僅在運行程序時出現錯誤，僅作爲獨立C＃

Question

僅在一個特定數組上調整數組的大小以及程序在VS想法之外運行時發生錯誤。當我編譯並運行時，不會出現任何描述錯誤。

這裏是「exeption」的細節

See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box. 

************** Exception Text ************** 
System.NullReferenceException: Object reference not set to an instance of an object. 
    at BWING.MAINW.ResizeArray(Array arr, Int32[] newSizes) in c:\Users\FFA\Documents\BWING\ENG\BWING\BWING\MAINW.cs:line 583 
    at BWING.MAINW.MAINW_Load(Object sender, EventArgs e) in c:\Users\FFA\Documents\BWING\ENG\BWING\BWING\MAINW.cs:line 145 
    at System.Windows.Forms.Form.OnLoad(EventArgs e) 
    at System.Windows.Forms.Form.OnCreateControl() 
    at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible) 
    at System.Windows.Forms.Control.CreateControl() 
    at System.Windows.Forms.Control.WmShowWindow(Message& m) 
    at System.Windows.Forms.Control.WndProc(Message& m) 
    at System.Windows.Forms.ScrollableControl.WndProc(Message& m) 
    at System.Windows.Forms.ContainerControl.WndProc(Message& m) 
    at System.Windows.Forms.Form.WmShowWindow(Message& m) 
    at System.Windows.Forms.Form.WndProc(Message& m) 
    at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) 
    at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) 
    at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) 


************** Loaded Assemblies ************** 
mscorlib 
    Assembly Version: 4.0.0.0 
    Win32 Version: 4.0.30319.17929 built by: FX45RTMREL 
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll 
---------------------------------------- 
BWING 
    Assembly Version: 1.0.0.0 
    Win32 Version: 1.0.0.0 
    CodeBase: file:///C:/Users/FFA/Documents/BWING/ENG/BWING/BWING/bin/Debug/BWING.exe 
---------------------------------------- 
System.Windows.Forms 
    Assembly Version: 4.0.0.0 
    Win32 Version: 4.0.30319.17929 built by: FX45RTMREL 
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll 
---------------------------------------- 
System.Drawing 
    Assembly Version: 4.0.0.0 
    Win32 Version: 4.0.30319.17929 built by: FX45RTMREL 
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll 
---------------------------------------- 
System 
    Assembly Version: 4.0.0.0 
    Win32 Version: 4.0.30319.17929 built by: FX45RTMREL 
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll 
---------------------------------------- 

************** JIT Debugging ************** 
To enable just-in-time (JIT) debugging, the .config file for this 
application or computer (machine.config) must have the 
jitDebugging value set in the system.windows.forms section. 
The application must also be compiled with debugging 
enabled. 

For example: 

<configuration> 
    <system.windows.forms jitDebugging="true" /> 
</configuration> 

When JIT debugging is enabled, any unhandled exception 
will be sent to the JIT debugger registered on the computer 
rather than be handled by this dialog box. 

這裏是意圖調整陣列的代碼：

ResizeArray(zbuffer, new int[] {xdisplay}); 

，這裏是我從網上獲取的方法來調整陣列：

private static Array ResizeArray(Array arr, int[] newSizes) 
{ 
    if (newSizes.Length != arr.Rank) 
     throw new ArgumentException("arr must have the same number of dimensions " + 
            "as there are elements in newSizes", "newSizes"); 

    var temp = Array.CreateInstance(arr.GetType().GetElementType(), newSizes); 
    int length = arr.Length <= temp.Length ? arr.Length : temp.Length; 
    Array.ConstrainedCopy(arr, 0, temp, 0, length); 
    return temp; 
} 

這從來沒有發生過我，我不認爲這是可能的。

Answer 1

嘗試添加下面幾行：

private static Array ResizeArray(Array arr, int[] newSizes) 
{ 
    // Add next four lines 
    if (newSizes == null) 
     throw new ArgumentNullException("newSizes is null!"); 
    if (arr == null) 
     throw new ArgumentNullException("arr is null!"); 
    if (newSizes.Length != arr.Rank) 
     throw new ArgumentException("arr must have the same number of dimensions " + 
            "as there are elements in newSizes", "newSizes"); 

    var temp = Array.CreateInstance(arr.GetType().GetElementType(), newSizes); 
    int length = arr.Length <= temp.Length ? arr.Length : temp.Length; 
    Array.ConstrainedCopy(arr, 0, temp, 0, length); 
    return temp; 
}