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Resizing arrays while preserving the existing
contents is easily done in VB using ReDim Preserve. In C++/CLI, you
have other alternatives:
- Use one of the existing .NET collections,
such as ArrayList or the generic List, that handle dynamic resizing automatically.
- If the Array has only one dimension then you can use the Array.Resize method.
- For multi-dimensional arrays, use the same logic that VB
executes behind the scenes for a ReDim Preserve:
VB:
ReDim Preserve YourArray(1, 2)
C# (assuming an integer array):
array<int, 2> ^tempReDim1 = gcnew array<int, 2>(2,3);
if (YourArray != nullptr)
{
for (int Dim0 = 0; Dim0 < YourArray->GetLength(0); Dim0++)
{
int CopyLength =
System::Math::Min(YourArray->GetLength(1),
tempReDim1->GetLength(1));
for (int Dim1 = 0; Dim1 < CopyLength;
Dim1++)
{
tempReDim1[Dim0, Dim1] = YourArray[Dim0, Dim1];
}
}
}
If you need to convert from VB.NET to C++/CLI
and you are depending on the results being reliable and accurate,
then you will want to have
Instant
C++
VB Edition, the best VB.NET to C++ converter, at your
fingertips.
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