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send data from a listbox to textbox

Scheduled Pinned Locked Moved Visual Basic
helpdata-structures
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  • S Offline
    S Offline
    sixecho
    wrote on last edited by
    #1

    could someone help me with this problem the error said Object reference not set to an instance of an object. Dim dd As Array Dim ee As Integer Dim tt As String ListBox1.Items.CopyTo(dd, ee) ''''error occurs here'''' tt = ee TextBox1.Text = tt

    C T 2 Replies Last reply
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    • S sixecho

      could someone help me with this problem the error said Object reference not set to an instance of an object. Dim dd As Array Dim ee As Integer Dim tt As String ListBox1.Items.CopyTo(dd, ee) ''''error occurs here'''' tt = ee TextBox1.Text = tt

      C Offline
      C Offline
      Christian Graus
      wrote on last edited by
      #2

      Well, dd is null, and ee is 0. What did you expect ?

      Christian Graus - Microsoft MVP - C++ "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

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      • S sixecho

        could someone help me with this problem the error said Object reference not set to an instance of an object. Dim dd As Array Dim ee As Integer Dim tt As String ListBox1.Items.CopyTo(dd, ee) ''''error occurs here'''' tt = ee TextBox1.Text = tt

        T Offline
        T Offline
        Tom Deketelaere
        wrote on last edited by
        #3

        use 'new' dim dd as new array

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