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分享this.dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
this.dataGridView1.MultiSelect = false;private void dataGridView1_SelectionChanged(object sender, EventArgs e)
{
if (this.dataGridView1.SelectedRows.Count == 0) return;
this.textBox1.Text = this.dataGridView1.SelectedRows[0].Cells[0].Value.ToString();
}