I have described in this blog ”how to send whatsapp messages using do net (.NET) ”. After reading this blog you can easily understand how to use. We have explained step by step with source code. Increase your technical skills after reading this blog. This is very useful for.NET developers.

1. Sending WhatsApp Message in .Net
Hi Friends!
This time I am here with a very small article about sending WhatsApp Message from your .Net
application. I have described in this blog ”how to send whatsapp messages using do net (.NET) ”.
After reading this blog you can easily understand how to use. We have explained step by step with
source code. Increase your technical skills after reading this blog. This is very useful for.NET
developers.
You need following things for that.
1. WART(WhatsApp Registration Tool)
This a tool with which you can get the password to be used in API.
2. WhatsApp Api for C#(Highly Unstable Currently and Without any proper documentation)
3. Any mobile number on which you are not using WhatsApp currently and You will not be using it in
future for WhatApp(As your number may be blocked if you send multiple messages. Again the
blocking criteria is uncertain and my number was blocked after 3-5 messages !!):-(
So first thing first. Download the WhatsApp Api for C# via nuget package manager. If you see a
reference of the API in your reference,that's good. Otherwise download the API manually and add
the reference.
Now we are all set for creating our application. So create the UI like following(I used WinForms):-

2. Fig 1-The User Interface
On the click event of the button write following code:-
string nickname = "Mani";
1. string senderp = "your number with country code";
2. string password = "your password"; // Obtain it with WART or
Yowsup
3.
4. WhatsApp wa = new WhatsApp(senderp, password, nickname, true);
5. wa.OnConnectSuccess += () =>
6. {
7. Console.WriteLine("Connected");
8. wa.OnLoginSuccess += (phoneNumber, data) =>
9. {
10. MessageBox.Show("Connection success!");
11.
12. wa.SendMessage(txtNo.Text/* Number */, txtMsg.Text);
13. MessageBox.Show("Message sent!");
14. };
15. wa.OnLoginFailed += (data) =>
16. {
17. MessageBox.Show("Login failed: {0}", data);
18. };
19. wa.Login();
20. };
21. wa.OnConnectFailed += (ex) =>
22. .. Read Full Blogs : Sending WhatsApp Message in .Net

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