new-operator

Consider the following code: public abstract class Test1 { public object Data { get; set; } } public abstract class Test2<T> : Test1 { public T Data { get; set; } } This will generate the following warning: 'Test2.Data' hides inherited member 'Test1.Data'. Use the new keyword if hiding was intended. Why is this only a warning and what effect will adding the "new" keyword have? According to my testing I cannot find any difference once the "new" keyword is added. Don't get me wrong, I'm all for being explicit, but I was curious as to the benefit of adding "new". My only thoughts on what it might

Quick question regarding memory management in C++ If I do the following operation: pointer = new char [strlen(someinput_input)+1]; And then perform it again, with perhaps a different result being returned from strlen(someinput_input) . Does this result in memory being left allocated from the previous " new " statement? As in, is each new statement receiving another block of HEAP memory from the OS, or is it simply reallocating? Assuming I do a final delete pointer[]; will that deallocate any and all memory that I ever allocated via new to that pointer? Every call to new must be matched with a

Here's the problem, which only occurs in Internet Explorer (IE) . I have a page that has links to several different types of files. Links from these files execute a Javascript function that opens a new window and loads the specific file. This works great, unless the file I need to open in the new window is a PDF in which case the window is blank, even though the URL is in the address field. Refreshing that window using F5 doesn't help. However, if I put the cursor in the address field and press <enter> the PDF loads right up. This problem only occurs in IE. I have seen it in IE 7 and 8 and am

I found a code to reverse CRC32 but I don't know how it works, because im not that good in programming, I just started. I just want to compare 2 files, the old and the new one, then in the new fix the CRC32 adding 4 bytes at the end of the file, so the 2 files will have the same CRC32. Here is the code, is in C#: public class Crc32 { public const uint poly = 0xedb88320; public const uint startxor = 0xffffffff; static uint[] table = null; static uint[] revtable = null; public void FixChecksum(byte[] bytes, int length, int fixpos, uint wantcrc) { if (fixpos + 4 > length) return; uint crc =

I'm trying to create a new record of Person thru my App. I have the name, email and phone nr. How can i pass them to the modal view of newPerson? I'm following Apple's docs, but i'm stuck. I'm using a ABNewPersonViewController. Is that correct? How do I fill the fields in the modal view? Thanks, RL Jason Coco If you want to display something in the ABNewPersonViewController, you have to create and set up an ABRecordRef for the properties you want to pre-fill and then set the displayedPerson property on ABNewPersonViewController. So a simple example may be: - (void)createNewPerson { // Create

I am in need of adding an item of type IVehicle which is injected at runtime from constructor to a for loop. IVehicle vehicle; for (int i=0;i<=someValue;i++) { list.insert(i,vehicle); //some processing to assign values } now because Ivehicle is already injected by this time, my list has same value despite the value on view different and coming through the controller. How can I new up this object everytime EDIT The best way to new up this object everytime I found was to request new from the kernel that was injecting it. I am using Ninject as said earlier. All I did was use a create a variable