Adding Custom Code in SSRS Chart Report

• shilpadixit

  SSC Rookie

  Points: 47

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  March 5, 2009 at 10:09 pm

  #201995

  Hi

  I am working on SSRS chart report.I am trying to add Custom color palatte to report

  For this i am using below code

  Private colorPalette As String() = {"Green", "Blue", "Red", "Orange",

  "Aqua", "Teal", "Gold", "RoyalBlue", "MistyRose", "LightGreen",

  "LemonChiffon", "LightSteelBlue", "#F1E7D6", "#E16C56", "#CFBA9B"}

  Private count As Integer = 0

  Private mapping As New System.Collections.Hashtable()

  Public Function GetColor(ByVal groupingValue As String) As String

  If mapping.ContainsKey(groupingValue) Then

  Return mapping(groupingValue)

  End If

  Dim c As String = colorPalette(count Mod colorPalette.Length)

  count = count + 1

  mapping.Add(groupingValue, c)

  Return c

  End Function

  I copied it from below MSDN link

  http://msdn.microsoft.com/en-us/library/aa964128.aspx

  Code is giving below error

  [BC42104] Variable 'c' is used before it has been assigned a value. A null reference exception could result at runtime.

  Please help me to rectify this.