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Convert any object to a byte[]
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checkout this article :http://www.morgantechspace.com/2013/08/convert-object-to-byte-array-and-vice.html
Use the below code
// Convert an object to a byte array
private byte[] ObjectToByteArray(Object obj)
{
if(obj == null)
return null;
BinaryFormatter bf = new Binar...
Type of conditional expression cannot be determined because there is no implicit conversion between
... spec:
If only one of x and y has a type, and both x and y are implicitly convertible to that type, then that is the type of the conditional expression.
The issue here is that in
int? number = true ? 5 : null;
only one of the conditional results has a type. Here x is an int literal, and y is null...
How do you convert a DataTable into a generic list?
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how to convert this list to json.
– ACP
Aug 14 '10 at 5:50
6
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Way to go from recursion to iteration
...sion where the last statement is the recursive call). Once you have that, converting it to iteration is generally pretty easy.
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What is array to pointer decay?
...rrays are basically the same as pointers in C/C++, but not quite. Once you convert an array:
const int a[] = { 2, 3, 5, 7, 11 };
into a pointer (which works without casting, and therefore can happen unexpectedly in some cases):
const int* p = a;
you lose the ability of the sizeof operator to c...
Delegates: Predicate vs. Action vs. Func
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There's also System.Converter<TInput, TOutput>, though it's rarely used.
– G-Wiz
Jan 4 '10 at 23:03
4
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convert an enum to another type of enum
...n many developers giving up to the urge of using integer value of enums to convert them but this is very error prone. The old school method of writing 2 functions has proven its worth over time...
– Hemant
Nov 30 '09 at 6:33
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Select random row from a sqlite table
...gt; select count(*) from payment;
16049
Run Time: real 0.000 user 0.000140 sys 0.000117
sqlite> select payment_id from payment limit 1 offset abs(random()) % (select count(*) from payment);
14746
Run Time: real 0.002 user 0.000899 sys 0.000132
sqlite> select payment_id from payment limit 1 of...
What do the python file extensions, .pyc .pyd .pyo stand for?
...mode, without a console; executed with pythonw.exe
.pyx - Cython src to be converted to C/C++
.pyd - Python script made as a Windows DLL
.pxd - Cython script which is equivalent to a C/C++ header
.pxi - MyPy stub
.pyi - Stub file (PEP 484)
.pyz - Python script archive (PEP 441); this is a script con...
Execute Insert command and return inserted Id in Sql
...AddWithValue("@occ", Mem_Occ);
con.Open();
int modified = Convert.ToInt32(cmd.ExecuteScalar());
if (con.State == System.Data.ConnectionState.Open) con.Close();
return modified;
}
}
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