Count items in List(Of structure) using predicate in .NET 2.0/VB.NET
I need to count the items that meet a criteria in a List(Of Structure)
in .NET 2.0. For example:
Dim listcars as New List(Of car)
Structure car
Dim Name as String
Dim year as Integer
End structure
Now I need to count all cars with name Toyota, etc.开发者_StackOverflow. How do I do it?
Dim toyotas As Integer = carList.Count(Function(c) c.Name = "Toyota")
You want List.LongCount
.
Dim CarList As New List(Of Car)
Dim Model As String = "Toyota"
Dim ToyotaCount As Long = CarList.LongCount(Function(car) car.Name = Model)
Here you go.
var count = carList.Count(x => x.Name == "Toyota");
The syntax is blatantly wrong, but something like this:
Dim toyotas as Integer;
toyotas = 0;
foreach(car c in listcars){
if(c.Name == "toyota")//make sure to do string comparison here.
toyotas++;
}
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