如何循环退出？ [英] How to While Loop Exit?
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问题描述
请帮助我，如何循环退出。我指示了地方,,,
Hi,
Kindly help me, How to While loop Exit . I indicated place,,,
using (XmlReader reader = XmlReader.Create(new StringReader(recievedXML), xrs))
{
while (reader.Read())
{
if (reader.IsStartElement())
{
switch (reader.Name)
{
case "start":
String time = DateTime.Now.TimeOfDay.ToString();
StartTimeTextBox.Text = time.Substring(0, time.Length-8);
break;
case "vol":
if (reader.Read())
{
volumeTextBox.Text = reader.Value;
csvData.Append(reader.Value + ";");
}
else
{
MessageBox.Show("Data Not Read");
/// ====================================> I want to whlie Loop exit here <===============
}
String time1 = DateTime.Now.TimeOfDay.ToString();
EndTimeTextBox.Text = time1.Substring(0, time1.Length-8);
break;
case "hct":
if (reader.Read())
{
HctTextBox.Text = reader.Value;
csvData.Append(reader.Value + ";");
}
break;
case "joule":
if (reader.Read())
{
EnergyTextBox.Text = "00"+reader.Value;
csvData.Append("00"+reader.Value + ";");
}
break;
/*case "jouleend":
if (reader.Read())
{
jouleendTextBox.Text = reader.Value;
csvData.Append("jouleend," + reader.Value + "\n");
}
break;*/
case "complete":
if (reader.Read())
{
ProcedureCompletedTextBox.Text = "OK";
csvData.Append("OK" + ";");
}
break;
case "runtime":
if (reader.Read())
{
TotalTimeTextBox.Text = reader.Value;
csvData.Append(reader.Value + ";");
}
break;
case "pausetime":
if (reader.Read())
{
PauseTextBox.Text = reader.Value;
csvData.Append(reader.Value + ";");
}
break;
case "nrpause":
if (reader.Read())
{
NoOfPauseTextBox.Text = reader.Value;
csvData.Append(reader.Value + ";");
}
break;
case "temperature":
if (reader.Read())
{
temperatureTextBox.Text = "00"+reader.Value;
csvData.Append("00"+reader.Value + ";");
}
break;
}
}
}
}
}
catch (Exception e)
{
String fileName = Path.GetPathRoot(Environment.SystemDirectory) + "\\MED_DATA\\exception_" + DateTime.Now.ToString("ddMMyyyyhhmmss") + ".txt";
File.WriteAllText(fileName, e.Message + "\n" + e.StackTrace + "\n" + e.Source + "\n" + e.InnerException + "\n" + e.ToString());
}
[Edit member=\"Tadit\"]
Added pre tags.
[/Edit]
推荐答案
Normally you’dbreakout of it. But what I’d be inclined to do here is put the while loop in its own method, and use areturnto get out of that.
An alternative would be to create a Boolean, and set it where you want to exit. Use the Boolean in an ’and’ condition in the while statement.
Normally you'dbreakout of it. But what I'd be inclined to do here is put the while loop in its own method, and use areturnto get out of that.
An alternative would be to create a Boolean, and set it where you want to exit. Use the Boolean in an 'and' condition in the while statement.
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