给定以下代码,我将如何锁定richtextbox,以便每个日志调用在另一个可以开始输入之前完成工作?
private delegate void ReportLogDelegate(RichTextBox box, Color color, string message);
public void FileLog(string file, string project, string type, string fileNr, string note)
{
if (type == "incoming")
{
this.Invoke(new ReportLogDelegate(this.AppendText), new object[] { logTextBox, Color.Orange, String.Format("{0} - {1}", DateTime.Now.ToShortDateString(), DateTime.Now.ToShortTimeString()) });
string message = string.Format("\n\tFile Incoming\n\tFile: {0}\n\tProject: {1}\n\tFileNumber: {2}\n\n", file, project, fileNr);
this.Invoke(new ReportLogDelegate(this.AppendText), new object[] { logTextBox, Color.White, message });
}
else if (type == "done")
{
this.Invoke(new ReportLogDelegate(this.AppendText), new object[] { logTextBox, Color.GreenYellow, String.Format("{0} - {1}", DateTime.Now.ToShortDateString(), DateTime.Now.ToShortTimeString()) });
string message = string.Format("\n\tFile Received\n\tFile: {0}\n\tProject: {1}\n\tFileNumber: {2}\n\n", file, project, fileNr);
this.Invoke(new ReportLogDelegate(this.AppendText), new object[] { logTextBox, Color.White, message });
}
else if (type == "error")
{
this.Invoke(new ReportLogDelegate(this.AppendText), new object[] { logTextBox, Color.Red, String.Format("{0} - {1}", DateTime.Now.ToShortDateString(), DateTime.Now.ToShortTimeString()) });
string message = string.Format("\n\tError Receiving File\n\tFile: {0}\n\tProject: {1}\n\tFileNumber: {2}\n\tError: {3}\n\n", file, project, fileNr, note);
this.Invoke(new ReportLogDelegate(this.AppendText), new object[] { logTextBox, Color.Red, message });
}
}
// Append text of the given color.
void AppendText(RichTextBox box, Color color, string text)
{
int start = box.TextLength;
box.AppendText(text);
int end = box.TextLength;
// Textbox may transform chars, so (end-start) != text.Length
box.Select(start, end - start);
{
box.SelectionColor = color;
// could set box.SelectionBackColor, box.SelectionFont too.
}
box.SelectionLength = 0; // clear
}
在另一个人访问 RTB 之前,应该允许对 FileLog 的每个调用运行到最后。