How to get the current week starting date and add it to a combo box?

Question

I\'m attempting to recreate a time sheet built on asp and I can\'t figure out how to get the current weeks starting date \"6-13-2010\" and have it populate a combo box can you h

Answer 1

Here's an example that uses an iterator.

    /// 

    /// Gets the dates that mark the beginning of each week from the specified start date until today.
    /// 
    /// The day of the week that marks the beginning of a week
    /// A date that determines the earliest week in the result.
    /// 
    public IEnumerable GetWeeks(DayOfWeek weekStart, DateTime startDate)
    {
        DateTime current = DateTime.Today.AddDays(weekStart - DateTime.Today.DayOfWeek);
        while(current >= startDate)
        {
            yield return current;

            // move to the previous week
            current = current.AddDays(-7);
        }
    }

    public void PopulateUI()
    {
        // in this example, Monday is considered the start of the week,
        // and the drop down list will be populated with the date of each monday starting with this week going back to 1 year ago.
        ddlWeeks.DataSource = GetWeeks(DayOfWeek.Monday, DateTime.Today.AddYears(-1));
    }

You mentioned that you're pretty new to C#, so sorry if it seems confusing. Below is an alternative GetWeeks function that is not defined as an iterator.

    public List GetWeeks(DayOfWeek weekStart, DateTime startDate)
    {
        List result = new List();

        DateTime current = DateTime.Today.AddDays(weekStart - DateTime.Today.DayOfWeek);
        while (current >= startDate)
        {
            result.Add(current);

            // move to the previous week
            current = current.AddDays(-7);
        }

        return result;
    }