I am having trouble properly sorting my list based on the leading number. When I sort, it starts with 1, then goes to 10, 11, etc.
I am trying to sort the following in order:
1 | Text One
10 | Text Two
11 | Text Three
The method I'm trying to sort is here:
finalnoteslist = finalnoteslist.OrderBy(num => num).ToList();
System.Text.StringBuilder clipData = new System.Text.StringBuilder();
foreach (object value in finalnoteslist)
{
clipData.AppendLine(value.ToString());
}
Clipboard.Clear();
Clipboard.SetText(clipData.ToString());
MessageBox.Show(clipData.ToString() + Environment.NewLine + "NOTES COPIED TO CLIPBOARD. CONTROL + V TO PASTE IN DRAWING");
}
int CompareStringBuilders(System.Text.StringBuilder a, System.Text.StringBuilder b)
{
for (int i = 0; i < a.Length && i < b.Length; i++)
{
var comparison = a[i].CompareTo(b[i]);
if (comparison != 0)
return comparison;
}
return a.Length.CompareTo(b.Length);
}
You split each item by its seperator |
and parse the first part into a int
value. Then you sort those.
List<string> finalnoteslist = new List<string>()
{ "1 | Text One",
"10 | Text Two",
"11 | Text Three"
};
finalnoteslist = finalnoteslist.OrderBy(x => int.Parse(x.Split('|').First())).ToList();
You could use string.Split
to split and get the leading integer, which can be used to sort your list.
finalnoteslist = finalnoteslist.OrderBy(x=> int.Parse(x.Split('|')[0])).ToList();
Try this Demo
To Sort the List in-place:
List<string> strings = new List<string>()
{
"1 | Text One", "12 | Text Two", "100 | Text Three", "2 | Text Four"
};
Func<string, int> getNumber = (str) => Int32.Parse(str.Split('|').FirstOrDefault());
strings.Sort((y, x) => getNumber(y) - getNumber(x));
To Sort using Linq (creates a new List):
strings = strings.OrderBy(x => convertFunction(x)).ToList();
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.