Send a table in email

Question

I have a requirement to send the results of a query in emails. I am using two methods:

GetDataTable() : to execute the query and obtain datatable(wh

Answer 1

In the past, I've made an object EmailGrid.cs which inherits from GridView. Then used a method like below to render the HTML into a string.

  public string RenderControl()
        {
            StringBuilder stringBuilder = new StringBuilder();
            StringWriter stringWriter = new StringWriter(stringBuilder);
            HtmlTextWriter htmlTextWriter = new HtmlTextWriter(stringWriter);
            RenderControl(htmlTextWriter);

            return stringBuilder.ToString();
        }

Answer 2

ok, try this now:

public static void Main(string[] args)
{
    DataSet dataSet = getDataSet();
    string htmlString= getHtml(dataSet);
    SendAutomatedEmail(htmlString, "email@domain.com");
}

public static DataSet getDataSet(string CommandText)
{
    string cnString = ConfigurationManager.ConnectionStrings["Connection2"].ConnectionString;
    SqlConnection sqlConnection = new SqlConnection(cnString);

    string CommandText = "select * from dbo.fs010100 (nolock)";
    SqlCommand sqlCommand =  new SqlCommand( CommandText, sqlConnection);

    SqlDataAdapter sqlDataAdapter = new System.Data.SqlClient.SqlDataAdapter();
    sqlDataAdapter.SelectCommand = sqlCommand;

    DataSet dataSet = new DataSet();

    try
    {

        sqlDataAdapter.Fill(dataSet, "header");
        sqlConnection.Close();
    }
    catch (Exception _Exception)
    {
        sqlConnection.Close();

        return null;
    }

    return dataSet;

}


public static string getHtml(DataSet dataSet)
{
    try
    {
         string messageBody = "<font>The following are the records: </font><br><br>";

         if (dataSet.Tables[0].Rows.Count == 0)
             return messageBody;
         string htmlTableStart = "<table style=\"border-collapse:collapse; text-align:center;\" >";
         string htmlTableEnd = "</table>";
         string htmlHeaderRowStart = "<tr style =\"background-color:#6FA1D2; color:#ffffff;\">";
         string htmlHeaderRowEnd = "</tr>";
         string htmlTrStart = "<tr style =\"color:#555555;\">";
         string htmlTrEnd = "</tr>";
         string htmlTdStart = "<td style=\" border-color:#5c87b2; border-style:solid; border-width:thin; padding: 5px;\">";
         string htmlTdEnd = "</td>";

         messageBody+= htmlTableStart;
         messageBody += htmlHeaderRowStart;
         messageBody += htmlTdStart + "Column1 " + htmlTdEnd;
         messageBody += htmlHeaderRowEnd;

         foreach (DataRow Row in notShippedDataSet.Tables[0].Rows)
         {
             messageBody = messageBody + htmlTrStart;
             messageBody = messageBody + htmlTdStart + Row["fieldName"] + htmlTdEnd;
             messageBody = messageBody + htmlTrEnd;
         }
         messageBody = messageBody + htmlTableEnd;


         return messageBody;
     }
     catch (Exception ex)
     {
          return null;
     }
 }

public static void SendAutomatedEmail(string htmlString, string recipient = "user@domain.com")

{
 try
 {
     string mailServer = "server.com";

     MailMessage message = new MailMessage("it@domain.com", recipient);
     message .IsBodyHtml = true;
     message .Body = htmlString;
     message .Subject = "Test Email";

     SmtpClient client = new SmtpClient(mailServer);
     var AuthenticationDetails = new NetworkCredential("user@domain.com", "password");
     client.Credentials = AuthenticationDetails;
     client.Send(message);
 }
 catch (Exception e)
 {

 }

}

Answer 3

If you are wanting to do the same thing but loop thru the datatable via a DataAdapter look at this link for a quick example .. because you are pretty much doing the same thing this example shows with the exception you are trying to pass the entire datatable vs building the results into the email body.. How to use DataAdapter to DataTable via Email

Answer 4

Other dynamic function:

private string RenderDataTableToHtml(DataTable dtInfo)
    {
        StringBuilder tableStr = new StringBuilder();

        if(dtInfo.Rows != null && dtInfo.Rows.Count > 0)
        {
            int columnsQty = dtInfo.Columns.Count;
            int rowsQty = dtInfo.Rows.Count;

            tableStr.Append("<TABLE BORDER=\"1\">");
            tableStr.Append("<TR>");
            for (int j = 0; j < columnsQty; j++)
            {
                tableStr.Append("<TH>" + dtInfo.Columns[j].ColumnName + "</TH>");
            }
            tableStr.Append("</TR>");

            for (int i = 0; i < rowsQty; i++)
            {
                tableStr.Append("<TR>");
                for (int k = 0; k < columnsQty; k++)
                {
                    tableStr.Append("<TD>");
                    tableStr.Append(dtInfo.Rows[i][k].ToString());
                    tableStr.Append("</TD>");
                }
                tableStr.Append("</TR>");
            }

            tableStr.Append("</TABLE>");
        }            

        return tableStr.ToString();
    }
}