check time - hour and minute only - new problem

Hi,

How can I validate a time to ensure that the hour and minute are not of the past.

I tried someting lile this

Code:

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(dtpFrom.Value.TimeOfDay) < (DateTime.Now.TimeOfDay)

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but this is also looking at seconds. I want to check only whether the hour and minute is of the past and not the seconds.

Any help:o

Try this,

C# Code:

if (dtpFrom.Value.ToShortTimeString().Compare(DateTime.Now.ToShortTimeString()) == -1)
{
    //Do Something
}

EDIT: Is dtpFrom a DateTimePicker class?? Isn't this value, dtpFrom.Value, return the current time??

Quote:

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Originally Posted by Harsh Gupta

Try this,

C# Code:

if (dtpFrom.Value.ToShortTimeString().Compare(DateTime.Now.ToShortTimeString()) == -1)
{
    //Do Something
}

EDIT: Is dtpFrom a DateTimePicker class?? Isn't this value, dtpFrom.Value, return the current time??

---

Thanks.....:) and also it should be CompareTo instead of Compare

Quote:

---

Originally Posted by sunshine123

Thanks.....:) and also it should be CompareTo instead of Compare

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But it does not work when the hour is 10, 11 or 12. Why is that.

say for example if the current time is 3.30 pm, I have selected 2.30 pm then it identifies it as a past time. But if I have selected 10.30pm it still is calculated as a past time.

Any help please..??:o

Sorry, my mistake, the CompareTo() works only with strings and the ToShortTimeString() returns a string, and so it compares the first non matching symbol in the 2 strings and checks for precedence. 1 comes before 2,3, hence it doesn't work for you.

Check for DateTime.Compare(DateTime, DateTime) method or DateTime.CompareTo(DateTime) method.

Thank you Harsh for the links ...It just worked perfectly:)