将值从Gridview获取到文本框

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        // 获取第二列的值
        string value = e.Row.Cells[1].Text;

        // 根据文本框的ID找到对应的文本框，并设置值
        TextBox textBox = (TextBox)e.Row.FindControl("TextBox1");
        textBox.Text = value;
    }
}

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
    // 获取选中行的第二列的值
    string value = GridView1.SelectedRow.Cells[1].Text;

    // 根据文本框的ID找到对应的文本框，并设置值
    TextBox textBox = (TextBox)GridView1.SelectedRow.FindControl("TextBox1");
    textBox.Text = value;
}