I have a List that contains items, for example:
1) https:\\10.12.23\\
2) https:\\12.23.12.25\\
3) https:\\localhost\
4) https:\\12.25.12.2\\
5) https:\\12.36.12.22\\
6) https:\\12.88.12.32\\
The List is bound to a DataGridView as follows:
MyDataGridView.DataSource = MyList;
I want the item https:\\localhost\ to be on the top. How can I achieve this?
You need to sort the list before binding it.
List<string> items = new List<string>();
List<string> sortedItems = items
.OrderByDescending<string, string>(i => i)
.ToList<string>();
This is a very basic example. There is also an OrderBy method to sort ascending. If you had an object list, you would change the return type of the (i => i) to have the property for example date would look like .OrderByDescending<string, DateTime>(i => i.SomeDate)
If you just want to keep https://localhost/ at the top, then:
int i = items.FindIndex(delegate(string s) { return s.Contains("localhost"); });
if (i > -1) {
string localhost = items[i];
items.RemoveAt(i);
items.Insert(0, localhost);
}
MyDataGridView.DataSource = items;
...
If instead you wanted to specifically float localhost to the top, but sort the rest ascending, you could instead do something like this:
MyDataGridView.DataSource = MyList
.OrderByDescending(i => i.Contains("://localhost/", StringComparison.OrdinalIgnoreCase))
.ThenBy(i => i)
.ToList();
Note that the generic types on the methods can usually be inferred by the compiler.
