Getting source does not contain any data row

Help Activities
,
1

I am trying to excute an linq query :

dt2.asenumerable.where(function(row) row (“address”).tostring.contains(addressvar) and row("city).tostring.contains(cityvar) and row (“province”).tostring.contains(provincevar) and row(“zip”).tostring.contains(zipvar)).copytodatatable

dt2 : datatable where i need to check the values
and addressvar ,cityvar,province var and zip var are variables coming through an loop

i am getting the output but with also an error “source does not contain any data row”
How to solve this

2
3

It means that the LINQ query didn’t find any matching rows in your dt2 DataTable based on the conditions you specified.

So first use a if condition and then try to use the linq query something like this

revised example of your LINQ query with added checks:

If dt2 IsNot Nothing AndAlso dt2.Rows.Count > 0 
Then
   Your linq query 
Else
    ' Handle the case where 'dt2' is empty or null.
End If

Hope this helps

Cheers @Pogboom

4

there were two outputs with same values but one had spaces in it and i want to write only one not duplicate
the error is due to any spacing ? if yes how to handle it

1 Like
5

You can delete that spaced one present in it

@Pogboom

6

how to write unique values then in a an excel i am getting duplicates

7

Can you share the sample data so i can provide the solution

@Pogboom

8

i am getting data like this :

pratap nagar , nagpur, mh,440022
pratap nagar ,nagpur ,mh,440022

i need to write only value in an excel sheet

1 Like
9

Use remove duplicates before using condition or linq

https://docs.uipath.com/activities/other/latest/workflow/remove-duplicate-rows

Hope this helps

Cheers @Pogboom

10

tried using that activity not working

11

Based on specific column to be removed the duplicates or consider the whole data table
@Pogboom

12

Fine use a assign activity and mention this expression to remove such duplicates in specific column

dt = dt.AsEnumerable().GroupBy(Function(row) row("your column name").ToString().Replace(" ", "")).Select(Function(group) group.First()).CopyToDataTable()

If it’s for entire table without any specific column

dt = dt.AsEnumerable().GroupBy(Function(row) String.Join("|", row.ItemArray.Select(Function(cell) cell.ToString().Replace(" ", "")))).Select(Function(group) group.First()).CopyToDataTable()

Cheers @Pogboom

13

whole datatable linq is looking for same data in both sheet then writing it in an new sheet with all the duplicates after that i want to remove the duplicates and proceed with further automation

14

HI you can try this @Pogboom

it will remove all the duplicates

dt.AsEnumerable().GroupBy(Function(row) String.Join(“|”, row.ItemArray.Select(Function(cell) cell.ToString().Replace(" ", “”)))).Select(Function(group) group.First()).CopyToDataTable()

you can see the input and out put

image
image1253×232 6.89 KB

15

It has removed the 2nd row
hope its worked

@Pogboom

16

Let us know if u r facing any challenges with this expression
@Pogboom

17

i tried using for entire table i am getting this error : activity type "visualbasicvalue’1’ requires compilation in order to run

18

You can try this

dt.AsEnumerable().GroupBy(Function(row) String.Join("|", row.ItemArray.Select(Function(cell) cell.ToString().Replace(" ", "")))).Select(Function(group) group.First()).CopyToDataTable()

input
image

output : -

image

19

after pasting this query in your studio you can remove the double quotes and give again then it will work

@Pogboom

20

still getting the error are the values are in .tostring only