protected void DDLFromDataBind(object sender, EventArgs e)
{
FromYearsDDL.DataSource = FromYears;
FromYearsDDL.DataValueField = "Key";
FromYearsDDL.DataTextField = "Key";
FromYearsDDL.SelectedValue = FromYears.FirstOrDefault(y => y.Value).Key;
}
protected void DDLFromSelectedIndexChanged(object sender, EventArgs e)
{
//update the FromYear Dictionary
var tempDictionary = FromYears.ToDictionary(fromYear => fromYear.Key, fromYear => fromYear.Key.Equals(FromYearsDDL.SelectedValue));
FromYears = tempDictionary;
//Call Bind on the ToYear DDL
ToYearsDDL.DataBind();
//do my other update stuff here
FromLabel.Text = FromYearsDDL.SelectedValue;
ToLabel.Text = ToYearsDDL.SelectedValue;
}
private void InitToYears()
{
ToYears = new Dictionary <string, bool>();
//get the selected FromYear Value
int minToYear = Convert.ToInt32(FromYears.FirstOrDefault(dict => dict.Value).Key);
//make sure ToYears is at least FromYears
if (minToYear < Convert.ToInt32(FromYears.Min(k => k.Key)))
{
minToYear = Convert.ToInt32(FromYears.Min(k => k.Key));
}
IEnumerable <int> toRange = Enumerable.Range(minToYear, MaxYear - minToYear);
foreach (var toYear in toRange)
{
ToYears.Add(toYear.ToString(), toYear == (DateTime.Now.Year + 2));
}
}
