();
        }

// 
            // dataGridView1
            // 
            this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            this.dataGridView1.Location = new System.Drawing.Point(15, 19);
            this.dataGridView1.Name = "dataGridView1";
            this.dataGridView1.Size = new System.Drawing.Size(240, 150);
            this.dataGridView1.TabIndex = 0;

this.dataGridView1.CellClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView_CellClick);

// 
            // dataGridView1
            // 
            this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            this.dataGridView1.Location = new System.Drawing.Point(15, 19);
            this.dataGridView1.Name = "dataGridView1";
            this.dataGridView1.Size = new System.Drawing.Size(240, 150);
            this.dataGridView1.TabIndex = 0;
            this.dataGridView1.CellClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView_CellClick);
            // 
            // dataGridView2
            // 
            this.dataGridView2.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            this.dataGridView2.Location = new System.Drawing.Point(15, 175);
            this.dataGridView2.Name = "dataGridView2";
            this.dataGridView2.Size = new System.Drawing.Size(240, 150);
            this.dataGridView2.TabIndex = 1;
            this.dataGridView2.CellClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView_CellClick);