C# setting multiple properties through a single assignment

Question

I have a property that is assigned as:

public string propertyA{get;set;}

I want to call a method automatically when this property is set to assign another property in the class. Best way to trigger the call?

cgreeno · Accepted Answer · 2009-02-27 17:36:28Z

14

You don't have to use that syntax that is just shorthand. If you expand it you can do whatever you like in the setter.

 public string PropertyA
 {
       get { return a; }
       set 
       {
            a = value;
            doStuff(); 
       }
 }

edited Feb 27, 2009 at 17:36

answered Feb 24, 2009 at 17:32

cgreeno

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Comments

eduesing · Accepted Answer · 2009-02-24 17:32:21Z

4

I think you'll have to go back to doing your property the old fashioned way.

private string _PropertyA;

public string propertyA
{
    get
    {
       return _PropertyA;
    }
    set
    {
       _PropertyA=value;
       //Set other parameter
    }
}

answered Feb 24, 2009 at 17:32

eduesing

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Comments

Jeff Martin · Accepted Answer · 2009-02-24 17:31:06Z

2

Expand out the property setter and assign the other property.

answered Feb 24, 2009 at 17:31

Jeff Martin

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Comments

tvanfosson · Accepted Answer · 2009-02-24 17:32:08Z

2

Add the backing field manually and provide some code to do what you want in the settor.

private string propertyA;
public string PropertyA
{
    get { return this.propertyA; }
    set
    {
         this.propertyA = value;
         this.propertyB = value + "B";
    }
}

answered Feb 24, 2009 at 17:32

tvanfosson

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Comments

mbillard · Accepted Answer · 2009-02-24 17:32:37Z

1

Define the setter.

Inside it either trigger an event or directly assign the other property.

answered Feb 24, 2009 at 17:32

mbillard

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