Question

I am new to asp.net. Here I am trying to create a chat application. In my project there is one label and one TextBox. whenever the user enters anything in TextBox and press enter the text will be shown in Label. I tried the below code:

OnEnterKeyPress of TextBox (.aspx.cs file)

        HttpRequest request = base.Request;           
        Ping p = new Ping();
        PingReply r;
        String s = request.UserHostAddress;  //using own IP address for understanding purpose.
        r = p.Send(s);
        Response.Buffer = false;
        if (r.Status == IPStatus.Success)
        {
            Label1.Text = TextBox1.Text;
        }

I dont know how to keep the enter event. (There are no events in TextBox properties as it were in C#)

Before asking here I checked many links like Link1 Link2 Link3 but no use. I could have used simple Javascript but the main code is in C# file.

Answer 1

You’ll need to put this in its own form and use javascript, since it will be in a page with other controls. You don’t want to “submit” the page every time they type something.

<form action="javascript:chat()">
put label and textbox here
</form>

This will make “enter” work for the textbox. For the chat feature, to make it more interactive, you can implement with http://signalr.net/