need to pass one column in Lookupset and I am doing as below
="Billing Code: "+Code.JoinDistinct(LookupSet(Fields!BillingCode.Value, Fields!BillingCode.Value, Fields!BillingCode.Value, "DataSet1"),",")
and the Function is
public shared function JoinDistinct(
dups as object(),
delimiter as string
) as string
dim result as string = ""
system.array.sort(dups)
for i as integer = 0 to dups.length - 1
if i <> 0 then result += delimiter
if i = 0 orElse dups(i) <> dups(i-1) then result += dups(i)
next i
return result
end function
Result
Billing Code: ,,,A,,,,,,
How Can I remove extra commas
What you're trying to do is certainly possible, but requires a bit of a workaround. The Join function is designed to work on an array of values. The column you used, even though it may have multiple rows at that scope, is not an array. You can use the LookupSet function to get the rows as an array and pass them into the Join function. If there may be duplicate values that you want to remove, you'll have to add custom code to handle that.
Here's an example of how to do that: https://stackoverflow.com/a/27141955/2033717
Let me know if this answers your question.
Related
I'm trying to modify a report that uses a multi value parameter (a|b|c|d). That parameter is split into multiple columns. The expression on the first column is =Split(Fields!AlternateVendorDetails.Value.ToString(),"|")(0). If that field is blank in the query, the field in the column is blank, which is right. However, the other columns evaluate to an error (=Split(Fields!AlternateVendorDetails.Value.ToString(),"|")(1)). I've tried =IIF(Fields!AlternateVendorDetails.Value.ToString()='','',Split(Fields!AlternateVendorDetails.Value.ToString(),"|")(1)), and I'm not sure what else will work.
SSRS evaluates expressions even when using Iif conditions and that causes the error.
You need custom code to overcome the limitation.
You can create a function that takes the string, the delimiter and array item index, and returns the value if string is not empty and value index exists
Public Function GetArrayItem( s As String, d As String, i As Integer) As String
If s = "" Or Split(s, d).Length < i+1 Then
Return Nothing
Else
Return Split(s, d)(i)
End If
End Function
I ended up putting a COALESCE(value1 | value2 | value3,' | | ') in the query. That created the necessary fillers to set the values to blank.
I have a field in SQL Server that contains an comma separated list. Here are 2 examples:
select 'ex1,ex2,ex3' as str union all
select 'ax1,ax2'
In my report, I have to transform all of these values (5 in this case) using a function. In this question I will use Trim, but in actuality we are using another custom made function with the same scope.
I know how I can split every value from the string and recombine them:
=Join(Split(Fields!str.Value,","),", ")
This works great. However, I need to execute a function before I recombine the values. I thought that this would work:
=Join( Trim(Split(Fields!VRN.Value,",")) ,", ")
However, this just gives me an error:
Value of type '1-dimensional array of String' cannot be converted to 'String'. (rsCompilerErrorInExpression)
I can't personally change the function that we use.
How do I use an extra function when dealing with both an split and a join?
You can use custom code to include all the logic (Split->Custom Code->Join).
Make adjustments inside the loop to call your custom function instead of trim
Public Function fixString (ByVal s As String) As String
Dim mystring() As String
mystring = s.Split(",")
For index As Integer = 0 To mystring.Length-1
mystring(index) = Trim(mystring(index))
Next
Return Join(mystring, ",")
End Function
To call the custom code use the following expression
Code.fixString( Fields!VRN.Value )
In my Access query, I have the query using a VBA function to figure the value that goes in the query field.
In the form, if the stringval textbox has a value, then I want to compute it, but if not, it should remain empty (null).
Function GetValue(stringval, numval)
Dim result
stringval= stringval & ""
result= IIf(stringval<> "", numval* 1.5, Null)
GetValue = Int(result)
End Function
Now, I have a form that uses this query, and on the form is a textbox that displays the query value. I want the value to be formatted with commas in the numbers for easy reading. Everything I've tried so far does not show any commas.
I've tried:
used Standard for the Format > Formatfor the textbox (in properties)
putting #,###.### in the textbox Format value
putting #,##0.0## in the textbox Format value
changing Data > Text Format but it only gives me Plain Text and Rich Text - no option for numbers.
returning a double from the function
Note: if I don't use a custom VBA function, and write the formula directly into the query, then it does display commas. But when I move the formula into the function then the commas are lost.
What do I do?
[update]
I tried Gustav's solutions and since they didn't work for me, I added those as items to my "what I've tried" list above.
Also, if I look at the query in datasheet view, the number values sort alphabetically instead of by the size of the value. When I used the forumulae directly in the query instead of using functions, it sorted by the value of the number. I hope this is a clue.
