Change the size of a dimension array in C #

Simulate the redim Statement of Visual Basic and implement it in C #. Only one-dimensional arrays are supported. If you do not need to check the validity of the parameter, only the last four rows are required.ProgramYou can. For details, it is better to throw a rankexception or argumentexception exception when the input array is not 1-dimension (the parameter name can be specified.

1 Using System;
2
3 Static Array redim (array, Int Newlength)
4 {
5 If (Array =   Null )
6 {
7Throw NewArgumentnullexception ("Array");
8}
9 If (Array. Rank ! =   1 )
10 {
11 // Throw new rankexception ("requires a one-dimensional array. ");
12 Throw   New Argumentexception ( " A one-dimensional array is required. " , " Array " );
13 }
14 If (Newlength <   0 )
15 {
16Throw NewArgumentoutofrangeexception ("Newlength","A non-negative number is required.");
17}
18 If (Newlength = Array. length) Return Array;
19
20 Type type = Array. GetType (). getelementtype ();
21 Array newarray = Array. createinstance (type, newlength );
22 Array. Copy (array, 0 , Newarray, 0 , Math. Min (array. length, newlength ));
23 Return Newarray;
24 }

It is also interesting to see the following three constructors. I don't know if it is M $'s negligence. The parameter sequence of the constructor is inconsistent with those of the three similar exceptions, which makes people feel at a loss.

1 Public Argumentexception ( String Message, String Paramname );
2 Public Argumentnullexception ( String Paramname, String Message );
3 Public Argumentoutofrangeexception ( String Paramname, String Message );