How can I debug this LINQ query [closed] - c#

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Closed 9 years ago.
How can I debug linq query? when query is too long


Debuggen is very limited with linq. See the link #JW shown in the comment.
But in you case you could split it up. It makes it's easier to see thats going on.
var tmpLst = panelInfo.AsEnumerable()
.Where(panelModel =>
panelModel.Field<string>(modelNumberColumnName) == solution.ModelNumber)
.Select(panelModel => panelModel.Field<int>(voltageListSupportedColumnName))
.Distinct()
.ToList();
foreach(var item in tmpLst)
{
voltagesSupported.AddRange(
ModelInfoController.VoltageInfos[(uint)item]
.Select(voltage => (int)voltage)
.ToList()
}

Related

How to remove negative sign from LINQ output [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 9 years ago.
i have following linq used in my application
var FinalSubExpired = subExpired.Where(e => (DateTime.Now - Convert.ToDateTime(e.AreasOfLawTillDate)).TotalDays <= 30 ).ToList();
which returns the total days with negative values, i need to remove that negative sign from that total days. how can i do that by modifying this linq?
Please help.

var FinalSubExpired = subExpired.Where(e => Math.Abs((DateTime.Now - Convert.ToDateTime(e.AreasOfLawTillDate)).TotalDays) <= 30).ToList();
that should do the trick

try and use Math.Abs inside your Linq query, as:
var FinalSubExpired = subExpired.Where(e => (Math.Abs(DateTime.Now - Convert.ToDateTime(e.AreasOfLawTillDate)).TotalDays) <= 30 ).ToList();

check where a list entry is not 0.0 [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 9 years ago.
How to check is a List entry is not e.g. 0.0?
I just know how to check if it is 0.0 like this:
MyList.Where(a => a.Equals(0.0))
but how to check it if it's not?

To check if a list contains a number: if (myList.Contains(0.0)) ...
To check if a list does NOT contain a number: if (!myList.Contains(0.0)) ...

Mid as target of an assignment [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 9 years ago.
I try just an old VB application in c# to convert, while I've encountered this line of code:
Mid(strData, intPosition + 1, intLenght) = strValue
How can it be translated into c#?

You would have to combine Remove and Insert, something like:
strData.Remove(intPosition, intLenght).Insert(intPosition, strValue);
The above assumes that the length of strValue was equal to intLenght. If strValue might be longer, then to replicate the Mid statement, we would need to do:
strData.Remove(intPosition, intLenght)
.Insert(intPosition, strValue.Substring(0, intLenght));

How can I merge this two bits of code [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
How can I turn these two bits of code into one?
comCtrList = (from i in genOutList
join f in genAccList
on i.Contract equals f.Contract
select i.Contract).ToList();
genOutList.RemoveAll(acc => comCtrList.Contains(acc.Contract));

Do you want something like this?
genOutList= (
from i in genOutList
where !genAccList.Any(x=>x.Contract==i.Contract)
select i
).ToList();
Or
genOutList.RemoveAll(x=>genAccList.Any(i=>i.Contract==x.Contract));

List<> object in WP7 Local Database [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
How to store a List<> object in WP7 Local Database?

List<CheckBox> lcb = myListBox.Items.OfType<CheckBox>()
.Where(c => c.IsChecked == true).ToList();
I used OfType instead of Cast because OfType will work even if there a single checkbox item or all items are checkboxes.
In case to Cast it will give error if even a single item is not checkbox.

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