单击按钮发送后，将列值添加到gridview中选择的行

Question

我在使用（C＃）后面的代码填充我的gridview，我有一个名为[SO_Status]的列，这一列在开头是空的，我想将[SO_Status]的值更改为“SO已经发送”时我点击按钮发送！

这是我的网格视图的捕获：

选择代码是：

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
    Int16 email;
    if ( e.CommandName == "Select")
    {
        email = Convert.ToInt16(e.CommandArgument);
        em.Text = GridView1.Rows[email].Cells[4].Text;
    }
}
public void Send_Click(object sender, EventArgs e)
{
    if (FileUploadControl.HasFile)
    {
        client.DeliveryMethod = SmtpDeliveryMethod.Network;
        client.Host = "smtp.gmail.com";
        client.Port = 587;
        ....
        try
        {
            client.Send(msg);
            ClientScript.RegisterClientScriptBlock(this.GetType(), "validation", "alert('Your Email was sent successfully!');", true);       
        }
        catch
        {
            Response.Write("Sent error");
        }
    }
}

我使用选择按钮从该行获取邮件地址并发送电子邮件到此邮件地址，我想在发送此电子邮件后更改SO_Status，以避免再次向同一个人发送电子邮件。

Answer 1

您需要更新数据库中的SO_Status并从数据库重新绑定网格。

 protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        Int16 email;
        if ( e.CommandName == "Select")
        {
            email = Convert.ToInt16(e.CommandArgument);
            em.Text = GridView1.Rows[email].Cells[4].Text;
            //send the email
             if (Sendmail(em.Text))
             {
                updateStatus(em.Text);
                // rebind the grid. 
                bindgrid(); 
             }
             else
              {
               // write code to show error message.
              }
        }
    }






 private bool Sendmail( string email)
  {
    // code to send mail 
    // you can find the code on google.

   return returnvalue;
  }



 private void updateStatus(string email)
  {
    // Code to update db colomn
  }

   private void bindgrid()
  {
       // code to bind grid.
  }