All Questions
3,061
questions
0
votes
1
answer
82
views
Using Linq to select multiple values with reflection VB.NET
I'm experimenting with some LINQ in which I'd like my filters to be dynamically loaded at run time and for the result set to be returned as a 2d list of:
Type
Link
Google
[email protected]
...
- 183
0
votes
2
answers
60
views
linq join two datatables
I am trying to join two datatables with linq
The query is
out_dt = (From row1 in dt1, row2 in dt2
where row1("id").ToString = row2("id").ToString
Select row1).CopyToDatatable
...
- 47
0
votes
0
answers
92
views
HOW to generate SQL TRANSFORM, INNER JOIN and GROUP BY with database MS ACCESS IN VB.NET
I'm trying to generate SQL TRANSFORM, INNER JOIN and GROUP BY with database MS ACCESS in VB.NET.
I don't want to use functions in MS Access because I use SQL for VB.NET.
Is there any other method? ...
- 71
0
votes
0
answers
36
views
For Loop through filtered datatable using LINQ Select Clause?
Is it possible to loop through a filtered data table and update the items as needed?
In my 'For i As..Next' loop, I want to check the value of a specific column in the next row and if they're not ...
0
votes
0
answers
154
views
Find the coordinates of the image of the sample in the large image in the shortest time
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Dim intMain() As Integer = GetRgbValues(picMain.Image)
Dim intTemp() As Integer = GetRgbValues(picTemp....
0
votes
0
answers
46
views
VB.net Nested 'For Each' Loop Slow
Can someone suggest how I can improve the performance of my nested For Each loops? This logic accepts a string variable CSV style parameter and converts it into a data table. We are adding some ...
0
votes
1
answer
46
views
Converting C# LINQ query to VB [duplicate]
I'm trying to convert a bit of code from C# to VB.NET that's looking for a specific set of class members and I've got it almost completely worked out except for a little LINQ query that uses some C# ...
- 1,070
-1
votes
2
answers
225
views
How to get the index of duplicate elements along with the range of empty elements after it. LINQ
Dim ComplexArray As String() = Split("A C A B C A B A B C")
Dim Need_result= {({"A", ({"0-2", "5-9", "16-16", "19-20"})}), (...
0
votes
1
answer
46
views
VB.NET - Can I use LINQ over a List(of String) to find strings that end with items from another List(of String)?
I have a List(of String) with some names in them. I have another List(of String) that has suffixes in them, and I was hoping I could use LINQ to pull a list of the names that end with any of the ...
2
votes
2
answers
108
views
how to query based on start and end period dates with MS ACCESS in VB.NET
I'M trying to query based on start and end period dates with MS ACCESS in VB.NET
Table ABSEN can union with table HELPERABSEN
so I want to take the start date and end date from the table PERIOD with ...
- 71
0
votes
0
answers
30
views
Detect EntityState of ALL included entities in Entity Framework query
I have a Linq query which returns related data with the .Include() method from Entity Framework (see below). My question is how would I get the EntityState of both the Companies and Addresses from ...
0
votes
1
answer
55
views
'Unable to cast the type 'System.Guid' to type 'System.Object'. LINQ to Entities only supports casting EDM primitive or enumeration types.'
In trying to retrieve info from my database using linq but it won't work. When i excecute the code it throws the exception "'Unable to cast the type 'System.Guid' to type 'System.Object'. LINQ to ...
- 1
0
votes
0
answers
74
views
Adding rows to a datatable takes too long
If reader.AsDataSet.Tables(0).Rows.Count > 0 Then
Dim DistItemslist As New List(Of Eidos)
Dim dgv As New DataGridView()
Dim dic As New Dictionary(Of String, Integer)()
Dim ...
- 111
0
votes
1
answer
35
views
why does the operator logic in Linq not match the results when the value is 0 or nothing in VB.NET
I'm Trying operator logic but in Linq not match the results when the value is 0 or nothing in VB.NET
Let STATUS = If(BLC < 24 And PRSOBNET Is Nothing, "NEED TO PRODUCE", "")
is ...
- 729
0
votes
0
answers
63
views
How can I make a linq call goes into my ObservableCollection variable
I'm having an issue with my ObservableCollection. As you can see when I try to fill up the user collection it says that it cannot be converted.
If I use a list I can make it work but then the grid won'...
- 43