Convert Datatable To Byte Array To Send As Email Attachment
May 13, 2014
Every morning we send out an email with a text file attached. This is a manual process so I am automating it.I am using an internal mail web service. Its last two parameters are a byte array which is the file contents and a string which is the file name. I passed (...gbytes, "test.txt") and the only thing wrong with it is text.txt is XML. I want it to be text (csv is fine because there is actually four columns that come from a datatable).So I am assuming what's making it XML is this code:
Code:
System.IO.MemoryStream stream = new System.IO.MemoryStream();
System.Runtime.Serialization.IFormatter formatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
formatter.Serialize(stream, ds.Tables[0]);
gbytes = stream.GetBuffer();
I am trying to search the Internet for how to convert a datatable to a byte array, but I can't find how to have it be text instead of XML. Also, another parameter our WS takes is a flag to say if it's XML, and I am setting this to false.
In my aspx page I have a HTML inputfile type which allows user to browse for a spreadsheet.Once the user choses the file to upload I want to read the content of the spreadsheet and store the content into mysql database table. I am using the following code to read the content of the uploaded file and convert it into a datatable in order into insert it into database table.
if (filMyFile.PostedFile != null) { // Get a reference to PostedFile object HttpPostedFile myFile = filMyFile.PostedFile; // Get size of uploaded file int nFileLen = myFile.ContentLength; // make sure the size of the file is > 0 if (nFileLen > 0) { // Allocate a buffer for reading of the file byte[] myData = new byte[nFileLen]; // Read uploaded file from the Stream myFile.InputStream.Read(myData, 0, nFileLen);...................................
I am using Microsoft Outlook interop to display email with filled out email addresses and attachment.
Now Everything works fine except one problem with Attachment. The problem is that I am getting attachment from other methods as Byte Array and if I am not able to pass this byte array as attachment to outlook object's attachment. I believe tt requires a physical file from disk. how can I conver this Byte Array to attach it with Outlook.Attachment object?
Here is my code. In this code, for now I hardcoded attachment from "C: est.txt" but I need to change it to Byte Array, I tried but its throwing error.how can I change it to Byte Array?
I have coded random string as below and i want to convert it to qr code , then send to email automatically...
Dim chars As String = "Test1" Dim qr As String = "" Dim r As New Random() Dim i As Integer For i = 1 To 5 qr += chars.Substring(r.Next(chars.Length), 1) Next
I am develping an application that integrates with an RFID kit. The problem is, the kit comes with an .cs class that accepts data stored in a byte array however, each information stored in the array respresents an int. I wanted to store String information in each array but, my research suggest that a String itself can be converted to a byte array and not a byte....here the code from the .cs class:
I have datatable with records and i have existng Excel file in my application temp folder i want to export datatable records in this excel file workbook and i want to convert this excel workbook into byte array and i want to send this byte array in reponse.write to user to give download excel file option
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if we get those images hexadecimal rtf codes we have "0ef1caf...........0d" billions characters like this.I what to convert this hexadecimal explanation to byte array to save images one by one to where i want.
I want to send an email that has a machine readable part you cut and paste into an asp.net page and you get the information. I have stored all the information in an object and then used an XMLSerizer to create some xml. It all worked fine until I added some Images as byte[] to the object. If I dump the resulting string to disk then I can recreate the object fine but after it appears in the email client and I try to cut and paste it it never works. Clearly there are non standard characters coming out that email clients don't like.
Is there some encoding I could apply to my XML that would make it display correctly in an email client? Then I could cut, paste, decode and deserilize to get my object back.
I would like to send an email with attachement via form, and I can`t figure it out.
My View
[Code]....
My Controller
[Code]....
I get the FileNotFoundException, it is trying to search for the file name on the local machine insted of returning the user input, something like "C:\exemple.txt" .
I also use a jQuery Ajax email form, when I submit the form via ajax the fileAttachement is always null, is there any way around it ?
Im generating a PDF file. Normally I send this to the user using a .ashx file, where the user can directly download it from his browser (see that code below).
Protected Function getfile() As MemoryStream Dim stream As MemoryStream = New MemoryStream If document.PageCount > 0 Then document.Save(stream, False) 'Context.Response.Clear() 'Context.Response.ContentType = "application/pdf" 'Context.Response.AddHeader("Content-disposition", "attachment;filename=TicketEZ_tickets_" + eventname + ".pdf") 'Context.Response.AddHeader("content-length", stream.Length.ToString) 'Context.Response.BinaryWrite(stream.ToArray) 'Context.Response.Flush() Return stream stream.Close() 'Context.Response.End() End If
But now I want to send this file as an email attachment...how can I do that? I tried this, but that doesnt work...(Value of type 'System.IO.MemoryStream' cannot be converted to 'String')
Dim att As New System.Net.Mail.Attachment(getfile) Msg.Attachments.Add(att)
I have a strange problem with sending email via asp.net.
I adding to my email an attachment with long name ("Xxxxxxxx ąę łóxxxx yyyyyyyyyńęąąyy bbbbbbbbbb b wwwwwwwww wwwwwww ooooooooo" - polish chars included). Next I receiving that email with that file but I can't read the file. There is like damaged, with different name - ""=_utf-8_B_WHh4eHh4eHggxIXEmSDFgsOzeHh4eCB5" and the file size is a little bigger.
I know how to send an email. But now I want to send an email with an attachment. I also want to allow the user to browse for and then select the attachment. I cannot seem to find any info on this. All the articles I find show how to attach a file where you know the path and file name. I want the user to browse their drive, select a file, and then send an email with this attachment.
Is there a way to send the same email to multiple recipients but also send with an attachment to only 1 of them?eg. I have a form that gets filled out, the user gets a copy of the form with an attachment (file sits on server). The site owner also wants the email (through bcc) but without the attachment.
I have completed sending attachment/pdf with email.
I have to send password protected attachment/pdf while sending email so that reciepeint should be asked to enter password while opening attachment/pdf and he will open attachment/pdf only after entering password.
Protected Sub btnExport_Click(sender As Object, e As EventArgs) Response.ContentType = "application/pdf" Response.AddHeader("content-disposition", "attachment;filename=TestPage.pdf")
[Code].....
But i want the file to save in the particular folder....
I want to put email button in my detail view form when user press email button it automatically move towards login when he enter the id pass automatically form attached of that detail view all this records n form is store in my database how can i make this possibel?
What I actually need is : when I click export button textbox data should be send to excel file and particular textbox data should be received at particular cell.
E.g:- textbox1 to send to c3 or c4
textbox 2 to send g9
when i click mail button, that data should be send to excel and automailed as attachment, i have 3 excel files with different formats, export button should view all the excel files with their respective data and mail button should send mail the excel files with data ,
1 user i excel file 2nd user 2nd excel file 3rd user 3 excel file
My requirement is like .... I have a text box for ToEmail address , another control is to upload "n" no of files. And a button to send those selected files ToEmail address which had entered in textbox.
