使RichTextBox在C＃.Net中加粗

Question

I'm trying to make bold text in richTextBox. Text I want to make bold is in a second row "Cpu usage" in code.

Can you edit this code to make it bold?

double cpuUsage = Math.Round(perfCpuCount.NextValue(), 2); MonitorLog.AppendText(string.Format("Cpu usage: {0}%\\r\\n\\n", cpuUsage));

Answer 1

Change the SelectionFont to include the bold style, and write the text that should be bold, then switch it back to regular:

MonitorLog.SelectionFont = new Font(MonitorLog.Font, FontStyle.Bold);
MonitorLog.AppendText("CPU Usage:");
MonitorLog.SelectionFont = new Font(MonitorLog.Font, FontStyle.Regular);
MonitorLog.AppendText(string.Format(" {0}%\r\n\n", cpuUsage));