CODEWITHSUNDEEP
c#asp.netlinq
jmasterx
jmasterx

Reputation: 54133

Sorted dynamic list is read only?

I have a dynamic list that I try to sort then change the id based on the new sort order:

foreach (Case c in cases)
{
    bool edit = true;

    if (c.IsLocked.HasValue)
        edit = !c.IsLocked.Value;

    eventList.Add(new {
        id = row.ToString(),
        realid = "c" + c.CaseID.ToString(),
        title = c.CaseTitle + "-" + c.Customer.CustomerDescription,
        start = ResolveStartDate(StartDate(c.Schedule.DateFrom.Value.AddSeconds(row))),
        end = ResolveEndDate(StartDate(c.Schedule.DateFrom.Value), c.Schedule.Hours.Value),
        description = c.CaseDescription,
        allDay = false,
        resource = c.Schedule.EmployeID.ToString(),
        editable = edit,
        color = ColorConversion.HexConverter(System.Drawing.Color.FromArgb(c.Color.Value))
    });

    row++;

}

var sortedList = eventList.OrderBy(p => p.title);

for (int i = 0; i < sortedList.Count(); ++i)
{
    sortedList.ElementAt(i).id = i.ToString();
}

But it crashes on sortedList.ElementAt(i).id = i.ToString(); stating that it is read only?

Property or indexer <>f__AnonymousType4<string, string,string,string,string,string,bool,string,bool,string>.id cannot be assigned to -- it is read only

How can I change the ids?

Thanks

Upvotes: 4

Views: 273

Answers (1)

D Stanley
D Stanley

Reputation: 152596

As mentioned you cannot update an anonymous type, however you can modify your process to use one query that orders the items first and includes the index of the item as a parameter to the Select:

var query = cases.OrderBy(c => c.CaseTitle + "-" + c.Customer.CustomerDescription)
                 .Select( (c, i) =>
                    new {
                            id = i.ToString(),
                            realid = "c" + c.CaseID.ToString(),
                            title = c.CaseTitle + "-" + c.Customer.CustomerDescription,
                            start = ResolveStartDate(StartDate(c.Schedule.DateFrom.Value.AddSeconds(i))),
                            end = ResolveEndDate(StartDate(c.Schedule.DateFrom.Value), c.Schedule.Hours.Value),
                            description = c.CaseDescription,
                            allDay = false,
                            resource = c.Schedule.EmployeID.ToString(),
                            editable = c.IsLocked.HasValue ? !c.IsLocked.Value : true ,
                            color = ColorConversion.HexConverter(System.Drawing.Color.FromArgb(c.Color.Value))
                        }
                   );

Upvotes: 5

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