Creating a Web Service for a Login Page

• Go to Visual Studeo 2010 and take a New Project.
• Select a ASP.NET Empty Web Application.
• Give it a name and click ok button.
  

Step 5: Now add service in your web application. Go to Solution Explorer and right click at your project. Click at Add Web Reference. A new window will open. Its screen-shot is given below.

• Now paste the URL of your service and click at Go button.
• Click on Add reference. Now service has added into your project.
• Now go to design page of your web application and take some user interfaces to accept user name and password and a button.
• Write the following code in the .aspx.cs file on buton Click event.
  
  protected void btnok_Click(object sender, EventArgs e)
  {
  localhost.Service1 obj=new localhost.Service1();
  DataSet ds = obj.login(TextBox1.Text, TextBox2.Text);
  if (ds.Tables[0].Rows.Count > 0)
  {
  Label1.Text = "Hi ," + ds.Tables[0].Rows[0][1].ToString();
  }
  else
  {
  Label1.Text = "Invalid UserName or Password.";
  }
  }
  

Step 6: Run the web application.

Output:



Write the user name and password in TextBoxes and click the ok Button. In this example, Database name is EMP which has a table Login. There is only one record in Login table - abc is user_name and xyz is password. Do right input for user name and password and click the ok button.

Output:

Now do wrong input for user name and password and click the ok button.

Output: