Linq query converting to bool? [closed] - c#

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How Can I get a bool back from the below linq query? I need to compare each deal target property and totalDealsCompleted property and if any deal targets are less than the total deals completed then set HasEachTeamMemberHitTarget to false.I get a an error when building the below code on the if statment. I'm doing this in c#, mvc.
for (int i = 0; i < this.Select(m => m.EmployeeID).Count(); i++)
{
if (this.Select (m => m.DealTarget < m.TotalDealsCompleted))
{
HasEachTeamMemberHitTarget = false;
break;
}
else
{
HasEachTeamMemberHitTarget = true;
}
}


Is this what you want?
HasEachTeamMemberHitTarget = this.All(m => m.DealTarget < m.TotalDealsCompleted);

Related

Read condition of a loop while C# [closed]

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I can't read the condition in the while ... it should start with: until the i is equal to..., and then I don't understand.
private int[] array1;
private int[] array2;
private int index;
private bool scale;
for (int i = 0; i <= 100; i++)
{
while (i == (scale ? array1[index] : array1[index]))
{
}
}
How should I read the while condition completely?
Thanks in advance.

? mean is true or false.
scale is true -> send array1[index]
scale is false -> send array2[index]

Convert Instagram Id to Url Segment [closed]

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Currently, I am trying to convert coffee script from there https://github.com/slang800/instagram-id-to-url-segment to C# but I am unable to convert because I have less exp in coffee script. What I need to do is simple but I am unable to guess the algo. If id is 1038059720608660215 then value should be 5n7dDmhTr3. The complete code of algo is available at github.

Try this
static void Main(string[] args)
{
string[] convert = {
"A","B","C","D","E","F","G","H","I","J",
"K","L","M","N","O","P","Q","R","S","T",
"U","V","W","X","Y","Z","a","b","c","d",
"e","f","g","h","i","j","k","l","m","n",
"o","p","q","r","s","t","u","v","w","x",
"y","z","0","1","2","3","4","5","6","7",
"8","9","-","_"
};
Int64 input = 1038059720608660215;
string output = "";
for (int i = 9; i >= 0; i--)
{
long digit = (input >> (6 * i)) & 0x3F;
output += convert[digit];
}
Console.WriteLine(output);
Console.ReadLine();
}

Detecting array change in linq [closed]

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Getting a byte array like this [0,0,0,0,0,1,1,1,1,3,3,3,3,0,0,0,0,0]
Does anyone know how to detect a change from 1 to 3 efficiently in linq?

Why Linq? you could achieve this with simple loop.
int previous = array[0];
for(int i=1;i< array.Length;i++)
{
if(Math.Abs(array[i]- previous) > 1) // use appropriate jump
{
//logic
}
previous = array[i];
}
If you are looking for Linq solution, you could do this.
int previous = array[0];
array.FirstOrDefault(x=>
{
var retValue = Math.Abs(x- previous) > 1;
previous = x;
return retValue;
});

If you want to find all change-indexes in the most efficient way:
List<int> changeIndexes = new List<int>();
for(int i = 1; i < array.Length; i++)
if(array[i] != array[i-1])
changeIndexes.Add(i);
Linq is not the best tool when it comes to indexes.
If you want to find only the index where 1 changes to 3 modify the condition accordingly:
if(array[i] == 3 && array[i-1] == 1) ... // break the loop if you only want to find the first

Is it possible in c# to do math with file names that contain numbers? [closed]

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Is it possible in c# to do math with file names that contain numbers? (i.e. change
file name : "c:\123.img" to "c:\127.img"?

This should be enough to get you started:
var files = Directory.GetFiles(path);
foreach (var f in files)
{
var info = new FileInfo(f);
var name = info.Name.Split('.')[0];
var extension = info.Name.Split('.')[1];
int i;
if (int.TryParse(name, out i))
{
File.Move(info.FullName, string.Format(#"{0}\{1}.{2}", path, i + 5, extension));
}
}

Autonumber with alternating number and letters [closed]

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I want an auto-numbering class in c# which would generate numbers of 8 digit length in the following format i.e. 1A2B3C4D..one number followed by one letter.Any suggestions??

Pseudocode for generating such string:
String result = "";
for ( int i = 0; i < 8 ; i++)
{
if ( i % 2 == 0)
{
// random(a,b) returns random value between or equal to a-b
result.append(random(0,9).toString());
}
else
{
result.append(random(65,90).toChar()); // Generating a random value between 65-90 (A-Z in ascii)
}
}
Edit:
Or as Sayse suggested:
String result = "";
for (int i = 0; i< 4; i++)
{
result.append(random(0,9).toString());
result.append(random(65-90).toChar());
}

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