Question

我申请与档案一起工作。它需要同时处理档案。我正在使用<代码>ArrayList储存数据。这部法律造成了问题:

Dim fileData As ArrayList = Nothing  
Dim temp As Char = Nothing  
While Not EOF(open_file_number)  
    Input(open_file_number, temp)  
    fileData.Add(temp)  
End While

The line of code that is throwing the Null Reference Exception is where I (attempt to) assign the value of temp to a new element in the fileData ArrayList. Anybody have an idea of what s going on here? Thanks

Answer 1

http://www.un.org/Depts/DGACM/index_chinese.htm 增加。引证新情况:

Dim fileData As New ArrayList

Answer 2

你们需要做的是改变以下路线:

Dim temp As Char = Nothing

:

Dim temp as Char =

http://www.ohchr.org。我在“强硬变量”方面经历过同样的情况,并ten开同样的问题。

Dim s as String = nothing

results in a NULL pointer when attempting to assign a value to s .

Dim s as string = String.empty

不详。

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