some times we need to show the status to the user if some log process is going on. also if any exception in that process.
for that if we will write the message to a textbox(textarea), it will look like realtime message as follow.
the textbox(textarea) control name is "txtStatus"
//each time append the new text to the previous text
txtStatus.Text += "Message from the businees logic to be displayed.";
// this main to just update the control , so that the new text will refreshed