CODEWITHSUNDEEP
asp.netvb.netarrays.net-2.0
donde
donde

Reputation: 11

Are arrays really fixed length in ASP.NET 2.0?

If I dim an array to say, 5 elements, should it not fail if I go to add a 6th? I thought this used to require a redim. In .NET 2.0, I have a character array of length = 3. When I populate it from the db, one record had 4 characters in it and it successfully added all 4 characters to the array?

Upvotes: 0

Views: 367

Answers (2)

Robert Harvey
Robert Harvey

Reputation: 180868

If you assign an array of characters to an existing array variable containing an array (of any size), it creates a new array of the size that is required. The original array is garbage collected.

char[] c = new char[3];
c = reader.ReadCharacters(5);  // read 5 characters into new array, assign to c
Debug.Print(c.Length);         // Prints 5.

Upvotes: 3

Marc
Marc

Reputation: 9354

Just to add to the current answer, in case this was the problem. In VB.NET, you declare arrays with the upper bound, not the length desired.

For example:

Dim arr(3) as Integer  'length of 4

This array has 4 elements, 0 - 3. It does not have a length of 3 as would be the case if you said this in C#:

int[] arr = new int[3];  //length of 3

I don't know if this is your issue, but just in case.

Upvotes: 2

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