SortByName() is a BubbleSort Algorithm to sort the StringArray content alphabetically.
It uses the String Method CompareTo(). This method compares the ASCII numbers and
returns 1 if the name is "higher" and swaps it with the compared name, 0 if it´s equal
and -1 if it´s lower, which means sorted in this case.
It is implemented as a class method for class-intern string arrays.
Here is some sampledata for your Program Main() to see how this is working:
Snippet snip = new Snippet();
snip.StringArray = new string[5];
snip.StringArray[0] = "A";
snip.StringArray[1] = "C";
snip.StringArray[2] = "Z";
snip.StringArray[3] = "I";
snip.StringArray[4] = "B";
snip.ShowAll();
snip.SortByName();
snip.ShowAll();
Console.ReadKey();
class Snippet
{
// Your class string Array. You need it to get this running.
public string[] StringArray {get; set;}
// SortByName() is a BubbleSort Algorithm to sort the Person names alphabetically.
// It uses String Method CompareTo(). This method compares the ASCII numbers and
// returns 1 if the name is "higher" and swaps it with the compared name, 0 if it´s equal
// and -1 if it´s lower, which means sorted in this case.
//
public void SortByName()
{
string[] help = new string[1];
for (int i = 0; i < StringArray.Length - 1; i++)
{
for (int j = i + 1; j < StringArray.Length; j++)
{
if (StringArray[i].CompareTo(StringArray[j]) > 0)
{
help[0] = StringArray[i];
StringArray[i] = StringArray[j];
StringArray[j] = help[0];
}
}
}
}
// This Method is just there to show the results on the Console Display
public void ShowAll()
{
foreach (string element in StringArray)
{
Console.Write(element.ToString() + " ");
}
Console.WriteLine();
}
}
Kommentare zum Snippet