MultidimensionalArrayItemReference<TItem> Klass

Definition

generic <typename TItem>
public ref class MultidimensionalArrayItemReference sealed : System::Activities::CodeActivity<System::Activities::Location<TItem> ^>

[System.Windows.Markup.ContentProperty("Indices")]
public sealed class MultidimensionalArrayItemReference<TItem> : System.Activities.CodeActivity<System.Activities.Location<TItem>>

[<System.Windows.Markup.ContentProperty("Indices")>]
type MultidimensionalArrayItemReference<'Item> = class
    inherit CodeActivity<Location<'Item>>

Public NotInheritable Class MultidimensionalArrayItemReference(Of TItem)
Inherits CodeActivity(Of Location(Of TItem))

Typparametrar

Arv

Object

Activity

ActivityWithResult

Activity<TResult>

CodeActivity<Location<TItem>>

MultidimensionalArrayItemReference<TItem>

Attribut

ContentPropertyAttribute

Exempel

I följande kodexempel används MultidimensionalArrayItemReference<TItem> i en Assign aktivitet för att tilldela ett heltalsvärde till matriselementet på rad 1 och kolumn 2 och skriver ut värdet för matriselementet till -konsolen. Aktiviteten Assign motsvarar följande -instruktion när du använder matriser: array[1, 2] = 1;.

public static void MultidimensionalArrayItemReferenceSample()
{
    // Create a variable to store a multidimensional array.
    var arrayvar = new Variable<int[,]>("arrayvar", new int[4, 5]);

    Activity myActivity = new Sequence
    {
        Variables = { arrayvar },
        Activities =
        {
            // Create an Assign activity to assign a value to the array item at index [1,2].
            new Assign<int>
            {
                To = new MultidimensionalArrayItemReference<int>
                {
                    Array = arrayvar,
                    Indices = {1, 2}
                },
                // Assign an integer value to the array item at row 1 column 2.
                Value = 1,
            },
            // Print the array item value to the console.
            new WriteLine()
            {
                Text = ExpressionServices.Convert<string>(ctx => arrayvar.Get(ctx)[1, 2].ToString()),
            }
        }
    };

    // Invoke the Sequence activity.
    WorkflowInvoker.Invoke(myActivity);
}