Numbers carries no format. A format is applied when displayed only.
But be sure to return a Double if not Null:
Function GetValue(stringval, numval)
Dim result
If stringval & "" <> "" Then
result = Int(CDbl(numval) * 1.5)
Else
result = Null
End If
GetValue = result
End Function
Then apply your Format to the textbox
#,##0.0##
Or force a formatted string to be returned:
If stringval & "" <> "" Then
result = Format(Int(CDbl(numval) * 1.5), "#,##0.0##")
Else
result = Null
End If
and skip formatting of the textbox.
The solution is this: the function has to be declared as a double.
That allows the query's datasheet view to know it is displaying numbers - and so you can set the field's format to Standard for the comma to display. This also allows the form to know it has a number and it will display the comma there, too. I knew it had to do with double, but didn't realize before that the function needed to be declared as such.
Function GetValue(stringval, numval) as double '<----THIS!!!!
Dim result
If stringval & "" <> "" Then
result = numval * 1.5
Else
result = 0 `<--can't return null here; use nz function in control source for textbox
End If
GetValue = int(result) 'to remove decimals
End Function
The problem I was having was in some of my functions I need to return double or null, because I wanted textboxes to remain blank if they contained no data. Now, at least I know how to make the numbers generated by functions to display commas.
And here is how to deal with the fact that you can't return null as the value of a double. The function is originally from here.
Put this function in a module so it is public, and then in the control source for the textbox, instead of just putting the field value, put Zn(fieldvalue). This works like a charm (although using functions in the control source seems to have a delay on the form display). This way you can keep the underlying value as a double and still get commas to display in both the form and the query whilst keeping the field blank if necessary.
Public Function Zn(pvar)
' Return null if input is zero or ""
If IsNull(pvar) Then
Zn = Null
ElseIf IsNumeric(pvar) Then
If pvar = 0 Then
Zn = Null
Else
Zn = pvar
End If
Else
If Len(pvar) = 0 Then
Zn = Null
Else
Zn = pvar
End If
End If
End Function
After applying the unpivot procedure, I have an Amount column that has blanks and other characters ( like "-"). I would like to convert those non-numberic values to zero. I use replace procedure but it only converts one at the time.
Also, I tried to use the following script
/**
Public Overrides Sub Input()_ProcessInputRows(ByVal Row As Input()Buffer)
If Row.ColumnName_IsNull = False Or Row.ColumnName = "" Then
Dim pattern As String = String.Empty
Dim r As Regex = Nothing
pattern = "[^0-9]"
r = New Regex(pattern, RegexOptions.Compiled)
Row.ColumnName = Regex.Replace(Row.ColumnName, pattern, "")
End If
End Sub
**/
but i'm getting error.I don't much about script so maybe I placed in the wrong place. The bottom line is that I need to convert those non-numberic values.
Thank you in advance for your help.
I generally look at regular expressions as a great way to introduce another problem into an existing one.
What I did to simulate your problem was to write a select statement that added 5 rows. 2 with valid numbers, the rest were an empty string, string with spaces and one with a hyphen.
I then wired it up to a Script Component and set the column as read/write
The script I used is as follows. I verified there was a value there and if so, I attempted to convert the value to an integer. If that failed, then I assigned it zero. VB is not my strong suit so if this could have been done more elegantly, please edit my script.
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
' Ensure we have data to work with
If Not Row.ColumnName_IsNull Then
' Test whether it's a number or not
' TryCast doesn't work with value types so I'm going the lazy route
Try
' Cast to an integer and then back to string because
' my vb is weak
Row.ColumnName = CStr(CType(Row.ColumnName, Integer))
Catch ex As Exception
Row.ColumnName = 0
End Try
End If
End Sub
I am using rdlc report, i have a column in database which i want to display in the report.
vehicleDamageArea=1,2,3
In the report I need to mark the placeholders with these values.
=iif((Fields!vehicleDamageArea.Value="3"),Chr(253),Chr(168)) like this.
But as we know,it will check the whole value 1,2,3="3" not the splitted values.
Any suggestion to check by splitting the vehicleDamageArea parameter.
I made it to work as below
Public Shared Function CheckValue(ByVal InString As String,ByVal input as String) As Char
Dim output As String = String.Empty
Dim Parts() As String = InString.ToString().Split(",")
For i As Integer = 0 To Parts.Length - 1
If Parts(i) = input Then
output = Chr(0120)
Exit For
Else
output = Chr(0111)
End If
Next i
Return output
End Function
You can get the individual values using the split function in reporting services. It returns a zero-based string array, so for your example you need
=Split(First(Fields!ID.Value),",")(2)
You should make a function that accept a comma separated expression, than process this string and return a Boolean, then call this function as for boolean value.