How do I convert timespan into decimal

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In windows application I need to convert a HH:MM timespan into decimal HH.MM.. Please help me with the same urgently

What I have tried:

TimeSpan StartTime = TimeSpan.Parse(dtpStartTime.Value.ToString("HH:MM"));
TimeSpan EndTime = TimeSpan.Parse(dtpEndTime.Value.ToString("HH:MM"));

if (StartTime <= EndTime)
{
WorkingHours = (EndTime - StartTime);
double th;

int j= Convert.ToInt32(TotalDays.ToString());
for (int i = 1; i <= j; i++)
{

TotalHour =+ WorkingHours;
th=Convert.ToDecimal((TotalHour).ToString(#.00));

}

Posted 2-May-18 0:55am

Member 13807871

Updated 2-May-18 1:15am

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Patrice T 2-May-18 7:31am

Show an autonomous piece of code (that we can run).
And sample input and output (with minutes)

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Jochen Arndt · Answer 1 · 2018-05-02T01:17:00

It depends on how you want the final value to be repesented. See the TimeSpan Structure (System)[^]. Use the TotalXxx() properties to get the total value as double with fractions or the other properties to get the days / hours / minutes / seconds parts as integers.

Don't work with strings. Use the numeric values for calculation and convert finally to string for output.