assign to a c# variable a value from a listview

Question

0.00/5 (No votes)

See more:

Hi guys,

I have a list view (which is retrieving data from a database) it has columns (id,name,price,quantity)

I want to check the quantity value and if it is var<5 to send an e-mail with products characteristics (id,name,price) to administrator.

I found the following code which works it sends email:

C#

MailMessage mailObj = new MailMessage(
            "from", "to", "Product low quantity", "your product has low quantity");

        SmtpClient SMTPServer = new SmtpClient("localhost");
        try
        {
            SMTPServer.UseDefaultCredentials = false;
            SMTPServer.Host = "smtp.gmail.com";
            SMTPServer.Port = 587;
            SMTPServer.Credentials = new NetworkCredential("email", "password");
            SMTPServer.EnableSsl = true;
            SMTPServer.Send(mailObj);
        }
        catch (Exception ex)
        {
            // Label1.Text = ex.ToString();
        }

so i want to check somehow the quantity of the product

Any help?

Thanks in advance!!

Jason

Posted 3-Oct-13 2:26am

JasonTsoum77

Updated 3-Oct-13 2:45am

Tejas Vaishnav

v2

Add a Solution

Comments

Azee 3-Oct-13 8:31am

do you want to check quantity for each row of listview?

JasonTsoum77 3-Oct-13 8:59am

yes

Tejas Vaishnav 3-Oct-13 8:46am

have you tried any thing for checking the value of quantity?

JasonTsoum77 3-Oct-13 9:00am

yes but how can i retrieve it to c# from asp

Tejas Vaishnav 3-Oct-13 9:03am

can you share your code over your post, just use improve question option and add you code with formatted with code blocks

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

**Azee** · Accepted Answer · 2013-10-03T03:08:00

Solution 1

Hey there,

Try this:
Add DataKeyNames property of ListView first, like: DataKeyNames="quantity"
and Use this code to check quantity:

C#

foreach (ListViewDataItem item in ListView1.Items)
            {
                int quantity = Convert.ToInt32(ListView1.DataKeys[item.DisplayIndex]["quantity"].ToString());
                if (quantity < 5)
                {
                    //Send Email here
                }
            }

You can get other values of a specific row similar to Quanity.

Hope it helps

Azee...

Posted 3-Oct-13 3:08am

Azee

Comments

JasonTsoum77 3-Oct-13 11:25am

well i try it but i receive null reference exception
here is my whole code

----------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net.Mail;
using System.Net;
using System.Data;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Configuration;
using System.Text;

public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
protected void Btn_SendMail_Click(object sender, EventArgs e)
{

}
protected void Button1_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ToString());
string asql = "SELECT quantity from products";
int val = Convert.ToInt32(Request.QueryString["quantity"]);
try
{
con.Open();
SqlCommand query = new SqlCommand(asql, con);

foreach (ListViewDataItem item in ListView1.Items)
{
int quantity = Convert.ToInt32(ListView1.DataKeys[item.DisplayIndex]["quantity"].ToString());
if (quantity < 5)
{
MailMessage mailObj = new MailMessage(
"from", "to", "Product low quantity", "your product has low quantity");

SmtpClient SMTPServer = new SmtpClient("localhost");
try
{
SMTPServer.UseDefaultCredentials = false;
SMTPServer.Host = "smtp.gmail.com";
SMTPServer.Port = 587;
SMTPServer.Credentials = new NetworkCredential("email", "password");
SMTPServer.EnableSsl = true;
SMTPServer.Send(mailObj);
}
catch (Exception ex)
{
// Label1.Text = ex.ToString();
}

}
}

}
finally
{
con.Close();
}//end of reduce quantity
}

}
----------------------------------------------------

JasonTsoum77 3-Oct-13 13:17pm

it workded!!!! Thank you for your help

Azee 3-Oct-13 13:29pm

Great, cheers :)