private string timejia(string name, DataTable tt)
{
TimeSpan tms = new TimeSpan();
for (int i = 1; i < tt.Rows.Count;i++)
{
if (tt.Rows[i][0].ToString() == name)
{
DateTime time = Convert.ToDateTime(tt.Rows[i][12]);
TimeSpan tmsall = new TimeSpan(time.Hour, time.Minute, time.Second);
tms += tmsall;
}
int timeH = tms.Days * 24 + tms.Hours;
double timeM = Convert.ToDouble(tms.Minutes / 60.0);
string all = "" + timeH + "" + "." + "" + timeM + "" + "小时";
return all;
}
}错误提示:错误 3 “insert.timejia(string, System.Data.DataTable)”: 并非所有的代码路径都返回值 E:\net\EXCEL\App_Code\insert.cs 62 20 E:\net\EXCEL\if 里面知识一直加!!
到下面才返回一个 值然后在别的地方接值。 可是不知道是怎么回事?????
在线等。。赶进度呢!!
{
TimeSpan tms = new TimeSpan();
for (int i = 1; i < tt.Rows.Count;i++)
{
if (tt.Rows[i][0].ToString() == name)
{
DateTime time = Convert.ToDateTime(tt.Rows[i][12]);
TimeSpan tmsall = new TimeSpan(time.Hour, time.Minute, time.Second);
tms += tmsall;
}
int timeH = tms.Days * 24 + tms.Hours;
double timeM = Convert.ToDouble(tms.Minutes / 60.0);
string all = "" + timeH + "" + "." + "" + timeM + "" + "小时";
return all;
}
}错误提示:错误 3 “insert.timejia(string, System.Data.DataTable)”: 并非所有的代码路径都返回值 E:\net\EXCEL\App_Code\insert.cs 62 20 E:\net\EXCEL\if 里面知识一直加!!
到下面才返回一个 值然后在别的地方接值。 可是不知道是怎么回事?????
在线等。。赶进度呢!!
double timeM = Convert.ToDouble(tms.Minutes / 60.0);
string all = "" + timeH + "" + "." + "" + timeM + "" + "小时";
return all;
这些应该放在for外面吧
返回 放到最下面去
private string timejia(string name, DataTable tt)
{
TimeSpan tms = new TimeSpan();
string all = ""
for (int i = 1; i < tt.Rows.Count;i++)
{
if (tt.Rows[i][0].ToString() == name)
{
DateTime time = Convert.ToDateTime(tt.Rows[i][12]);
TimeSpan tmsall = new TimeSpan(time.Hour, time.Minute, time.Second);
tms += tmsall;
}
int timeH = tms.Days * 24 + tms.Hours;
double timeM = Convert.ToDouble(tms.Minutes / 60.0);
all = "" + timeH + "" + "." + "" + timeM + "" + "小时";
}
return all;
}
all的return放在最后,也就是 “}”前。
为空的不考虑~~ 不可能为空的~~~应该是下面这样的
···· private string timejia(string name, DataTable tt)
{
TimeSpan tms = new TimeSpan();
for (int i = 1; i < tt.Rows.Count; i++)
{
if (tt.Rows[i][0].ToString() == name)
{
DateTime time = Convert.ToDateTime(tt.Rows[i][12]);
TimeSpan tmsall = new TimeSpan(time.Hour, time.Minute, time.Second);
tms += tmsall;
}
}
int timeH = tms.Days * 24 + tms.Hours;
double timeM = Convert.ToDouble(tms.Minutes / 60.0);
string all = "" + timeH + "" + "." + "" + timeM.ToString().Substring(2) + "" + "小时";
return all;
}