Hi Expert,

I have an Excel file with two sheets and i need to validate the sum of total amount columns in both sheets Also, bot will consider to proceed with further workflow if sum of total amounts are comes with difference values of both DTs up to 0.01 to 0.99 (Plus or minus). if difference values go beyond the limit, bot will throw the exception. How can achieve this same LINQ? Here by attached same input

Validation.xlsx (10.1 KB)

```
Dim sumSheet1 As Double = dtSheet1.AsEnumerable().Sum(Function(row) Convert.ToDouble(row("Total Amount")))
Dim sumSheet2 As Double = dtSheet2.AsEnumerable().Sum(Function(row) Convert.ToDouble(row("Total Amount")))
difference=Math.Abs(sumSheet1 - sumSheet2)
```

Take if activity

difference >= 0.01 AndAlso difference <= 0.99 Then

β Proceed with the further workflow

Else

Throw New Exception(βThe difference between the total amounts is beyond the allowed limit.β)

1 Like

Try this

```
Math.Abs(DT1.AsEnumerable().Sum(Function(row) row.Field(Of Double)("Total Amount")) - DT2.AsEnumerable().Sum(Function(row) row.Field(Of Double)("Total Amount"))) <= 0.99
```

Regards,

=> Use two Read Range Workbook to read both the sheets `Sheet1`

and `Sheet2`

and store both the output in datatables `dt1`

and `dt2`

.

=> Use the below code in Invoke Code:

```
' Step 2: Calculate the sum of the "Total Amount" column for each DataTable
Dim sum1 As Double = dt1.AsEnumerable().Sum(Function(row) If(IsNumeric(row("Total Amount").ToString()), Convert.ToDouble(row("Total Amount")), 0))
Dim sum2 As Double = dt2.AsEnumerable().Sum(Function(row) If(IsNumeric(row("Total Amount").ToString()), Convert.ToDouble(row("Total Amount")), 0))
' Step 3: Compare the sums with the specified tolerance
difference = Math.Abs(sum1 - sum2)
```

Invoke Code Arguments:

=> Use the below condition in If:

```
If
difference >= 0.01 AndAlso difference <= 0.99
Then
WriteLine -> "Sums are within the acceptable range. Proceeding with the workflow."
Else
Throw Activity -> New Exception("The difference in sums exceeds the acceptable range.")
```

**FLOW:**

**XAML:**

Main.xaml (11.3 KB)

**VARIABLE DATATYPE:**

Regards

@rlgandu Thank You very much for your kind help on this.

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