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ssrs - How do I pass multi-value Date parameter to the VB.net 'code' section and return the earliest date selected?

Posted on 2014-01-05
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Last Modified: 2014-01-06
Hi Experts,

I have a muti-value selection list where I want to find the earliest and latest date of the selection list. I believe I will need to do this by passing parameters to the VB.Net "code" to return the two values to me expression.

There is a maximum of 4 dates in this selection list.  
The selections are 'Today', '-1month', '-2months', '>-3months'.
E.g. Parameters will send the actual date. ('07/01/2014', '07/12/2013', '07/11/2013')

As it is a multi-select the parameter can contain 1 to 4 date items.

Is there a VB.net function I could use to do this. I am not a VB.Net programmer so this part is a little difficult to do for me.

Let me know how I should do this I expect I will need to use a loop to read the items into an array? How should I declare etc?

Many thanks for your help.
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Question by:Papa1NZ
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2 Comments
 
LVL 13

Accepted Solution

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Jesus Rodriguez earned 2000 total points
ID: 39760614
You can use List.Sort for it...This is the example on vb.net

        Dim WholeParameters As String = "07/01/2014, 07/12/2013, 07/11/2013"
        Dim List As New List(Of Date)
        For Each DayDate As String In WholeParameters.Split(",")
            List.Add(CDate(DayDate))
        Next
        List.Sort()
        MsgBox(List(0).ToString("MM/dd/yyyy") + " " + List(1).ToString("MM/dd/yyyy") + " " + List(2).ToString("MM/dd/yyyy"))

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On the first element you will have the smallest and on the last you will have the greatest
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LVL 13

Expert Comment

by:Jesus Rodriguez
ID: 39760627
Just in case that you use the apostrophes on your list
 Dim WholeParameters As String = "'07/01/2014','07/12/2013','07/11/2013'"
        Dim List As New List(Of Date)
        For Each DayDate As String In WholeParameters.Split(",")
            List.Add(CDate(Replace(DayDate, "'", "")))
        Next
        List.Sort()
        MsgBox(List(0).ToString("MM/dd/yyyy") + " " + List(1).ToString("MM/dd/yyyy") + " " + List(2).ToString("MM/dd/yyyy"))

Open in new window

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