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Type: Posts; User: lchen0729

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  1. Replies
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    2D TreeView Control

    Hi,

    We all know that ( in VB.net, for example) a TreeView control is very useful tool of representing nested data. For example, a file system is a good example of nested data structure in which...
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    381

    2d TreeView Control

    Hi,

    We all know that ( in VB.net, for example) a TreeView control is very useful tool of representing nested data. For example, a file system is a good example of nested data structure in which...
  3. Replies
    9
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    949

    VS 2017 Re: Array in a Class

    my code compiles OK.
    but it crashes when I run it. the error msg reads: "Object references not set to an instance of an object".
    Where should I create an object ?
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    949

    VS 2017 Re: Array in a Class

    Hi, Peter,

    Thanks for your response. But I still have questions.

    I defined a "Vector" Class to represent a 3D vector. And I use it to represent a point.

    To represent a 3D...
  5. Replies
    9
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    949

    VS 2017 Array in a Class

    Experts,

    A Typicality Class definition may looks likes:


    Public Class MyClass
    Private Value1 As Double
    Private Value2 As Double
    Private Value3 As Double
    ...
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